Casey DP, Shepherd JR, Joyner MJ. Sex and vasodilator responses to hypoxia at rest and during exercise. J Appl Physiol 116: 927–936, 2014. First published July 3, 2013; doi:10.1152/japplphysiol.00409.2013.—In humans, -adrenergic receptor activation causes a substantial portion of hypoxic vasodilation in skeletal muscle at rest and during forearm exercise. Recent evidence suggests that -adrenerg...

Background. Despite the increasing popularity of the snowboard, there is not scientific literature for sport performance indicators in this sport. Objectives. To analyze the effects of jump difficulty on the final performance during snowboarding-slopestyle competition. Methods. All competition sequences (n=214) from the 2014 Winter Olympic Games were analyzed. Of these, 123 were from the...

In humans, β-adrenergic receptor activation causes a substantial portion of hypoxic vasodilation in skeletal muscle at rest and during forearm exercise. Recent evidence suggests that β-adrenergic receptors are either more sensitive or upregulated in young women vs. men. Therefore, we examined whether sex influences hypoxic vasodilation in 31 young subjects (15 women/16 men; 26 ± 1 yr). We also ...

A personal character of surpassing superiority is the engine of human progress. It is an engine of surpassing power making effective the surpassing motives of men, women and children. A personeer is one who projects, creates, controls, directs and perfects this engine of surpassing power. A personeer may he an amateur?anyone, a parent or teacher. The professional personeer may be a priest, a ph...

BACKGROUND Hypertension and metabolic syndrome are cardiovascular risk factors associated with increased adiposity. In a previous study, waist-to-stature ratio (WSR) was identified as the best obesity index associated with left ventricular hypertrophy. OBJECTIVE In this study we compared the ability of this index to identify hypertension and metabolic syndrome with other obesity indexes (body...

OBJECTIVE The goal of this study was to compare the variation of manipulative forces produced by instruments and a manual technique. METHODS Four operators (2 experts and 2 novices) used 4 different mechanical instruments to apply force to a uniaxial load cell. A different group of 2 expert and 2 novice operators used a traditional manual technique to apply force to a sensor mat. Two primary ...