In a recent paper, Farmer (2000) offered a novel and stimulating hypothesis for the convergent evolution of endothermy in birds and mammals. She proposed that a high level of nonshivering thermogenesis by adults evolved because of the benefits it provided to their developing embryos. Initially, a higher standard metabolic rate (SMR), and consequently a higher body temperature, served only to in...

In recent years, breakpoints (Bp) of muscle oxygenation have been measured in local muscles using near infrared spectroscopy (NIRS) to assess (predict) systemic aerobic capacity indices [lactate threshold (LT), gas exchange threshold (GET) and maximal oxygen uptake (VO2peak)]. We investigated muscular differences in the assessment (predictive) ability of the Bp of muscle oxygenation for aerobic...

BACKGROUND Patients with fibromyalgia present a reduced capacity of upper and lower limb physical performance and affect their independence in performing everyday activities. OBJECTIVE The purpose of the present systematic review was to summarize evidence for the effectiveness and structure of exercise programs on functional aerobic capacity in patients with fibromyalgia syndrome. METHODS K...

OBJECTIVE Community exercise programs are effective in improving aerobic capacity after stroke, but individual variability in training responses has not previously been studied. This study examined explanatory factors for post-program responses in aerobic capacity (VO2peak) with respect to training parameters and participant characteristics. DESIGN Secondary analysis of data from a prospectiv...

Background. High aerobic capacity is associated with low cardiovascular (CV) risk. The aim of this study was to determine the CV RF burden in subjects with aerobic capacity ≥10 METs and compare it with those having <10 METs. Methods. Cross-sectional study in 2646 subjects (mean age 48 ± 12 years). Demographics, medical history, physical activity, cardiovascular RFs, fasting lipids and blood glu...

BACKGROUND Several studies indicates that children's aerobic capacity levels are predictors of the future risk of non-communicable diseases. Therefore, the aim of this study was to establish the proportion of subjects whose aerobic capacity is indicative of future cardiovascular risk in Indian-Nasa community from a low-income area in Cauca, Colombia. METHODS We performed a cross-sectional ana...

purpose: military personnel are expected to maintain the highest possible level of physical   fitness to do their duties. several factors including body composition and body mass index   affect the level of their physical preparedness. the current study was designed to investigate   the effect of body composition and body mass index in the level of physical preparedness of   iranian military pe...