OBJECTIVES To investigate shoulder rotator strength and steadiness in athletes with anterior instability and superior labrum anterior posterior (SLAP) lesion. DESIGN Cross-sectional laboratory study. METHODS Athletes with anterior shoulder instability (instability group, n=10) and a SLAP lesion (SLAP group, n=10) were compared with healthy athletes matched by age, anthropometrics and sport ...

The purpose of this study was to compare the influence of prolonged vibration of a hand muscle on the amplitude of the stretch reflex, motor unit discharge rate, and force fluctuations during steady, submaximal contractions. Thirty-two young adults performed 10 isometric contractions at a constant force (5.0 +/- 2.3% of maximal force) with the first dorsal interosseus muscle. Each contraction w...

A hand grip dynograph and weighing machine have been developed by applying the relationship 'force/area = pressure'. Force is applied to a relatively constant area provided by the partially inflated bladder taken from the compression cuff of a sphygmomanometer. Under such circumstances, the rise in pressure is proportional to the force applied, and after calibration, the pressure reading can be...

Abstract An isometric operator V in a Pontryagin space $${{{\mathfrak {H}}}}$$ H is called standard, if its domain and the range are nondegenerate subspaces . A description of coresolvents for standard operators known basic underlying concepts that appear literature unitary colligations characteristic functions...

INTRODUCTION Osteoarthritis is a chronic joint disease; isometric exercise leads to the development of mechanical work and isokinetic exercise leads to better joint mobility. OBJECTIVES To compare the effectiveness of isometric versus isokinetic therapeutic exercises in patients with knee osteoarthritis. MATERIAL AND METHODS Quasiexperimental study in a population of 45 to 75 year old patie...

The purpose of this study was to investigate the effect of whey supplementation, as compared to the standard casein diet, on the recovery of muscle functional properties after a casting-induced immobilization period. After an initial (I0) evaluation of the contractile properties of the plantarflexors (isometric torque-frequency relationship, concentric power-velocity relationship and a fatigabi...