Ecologically Valid Carbohydrate Intake during Soccer-Specific Exercise Does Not Affect Running
Performance in a Fed State
Abstract: This study assessed the effect of carbohydrate intake on self-selected soccer-specific runnin performance. Sixteen male soccer players (age 23 ± 4 years; body mass 76.9 ± 7.2 kg; predicted VO2max = 54.2 ± 2.9 mL·kg−1 ·min−1; soccer experience 13 ± 4 years) completed a progressive multistage fitness test, familiarisation trial and two experimental ...
Critical evaluation of food intake and energy balance in young modern pentathlon athletes: a cross-sectional study
Abstract
Background: Modern pentathlon comprises five sports: fencing, swimming, equestrian jumping, and a combined
event of pistol shooting and running. Despite the expected high energy demand of this sport, there are few
studies that provide support for the nutritional recommendations for pentathletes. The purpose of the present
study was to evaluate young modern pentathlon ...
Carbohydrate Nutrition and Team Sport Performance
Abstract The common pattern of play in ‘team sports’ is ‘stop and go’, i.e. where players perform repeated bouts of brief high-intensity exercise punctuated by lower intensity activity. Sprints are generally 2–4 s long and recovery between sprints is of variable length. Energy production during brief sprints is derived from the degradation of intra-muscular phosphocreatine and glycogen (anaerobic metabolism). Prolonged periods of ...
Zinc is a critical regulator of placental morphogenesis and
maternal hemodynamics during pregnancy in mice
Zinc is an essential micronutrient in pregnancy and zinc defciency impairs fetal growth. We used a mouse model of moderate zinc defciency to investigate the physiological mechanisms by which zinc is important to placental morphogenesis and the maternal blood pressure changes during pregnancy. A 26% reduction in circulating zinc (P=0.005) was exhibited in mice fed a moderately zinc-de...
Environmental exposure to zinc and copper influences sperm quality in fertile males
Introduction. The presented study was designed to investigate the associations between environmental exposure to zinc and copper and levels of the parameters of oxidative stress and antioxidant defence system and selected cytokines in the
seminal plasma of fertile males.
Materials and methods. The study population consisted of 65 fertile male volunteers from the southern region of Poland. Based on the ...
Zinc as a Gatekeeper of Immune Function
After the discovery of zinc deficiency in the 1960s, it soon became clear that zinc is
essential for the function of the immune system. Zinc ions are involved in regulating intracellular signaling pathways in innate and adaptive immune cells. Zinc homeostasis is largely controlled via the expression and action of zinc “importers” (ZIP 1–14), zinc “exporters” (ZnT 1–10), and zinc-binding proteins. Anti-inflammatory and anti-oxidant propert...
Quantifiable effects of regular exercise on zinc status in a healthy population—A systematic review
Zinc is an essential mineral of which its functions have potential implications on exercise performance and beneficial adaptations of physical activity. While the effects of aerobic exercise on zinc metabolism acutely have been well described, the effect of long-term exercise training on zinc status remains unclear. The present review aims to determine the effects of exercise training on ...
Adherence to zinc supplementation guidelines for the treatment of diarrhea among children under–five in Uttar Pradesh, India
Background There is limited evidence on adherence to the recommended
dose and duration of zinc supplementation for diarrheal
episodes in children under five years of age. In selected districts of
Uttar Pradesh, India, we sought to assess adherence to the nationally
advised zinc treatment regimen (ie, 10 mg/day for ages 2–6
months and 20 mg/day for ages 7–59 ...
