Influence of upper extremity assistance on lower extremity force application symmetry in individuals post-hip fracture during the sit-to-stand task

The Journal of Orthopaedic and Sports Physical Therapy
Janet KneissJ Edward Puzas

Abstract

Controlled laboratory study using a cross-sectional design. To compare lower extremity force applications during a sit-to-stand (STS) task with and without upper extremity assistance in older individuals post-hip fracture to those of age-matched controls. A recent study documented the dependence on upper extremity assistance and the uninvolved lower limb during an STS task in individuals post-hip fracture. This study extends this work by examining the effect of upper extremity assistance on symmetry of lower extremity force applications. Twenty-eight community-dwelling elderly subjects, 14 who had recovered from a hip fracture and 14 controls, participated in the study. All participants were independent ambulators. Four force plates were used to determine lower extremity force applications during an STS task with and without upper extremity assistance. The summed vertical ground reaction forces (vGRFs) of both limbs were used to determine STS phases (preparation/rising). The lower extremity force applications were assessed statistically using analysis of variance models. During the preparation phase, side-to-side symmetry of the rate of force development was significantly lower for the hip fracture group for both STS tasks (P<....Continue Reading

Associated Clinical Trials

References

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Citations

Jul 31, 2013·The Journal of Orthopaedic and Sports Physical Therapy·Joseph ZeniLynn Snyder-Mackler
Jun 7, 2013·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Alicia Martínez-RamírezPeter H Veltink
Jul 17, 2015·Geriatrics & Gerontology International·Anu SalpakoskiSarianna Sipilä
Dec 17, 2014·Clinical Biomechanics·Janet A KneissJeff R Houck
Mar 3, 2017·Journal of Geriatric Physical Therapy·Robert A BriggsRobin L Marcus
May 9, 2018·Journal of Geriatric Physical Therapy·Cynthia ZablotnyJeff Houck

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