The muscle fibers are too short in the gastrocnemius to do both knee flexion and
plantar flexion at the same time.
Exploring the effect of repetition speed, Tamaki et al. (1996) compared
plantar flexion at three different angular velocities (6, 30 and 60 degrees per second).
Not exact matches
Both muscles contract to produce «
plantar flexion»
at the ankle joint which is the same movement as standing up onto your tip - toes.
The calf muscles display their longest moment arm lengths
at end - range
plantar -
flexion, and their smallest moment arm lengths
at end - range dorsiflexion.
Hip extension, knee extension, and ankle
plantar -
flexion net joint moments increased markedly as side - step distance increased, while hip abduction net joint moments did not alter much
at all.