Increasing the step length and decreasing the step frequency at a given speed of walking requires a greater power to lift and accelerate the centre of mass of the body (Ẇ(ext)), whereas decreasing the step length and increasing the step frequency requires a greater power to accelerate the limbs relative to the centre of mass (Ẇ(int)). The sum Ẇ(tot) = Ẇ(ext) + Ẇ(int) reaches a minimum at a step frequency which is 20%-30% less than that freely chosen during walking at that speed. The step frequency at which Ẇ(tot) is minimum increases with speed similarly to the natural step frequency during normal walking.
|Titolo:||Step frequency in walking|
CAVAGNA, GIOVANNI (Primo)
|Settore Scientifico Disciplinare:||Settore BIO/09 - Fisiologia|
|Data di pubblicazione:||1982|
|Appare nelle tipologie:||01 - Articolo su periodico|