. 2017 Jul 18;12(7):e0181387. doi: 10.1371/journal.pone.0181387

Table 4. Physical function and aerobic fitness assessments.

	SUPP			CON
	Baseline	6wk	19wk	Baseline	6wk	19wk
30s chair stand (stands)¹	12 ± 1^a	13 ± 1^a,b	13 ± 1^b	13 ± 1^a	13 ± 1^a,b	13 ± 1^b
Timed up-and-go (s)¹	7.1 ± 0.2^a	6.9 ± 0.3^a	6.4 ± 0.2^b	7.6 ± 0.3^a	7.0 ± 0.3^a	6.8 ± 0.3^b
6 min walk (m)¹	576 ± 14^a	585 ± 15^a	616 ± 19^b	593 ± 17^a	621 ± 16^a	639 ± 23^b
VO₂peak (mL/kg/min)¹	23.8 ± 0.8^a	24.6 ± 0.9^a	26.2 ± 1.2^b	24.4 ± 0.9^a	24.4 ± 1.1^a	26.4 ± 1.4^b
Peak power (W)¹	154 ± 5^a	157 ± 5^a	164 ± 7^b	158 ± 7^a	158 ± 7^a	178 ± 10^b

Values are mean ± SEM and were analyzed using a linear mixed model with group (SUPP or CON), time (prior to study entry, and weeks 6 and 19), and the group-by-time interaction as fixed factors; subject as a random factor; and baseline values as covariates. For each outcome, different superscript letters represent significant differences over time within each group. Significance accepted as P < 0.05. SUPP, supplement group (n = 25); CON, control group (n = 24); TUG, timed up-and-go; VO₂peak, peak oxygen uptake.

¹Main effect for time (P < 0.05).