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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
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