Influence of exercise intensity on pulmonary oxygen uptake kinetics at the onset of exercise and recovery in male adolescents.
The dynamics of the pulmonary oxygen uptake (VO2) responses to square-wave changes in work rate can provide insight into bioenergetic processes sustaining and limiting exercise performance. The dynamic responses at the onset of exercise […]
Use of parenteral nutrition in patients with advanced cancer.
The purpose of this study is to describe patient-related variables in a cohort of advanced cancer patients (ACPs) enrolled in a home parenteral nutrition (HPN) program. This study reviewed the cohort of ACPs enrolled in the Northern Alberta Home Total Parenteral Nutrition Program (NAHTPNP). […]
A chronic increase in physical activity inhibits fed-state mTOR/S6K1 signaling and reduces IRS-1 serine phosphorylation in rat skeletal muscle.
A chronic increase in physical activity and (or) endurance training can improve insulin sensitivity in insulin-resistant skeletal muscle. Cellular mechanisms responsible for the development of insulin resistance are unclear, though one proposed mechanism is […]
Increase in depression symptoms with weight loss: association with glucose homeostasis and thyroid function.
The purpose of this study was to assess the potential impact of weight loss up to a state of plateau on symptoms of depression. Eleven obese men (mean body mass index (BMI) = 33.4 kg.m-2, mean age = 38 […]
AMPK inactivation in mononuclear cells: a potential intracellular mechanism for exercise-induced immunosuppression.
There is much evidence that prolonged intense exercise suppresses the immune system. However, the intracellular biochemical mechanisms linking exercise and immunosuppression remain obscure. The purpose of this study was to investigate the hypothesis that exercise-induced inactivation of 5′AMP-activated protein kinase (AMPK) […]
Adjustment for gas exchange threshold enhances precision of heart rate-derived VO2 estimates during heavy exercise.
Overestimates of oxygen uptake (VO2) are derived from the heart rate reserve - VO2 reserve (HRR-VO2R) model. We tested the hypothesis that adjusting for differences above and below gas exchange threshold (HRR-GET model) would tighten the precision of […]
Impact of metformin on peak aerobic capacity.
Individually, exercise and the drug metformin have been shown to prevent or delay type 2 diabetes. Metformin mildly inhibits complex I of the electron transport system and may impact aerobic capacity in people exercising while taking metformin. The purpose of the study was to evaluate the […]
Reliability of electromyographic and force measures during prone isometric back extension in subjects with and without low back pain.
Maximal voluntary isometric activations (MVIA) are frequently used as inputs for models attempting to predict muscle force and as normalization values in studies assessing muscle function. However, pain may adversely affect maximal muscle activation. […]
Effect of dietary protein content during recovery from high-intensity cycling on subsequent performance and markers of stress, inflammation, and muscle damage in well-trained men.
Nutrition is an important aspect of recuperation for athletes during multi-day competition or hard training. Post-exercise carbohydrate is likely to improve recovery, but the effect of protein is equivocal. […]
Central venous thrombosis in patients receiving long-term parenteral nutrition.
Long-term parenteral nutrition (PN) is administered to patients who are unable to use their gastrointestinal tract to absorb sufficient nutrients and water to maintain their nutritional status. Patients receiving long-term parenteral nutrition are at risk of numerous complications including thrombosis of the central venous […]
