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. 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

Figure 3.

Figure 3

A. shows the errors of the perturbation and non-perturbation trials for the young and elderly subjects. The white bars represent the young and the dark bars represent the older group. The Y-axis depicts error in centimeters. Error bars represent standard error (± SE).

B. shows the peak long latency responses of the vastus medialis (VM), rectus femoris (RF), vastus lateralis (VL), medial hamstrings (MH) and lateral hamstring (LH). The Y-axis measures the difference of non-perturbation peak EMG activity from perturbation long latency peak EMG activity, as a percent of maximum voluntary isometric contraction (MVIC). The filled symbols represent the young and open symbols represent the older group.