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The energy cost of level walking (Cw) was measured from the ratio of O2 consumption to speed (from 0.1 to 1.2 m.s-1) in hemiplegic patients (n = 20) and in a control group of healthy subjects (n = 17). Average age and body mass were 58, 54 years and 73, 78 kg, respectively. In hemiplegic patients Cw was higher than in control subjects (average value at 1.0 m.s-1 = 3.6 and 3.3 J.m-1.kg-1, respectively) and this difference increased at lower speeds (from 5.1% at 1.2 m.s-1 to 28.7% at 0.1 m.s-1).
Zamparo et al. (Fri,) studied this question.
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