Table 4.

Mean and standard deviation values for knee flexor muscle peak torque (PT) (Nm), PT adjusted by total body mass (Nm/kg), and PT adjusted by lower-limb lean mass (Nm/kgLM) presented by age group and physical activity group.

Variables	Age Group	Active Group (n = 85)	Inactive Group (n = 62)	ANOVA	F	p Value	Effect Size	Power
PT (Nm)	<50 yrs	69.0 ± 14.7	58.0 ± 15.3	Age group	13.9	<0.001	0.890	0.969
	≥50 yrs	57.1 ± 16.3	50.6 ± 14.9	Physical activity group	11.5	<0.001	0.750	0.921
				Interaction	0.8	0.384	0.005	0.140
PT (Nm/kg)	<50 yrs	1.15 ± 0.25	0.71 ± 0.16	Age group	16.3	<0.001	0.103	0.980
	≥50 yrs	0.97 ± 0.23	0.61 ± 0.17	Physical activity group	122.1	<0.001	0.461	1.000
				Interaction	1.2	0.263	0.009	0.201
PT (Nm/kgLM)	<50 yrs	1.7 ± 0.3	1.4 ± 0.3	Age group	9.1	0.003	0.060	0.851
	≥50 yrs	1.5 ± 0.4	1.3 ± 0.3	Physical activity group	22.7	<0.001	0.137	0.997
				Interaction	0.8	0.385	0.005	0.139

Note. Effect size, η²p; power, 1 − β; PT, peak torque. Data are presented as mean ± standard deviation.