Skip to main content
. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: Med Sci Sports Exerc. 2011 Mar;43(3):525–532. doi: 10.1249/MSS.0b013e3181f23fe8

Figure 3.

Figure 3

The average musculotendon mechanics of the hamstring muscles over a simulated sprinting gait cycle for a representative subject. The length excursions (Δℓ MT) of the hamstring musculotendons are relatively consistent across running speeds, with the lengthening phase constrained to swing phase. Peak swing phase musculotendon forces increased with speed for each of the hamstring muscles while stance phase peak forces remain invariant with speed. The hamstrings are stretching and do negative work (i.e. integral of negative power) on the system from 50 to 90% of the gait cycle, and then shorten and do positive work at the end of swing through stance phase.