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Table 3 Physical function, strength and body composition from baseline to four and eight months

From: Effectiveness of a resistance training program on physical function, muscle strength, and body composition in community-dwelling older adults receiving home care: a cluster-randomized controlled trial

Outcome

Analyzed

Baseline

Mean

(95% CI)

4 months

Between-group

difference

8 months

Between-group difference

RTG

n

CG

n

RTG

Mean

(95% CI)

CG

Mean

(95% CI)

Mean

(95% CI)

p

RTG

Mean

(95% CI)

CG

Mean

(95% CI)

Mean

(95% CI)

p

Chair rise (s)a

63

42

18.6

(17.0–20.2)

16.7

(15.1–18.6)

16.0

(14.0–18.2)

1.05

(0.91–1.20)

0.500

15.2

(13.5–17.2)

18.6

(16.2–21.3)

0.81

(0.70–0.96)

0.010

8 ft-up-and-go (s)a

63

41

14.1

(12.3–16.1)

13.2

(11.5–15.0)

13.8

(11.9–16.0)

0.96

(0.87–1.05)

0.350

13.0

(11.2–15.0)

14.6

(12.5–16.9)

0.89

(0.80–0.99)

0.030

Stair climb (s)a

56

20

26.2

(22.2–30.9)

23.8

(20.0–28.4)

29.0

(23.3–36.2)

0.82

(0.69–0.98)

0.030

23.2

(19.3–27.9)

30.5

(24.2–38.5)

0.76

(0.62–0.93)

0.007

Preferred gait speed (m/s)a

63

41

0.73

(0.67–0.79)

0.75

(0.69–0.82)

0.74

(0.66–0.81)

0.01

(−0.04–0.07)

0.600

0.77

(0.70–0.85)

0.68

(0.60–0.76)

0.09

(0.03–0.16)

0.006

Maximal gait speed (m/s)a

63

41

1.01

(0.92–1.10)

1.06

(0.96–1.15)

0.97

(0.86–1.07)

0.09

(0.02–0.16)

0.010

1.04

(0.94–1.15)

0.95

(0.85–1.06)

0.09

(0.00–0.17)

0.030

Grip strength (kg)

64

42

26.4

(24.7–28.0)

26.5

(24.6–28.4)

24.9

(22.7–27.0)

1.2

(−0.5–3.7)

0.134

22.7

(20.5–24.9)

23.3

(21.0–25.5)

−0.6

(−3.0–1.9)

0.639

Leg MVC (N)

64

42

181

(166–195)

195

(179–212)

179

(160–198)

16 (−2–34)

0.074

201

(182–219)

175

(155–194)

26 (6–46)

0.010

Leg MVC relative (N/kg)

63

42

2.6

(2.4–2.8)

2.8

(2.6–3.0)

2.6

(2.3–2.8)

0.2

(−0.02–0.5)

0.073

2.9

(2.7–3.1)

2.5

(2.3–2.8)

0.4

(0.1–0.7)

0.005

Leg RFD (N/s)

64

42

431

(365–497)

436

(356–517)

337

(241–434)

99

(−8–205)

0.069

384

(292–476)

383

(282–483)

1

(− 118–120)

0.982

BMI (kg/m2)a

63

43

26.4

(25.4–27.5)

26.6

(25.5–27.7)

26.5

(25.4–27.7)

1.00

(0.98–1.02)

0.890

26.3

(25.2–27.4)

26.5

(25.3–27.6)

0.99

(0.97–1.02)

0.600

Fat mass (%)a

59

37

28.9

(26.6–31.4)

28.9

(26.4–31.7)

27.8

(25.0–30.9)

1.04

(0.95–1.14)

0.380

28.2

(25.5–31.2)

29.7

(26.7–33.0)

0.95

(0.86–1.05)

0.310

Fat free mass (kg)a

59

35

47.2

(44.6–49.9)

47.5

(44.9–50.3)

47.1

(44.4–49.9)

1.01

(0.99–1.03)

0.390

46.8

(44.2–49.6)

47.1

(44.4–49.9)

0.99

(0.97–1.02)

0.670

  1. Estimated means and 95% confidence intervals (95% CI) using linear mixed models (unadjusted model). a Between-group differences for transformed variables are presented as ratio of the geometric mean for RTG to the geometric mean for CG with corresponding 95% CI
  2. RTG Resistance training group, CG Control group, MVC Maximal voluntary contraction, RFD Rate of force development, N Newton