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 PTQUADand 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.
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Document Type: Research Article
School of Health Sciences at Wolverhampton, WV11DJ, United Kingdom, and the School of Sport Sciences, Thessaly University, Greece
Department of Anaesthetics, Kings College Hospital, London, United Kingdom
School of Physical Education and Sport, Brunell University College, Middlesex, United Kingdom
Publication date: 1998-06-01
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