Fig. 5.
Unaffected/affected (N/P) step ratio of external muscular work (Wext) and recovery of muscle work (R) in above-knee amputees (AK), below-knee amputees (BK) and KRP patients, from left to right, respectively. In healthy individuals, the ratio is 1 with minimal variation across controls (horizontal continuous line, Tesio et al., 1985). Amputees’ data are reproduced from a previous work (Tesio et al., 1998b), with permission. Ratios were 0.9, 1.3 and 1.4 in patients A (triangle), B (square) and C (circle), respectively (see Table 1 for details).