- Research article
- Open Access
Masters or pawns? Examining injury and chronic disease in male Masters Athletes and chess players compared to population norms from the Canadian Community Health Survey
© The Author(s) 2018
- Received: 19 June 2018
- Accepted: 16 November 2018
- Published: 30 November 2018
Identifying the optimal type and amount of activity for the maintenance of function in older adults has proved challenging. On the one hand, Masters Athletes have been proposed as the ideal model of successful aging but most of this research has focused on physical functioning. On the other hand, the importance of cognitive engagement has been emphasized, which may be more strongly related to activities such as playing chess. The current study aimed to compare physical health outcomes (i.e., prevalence of physical injury and chronic disease) among older athletes and chess players. Masters Athletes and chess players were recruited from track and field and chess competitions within the province of Ontario. In addition to these primary groups, moderately active and inactive older adults from Canadian Community Health Survey were also included for comparison.
Masters Athletes had significantly higher rates of injury with the lowest rates of chronic disease, compared to all other activity groups. In contrast, chess players reported lower rates of injury compared to Masters Athletes as well as lower prevalence of chronic diseases compared to the moderately active and inactive groups. The normative groups reported the lowest rate of injury, but increased prevalence of chronic diseases compared to Masters Athletes and chess players.
Findings from this study indicate that both athletic and cognitive engagement may be positively related to the physical health of older adults, since Masters Athletes and chess players reported a lower prevalence of chronic disease. Importantly, the results expand our current understanding of health by providing evidence for physical health outcomes associated with an activity that is primarily associated with cognitive health.
- Masters athletes
- Chess players
- Chronic disease & older adults
Many older adults have an increased likelihood of living longer with multiple comorbidities (e.g., arthritis, high blood pressure, injury) that can require continual financial and medical care [1–3]. Additionally, because many health care systems were designed to provide acute, episodic care for a relatively young population, these systems are ill equipped to manage the complex health care needs of this population (~ 75–80% reporting one or more chronic diseases) [4–6]. Fortunately, modifiable lifestyle factors such as participating in physically and cognitively challenging activities can be useful for mitigating and managing many health-related issues among older adults [3, 7]. Engagement in diverse forms of activities has been shown to provide a wide range of physical [8, 9], cognitive [10, 11] and psychosocial benefits [12–15]. Different types of activities may also provide different health benefits, which can be crucial in maintaining overall well-being to age successfully [16–19].
Interestingly, while there is considerable evidence emphasizing the benefits of maintaining an active lifestyle irrespective of age [7, 20], most studies of older adults have focused on activities of low to moderate exercise intensity (i.e., walking, dancing, fitness classes) , and, as a result, we have little information on the health outcomes associated with older adults who regularly participate in more intensive activities such as competitive sport [21, 22]. However, the growing number of baby boomers competing in sport has recently caught the attention of researchers interested in optimizing the health and function of older adults [23, 24]. Moreover, there is increasing momentum for participation in competitive sport. For example, participation in the World Masters Games has increased from 8305 competitors in 1985 to 28,905 in 2017 . In Canada, a 2 to 3-fold increase has been observed in the number of sport participants aged 55 and above . This proliferation has motivated researchers to examine Masters Athletes, defined as individuals generally above the age of 35 who continually maintain a high intensity of exercise by competing in Master sport .
Despite having little information on the health and functional benefits of competitive sport [22, 24], some researchers have proposed older (i.e., Masters) athletes as the ideal model of successful aging . A large body of evidence with this group has focused on areas such as maintaining performance despite declines in physical function or modulating the factors responsible for age-related decline [28–31]. Interestingly, research on the health and function of Masters Athletes, suggest continual participation in sport is associated with lower risk of certain chronic diseases (e.g., chronic chest pain, asthma, heart attack and diabetes) [12, 32]. In addition, while there is some information on sport-related injury among older athletes [26, 31, 33–35], little is known on the prevalence of injury in older Masters Athletes in comparison to non-athletes [36, 37]. This could be important, since regular sport participation can accelerate the onset of conditions such as osteoarthritis as a result of overuse , whereas some chronic diseases (e.g., osteoporosis) can increase the risk of severe injury [32, 39].
Furthermore, the literature on healthy aging in older adults has primarily focused on the benefits of physical engagement, with much less attention dedicated to other types of engagement . This is surprising since physical activity (i.e., sport) represents only one of the many types of active engagement older adults may experience and other types of activities may be beneficial for maintaining other components of health [13, 40]. For example, previous research suggests cognitive engagement has many associated mental health benefits (e.g., improvement of memory or delaying dementia) and is useful for maintaining cognitive function [11, 41–43]. This type of active engagement is especially important to help manage the 66% rise in older adults with dementia expected to occur in the next few years . Furthermore, in relation to physical health, previous studies have found older adults with some chronic diseases (e.g., hypertension, heart disease, chronic obstructive pulmonary disorder) score significantly lower on cognitive performance tasks (e.g., block design, object assembly, word recall, visuospatial tests) compared to older adults without these diseases [44–46].
Interestingly, none of the studies of Masters Athletes has considered them relative to other forms of engagement. To this end, we compared the physical health of older adults, who participated in competitive sport with similar aged older adults (i.e., 50 years and above) who competed in chess competitions during the time of data collection. This activity was chosen because of its popularity, objective performance measure (i.e., Elo score), and the intense practice required to become an expert competitive participant [47, 48]. This allows for an intriguing comparison between older adults who are highly physically active with those who are highly cognitively active. Moreover, exploring competitive chess may increase our understanding on the health outcomes associated with older adults who are actively engaged in a sedentary activity. Based on limited past research [32, 49], we hypothesized Master Athletes would have the highest rates of injury and the lowest prevalence of chronic disease when compared to chess players and normative groups, due to their continual participation in vigorous activity.
A cross-sectional between subjects design was used to compare Masters Athletes, and chess players. In addition, these two primary groups were compared to normative data representing two groups: moderately active and inactive older adults. These data were drawn from the Canadian Community Health Survey (CCHS) cycle 4.1, a large-scale National survey that is representative of the Canadian population 1 Masters Athletes and chess players were recruited from local track and field and chess competitions organized by Ontario Masters Athletics and The Chess Federation of Canada, respectively. Electronic versions of the questionnaire were also provided by email and made available on their websites. Researchers from this study obtained informed consent from all athletes and chess players prior to completing the survey and this project received institutional ethics approval (e2015–232).
Following ethics approval, researchers contacted various Masters and chess clubs, events and competitions taking place in Ontario. Over a 5-month period, a total of 146 Masters track and field athletes were recruited from 9 clubs and competitions that agreed to participate in the study (i.e., Taylor Creek 5 K Cross Country, Don Farquharson Harriers 4 k, Sunnybrook 8 k, Ontario Cross Country Championships, Canadian Cross Country Championships, New Market Huskies, University of Toronto Track, Longboat runners, and Black Lungs Toronto). Concurrently, a total of 68 chess players were recruited from 6 clubs and competitions (i.e., Harbourfront Centre Chess-fest competition, Kitchener-Waterloo Chess competition, Annex Chess, Kingsview Chess, Willowdale Chess, and Chess Institute of Canada). After limiting the sample to those who were aged 50 and above, completed the injury and chronic disease section, and male,2 a total of 50 chess players and 69 Masters Athletes were included in the final analyses. Similarly, after following the same filtering procedure as well as case-matching on socio-demographic variables with Masters Athletes, a total of 64 moderately active and 62 inactive older adults were randomly selected from the CCHS dataset for inclusion in the secondary comparison.
In order to facilitate comparisons between our primary groups of interest (i.e., Masters Athletes and chess player) and the normative groups selected from the CCHS (i.e., moderately active and inactive), all questions were drawn from the CCHS dataset. Each question is described below.
Prevalence of injury was defined and measured using the following questions: In the past 12 months, did you experience an injury which limited your normal activities? If “yes” did you sustained “1”, “2”, “3 to 5”, or “6 or more injuries” . To verify that reported injuries corresponded with the number of injuries reported and were acute in nature (e.g., participants with repetitive knee pain would be removed), responses were compared with another question regarding type of injuries . As a result, participants were removed if there were any discrepancies between the number of injuries and types of injuries sustained in the past 12 months (e.g., if they reported 3 to 5 injuries in total but 7 sprain and strain injuries).
The presence of chronic disease was defined and measured using the following question: In the past 6 months or more, were you diagnosed by a health professional with a type of chronic disease? If yes, please specify the type of chronic disease . The original scoring of this question used “yes = 1” and “no = 2” and in the current analyses all sixteen chronic diseases questions were combined into a total score, where lower scores reflected greater prevalence of chronic disease (e.g., a score of 32 would reflect the sum of all “no = 2” and therefore equal “no chronic disease”, 31 = “one chronic disease” and so on). Due to the distribution of chronic disease across our samples and to simplify the reporting of our analyses, respondents were coded as either zero, one, two, three, or four or more chronic diseases.
The physical activity index was selected from the CCHS 4.1 because it had a clear definition for active, moderately active and inactive older adults according to average daily energy expenditure (EE).3 To this end, ‘active’ participants expended > 2.9 kcal/kg/d, ‘moderately active’ expended between 1.5 to < 3 kcal/kg/d and ‘inactive’ expended < 1.5 kcal/kg/d . In order to compare the normative groups with Masters Athletes, the ‘active group’ (i.e., > 2.9 kcal/kg/d) from the CCHS 4.1 was removed to ensure no overlap between those reporting high levels of physical activity and exercise (which may have included older sport participants) and our Masters athlete group. Similarly, chess players who expended > 2.9 kcal/kg/d were removed from the dataset. Finally, in line with previous research, this study accounted for possible socio-demographic variables that may pose as confounders such as marital status, income, education, and age .
A multi-pronged approach was considered due to the increased variability between the activity groups. Preliminary normality analyses from the Shapiro-Wilks tests, suggested Masters athletes and chess players were not normality distributed in their demographics (i.e., age and income) compared to the normative groups. As a result, Kruskal-Wallis (K-W) non-parametric tests were performed to compare mean ranks among activity groups; however, non-parametric tests can be problematic when variability differs between groups (e.g., sport, physical activity and chess). As a result, K-W tests were followed by analysis of covariance (ANCOVA) tests using Bonferroni post hoc tests with an adjusted alpha of 0.0125. Pre-analyses (see Table 1) indicated the athletes and chess players were predominantly mid-aged (50–59 years), affluent (≥ $80,000), married/domestic relationship and educated (post-secondary graduate). In an attempt to create more homogeneous groups for comparisons, moderately active and inactive groups were case-matched on age and income with the Masters Athletes and then randomly selected from the larger group to create analogous sample sizes. To account for possible variability that may still exist between chess players and normative groups, socio-demographic variables were included as covariates in the ANCOVA analyses. Repeating the non-parametric and parametric tests on the case-matched dataset helped eliminate potential confounders, increase validity, and gain coherence between groups. Finally, Chi-square analyses were performed to compare types of injuries and chronic diseases reported by the activity groups.
Background information on athletes, chess players, moderately and inactive older adults (N = 245)
80 and above
$60,000 - $79,000
$80,000 or more
< Secondary school
< 5 years
6 to 15 years
16 to 20 years
21 or more years
Practice for activity (hrs/week)
< 5 h
6 to 15 h
16 to 20 h
21 or more hours
Total (N = 245)
Prevalence of injuries reported by athletes, chess players, moderately activity and inactive older adults
(A) Masters Athletes
AxB*, AxC*, AxD*
(C) Moderately activity
Prevalence of chronic diseases reported by athletes, chess players, moderately activity and inactive older adults
(A) Masters Athletes
(C) Moderately activity
Types of injuries experienced by athletes, chess players, moderately activity and inactive older adults
Broken or fractured bones
Sprain or Strain
Cut or puncture
Types of chronic diseases experienced by athletes, chess players, moderately activity and inactive older adults
Stomach or intestinal ulcers
Total (N = 109)
Advancing age is a unique constraint on health and function. It acts as both a risk factor for many health outcomes and a barrier to participation in physical or cognitive activities as well as other preventive behaviours such as medical physical examinations . With this in mind, the current study compared injury and chronic disease rates among groups of older adults who maintained competitive involvement in a physically or cognitively challenging activity – namely, Masters Athletes and chess players. In addition, these two primary groups were compared to normative data from moderately active and inactive older adults .
In congruence with previous research [26, 49, 51], Masters Athletes reported significantly higher rate of injuries compared to all activity groups in the study; however, the partial η2 value (0.27) corresponded to a small effect size, perhaps due to the small samples . Results from this study also reinforce findings from previous literature suggesting risk of injury can be higher in vigorous forms of physical activity such as competitive sport [32, 49]. Interestingly, the most common types of injuries among athletes were a sprain/strain and multiple injuries. In line with our findings, previous literature on Masters sport [32, 54, 55] suggests track and field athletes primarily experience minor orthopedic injuries in the lower extremities. Specifically, runners commonly sustain overuse injuries, knee pain, Achilles tendon issues, plantar fasciitis and shin splints . In contrast, chess players primarily sustained multiple injuries and/or a scrape/bruise, while inactive older adults were found to be the only group to report broken bones.
In terms of chronic disease, type of activity significantly influenced the prevalence of chronic disease reported by older adults, although, once again, the effect size was small. Masters Athletes were significantly different to the normative groups on chronic disease prevalence, but not the chess players. Previous studies indicate sport participants have a significantly lower prevalence of chronic diseases compared to non-athletes [32, 56]. In addition to participation in often vigorous competition, lower prevalence of chronic disease could be contributed by additional lifestyle behaviors such as eating a healthy diet or limiting alcohol intake, cigarette smoking or sedentary time to a greater extent than the ‘average’ older adult . As a result, increased participation in these various positive lifestyle behaviors may have improved the health outcomes of athletes.
Interestingly, chess players were also associated with a lower prevalence of chronic disease than the normative groups, even though increased sedentary time is recognized as an independent contributor for the decline in physical health . Although chess is a sedentary activity, the competitive nature of the game can elicit certain physiological responses  that may encourage players to practice positive health behaviours (e.g., reduce smoking, healthy eating, regular medical examinations and positive expectations regarding aging) to advance in their level of competition [40, 52]. This is congruent with reports of chess grandmasters and championship competitors employing nutritionists and/or exercise trainers to prepare for the physical endurance required for matches . Furthermore, similar to elite sport players, chess grandmasters are associated with a significantly greater life expectancy than the general population  suggesting competitive chess provides similar physical health benefits (i.e., mitigate chronic diseases) to competitive sport. In contrast, older adults who avoid cognitive engagement may find it challenging to manage not only cognitive and mental health [44–46, 59] but also physical health.
While considerable additional work is necessary to validate and replicate these results, they suggest competitive chess could be a viable option for older adults who are unable to participate in sport, since prevalence of a chronic disease was 3–4 times higher in the inactive group than Masters Athletes and chess players. Both normative groups reported increased prevalence of arthritis, high-blood pressure and back problems. Furthermore, future work is needed to determine whether these differences are due to participation in the activity itself (e.g., competition in a cognitively or physically challenging task) or to variables that might be related to these relatively unique groups (e.g., greater involvement in preventive health activities). These studies will extend our knowledge of the level and type of activity required to optimize health and function, as well as confirm whether participation in an intense cognitive activity alone can mitigate chronic disease amongst older adults. Given that chess players reported lower incident of injuries than Masters Athletes as well as a lower prevalence of chronic diseases compared to moderately active and inactive groups, it begs the question ‘why is the gold standard for successful aging only associated with those who participate in competitive sport?’ as suggested by Hawkins et al. . Perhaps this label could be expanded to include other forms of competitive activity. Moreover, our lack of understanding regarding the consequences of competitive sport [24, 60], highlights the need to refrain from labeling Masters Athletes as the ideal model for successful aging, at least until additional work has been conducted. Furthermore, from a health promotion standpoint, advocating sport as a preventive health strategy may be problematic, particularly for individuals who have a) debilitating chronic diseases and/or socio-demographic barriers that can limit participation in sport [7, 61] or b) internalized the pervasive old age stereotypes in North American society and likely avoid participation in competitive sport . Our study suggests older adults may have other options, such as competitive chess, to gain similar health benefits to sport participation. Moreover, it is possible older adults who participate in a variety of activities (e.g., chess and sport) may gain a combination of physical and cognitive health benefits [13, 62]. For that reason, advocating programs designed to cognitively and physically engage older persons may be a pragmatic response from both a health and an economic standpoint.
While this study had its strengths, by including a nationally representative dataset to generate normative data for group-based comparisons, as well as two unique activity groups, there were some limitations. For instance, Masters Athletes and chess players resided in the province of Ontario, whereas the normative groups were from Nova Scotia and British Columbia,4 which limits generalizations to other provinces or countries outside of Canada. Findings should also not be generalized to females, since all participants in this study were males. In addition, a cross-sectional study design limits our ability to test causal relationships between sport and chess participation and the physical health of older adults, since other genetic or environmental factors may be involved. Although not a limitation, this study did not compare ‘active’ older adults (i.e., the most active group in the CCHS) with Masters Athletes due to concerns about overlap between these groups. As a result, this limits what we can say about the value of high levels of sport participation compared to high levels of exercise involvement. It was also difficult to capture the nuances of socioeconomic status and its influence on the health of older adults, especially between the chess players and athletes, which would seem to be privileged groups. In addition, creating a more homogenous sub-sample may have concealed the effects of socio-demographic factors on the physical health of moderately active and inactive older adults, where the prevalence of chronic disease may have actually been higher among normative groups. Lastly, injured athletes and chess players who were unable to compete during the time of data collection may have led to an underestimation of injury and chronic disease.
Older adults who are competitively active in sport and chess are able to mitigate the prevalence of chronic diseases compared to the general population. Interestingly, chess participation also resulted in a lower prevalence of injury. Therefore, for adults who are unable to be physically active, competitive chess may provide an alternative way to maintain both cognitive function and physical health, although the precise mechanisms of these effects are not clear.
Researchers were limited to this cycle because injury and chronic disease questions used to recruit the primary groups were revised in the following cycles.
Sampling was limited to males because 100% of chess players were male.
EE (energy expenditure) = Frequency of the activity x Duration of activity (hours) x MET value (kcal.kg.hr)/365 days.
The CCHS includes many optional modules which health regions within provinces can opt out of according to their priorities.
We would like to extend our gratitude towards Doug Smith president of Ontario Masters Athletics and Ted Winick, president of Chess Institute of Canada, who enthusiastically supported data collection with their competitors.
York University Open Access Fund.
Availability of data and materials
The Canadian Community Health Survey dataset analyzed during the current study are available in the Statistics Canada website: http://www23.statcan.gc.ca/imdb/p2SV.pl?Function=getSurvey&Id=29539. Chess and Masters Athletes datasets generated and analyzed during the current study are not publicly available due ethical constraints and protection of the participants’ information but could be provided by the corresponding author on reasonable request.
SP performed the case-matched and non case-matched analyses, and was the major contributor in writing the manuscript. RCS assisted in participant recruitment, preliminarily analysis and helped structure the manuscript. RE assisted in participant recruitment and organization of dataset. MA performed the chi-square analyses for type of injury and chronic disease. JB supervised the entire project and provided guidance during each phase of the study: recruitment, analyses and editing the manuscript. All authors read and approved the final manuscript.
Ethics approval and consent to participate
This project received ethics approval from the Human Participants Review Sub-Committee (certificate number: e2015–232) and informed consent was obtained from all participants.
Consent for publication
Authors provide consent for publication and agree to the conditions of submission.
The authors declare that they have no competing interests.
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
- Public Health Agency of Canada. Healthy aging in Canada: a new vision, a vital investment. 2011. http://www.phac-aspc.gc.ca/seniors-aines/alt-formats/pdf/publications/public/healthy-sante/vision/vision-eng.pdf. Accessed 06 Mar 2016.
- Canadian Medical Association. The state of seniors health care in Canada. 2016. https://www.cma.ca/En/Lists/Medias/the-state-of-seniors-health-care-in-canada-september-2016.pdf. Accessed 06 Oct 2016.
- British Columbia Ministry Of Health. Healthy aging through healthy living: towards a comprehensive policy and planning framework seniors in B.C. 2005. https://www.health.gov.bc.ca/library/publications/year/2005/healthy_aging.pdf. Accessed 09 Feb 2016.
- The Canadian Medical Association. Health and health care for an aging population. 2013. https://www.cma.ca/Assets/assets-library/document/en/advocacy/policy-research/CMA_Policy_Health_and_Health_Care_for_an_Aging-Population_PD14-03-e.pdf. Accessed 06 Mar 2016.
- Statistics Canada. Canada’ s population estimates: age and sex, July 1, 2015. 2015. https://www150.statcan.gc.ca/n1/daily-quotidien/150929/dq150929b-eng.htm. Accessed 09 Feb 2016.
- Canadian Institute for Health Information. Health care in Canada, 2011: A focus on senior and aging. 2011. https://secure.cihi.ca/free_products/HCIC_2011_seniors_report_en.pdf. Accessed 06 Mar 2016.
- Ashe MC, Miller WC, Eng JJ, Noreau L, Activity P, Chronic Conditions Research Team. Older adults, chronic disease and leisure-time physical activity. Gerontology. 2009;55:64–72.View ArticleGoogle Scholar
- Wroblewski AP, Amati F, Smiley MA, Goodpaster B, Wright V. Chronic exercise preserves lean muscle mass in masters athletes. Phys Sportsmed. 2011;39:172–8.View ArticleGoogle Scholar
- Bassuk SS, Manson JE. Epidemiological evidence for the role of physical activity in reducing risk of type 2 diabetes and cardiovascular disease. J Appl Physiol. 2005;99:1193–204.View ArticleGoogle Scholar
- Zhao E, Tranovich MJ, DeAngelo R, Kontos AP, Wright VJ. Chronic exercise preserves brain function in masters athletes when compared to sedentary counterparts. Phys Sportsmed. 2016;44:8–13.View ArticleGoogle Scholar
- Kelly ME, Loughrey D, Lawlor BA, Robertson IH, Walsh C, Brennan S. The impact of cognitive training and mental stimulation on cognitive and everyday functioning of healthy older adults: a systematic review and meta-analysis. Ageing Res Rev. 2014;15:28–43.View ArticleGoogle Scholar
- Shephard RJ, Kavanagh T, Mertens DJ, Qureshi S, Clark M. Personal health benefits of masters athletics competition. Br J Sports Med. 1995;29:35–40.View ArticleGoogle Scholar
- Heo J, Culp B, Yamada N, Won Y. Promoting successful aging through competitive sports participation: insights from older adults. Qual Health Res. 2013;23:105–13.View ArticleGoogle Scholar
- Dionigi RA, Baker J, Horton S. Older athletes’ perceived benefits of competition. Int J Sport Soc. 2011;2:17–28.Google Scholar
- Dionigi RA, Fraser-Thomas J, Stone RC, Gayman AM. Psychosocial development through masters sport: what can be gained from youth sport models? J Sports Sci. 2018;36:1533–41.View ArticleGoogle Scholar
- Menec VH. The relation between everyday activities and successful aging: a 6-year longitudinal study. J Gerontol Ser B Psychol Sci Soc Sci. 2003;58:74–82.View ArticleGoogle Scholar
- Bouaziz W, Lang PO, Schmitt E, Kaltenbach G, Geny B, Vogel T. Health benefits of multicomponent training programmes in seniors: a systematic review. Int J Clin Pract. 2016;70:520–36.View ArticleGoogle Scholar
- Rowe JW, Kahn RL. Human aging: usual and successful. Science. 1987;237:143–9.View ArticleGoogle Scholar
- Rowe JW, Kahn RL. Successful aging. Gerontologist. 1997;37:433–40.View ArticleGoogle Scholar
- Liechty T, West S, Naar J, Son J. Perceptions of ageing among older women softball players. Ann Leis Res. 2017;20:295–13.Google Scholar
- Dionigi R. Competitive sport and aging: the need for qualitative sociological research. J Aging Phys Act. 2006;14:365–79.View ArticleGoogle Scholar
- Baker J, Fraser-Thomas J, Dionigi RA, Horton S. Sport participation and positive development in older persons. Eur Rev Aging Phys Act. 2010;7:3–12.View ArticleGoogle Scholar
- Weir P, Baker J, Horton S. The emergence of masters sport: participatory trends and historical developments. In: Baker J, Horton S, Weir P, editors. The masters athlete: understanding the role of sport and exercise in optimizing aging. London: Routledge; 2009. p. 7–14.Google Scholar
- Stone RC, Rakhamilova Z, Gage WH, Baker J. Curling for confidence: psychophysical benefits of curling for older adults. J Aging Phys Act. 2018;26:267–75.Google Scholar
- International Masters Games Association. Post-event evaluation of world masters games 2017. Auckland; 2017. https://www.imga.ch/assets/Uploads/Reports/Economic-Evaluation-of-WMG-2017.pdf. Accessed 07 Oct 2018.
- McKean KA, Manson NA, Stanish WD. Musculoskeletal injury in the masters runners. Clin J Sport Med. 2006;16:149–54.View ArticleGoogle Scholar
- Hawkins SA, Wiswell RA, Marcell TJ. Exercise and the master athlete--a model of successful aging? J Gerontol Ser A Biol Sci Med Sci. 2003;58:1009–11.View ArticleGoogle Scholar
- Tanaka H, Seals DR. Endurance exercise performance in masters athletes: age-associated changes and underlying physiological mechanisms. J Physiol. 2008;586:55–63.View ArticleGoogle Scholar
- Tanaka H, Seals DR. Invited review: dynamic exercise performance in masters athletes: insight into the effects of primary human aging on physiological functional capacity. J Appl Physiol. 2003;95:2152–62.View ArticleGoogle Scholar
- Reaburn P, Dascombe B. Endurance performance in masters athletes. Eur Rev Aging Phys Act. 2008;5:31–42.View ArticleGoogle Scholar
- Maharam LG, Bauman PA, Kalman D, Skolnik H, Perle SM. Masters athletes: factors affecting performance. Sport Med. 1999;28:273–85.View ArticleGoogle Scholar
- Kettunen JA, Kujala UM, Kaprio J, Sarna S. Health of master track and field athletes: a 16-year follow-up study. Clin J Sport Med. 2006;16:142–8.View ArticleGoogle Scholar
- Walsh J, Climstein M, Heazlewood IT, DeBeliso M, Kettunen J, Sevene TG, et al. Masters athletes: no evidence of increased incidence of injury in football code athletes. Adv Phys Educ. 2013;03:36–42.View ArticleGoogle Scholar
- Kammerlander C, Braito M, Kates S, Jeske C, Roth T, Blauth M, et al. The epidemiology of sports-related injuries in older adults: a central European epidemiologic study. Aging Clin Exp Res. 2012;24:448–54.PubMedGoogle Scholar
- Kallinen M, Alen M. Sports-related injuries in elderly men still active in sports. Br J Sports Med. 1994;28:52–5.View ArticleGoogle Scholar
- Hootman JM, Macera CA, Ainsworth BE, Addy CL, Martin M, Blair SN. Epidemiology of musculoskeletal injuries among sedentary and physically active adults. Med Sci Sports Exerc. 2002;34:838–44.View ArticleGoogle Scholar
- Stathokostas L, Theou O, Little RMD, Vandervoort AA, Raina P. Physical activity-related injuries in older adults: a scoping review. Sport Med. 2013;43:955–63.View ArticleGoogle Scholar
- Saxon L, Finch C, Bass S. Sports participation, sports injuries and osteoarthritis: implications for prevention. Sport Med. 1999;28:123–35.View ArticleGoogle Scholar
- Jones CS, Turner LW. Non-equipment exercise-related injuries among U.S. women 65 and older: emergency department visits from 1994–2001. J Women Aging. 2005;17:71–81.View ArticleGoogle Scholar
- Tran-Duy A, Smerdon DC, Clarke PM. Longevity of outstanding sporting achievers: mind versus muscle. PLoS One. 2018;13:e0196938.View ArticleGoogle Scholar
- Wilson RS, Segawa E, Boyle PA, Bennett DA. Influence of late-life cognitive activity on cognitive health. Neurology. 2012;78:1123–9.View ArticleGoogle Scholar
- Willis SL, Tennstedt SL, Marsiske M, Ball K, Elias J, Koepke KM, et al. Long-term effects of cognitive training on everyday functional outcomes in older adults. JAMA. 2006;296:2805–14.View ArticleGoogle Scholar
- Hall CB, Lipton RB, Sliwinski M, Katz MJ, Derby CA, Verghese J. Cognitive activities delay onset of memory decline in persons who develop dementia. Neurology. 2009;73:356–61.View ArticleGoogle Scholar
- Ylikoski R, Ylikoski A, Raininko R, Keskivaara P, Sulkava R, Tilvis R, et al. Cardiovascular diseases, health status, brain imaging findings and neuropsychological functioning in neurologically healthy elderly individuals. Arch Gerontol Geriatr. 2000;30:115–30.View ArticleGoogle Scholar
- Sands LP, Meredith W. Blood pressure and intellectual functioning in late midlife. J Gerontol. 1992;47:P81–4.View ArticleGoogle Scholar
- Moss M, Franks M, Briggs P, Kennedy D, Scholey A. Compromised arterial oxygen saturation in elderly asthma sufferers results in selective cognitive impairment. J Clin Exp Neuropsychol. 2005;27:139–50.View ArticleGoogle Scholar
- Troubat N, Fargeas-Gluck M-A, Tulppo M, Dugué B. The stress of chess players as a model to study the effects of psychological stimuli on physiological responses: an example of substrate oxidation and heart rate variability in man. Eur J Appl Physiol. 2009;105:343–9.View ArticleGoogle Scholar
- Salthouse TA. Mental exercise and mental aging: evaluating the validity of the “use it or lose it” hypothesis. Perspect Psychol Sci. 2006;1:68–87.View ArticleGoogle Scholar
- Hootman JM, Macera CA, Ainsworth BE, Martin M, Addy CL, Blair SN. Association among physical activity level, cardiorespiratory fitness, and risk of musculoskeletal injury. Am J Epidemiol. 2001;154:251–8.View ArticleGoogle Scholar
- Statistics Canada. Canadian community health survey - annual component (CCHS). 2008. http://www23.statcan.gc.ca/imdb/p2SV.pl?Function=getSurvey&Id=29539. Accessed 16 Aug 2015.
- Moreira NB, Mazzardo O, Vagetti GC, De Oliveira V, De Campos W. Quality of life perception of basketball master athletes: association with physical activity level and sports injuries. J Sports Sci. 2016;34:988–96.View ArticleGoogle Scholar
- Meisner BA, Baker J. An exploratory analysis of aging expectations and health care behavior among aging adults. Psychol Aging. 2013;28:99–104.View ArticleGoogle Scholar
- Cohen J. Statistical power analysis for the behavioral sciences. 2nd ed. New York: Routledge Academic; 1988.Google Scholar
- Opar D, Drezner J, Shield A, Williams M, Webner D, Sennett B, et al. Acute injuries in track and field athletes: a 3-year observational study at the Penn relays carnival with epidemiology and medical coverage implications. Am J Sports Med. 2015;43:816–22.View ArticleGoogle Scholar
- Knobloch K, Yoon U, Vogt PM. Acute and overuse injuries correlated to hours of training in master running athletes. Foot ankle Int. 2008;29:671–6.View ArticleGoogle Scholar
- Batista CHX, Soares JM. Is athletic background associated with a future lower prevalence of risk factors for chronic disease? J Exerc Sci Fit. 2014;12:47–54.View ArticleGoogle Scholar
- Dogra S, Stathokostas L. Sedentary behavior and physical activity are independent predictors of successful aging in middle-aged and older adults. J Aging Res. 2012. https://doi.org/10.1155/2012/190654.
- Bergland C. Checkmate! Winning life strategies of a chess grandmaster. Psychol Today. 2013. https://www.psychologytoday.com/ca/blog/the-athletes-way/201305/checkmate-winning-life-strategies-chess-grandmaster. Accessed 06 Mar 2016.
- Yaffe K, Ackerson L, Kurella Tamura M, Le Blanc P, Kusek JW, Sehgal AR, et al. Chronic kidney disease and cognitive function in older adults: findings from the chronic renal insufficiency cohort cognitive study. J Am Geriatr Soc. 2010;58:338–45.View ArticleGoogle Scholar
- Gayman AM, Fraser-Thomas J, Dionigi RA, Horton S, Baker J. Is sport good for older adults? A systematic review of psychosocial outcomes of older adults’ sport participation. Int Rev Sport Exerc Psychol. 2017;10:164–85.View ArticleGoogle Scholar
- Cardenas D, Henderson KA, Wilson BE. Physical activity and senior games participation: benefits, constraints, and behaviors. J Aging Phys Act. 2009;17:135–53.View ArticleGoogle Scholar
- Fratiglioni L, Paillard-Borg S, Winblad B. An active and socially integrated lifestyle in late life might protect against dementia. Lancet Neurol. 2004;3:343–53.View ArticleGoogle Scholar