Figure 4.

The effects of relaxation kinetics, cycle frequency and muscle length on muscular work. A: Average work performed during work loops and discrete shortening contractions centered across L_o and at lengths that represent walking gait. (* indicates significant differences between work produced during work loops and discrete shortening contractions across L_o. # indicates significant differences between work produced during work loops centered about L_o and those that represent gait excursions.) B: Work produced during work loops expressed as a percentage of work produced during discrete shortening contractions. C: The difference in work between work loops and discrete shortening contractions. For B and C, * indicates significant difference within each cycle frequency.