A moderate dose of caffeine may enhance muscular strength and power, particularly in males. Less is known on caffeine’s impact performance females. PURPOSE: To determine the effects a 200 mg gum power recreationally active METHODS: Nineteen women performed 3 laboratory sessions beginning with familiarization trial. They came to total sessions, first being For visits 2 3, participants were asked...

In the wet season, a large portion of the Amazon region constitutes one of the most pristine continental areas, with very low concentrations of atmospheric trace gases and aerosol particles. However, land use change modifies the biosphere-atmosphere interactions in such a way that key processes that maintain the functioning of Amazonia are substantially altered. This study presents a comparison...

Similarities and differences in the submicron atmospheric aerosol chemical composition are analyzed from a unique set of measurements performed at 21 sites across Europe for least one year. These located between 35 62°N 10° W – 26°E, represent various types settings (remote, coastal, rural, industrial, urban). Measurements were all carried out on-line with 30-min time resolution using mass spec...

Peripheral muscle dysfunction is a recognized and important systemic consequence of many chronic diseases. Peripheral muscle weakness is associated with excess utilization of health care recourses, morbidity and /or mortality in patients with COPD, congestive heart failure, liver and frail elderly. In the latter group, muscle weakness was associated with significant increase in falling and fall...

BACKGROUND Current ACSM guidelines recommend that adults should exercise for 20-60 min on 3-5 days.week(-1) (M.L. Pollock, et al., The recommended quantity and quality of exercise for developing and maintaining cardiorespiratory and muscular fitness, and flexibility in healthy adults. Medicine and Science in Sports and Exercise, 30 (6) (1998) 975-991.). For individuals constrained by a busy lif...

OBJECTIVE The main aim of this paper is to review the evidence available from the date of PubMed's inception to May 2011 for a link between cancer and physical activity (PA) in both animal models and humans. METHODS We decided to select studies that comply with the scheme proposed by the American College of Sports Medicine/American Heart Association (ACSM/AHA) that distinguish occupational ph...