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PURPOSE The purpose of this study was to investigate the effects of a progressive 10-wk aquatic resistance training on neuromuscular performance and muscle mass of the knee extensors and flexors in healthy women. METHODS Twenty-four healthy women (34.2 +/- 3.9 yr) were randomly assigned into aquatic exercise (N = 12) and control group (N = 12). Maximum(More)
BACKGROUND Knee joint arthritis causes pain, decreased range of motion, and mobility limitation. Knee replacement reduces pain effectively. However, people with knee replacement have decreases in muscle strength ("force-generating capacity") of the involved leg and difficulties with walking and other physical activities. OBJECTIVE AND DESIGN The aim of(More)
This study was designed to determine trial-to-trial and day-to-day reproducibility of isometric force and electromyogram activity (EMG) of the knee extensor muscles in water and on dry land as well as to make comparisons between the two training conditions in muscle activity and force production. A group of 20 healthy subjects (12 women and 8 men) were(More)
INTRODUCTION Electromyograms (EMGs) recorded during head-out immersion have demonstrated reduced signal amplitudes and decreased EMG/force ratios for both maximal and submaximal isometric contractions compared with measurements on dry land. Similar EMG changes have been found in spaceflight. HYPOTHESIS This study was designed to examine neuromuscular(More)
OBJECTIVE This study aimed to evaluate muscle function and kinematics during commonly used knee rehabilitation exercises performed in water. DESIGN Maximal effort single extension and flexion trials in still water and repeated extension-flexion trials in flowing water in barefoot condition were analysed from 18 healthy participants (8 men, 10 women). (More)
OBJECTIVE To study the effects of aquatic resistance training on mobility, muscle power, and cross-sectional area. DESIGN Randomized controlled trial. SETTING Research laboratory and hospital rehabilitation pool. PARTICIPANTS Population-based sample (N=50) of eligible women and men 55 to 75 years old 4 to 18 months after unilateral knee replacement(More)
OBJECTIVES To compare muscle activity and resistive drag force during knee extension-flexion exercises while barefoot and while wearing a Hydro Boot (increased frontal area) both under water and on dry land. DESIGN Participants performed the exercises while seated on an elevator chair under water. SETTING A hydrotherapy pool. PARTICIPANTS Eighteen(More)
BACKGROUND Muscular disorders of the neck region may be of importance for the etiology of tension-type headache. However, in adolescents, there are no data on the association between neck muscle fatigue and headache. AIM To study differences in fatigue characteristics of the neck flexor muscles in adolescents with and without headache. METHODS A(More)
OBJECTIVE The purpose of this laboratory experiment was to measure hydrodynamic drag forces in barefoot/hydro-boot conditions and accordingly, to determine the coefficients of drag on human leg/foot model during simulated knee extension-flexion exercise. DESIGN The prosthesis of the human lower leg was set in a water tank and connected into an isokinetic(More)
OBJECTIVE To evaluate the maintenance of observed aquatic training-induced benefits at 12-month follow-up. DESIGN Twelve-month follow-up of a randomized controlled study. SETTING Research laboratory and hospital rehabilitation pool. PARTICIPANTS Population-based sample of 55 to 75-year-old women and men 4 to 18 months (on average 10mo) after(More)