. Author manuscript; available in PMC: 2009 Oct 7.

Published in final edited form as: J Aging Phys Act. 2009 Jul;17(3):327–343. doi: 10.1123/japa.17.3.327

Table 2.

Average muscle synergistic activity (expressed as % MVIC) of the young and elderly groups during the performance of the single leg squat task. Values are means (standard deviations) for the vastus medialis (VM), rectus femoris (RF), vastus lateralis (VL), medial hamstrings (MH) and lateral hamstrings (LH).

Muscle (% MVIC) Mean (SD)	Flexion		Extension
Muscle (% MVIC) Mean (SD)	Young	Elderly	Young	Elderly
VM	23.1 (23.9)	27.9 (20.7)	26.2 (18.3)	68.4 (52.0)
RF	18.4 (25.8)	10.5 (9.0)	19.7 (17.2)	24.7 (15.3)
VL	35.5 (20.1)	28.7 (17.2)	51.9 (21.2)	66.1 (22.2)
MH	15.8 (13.6)	26.2 (23.0)	11.2 (10.2)	9.5 (8.1)
LH	71.3 (42.3)	99.4 (51.8)	35.3 (28.8)	59.4 (45.3)