OBJECTIVE To examine the effects of precooling skin and core temperature on a 70 second cycling power test performed in a warm and humid environment (29 degrees C, 80% relative humidity). METHODS Thirteen male national and international level representative cyclists (mean (SD) age 24.1 (4.1) years; height 181.5 (6.2) cm; weight 75.5 (6.4) kg; maximal oxygen uptake (VO2peak) 66.1 (7.0) ml/kg/m...

OBJECTIVE To determine the effectiveness of coach-led neuromuscular warm-up on reducing lower extremity (LE) injuries in female athletes in a mixed-ethnicity, predominantly low-income, urban population. DESIGN Cluster randomized controlled trial. SETTING Chicago public high schools. PARTICIPANTS Of 258 coaches invited to participate, 95 (36.8%) enrolled (1558 athletes). Ninety coaches and...

Objective—To examine the eVects of precooling skin and core temperature on a 70 second cycling power test performed in a warm and humid environment (29°C, 80% relative humidity). Methods—Thirteen male national and international level representative cyclists (mean (SD) age 24.1 (4.1) years; height 181.5 (6.2) cm; weight 75.5 (6.4) kg; maximal oxygen uptake (V~O2peak) 66.1 (7.0) ml/kg/min) were t...

Have come and gone Quintessential Remnants of summer Rambutans and durians Discarded peels Bustles with activity Lives of other kinds Wriggling and swimming Summer dreams Of warm humid nights Fanning away the creatures of nature That annoying bustle of wings Of lives that emerged from the discards Creatures of nature That fly in search of meals Meals of red Within the meal Enveloped In a protec...

PURPOSE This study was designed to examine the effects of moderate-intensity endurance exercise on cycling performance, gross efficiency, and 30-s sprint power output. METHODS Two separate experiments were conducted. After a controlled warm-up, subjects completed as much work as possible in a 5-min performance test (EXP1) or a maximal 30-s sprint test (EXP2). These initial exercise bouts were...

On a warm, dark evening in early October, I had the privilege of finding myself in Pretoria, South Africa with a group of nurse colleagues from many southern African nations, listening as various leaders brought messages of greetings before we were to share dinner. The minister of health had fallen ill that day and was replaced at the last minute by her director general. The minister’s illness ...

Considering the importance of the vertical jump in several sports, an optimal warm-up protocol may help athletes perform at their maximum level. The purpose of this study was to investigate the potentiating effects of different levels of external resistance (weighted vest) during box jumps on vertical jump performance. Twenty resistance trained men (age 22.45 +/- 1.73 years, height 176.83 +/- 6...

The purpose of this study was to determine the short-term stabilometric effects of proprioceptive training in athletes by using a BOSU ball and a Swiss ball as unstable platforms. Thirty-seven athletes from a variety of disciplines were divided into a control group (n = 17) and an experimental group (n = 20). Both performed a warm-up, and in addition, the experimental group carried out a propri...

background: the aim of this study was to investigate the effects of high-intensity interval training (hiit) on nitric oxide metabolites (no2 - , no3 - ) and myocardial infarct size after ischemia/reperfusion (i/r) injury in healthy male rats. methods: a total of 44 wistar rats were randomly divided into 4 groups including hiit (n=8), hiit + ir protocol (n=14), control (n=8), and control + ir (n...

Remote ischemic preconditioning (IP) is a potential renoprotective strategy. However, there has been no demonstrated result in large animals and the role of time window in remote IP remains to be defined. Using a single-kidney porcine model, we evaluated organ protective function of remote IP in renal ischemia reperfusion injury. Fifteen Yorkshire pigs, 20 weeks old and weighing 35-38 kg were u...