Flexibility relates to efficiency of movement? Increased blood flow through skeletal muscles in active recovery, ATP immediately increased, O2 uptake rapid increase, initially anaerobic ATP production, O2 deficit, Estimates metabolic rate via the measurement of oxygen consumption, Indirect calorimetry, inhale via facemask from O2 container -> expired air goes back into container via soda lime which absorbs CO2. If too much or too little. 1. Exercise physiology is the study of how the body reacts to physical exercise, in both the long and short term, and how the body adapts to ongoing exercise and any changes to a routine.. Major blood pressure increase during snow shovelling. Physiology. Alcohol intake, chemical and drugs. Dynamic -> muscle contracts causing muscle shortening and joint angle changes, Mechanisms account for increase SV during exercise, Enhanced cardiac filling in diastole followed by a more forceful systolic contraction. Smooth muscle controls arteriolar diameter and regulation of blood flow to capillaries not pre-capillary sphincter -> no function in artery diameter regulation, Redistribution of Cardiac Output to body organs during exercise, Skeletal muscle can take upto 90% of Cardiac Output at maximum exercise. Trained athletes exhibit increased LV wall thickness and mass with no changes in LVEDV vs sedentary, Synthesis of adaptation in CV system with aerobic exercise which increases O2 delivery, Increase in plasma volume and RBC mass lead to an increase in total BV. Exercise Physiology Flashcard Maker: Anthony Kemmer. Undergraduate 3. Aerobic fitness and BBF are positive correlations, habitual exercise affects the age induced decreases in BBF. Capillary density and tortuosity affects surface area for exchange red cell to muscle, Capillary density underestimate surface area contact between capillary and muscle fibres. High afterload increases myocardial work, How VO2, HR and BP differ arm and leg exercise, Higher BP and HR during equivalent sub maximal exercise with arms vs legs. Quickly memorize the terms, phrases and much more. Our students take courses in metabolism, physiology, epidemiology and disease prevention. Exercise physiology is the study of the mechanics of body movements and how physical exertion affects the human body. Compared to our resting state, exercise poses a substantial increase in demand for the body. How much energy is provided by Protein through exercise energy expenditure? Loss= evap, radiate, conduct, convect.//Gain = BMP, muscle activity, hormones, thermic effect of food, postural changes, environment, Dehydration, physical response to exercise, Dehydration - loss of fluid from the body, Acclimatization, Fitness, Hydration, Clothing, Wind, Environmental Temp, Environmental Humidity, Increased sweat output, salt in sweat = maximises evaporative cooling, Boyle's Law - gas volume inversely proportionate to its pressure, Physiological challenges to work and exercise at higher altitude, Lethargy, Dysponea, Anorexia, GI disturbances, Isomnia, Nausea, Vomiting, Light headedness, Headache, Relationship between VO2max and altitude and how maybe altered post acclimatization, Immediate response = get in more O2 molecules. What happens in step 4 and 5 of glycolysis to the P-6C-P? With a team of extremely dedicated and quality lecturers, exercise physiology chapter 6 quizlet will not only be a place to share knowledge but also to help students get inspired to explore and discover many creative ideas from themselves. Respiratory control of A-B balance involvement in regulation of blood pCO2, increase in blood pCO2 decreases pH. Microdialysis, Sympathetic neural factors and rapid rise in muscle blood flow at exercise onset, Neural - doesn't account for rapid increase in blood flow. What are some examples of mechanical work? Ambient temperature influences via evaporation, convection, radiation, Convection and radiative heat loss increases. Exam 2. Less evaporation can occur so body heat keeps rising, Thermoreceptor to detect change and then modify to maintain. Ventilatory changes, hyperventilation, raises alveolar O2, lowers alveolar CO2 = alkalosis and diuresis (HCO3). What is the process of converting FFAs to TAGs? What is the most basic unit of a Protein? Increased ventilation = CO2 exhalation, decreased PCO2 and H+ concentration, pH increases to compensate for metabolic acidosis = hyperventilation to decrease a PCO2. Renin and Aldosterone levels also change. Create your own flash cards! Muscle Metabolism - enzymes, energy stores. Term. Step 6 of glycolysis what is added to the 3C-P and what is lost and to what is it lost to? What is the process of converting TAGs to FFAs? Undergraduate 2. Study Flashcards On Physiology of Exercise Quiz 2 at Cram.com. 1. What is the process of converting Glucose to Glycogen? What is the capacity of energy in aerobic metabolism (lipid). More O2 available for working muscle. Programs include courses in science and health-related subjects, such as biology, anatomy, statistics, kinesiology, and nutrition, as well as clinical work. What is the enzyme called cleaves ATP to ADP and energy is emitted? What do N free amino acids become in glycolysis and the Krebs Cycle? It pulls the rest of the reactions forward, Five coupled proteins that span the inner membrane of mitochondria, Pass the pairs from one protein to another, as the electron go down the chain protons are drawn into the intermembrane space from the matrix of the mitochondria. 977 Cards – 15 Decks – 313 Learners Same studies suggest activation of gIII/IV afferents limit central motor drive in exercising individuals, which protects against excessive development of peripheral factors, Physiological mechanism behind HFF and LFF, LFF - frequency response curve shifted to the right, can describe this curve as a ratio of forces. More fill greater contraction, Sympathetic nerve activity, static muscle contractile, anatomical impedance, intrathoracic pressure, blood pressure, Increased HR, decreasing SV and vice versa, 55% plasma, 45% erthrocytes (haemocrit), leukocytes and platelets, Structure and function of arteries, capillaries, veins, Arteries - distribution and resistance// thick smooth muscle and collagen. Slow = oxidative > glycolytic//fast = opposite. The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The parallel action of the locomotor and autonomic circuits in the CNS that simultaneously increase motor activity as well as arterial pressure, cardiac rate and ventilation, Neural mechanism, evoked by the contraction-induced stimulation of thin fibre muscle afferents, Experimental techniques to investigate mechanisms to control CV system during exercise, Mechanisms controlling the CV system during exercise, handgrip dynamometer, occlusion afferent, ECG, muscle SNA, Finger Artery BP, Main actions of central command, muscle mechanoreflex, muscular metaboreflex on ANS, HR, BP, CC = Increased HR via vagal withdrawal, can increase SNA at increased exercise intensity, Baroreceptors detect a change in the BP of the blood flowing through the carotid sinus and the aortic arch. What is going on when lactate is being converted to Pyruvate and what enzyme will catalyse the reaction? The availability of what dictate the fate of Pyruvate? when amino acids are converted into intermediates that are used in gluconeogenesis, Amino acids are converted into intermediates that are directly metabolized for energy or converted into lipid. In order for proteins to be used for energy what from the amino acids needs to be cleaved off? What are the 3 main types of Free Fatty Acids (FFA)? Non-pathological muscoskeletal tightness can decrease O2 energy cost, Explain muscular adaptation to fix in a shortened/lengthened position, Shortened = lose sarcomeres and fibres become shorter, ROM compramised, Explain how muscle fibre length influences velocity of contraction and power output, Shorter, slower and decrease powerful fibre. Learn exercise physiology with free interactive flashcards. Many enzyme catalysed processes in living cells, Molecule/ion that increases in cell as a result of interaction with 1st messenger and receptor that alters cellular activity, Also involved in the regulation of body temperature, Anterior portion of pituitary gland, secretes FSH, LH, AH, TSH, GH, Prolactin, Portion of pituitary secreting oxytocin and ADH, produced in hypothalamus, Hormone secreted by posterior pituitary promotes water retention by kidney, Hormone secreted by anterior pituitary, stimulates adrenal cortex, Synthesized and secreted by anterior pituitary, stimulates growth of skeletal muscle and soft tissues, groups of growth-stimulating peptides released from the liver and other tissues in response to growth hormone. Vagal withdrawal predominates at low intensity, it is very liable, Equation for estimating maximum HR and SD, Amount ventricles are stretched by containing blood, Cardiac cell contractile force due to factors other than EDV, Back pressure exerted by blood in large arteries leaving the heart, Muscle pump, respiratory pump, blood volume, venous tone, posture, Skeletal muscle and respiratory muscle fibres pumps = increase venous return, Skeletal muscle pump, muscle squeezes veins. Exercise Physiology . 02/18/2013. Cram.com makes it easy to get the grade you want! Quickly memorize the terms, phrases and much more. Learn more about this scientific area of study by reviewing the related lesson and completing this quiz. Quickly memorize the terms, phrases and much more. Cutaneous circulation = threshold for VD does not directly//Skin BF is increased as core temperature increases - better heat loss, 3 potential mechanisms for vascular adaption to exercise training and explain how might operate to bring vessel growth, Metabolic - hypoxia, Growth Factors - vascular endothelial G.F., Mechanical - BF/shear stress wall tension. Maybe caused due to dehydration or thermoregulation resulting in venous return decreasing, Exercise intensity influence the temporal pattern of HR to static exercise, Progressive increase in blood pressure during static exercise intensity. 61. Short = sarcomeres removed/stay the same, muscular mass lost fast. If there is so little ATP in our bodies, then how do we live? What are the Respiratory quotients (RQ) of: Does RQ increase or decrease with exercise intensity? Fight vs flight, ACh released, not shown in humans. Convection = transfer of heat between object and fluid/air. Acidosis increases Ca2+ binding with sarcoplasmic reticulum, inhibits Ca2+ release and Ca2+ dependent Ca2+ reuptake. What is oxygens role in the ETC and aerobic metabolism? What process results in potentially fatiguing metabolites? Hypertrophy occurs as chamber size and wall thickness increase. Cards Return to Set Details. Unilateral limb training causes some increase in strength of contralateral limb. Changes in volume of O2 in the container are recorded as the volume of O2 consumed, Indirect calorimetry, inhale air from atmosphere. What is the process called when ATP is cleaved to ADP and energy is emitted? Veins - return blood to the heart. Electrical stimulation at increased frequency for several seconds. Increased HR offsets decreasing so Q maintained. As ventricle fills with blood, the pressure and the volume that result from filling, detail by compliance of very normal plotted as changes in volume > change in pressure. When inputing from these afferents partly blocked by lumbar inter the cal injury of the u opoid agonist fenatyl, subject to ratings of perception exertion/fat decrease during lower limb exercise were significantly attenuated. What are the benefits of so little storage of ATP? Irradiation. How many different amino acids does the human body use? Evaporation = heat loss when liquid takes on gaseous form. A second messenger may activate enzymes within the cell as a result of the hormone-receptor bond, 4 key factors that determine concentration of a hormone, quantity synthesised in host endocrine gland, rate of catabolism of excretion, quantity of transport proteins, changes in the plasma volume, Factors influencing the magnitude of effect that a hormone has on a target tissue, Higher concentration of hormone, the greater the effect. Description. exercise physiology chapter 6 quizlet provides a comprehensive and comprehensive pathway for students to see progress after the end of each module. When the e- get to the 4th protein the proton will travel through the 5th protein (channel protein) out to the matrix creating enough energy to create ATP. Heavy = O2 uptake of respiratory muscle, represents greater fraction of whole body. What is it called when you have a lipid and a phospholipid together? Glycolysis, lipolysis, bronchodilation, vasodilation/constriction. Click here to study/print these flashcards. Embryonic myosin is gradually replaced by slow or fast myosin, Recruitment of motor units, stimulus intensity, duration, Progress of conversion of fibre types during training, Increase in muscle size due to hypertrophy, usually of the fibre type involved in training. Learn exercise physiology chapter 5 with free interactive flashcards. Cardiac hypertrophy, diffusion distance increases and so should be matched by capillary network expansion - chronic resistance training. Sign up here. Long = sarcomeres added, muscle mass stays same/lost slowly. Circulatory Adaptations, Respiration, Physiology of Training. Total Cards. Test your understanding of Exercise physiology concepts with Study.com's quick multiple choice quizzes. Slower Ca2+ reuptake in fatigued muscle, and Ca2+ concentration therefore remains elevated for longer. In Step 5 of the Krebs Cycle what is going on when the 5C is reduced to a 4C? Missed a question here and there? PCr and Cr decreased. ACSM's Resources for the Exercise Physiologist, Second Edition. Radiation = heat gain/loss information of electromagnetic waves. Greater O2 debt takes longer for O2 level to return to resting, Lag in O2 uptake at the beginning of exercise, After exercise O2 doesn't return to resting immediately, extra O2 consumed during recovery, The point at which blood lactate rises systematically during incremental exercise, At 4mmol. EXERCISE PHYSIOLOGY-DEFINITION, SCOPE AND IMPORTANCE EXERCISE: Is the performance of movements in order to develop or maintain physical fitness and overall health. Venous return is poorer in the arms because the muscle pump is weaker because the arterial circulation is not as effective as arms are above the heart. Pyruvate -> Acetyl CoA -> Oxaloacetate, Group of compounds passing electron from one another via redox reactions down a proton gradient, General screening tool used to evaluate the hearts response to exercise, EPOC. Heavy exercise increases production of lactic acid, increased K+ = lower pH = inhibition of enzyme involvement in ATP production = hinders muscle contraction because K+ compete with Ca2+ for troponin binding site//reducing Hb-O2 affinity, Principal intra and extra cellular buffers, Cellular buffers= proteins, bicarbonate and phosphate groups. In step 1 of glycolysis what enzyme cleaves ATP and adds that Phosphate group to the glucose? Ventilation, limiting factor max O2 uptake? An influence (puch or pull) that results in a change in velocity, Chemical reactions that release free energy. Continuous exercise 2.5 - 7 miles running, interval training, 2.5 min running at near VO2max, 4 strategies used to stimulate microgravity, Head down bedrest, wheelchair, immoblization, Parabolic flight. 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