Acute effects of a single bout of resistance exercise on postural control in elderly persons.

Authors:
Dr. Justin B Moore, PhD, MS
Dr. Justin B Moore, PhD, MS
Wake Forest School of Medicine
Associate Professor
Implementation Science, Epidemiology
Winston-Salem, NC | United States
Thomas Korff
Thomas Korff
University of Heidelberg
Germany
Stephen J Kinzey
Stephen J Kinzey
University of Virginia
United States

Percept Mot Skills 2005 Jun;100(3 Pt 1):725-33

University of Louisville, Department of Health and Sport Sciences, Louisville, KY 40292, USA.

Many elderly persons are engaging in resistance exercise to counter muscle atrophy due to aging. Here, the acute effects of resistance exercise on postural control mechanisms were examined. Postural control was quantified by mean square center-of-pressure displacements were calculated utilizing force vectors in accordance with previously developed equations. Stabilogram-diffusion plots utilized the displacements as data points after curve-fitting techniques were applied. Two regions, representing the open-loop and closed-loop postural control mechanisms, are shown by the plots and separated at the critical point, which represents the shift in control mechanisms. 21 older adults (age M=71.2, SD=3.84, range 66-81 years) performed three sets of 10-12 repetitions for six resistance exercises for the lower extremity until fatigue. Immediately after exercise, postural stability was reduced. This was represented by a shift of the critical point to the right, indicating an increase in open-loop control. Since resistance training has an acute negative effect on postural control, it is advised to assist elderly clients carefully and immediately after resistance training.

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http://dx.doi.org/10.2466/pms.100.3.725-733DOI Listing

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June 2005
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5 Citations

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References

(Supplied by CrossRef)
Article in Aging (Milano)
Buchner D. et al.
Aging (Milano) 1997
Article in Electromyography and Clinical Neurophysiology
Hakkinen K. et al.
Electromyography and Clinical Neurophysiology 1995

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