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Running for Exercise Mitigates Age-Related Deterioration of Walking Economy

Figure 1

Mean (SE) gross metabolic power as a function of walking speed in older walkers (▴) and older runners (⧫) walkers (▴).

Lines represent least square regression for older walkers (y = 2.709x2–3.539x+4.523, r2 = 0.86) and older runners (y = 2.382x2–3.189x+4.233, r2 = 0.89). Symbols shown on vertical axis represent standing metabolic rate of both groups. Asterisks (*) indicate significant differences between older runners and walkers (p<0.05).

Figure 1

doi: https://doi.org/10.1371/journal.pone.0113471.g001