Not exact matches
However, increases in muscle fascicle length are also likely dependent on the mechanical load incurred by the prime mover, as knee flexion (hamstring only) exercise
seems to lead to greater adaptations in the hamstrings than hip extension (hamstring, gluteus maximus, and
adductor magnus) exercise, even when muscle length at peak contraction is shorter (Bourne et al. 2016).
The obturator externus and pectineus
seem to be less important hip
adductors, with muscle moment arm lengths of just 2.4 cm and 3.2 cm, respectively (Dostal et al. 1986).
Supine isometric hip adduction in 45 degrees of hip and knee flexion and the side - lying hip adduction
seem to be the most effective positions for maximizing
adductor longus EMG amplitude.
Sprint running ability
seems to be mainly determined by the ability of the hamstrings to absorb energy at long muscle lengths, and of the hip extensors (gluteus maximus,
adductor magnus, and hamstrings) and hip flexors to perform concentric work at high velocities while operating at short muscle lengths, all in a horizontal direction.