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. Author manuscript; available in PMC: 2013 Dec 30.
Published in final edited form as: Muscle Nerve. 2012 Feb;45(2):10.1002/mus.22321. doi: 10.1002/mus.22321

FIGURE 4.

FIGURE 4

Kilograms of force predict distance walked in 6MWT. Means and standard deviations of force generation by MVICT in kilograms of bilateral quadriceps muscles grouped by the number of complete laps (one lap = 50 meters) walked in 6 minutes. Red bars indicate a walking speed sufficient to safely cross a crosswalk. Green bar indicates typical community walking speed in the elderly (>1.3 meters/second). Variability reflects compensatory patterns used to complete functional tasks at every level of muscle strength.