Our aim was to determine if women who regularly perform endurance exercise demonstrate age-related elevations in body mass and adiposity. Ninety-five healthy females were studied: premenopausal ( n = 28; mean ± SE age 30 ± 1 yr) and postmenopausal ( n = 31; 56 ± 1 yr) endurance-trained runners and premenopausal ( n = 17; 29 ± 1 yr) and postmenopausal ( n = 19; 61 ± 1 yr) sedentary controls. In ...

The glycemic index (GI) of ingested carbohydrates may influence substrate oxidation during exercise and athletic performance. Therefore, the aim of this study was to assess the effect of low- and moderate-GI three-week diets on aerobic capacity and endurance performance in runners. We conducted a randomized crossover feeding study of matched diets differing only in GI (low vs. moderate) in 21 e...

This study aimed to predict the velocity corresponding to the maximal lactate steady state (MLSSV) from non-invasive variables obtained during a maximal multistage running field test (modified University of Montreal Track Test, UMTT), and to determine whether a single constant velocity test (CVT), performed several days after the UMTT, could estimate the MLSSV. Within 4-5 weeks, 20 male runners...

Eighteen highly-trained runners ran two half marathons in mild environmental conditions, 3 wk apart, consuming either 426 +/- 227 mL of a flavored placebo drink (PLACEBO) or an equivalent volume of water (386 +/- 185 mL) and a commercial gel (GEL) supplying 1.1 +/- 0.2 g/kg body mass (BM) carbohydrate (CHO). Voluntary consumption of this fluid was associated with a mean BM change of approximate...

OBJECTIVES The objective of the study was to reveal morphology, electrolyte and chosen biochemical parameters in terms of health risk in runners in reference to their age and running speed in the case of running a distance of 100 km, which occur after 12 h or 24 h of recovery. MATERIAL AND METHODS Fourteen experienced, male, amateur, ultra-marathon runners, divided into two age and two speed ...

Success in endurance running is primarily determined by maximal aerobic power (VO2max), fractional utilization, and economy (RE). Within the literature, two training modalities have been identified to improve VO2max; continuous (CT) interval-training (IT). The efficacy of IT VO2max well-trained runners remains equivocal, as does whether a dose-response relationship exists between load performed...

BACKGROUND Intensive endurance training has been associated with a high prevalence of symptoms compatible with asthma in elite athletes. It is not known, however, whether there is an association between the type of training for competitive events and the risk of asthma in highly trained athletes. METHODS Two hundred and thirteen track and field athletes, mostly from Finnish national teams, an...

We investigated the change of body composition in ultra- endurance runners during a multi-stage ultra-endurance run, the Isarrun 2006 in Bavaria, Germany, where athletes had to run 338 km within 5 days. Body mass, skin fold thicknesses and circumferences of extremities were measured in 21 well-experienced extreme endurance male runners (mean ± SD, 41.5 ± 6.9 years, 72.6 ± 6.4 kg, 178 ± 5 cm, BM...

In a world where we are constantly bombarded with countless images of Islamic terrorism, violence, and danger, it is not surprising that we have come to associate all aspects of Islamic society with malevolence. This destructive way of thinking has impacted the way we—as Westerners— think about, portray, and perceive Muslim men and women. While Muslim men are often depicted as hostile, cruel, a...