Isokinetic Strength Ratios: Conventional Methods, Current Limits and Perspectives
نویسندگان
چکیده
منابع مشابه
Rapid hamstrings/quadriceps strength capacity in professional soccer players with different conventional isokinetic muscle strength ratios.
Muscle strength imbalance can be an important factor in hamstrings muscle strain. A hamstrings/quadriceps (H/Q) strength ratio based on concentric peak torque values (Hcon:Qcon) has traditionally been used to describe the potential for knee-joint destabilization. Because certain standard actions in soccer are explosive, the analysis of the H/Q strength ratio based on the rate of torque developm...
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CONTEXT Elbow injuries are widely reported among baseball players. The elbow is susceptible to injury when elbow-flexor and -extensor forces are imbalanced during pitching or throwing. Assessment of muscle-strength ratios may prove useful for diagnosing elbow injury. OBJECTIVE The purpose of this study was to assess the relationship between the elbow-flexor and -extensor functional isokinetic...
متن کاملCaffeine ingestion and isokinetic strength.
The purpose of this study was to investigate the effects of caffeine on maximum voluntary contractions of the dominant knee extension and flexion muscles in 12 male intercollegiate track sprinters. Caffeine (5 mg.kg-1) and placebo (225 mg methylcellulose) gelatin capsules were administered orally in randomly assigned order. Muscle function was measured isokinetically by a Cybex II dynamometer i...
متن کاملComparison of hamstring/quadriceps isokinetic strength ratios and power in tennis, squash and track athletes.
Isokinetic assessment of elite squash, tennis and track athletes confirms the accepted ratio of 60 to 80 per cent hamstring to quadriceps when testing at 90 deg-sec-1 for peak strength (torque). However, significant variations occur at higher test speeds up to 300 deg.sec-1 with the hamstrings becoming more prominent especially (p less than 0.001) in the nonpreferred (NP) leg. There was no sign...
متن کاملUse of Isokinetic Strength Ratios to Discriminate between Maximal and Feigned Shoulder Extension Musculature Efforts
INTRODUCTION Occupational injuries of the shoulder joint are of growing concern due to work time loss, as well as increases in medical and restitution expenses [1]. The assessment of shoulder musculature strength may assist in decision making regarding the effects of interventions, as well as possible readiness to return to work. Current practices related to the use of strength scores for such ...
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ژورنال
عنوان ژورنال: Frontiers in Physiology
سال: 2019
ISSN: 1664-042X
DOI: 10.3389/fphys.2019.00567