Isokinetic characteristics of knee flexors and extensors in male dancers, olympic oarsmen, olympic bobsleighers, and non-athletes

2.50
Hdl Handle:
http://hdl.handle.net/2436/106632
Title:
Isokinetic characteristics of knee flexors and extensors in male dancers, olympic oarsmen, olympic bobsleighers, and non-athletes
Authors:
Koutedakis, Yiannis; Agrawal, Arvind; Sharp, N. C. Craig
Abstract:
Quadriceps (PTQUAD) and hamstring (PTHAM) concentric peak torques — measured in Nm and Nm·kg-1 body weight — and hamstring/quadriceps peak torque ratios (PTHAM/QUAD) were studied in males engaged in different physical activities and having different levels of physical fitness. Both dominant and non-dominant legs of 20 professional dancers, 14 Olympic oarsmen, 11 Olympic bobsleighers, and 10 non-athletes were isokinetically assessed at 1.04, 3.14, and 4.19 rad·sec-1. The main findings were: 1. torque levels decreased with increasing angular velocity in all four groups of subjects; 2. with few exceptions, dancers and non-athletes demonstrated significantly lower PTQUAD and PTHAM (p < 0.01 to p < 0.005) at the three velocities than bobsleighers and rowers; 3. most of the differences between groups described above, disappeared (p > 0.05) when PTQUAD and PTHAM were standardized for body weight (Nm·kg-1); and 4. although PTHAM/QUAD for dancers and non-athletes were significantly lower than that of the two sports groups at 1.04 and 3.14 rad·sec-1, no such differences were noted at the relatively higher velocity of 4.19 rad·sec-1. We conclude that dissimilar physical training, modes of exercise, and/or different fitness levels have the same effect on muscle contractile characteristics.
Citation:
Journal of Dance Medicine & Science, 2(2) : 63-7
Publisher:
J. Michael Ryan
Journal:
Journal of Dance Medicine & Science
Issue Date:
1998
URI:
http://hdl.handle.net/2436/106632
Additional Links:
http://www.iadms.org/displaycommon.cfm?an=1&subarticlenbr=47
Type:
Article
Language:
en
ISSN:
1089-313x
Appears in Collections:
Dance Science

Full metadata record

DC FieldValue Language
dc.contributor.authorKoutedakis, Yiannisen
dc.contributor.authorAgrawal, Arvinden
dc.contributor.authorSharp, N. C. Craigen
dc.date.accessioned2010-06-22T11:52:26Z-
dc.date.available2010-06-22T11:52:26Z-
dc.date.issued1998-
dc.identifier.citationJournal of Dance Medicine & Science, 2(2) : 63-7en
dc.identifier.issn1089-313x-
dc.identifier.urihttp://hdl.handle.net/2436/106632-
dc.description.abstractQuadriceps (PTQUAD) and hamstring (PTHAM) concentric peak torques — measured in Nm and Nm·kg-1 body weight — and hamstring/quadriceps peak torque ratios (PTHAM/QUAD) were studied in males engaged in different physical activities and having different levels of physical fitness. Both dominant and non-dominant legs of 20 professional dancers, 14 Olympic oarsmen, 11 Olympic bobsleighers, and 10 non-athletes were isokinetically assessed at 1.04, 3.14, and 4.19 rad·sec-1. The main findings were: 1. torque levels decreased with increasing angular velocity in all four groups of subjects; 2. with few exceptions, dancers and non-athletes demonstrated significantly lower PTQUAD and PTHAM (p < 0.01 to p < 0.005) at the three velocities than bobsleighers and rowers; 3. most of the differences between groups described above, disappeared (p > 0.05) when PTQUAD and PTHAM were standardized for body weight (Nm·kg-1); and 4. although PTHAM/QUAD for dancers and non-athletes were significantly lower than that of the two sports groups at 1.04 and 3.14 rad·sec-1, no such differences were noted at the relatively higher velocity of 4.19 rad·sec-1. We conclude that dissimilar physical training, modes of exercise, and/or different fitness levels have the same effect on muscle contractile characteristics.en
dc.language.isoenen
dc.publisherJ. Michael Ryanen
dc.relation.urlhttp://www.iadms.org/displaycommon.cfm?an=1&subarticlenbr=47en
dc.subjectQuadricepsen
dc.subjectHamstringen
dc.subjectPeak torqueen
dc.subjectDancersen
dc.subjectMaleen
dc.subjectOarsmenen
dc.subjectBobsleighersen
dc.titleIsokinetic characteristics of knee flexors and extensors in male dancers, olympic oarsmen, olympic bobsleighers, and non-athletesen
dc.typeArticleen
dc.identifier.journalJournal of Dance Medicine & Scienceen
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