KINE 4010 Study Guide - Quiz Guide: Cellular Respiration, Carbohydrate Metabolism, Exercise Physiology
22 Jul 2015
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Lactate is formed and accumulates when the rate of glycolytic production of pyruvate and nadh exceeds the rate at which these products are shuttled into the mitochondria. An accumulation of h+ in the blood will increase the respiratory exchange ratio (rer) measurement. A respiratory exchange ratio value of 1. 0 would indicate that for each gram of carbohydrate used to make atp, one gram of protein was also being used. Blood glucose remains a source of fuel during exercise even after muscle glycogen has been depleted. Fat contains more energy per gram than carbohydrates; therefore, atp can be produced more rapidly from fats than from carbohydrates. Trained individuals usually produce less lactate than untrained individuals when making the transition from rest into a steady state of exercise. True false: while lactic acid accumulation may contribute to muscle fatigue during exercise, it does not cause the muscle soreness that may occur 24-48 hours after exercising.
