@article{BeijersbergenGranacherGaebleretal.2017,
  author    = {Beijersbergen, Chantal M. I. and Granacher, Urs and Gaebler, Martijn and DeVita, Paul and Hortobagyi, Tibor},
  title     = {Hip mechanics underlie lower extremity power training-induced increase in old adults' fast gait velocity},
  series = {Gait \& posture},
  volume    = {52},
  journal   = {Gait \& posture},
  publisher = {Elsevier},
  address   = {Clare},
  issn      = {0966-6362},
  doi       = {10.1016/j.gaitpost.2016.12.024},
  pages     = {338 -- 344},
  year      = {2017},
  abstract  = {Methods: As part of the Potsdam Gait Study (POGS), healthy old adults completed a no-intervention control period (69.1 +/- 4A yrs, n =14) or a power training program followed by detraining (72.9 +/- 5.4 yrs, n = 15).We measured isokinetic knee extensor and plantarflexor power and measured hip, knee and ankle kinetics at habitual, fast and standardized walking speeds. Results: Power training significantly increased isokinetic knee extensor power (25\%), plantarflexor power (43\%), and fast gait velocity (5.9\%). Gait mechanics underlying the improved fast gait velocity included increases in hip angular impulse (29\%) and H1 work (37\%) and no changes in positive knee (K2) and A2 work. Detraining further improved fast gait velocity (4.7\%) with reductions in H1(-35\%), and increases in K2 (36\%) and A2 (7\%). Conclusion: Power training increased fast gait velocity in healthy old adults by increasing the reliance on hip muscle function and thus further strengthened the age-related distal-to-proximal shift in muscle function. (C) 2016 Elsevier B.V. All rights reserved.},
  language  = {en}
}