Table 3.

A comparison of isometric muscle strength, FFM and EMG signal power for the dominant lower limb.

Variables	YO (n=33)	MA (n=15)	OA (n=15)	p value
KES (kgf)	43.2±10.7	35.1±7.0*	27.7±5.8*	<0.001
FFM LL (kg)	7.8±0.8	7.0±1.0*	6.5±0.7*	<0.001
RMSs VL (uV)	29.2±21.5	18.5±12.9*	13.9±8.6*	0.001

Mean ± standard deviation; n = number of participants

^*vs. group YO; YO = young; MA = middle age; OA = older adults; ES = knee extensors strength; FFM = fat-free mass; RMSs = root mean square standardized; VL = vastus lateralis; LL = lower limb