The relationships between muscle, external, internal and joint mechanical work during normal walking.

摘要: Muscle mechanical work is an important biomechanical quantity in human movement analyses and has been estimated using different quantities including external, internal joint work. The goal of this study was to investigate the relationships between these traditionally used estimates walking assess whether they can be as accurate musculotendon and/or muscle fiber A muscle-actuated forward dynamics simulation generated quantify each measures. Total (i.e. time integral absolute power over a full gait cycle) found underestimate total due agonist–antagonist co-contractions, despite effect biarticular passive work, which acted decrease underestimation. We did find that when net cycle negligible, power) comparable (and because tendon zero complete cycle). Thus, during conditions may estimate Neither external nor (nor their sum) provided reasonable conclude limited its ability should not estimation