Fig. 3From: On the simple calculation of walking efficiency without kinematic information for its convenient useUpward (circles) and downward (squares) delta efficiency (Delta-E) was calculated from the inverse of the relationships of Pmech to MRvert across eight measured vertical speed (vvert). MRvert = 2.968·Pmech – 0.573 (r = 0.999) for upward Delta-E, and MRvert = 2.399·Pmech – 25.665 (r = 0.981) for downward Delta-E, respectively. Data are mean ± SDBack to article page