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Muscle Characteristics and Substrate Energetics in Lifelong Endurance Athletes
AGING CHRONIC EXERCISE MUSCLE FIBERS CAPILLARY DENSITY ENERGY EXPENDITURE SUBSTRATE OXIDATION INSULIN SENSITIVITY
2017/4/13
Purpose: The goal of this study was to explore the effect of lifelong aerobic exercise (i.e., chronic training) on skeletal muscle substrate stores (intramyocellular triglyceride [IMTG] and glycogen),...
Acute effectiveness of a “fat-loss” product on substrate utilization, perception of hunger, mood state and rate of perceived exertion at rest and during exercise
Multi-ingredient Weight loss Thermogenic Maximal fat oxidation
2015/12/2
Achieving fat-loss outcomes by ingesting multi-ingredient mixtures may be further enhanced during exercise. This study tested the acute thermogenic effectiveness of a commercially available multi-ingr...
Multiple Arrhythmogenic Substrate for Tachycardia in a Patient with Frequent Palpitations
atrioventricular nodal reentrant tachycardia atrioventricular reentrant tachycardia atrial tachycardia accessory pathway catheter ablation
2015/7/31
We report a 26-year-old woman with frequent episodes of palpitation and dizziness. Resting electrocardiography showed no evidence of ventricular preexcitation. During electrophysiologic study, a conce...
Idiopathic Submitral Left Ventricular Aneurysm: an Unusual Substrate for Ventricular Tachycardia in Caucasians
submitral aneurysm ventricular tachycardia
2015/7/31
Annular submitral aneurysms have been rarely reported in Caucasians. They are typically diagnosed in non-white adults who present with severe mitral regurgitation, heart failure, systemic embolism, ve...
Effects of Acute Hypoxia on Body Substrate Utilisation During Progressively Increasing Work Rate Exercise Tests
Exercise tests respiratory quotient substrate utilisation
2009/6/24
Respiratory quotient (RQ) was used to assess the effectiveness of exercise interventions in shifting substrate utilisation. The body's RQ can be estimated non-invasively from the ratio of CO2 producti...
Physiological impact of hypohydration on thermoregulation, cardiovascular function, and substrate usage during exercise
dehydration body temperature regulation cardiovascular physiology energy metabolism
2009/4/2
Water is an essential nutrient for life and the intake of fluid before and during prolonged exercise is key for optimal performance. Hypohydration, a condition of fluid deficit, can adversely affect...