720246.fig.002a
(a)
720246.fig.002b
(b)
Figure 2: Muscle effect on number of bursts and burst percentage for old adults. (a) Number of bursts; (b) burst percentage. BB: biceps brachii; TB: triceps brachii; VL: vastus lateralis; BF: biceps femoris; %: percentage. aSignificantly different from TB; bsignificantly different from VL.