Results 211 to 220 of about 56,032 (262)
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Sports Medicine, 1989
Isokinetic contraction is the muscular contraction that accompanies constant velocity limb movements around a joint. The velocity of movement is maintained constant by a special dynamometer. The resistance of the dynamometer is equal to the muscular forces applied throughout the range of movement.
V, Baltzopoulos, D A, Brodie
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Isokinetic contraction is the muscular contraction that accompanies constant velocity limb movements around a joint. The velocity of movement is maintained constant by a special dynamometer. The resistance of the dynamometer is equal to the muscular forces applied throughout the range of movement.
V, Baltzopoulos, D A, Brodie
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Isokinetic Muscle Function in COPD
Chest, 2002Exercise limitation in patients with COPD has been attributed to impaired ventilation and reduced skeletal muscle function. We have previously used a combination of FEV(1) and leg muscle function (work achieved during a 30-s isokinetic sprint test) to predict progressive exercise capacity.
Charles, Haccoun +4 more
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Determination of the Isokinetic Temperature
Nature, 1970THE linear relation (1) between the activation enthalpies ΔH‡ and activation entropies ΔS‡ in a series of related reactions is called the isokinetic relationship and is—if valid for a certain series—of fundamental importance in reaction kinetics and in reactivity studies1–4.
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Errors in the use of isokinetic dynamometers
European Journal of Applied Physiology and Occupational Physiology, 1981The use of constant velocity dynamometers in functional testing and in exercise and therapy programs has been increasing in the past few years. For movements in the horizontal plane there are no gravitational errors. However, in vertical movements the limbs are not only working against the dynamometer but also are either aided or opposed by gravity ...
D A, Winter, R P, Wells, G W, Orr
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Isokinetic Evaluation of Trunk Muscles
Spine, 1984The purpose of this study is to identify those individuals at risk who have weak trunk muscles and are prone to back pain. The overall thrust of this research is to develop a quantitative method to assess dynamic strength of the trunk muscles. Two unique isokinetic strength testing units in sitting and standing postures have been designed. Three groups
N A, Langrana, C K, Lee
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Isokinetic Back Testing in the Athlete
Clinics in Sports Medicine, 1993With increasing numbers of professional, collegiate, and high school athletes developing low back pain, isokinetic back testing could prove to be a way of preventing the development of severe problems and extended stays on injured lists. Isokinetic testing provides an advantage over other testing procedures by more closely simulating the way muscles ...
P D, Flory +2 more
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Isokinetic strength in weight-trainers
European Journal of Applied Physiology and Occupational Physiology, 1984Isokinetic strength of ankle plantarflexion (APF), knee extension (KE) and elbow extension (EE) was measured in male weight-trainers (6 power-lifters and 7 bodybuilders) and 25 untrained men of similar age and height. The weight-trainers exceeded control subjects by 21%, 25% and 73% in APF, KE and EE strength respectively.
D G, Sale, J D, MacDougall
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Effect of Damp on Isokinetic Measurements
Physical Therapy, 1983Meaningful use of isokinetic data requires understanding potential sources of variation and error. The purpose of this study was to examine one possible source of variation: the effect of recorder damp settings on Cybex II torque tracings. The effect of damp settings 0 through 4 at speeds of 30 degrees/sec and 75 degrees/sec was assessed by dropping ...
D R, Sinacore +3 more
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Isokinetics and Exercise Science, 1996
A review is given of the possible sources of error to be found when using isokinetic measurement systems. These errors are associated with the subject on whom the measurements are being taken, the person conducting the measurement i.e. the therapist, and the machine itself. Examples of each are given as drawn from the authors own work.
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A review is given of the possible sources of error to be found when using isokinetic measurement systems. These errors are associated with the subject on whom the measurements are being taken, the person conducting the measurement i.e. the therapist, and the machine itself. Examples of each are given as drawn from the authors own work.
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Isokinetic Measurement in Preadolescent Males
International Journal of Sports Medicine, 1986Eighteen preadolescent males (mean age 11.4 +/- 0.59 years) performed 15 knee flexion-extension repetitions on both legs. Peak torque (T peak) and torque acceleration energy (TAE) were measured using the Cybex II Isokinetic system, which permitted a study of the effect of limb velocity on T peak, TAE, and reciprocal muscle group ratios.
J, Burnie, D A, Brodie
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