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Eccentric and concentric torques of knee and elbow extension in young and older men.
Can J Sport Sci. 1992 Mar; 17(1):3-7.CJ

Abstract

The purpose of this study was to compare the strength of knee extensors and elbow extensors in young and older men under conditions of eccentric loading and concentric contractions. Twelve men ages 23 to 32 years and 12 ages 60 to 75 years were tested at two angular velocities of movement, 90 and 180 degrees.s-1, on a KinCom isokinetic dynamometer. Compared to young men, older men had lower concentric peak torque values for elbow (31%) and knee (32%) extensors (p less than 0.05). The older group showed lower eccentric peak torques on all elbow comparisons (21% lower), and for knee extension at the slower velocity (20%). At the faster velocity, knee extension eccentric peak torque did not differ from that of younger men. Differences between the age groups were significantly less for the eccentric muscle action than for the concentric one. The observation of maintained eccentric strength in older men, particularly at fast velocity, warrants research in defining the mechanism.

Authors+Show Affiliations

Poulin MJ
Faculty of Kinesiology, University of Western Ontario, London.
Vandervoort AA
No affiliation info available
Paterson DH
No affiliation info available
Kramer JF
No affiliation info available
Cunningham DA
No affiliation info available

MeSH

AdultAgedAgingElbowHumansIsometric ContractionKneeMaleMiddle AgedMuscle ContractionMuscles

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

1322766

Citation

Poulin, M J., et al. "Eccentric and Concentric Torques of Knee and Elbow Extension in Young and Older Men." Canadian Journal of Sport Sciences = Journal Canadien Des Sciences Du Sport, vol. 17, no. 1, 1992, pp. 3-7.
Poulin MJ, Vandervoort AA, Paterson DH, et al. Eccentric and concentric torques of knee and elbow extension in young and older men. Can J Sport Sci. 1992;17(1):3-7.
Poulin, M. J., Vandervoort, A. A., Paterson, D. H., Kramer, J. F., & Cunningham, D. A. (1992). Eccentric and concentric torques of knee and elbow extension in young and older men. Canadian Journal of Sport Sciences = Journal Canadien Des Sciences Du Sport, 17(1), 3-7.
Poulin MJ, et al. Eccentric and Concentric Torques of Knee and Elbow Extension in Young and Older Men. Can J Sport Sci. 1992;17(1):3-7. PubMed PMID: 1322766.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Eccentric and concentric torques of knee and elbow extension in young and older men. AU - Poulin,M J, AU - Vandervoort,A A, AU - Paterson,D H, AU - Kramer,J F, AU - Cunningham,D A, PY - 1992/3/1/pubmed PY - 1992/3/1/medline PY - 1992/3/1/entrez SP - 3 EP - 7 JF - Canadian journal of sport sciences = Journal canadien des sciences du sport JO - Can J Sport Sci VL - 17 IS - 1 N2 - The purpose of this study was to compare the strength of knee extensors and elbow extensors in young and older men under conditions of eccentric loading and concentric contractions. Twelve men ages 23 to 32 years and 12 ages 60 to 75 years were tested at two angular velocities of movement, 90 and 180 degrees.s-1, on a KinCom isokinetic dynamometer. Compared to young men, older men had lower concentric peak torque values for elbow (31%) and knee (32%) extensors (p less than 0.05). The older group showed lower eccentric peak torques on all elbow comparisons (21% lower), and for knee extension at the slower velocity (20%). At the faster velocity, knee extension eccentric peak torque did not differ from that of younger men. Differences between the age groups were significantly less for the eccentric muscle action than for the concentric one. The observation of maintained eccentric strength in older men, particularly at fast velocity, warrants research in defining the mechanism. SN - 0833-1235 UR - https://www.unboundmedicine.com/medline/citation/1322766/Eccentric_and_concentric_torques_of_knee_and_elbow_extension_in_young_and_older_men_ L2 - https://medlineplus.gov/olderadulthealth.html DB - PRIME DP - Unbound Medicine ER -