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Int J Sports Med 2010; 31(1): 22-25
DOI: 10.1055/s-0029-1239497
Training & Testing

© Georg Thieme Verlag KG Stuttgart · New York

Effects of Age and Rest Interval on Strength Recovery

M. Bottaro1 , C. Ernesto2 , R. Celes1 , P. T. V. Farinatti3 , 5 , L. E. Brown4 , R. J. Oliveira2
  • 1University of Brasília, College of Physical Education, Brasília, Brazil
  • 2Catholic University of Brasília, College of Physical Education, Brasília, Brazil
  • 3Rio de Janeiro State University, School of Physical Education, Rio de Janeiro, Brazil
  • 4California State University Fullerton, Department of Kinesiology, Fullerton, United States
  • 5Salgado de Oliveira University, Physical Activity Sciences Graduate Program, Rio de Janeiro, Brazil
Further Information

Publication History

accepted after revision August 11, 2009

Publication Date:
02 November 2009 (online)

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Abstract

The purpose of this study was to compare the effect of two different rest intervals between sets of isokinetic knee extension exercise on peak torque (PT), and Total Work (TW) between untrained younger and older men. Seventeen young men (24.22±2.58 yrs) and 20 older men (66.85±4.02 yrs) performed 3 sets of 10 unilateral isokinetic knee extension repetitions at 60°/s. The rest intervals between sets were 1 and 2 min. There was a significant decline in PT when 1 and 2 min rest intervals were used for young men, but not when a 2 min rest interval was applied for old men. There was also a significant decline in TW among the 3 sets when 1 and 2 min rest intervals were applied for young men, whereas the decline in TW in older men occurred only between the 2nd and 3rd sets. PT and TW in the 3rd set were significant greater following a 2 min rest interval than a 1 min rest in both young and older men. The present study indicated that non-resistance trained young men may require longer rest interval to recover full PT and TW when compared to older men.

Key words

muscle fatigue - aging - resistance exercise - isokinetic

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Correspondence

Dr. Martim Bottaro

University of Brasília College of Physical Education

SQSW 300 Bloco-H Apt-504

70673-036 Brasília

Brazil

Phone: 55-61-33414156

Fax: 55-61-33072085

Email: martim@unb.br