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. 2017 Feb 9;8:70. doi: 10.3389/fphys.2017.00070

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Copyright © 2017 Hessel, Lindstedt and Nishikawa.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Twenty-one frail subjects (mean age 80.2) were enrolled in an 11-week cardiopulmonary rehabilitation program. Control subjects (10) used traditional resistance training with weights (Trad, circles) while the others (11) used an eccentric ergometer (ECC triangles). The Trad group had an insignificant increase in isometric strength (15%, p = 0.12) but a 1.7 s improvement in their timed up and go performance (p = 0.03). In contrast, the ECC subjects had a 60% increase in strength (p = 0.001) and performance on the timed up and go test improved by 4.7 s (p = 0.001); all but one subject changed from high to low fall risk. Reproduced with permission from LaStayo et al. (2003a).