BACKGROUND This study investigated the relationship between dental occlusion and arm strength; in particular, the imbalance in the jaw can cause loss in arm strength phenomenon. One of the goals of this study was to record the maximum forces that the subjects can resist against the pull-down force on their hands while biting a spacer of adjustable height on the right or left side of the jaw. Th...

This study analyzed the effect of caffeine ingestion on performance during a repeated-measures, 100-km, laboratory cycling time trial that included bouts of 1- and 4-km high intensity epochs (HIE). Eight highly trained cyclists participated in 3 separate trials' placebo ingestion before exercise with a placebo carbohydrate solution and placebo tablets during exercise (Pl), or placebo ingestion ...

Leisure and muscular performance in health and disease. A study of 40-64 year old northern Swedes. In Swedish, based upon f iv e reports in the English language. Björn Gerdle, Department o f Physical Medicine and R e h a b i l i ta t io n , Uni ver­ si ty of Umeå, S-901 85 Umeå, Sweden. Categories and frequencies of le isu re a c t i v i t i e s employed by 156 randomly selected males and femal...

The current study compared EMG, stroke force and 2D kinematics during on-ergometer and on-water kayaking. Male elite flatwater kayakers (n = 10) performed matched exercise protocols consisting of 3 min bouts at heart and stroke rates equivalent to 85% of VO2peak (assessed by prior graded incremental test). EMG data were recorded from Anterior Deltoid (AD), Triceps Brachii (TB), Latissimus Dorsi...

ObjectiveTo investigate effect of flow speeds on the upper limb muscular activity butterfly swimmers training in a environment. A comparison kinematic characteristics and limbs were made when with different swimming flume. The purpose was to provide basis for scientifically formulating special advice athletes' environment.MethodsTen youth female participated study speed 70%, 80%, 90% level thei...

The aim of this study was to evaluate the acute effects of unilateral ankle plantar flexors static-stretching (SS) on the passive range of movement (ROM) of the stretched limb, surface electromyography (sEMG) and single-leg bounce drop jump (SBDJ) performance measures of the ipsilateral stretched and contralateral non-stretched lower limbs. Seventeen young men (24 ± 5 years) performed SBDJ befo...