期刊
JOURNAL OF NEUROLOGIC PHYSICAL THERAPY
卷 37, 期 4, 页码 159-165出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/NPT.0000000000000020
关键词
gait; locomotor training; stroke
资金
- National Institute of Nursing Research [R01NR010786]
- National Institute of Health Shared Instrumentation [S10RR022396]
- National Institute of Child Health and Human Development [K01HD050582]
Background and Purpose: In rehabilitation, examining how variables change over time can help define the minimal number of training sessions required to produce a desired change. The purpose of this study was to identify the time course of changes in gait biomechanics and walking function in persons with chronic stroke. Methods: Thirteen persons who were more than 6 months post-stroke participated in 12 weeks of fast treadmill training combined with plantar-and dorsiflexor muscle functional electrical stimulation (FastFES). All participants completed testing before the start of intervention, after 4, 8, and 12 weeks of FastFES locomotor training. Results: Peak limb paretic propulsion, paretic limb propulsive integral, peak paretic limb knee flexion (P < 0.05 for all), and peak paretic trailing limb angle (P < 0.01) improved from pretraining to 4 weeks but not between 4 and 12 weeks. Self-selected walking speed and 6-minute walk test distance improved from pretraining to 4 weeks and from 4 to 12 weeks (P < 0.01 and P < 0.05, respectively for both). Timed Up & Go test time did not improve between pretraining and 4 weeks, but improved by 12 weeks (P = 0.24 and P < 0.01, respectively). Discussion and Conclusions: The results demonstrate that walking function improves with a different time course compared with gait biomechanics in response to a locomotor training intervention in persons with chronic stroke. Thirty-six training sessions were necessary to achieve an increase in walking speed that exceeded the minimally clinically important difference. These findings should be considered when designing locomotor training interventions after stroke. Video Abstract available (see Video, Supplemental Digital Content 1, http://links.lww.com/JNPT/A63) for more insights from the authors.
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