ACSM Certified Exercise Physiologist Q&A LATEST Graded A+

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Physical Activity - ANSWER Any bodily movement produced by contracting skeletal muscles, with an increase in energy expenditure. Exercise - ANSWER Planned, purposeful, repetitive Physical Fitnes... s - ANSWER Attributes or characteristics that individuals have achieved that related to their ability to perform physical activity 3 metabolic pathways the body uses to creates ATP - ANSWER 1. Creatine Phosphate 2. anaerobic glycolysis 3. 0xidative system Claudication - ANSWER pain in the leg is induced by exercise, usually because of an artery obstruction. Creatine Phosphate system - ANSWER Small amounts of CP are stored within each cell. Simple one-to-one trade off that allows for the rapid production of ATP. ONLY for use during short bouts of exercise. less that 10 seconds. Anaerobic glycolysis - ANSWER No oxygen required. NExt most immediate energy source. break down carbs (glucose or glycogen) into pyruvate. Used during medium-duration exercise. no more than about 90 seconds. Aerobic glycolysis (oxidative system) - ANSWER Oxygen dependent. As exercise intensity decreases allowing for longer duration activities, use of the oxidative system increases. (Krebs cycle and ETC). Produce ATP in the mitochondria of the cell--requires oxygen. Lasts longer than 1-2 minutes. What is VO2? - ANSWER The volume of oxygen the body consumes. VO2 max is the highest volume of oxygen the body can consume. Define Stroke Volume - ANSWER the volume of blood the heart ejects with each beat. How does SV increase with workload? - ANSWER Similar to HR, it increases as workload increases but only up to ~40% to 60% of VO2max. The percentages can be decreases in sedentary individuals and increased with training. What happens to resting HR as stroke volume increases? - ANSWER it decreases, as more blood being pumped per beat allows the heart to beat less often. What is cardiac output? - ANSWER a measure of blood pumped per minute. The product of stroke volume and heart rate. What does Diastolic Blood pressure do during exercise? - ANSWER Remains stable or decreases slightly. What is rate pressure product? - ANSWER serves as an estimate of myocardial oxygen demand. Product of HR and Systolic BP. HR X SBP What is the Fick equation used to determine VO2 max? - ANSWER VO2max = HRmax X SVmax X a-VO2 difference max (arteriovenous oxygen difference) What is the gold standard to measure Cardiorespiratory fitness? - ANSWER VO2 max during open circuit spirometry. How does a submaximal exercise test work? - ANSWER It estimates VO2 max from the HR response to submaximal single stage or graded exercise. absolute oxygen consumption vs. relative oxygen consumption - ANSWER absolute is the raw volume of O2 consumed by the body. Relative is the volume of O2 consumed relative to body weight. Useful to compare fitness levels between individuals. What is one of the largest components of PA-related energy expenditure? - ANSWER Occupational Physical Ativity 5 Health related physical fitness components - ANSWER Cardiorespiratory endurance, body composition, muscular strength, muscular endurance, and flexibility 6 Skill (performance) related physical fitness components - ANSWER Agility, coordination, balance, power, reaction time, and speed cardiorespiratory endurance - ANSWER ability of circulatory system and respiratory system to supply o2 during sustained physical activity Body composition - ANSWER relative amounts of muscle, fat, bone, and other vital parts of the body Muscular strength - ANSWER Ability of muscle to exert force muscular endurance - ANSWER ability of muscle to continue to perform without fatigue flexibility - ANSWER ROM at a joint. as per the skeletal muscles and not any external forces. Agility - ANSWER ability to change position of the body in space with speed and accuracy coordination - ANSWER ability to use the senses together with body parts to perform tasks smoothly and accurately balance - ANSWER maintenance of equilibrium while stationary OR moving reaction time - ANSWER time elapsed between stimulation and the beginning of the reaction to said stimulus [Show More]

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