The purpose of this study was to compare the acute effects of static stretching; dynamic exercises and high volume upper extremity plyometric activity on tennis serve performance. Twenty-six elite young tennis players (15.1 ± 4.2 years, 167.9 ± 5.8 cm and 61.6 ± 8.1 kg) performed 4 different warm-up (WU) routines in a random order on non-consecutive days. The WU methods consisted of traditional...

PURPOSE The present study addressed the lack of data on the effect of different types of stretching on diurnal variations in vertical jump height - i.e., squat-jump (SJ) and countermovement-jump (CMJ). We hypothesized that dynamic stretching could affect the diurnal variations of jump height by producing a greater increase in short-term maximal performance in the morning than the evening throug...

OBJECTIVE To determine if there is any benefit to static stretching after performing a dynamic warm-up in the prevention of injury in high school soccer athletes. DESIGN Prospective cluster randomized nonblinded study. SETTING 12 high schools with varsity and junior varsity boys' soccer teams (24 soccer teams) across the state of Michigan. PARTICIPANTS Four hundred ninety-nine student-ath...

Trunk flexibility may be associated with arterial stiffness in young, middle-aged, and older healthy men after adjusting for blood pressure. This study assessed the effects of 4 weeks of regular static stretching on arterial stiffness in middle-aged men. Sixteen healthy men (43 ± 3 years) were assigned to control or intervention groups (n = 8 each). The control group did not alter their physica...

This study represents a comparison of the functional interrelation fatigue and cognitive, cardiovascular autonomic nervous systems in group Chronic Fatigue Syndrome (CFS) patients compared with those healthy individuals at different stages analysis: baseline after changes induced by whole-body cryotherapy (WBC) combined static-stretching (SS) program. The included 32 (Fukuda criteria) 18 contro...

OBJECTIVES To evaluate if a stretch regimen consisting of three 30 second stretches would alter joint position sense (JPS). METHODS A blinded, randomised, cross over design with a washout time of 24 hours was used with 20 healthy volunteers. JPS was estimated from the ability to reproduce the same position in one knee (target versus estimated angle) expressed as the difference between target ...

[Purpose] The purpose of this study was to investigate the effects of the menstrual cycle on the static balance of healthy young women. [Subjects and Methods] Eighteen healthy young subjects (mean age 19.1 years; weight 57.5 kg; height 159.9 cm) participated in this study. The Good Balance system was used to measure the postural sway speed and velocity moment of subjects in the static standing ...

CONTEXT Recent studies have shown that the static stretch (SS) may adversely affect leg-muscle performance. OBJECTIVES The authors examined the short-term effects of 2 stretching exercises on hamstrings muscle before and after exercise. DESIGN Crossover. SETTING Laboratory. PARTICIPANTS 9 healthy, physically active men. INTERVENTIONS There were 3 protocols in a randomized order with a...