For people 65 years old and older falls are the number one cause of death from an injury, according to the Centers for Disease Control and Prevention (CDC).
http://nnr.sagepub.com/content/30/5/440?etoc
- T. George Hornby, PhD1,2,3⇑
- Carey L. Holleran, DHS2
- Patrick W. Hennessy, MPT2
- Abigail L. Leddy, DPT2
- Mark Connolly2
- Jaclyn Camardo2
- Jane Woodward, DPT2
- Gordhan Mahtani, MS2
- Linda Lovell2
- Elliot J. Roth, MD2,3
- 1University of Illinois at Chicago, Chicago, IL, USA
- 2Rehabilitation Institute of Chicago, Chicago, IL, USA
- 3Northwestern University, Chicago, IL, USA
- T. George Hornby, PhD, Department of Physical Therapy, University of Illinois, 1919 W Taylor, Chicago, IL 60611, USA. Email: tgh@uic.edu
Abstract
Background. Converging evidence
suggests that the amount of stepping practice is an important training
parameter that influences locomotor
recovery poststroke. More recent data suggest that
stepping intensity and variability are also important, although such
strategies
are often discouraged early poststroke.
Objective. The present study examined the efficacy of high-intensity, variable stepping training on walking and nonwalking outcomes
in individuals 1 to 6 months poststroke as compared with conventional interventions.
Methods.
Individuals with unilateral stroke (mean duration = 101 days) were
randomized to receive ≤40, 1-hour experimental or control
training sessions over 10 weeks. Experimental
interventions consisted only of stepping practice at high cardiovascular
intensity
(70%-80% heart rate reserve) in variable contexts
(tasks or environments). Control interventions were determined by
clinical
physical therapists and supplemented using
standardized conventional strategies. Blinded assessments were obtained
at baseline,
midtraining, and posttraining with a 2-month
follow-up.
Results. A total of 32 individuals (15 experimental)
received different training paradigms that varied in the amount,
intensity,
and types of tasks performed. Primary outcomes of
walking speed (experimental, 0.27 ± 0.22 m/s vs control, 0.09 ± 0.09
m/s)
and distances (119 ± 113 m vs 30 ± 32 m) were
different between groups, with stepping amount and intensity related to
these
differences. Gains in temporal gait symmetry and
self-reported participation scores were greater following experimental
training,
without differences in balance or sit-to-stand
performance.
Conclusion. Variable intensive stepping training resulted in greater improvements in walking ability than conventional interventions
early poststroke. Future studies should evaluate the relative contributions of these training parameters.
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