NTR 108 Lecture Notes - Lecture 19: Lean Body Mass, Phosphocreatine, Intramuscular Injection
Document Summary
Improved - mental outlook and capacity, self-image, self-confidence. Lean body mass (decreased body fat), bone mass, heart, lung and muscle function. Reduced risk for - cvd (higher hdl, lower ldl), hypertension, diabetes, cancer. Components of fitness: muscle endurance: muscle function due to an increase in muscle mass. Flexibility: range of motion of an anatomical joint. Strength: ability to exert force on something using muscle. Cardiovascular endurance: ability to utilize o2 more efficiently: metabolism. Anaerobic: energy production doesn"t need oxygen, but lactate can build up, muscle strength & mass. Aerobic: uses oxygen for complete metabolism to co2, cardiovascular fitness. Atp is the primary fuel used for muscle contraction. Creatine phosphate (same as phosphocreatine) is used as a very short term energy store to regenerate atp. Atp & phosphocreatine (<5 to 10 seconds) (30s dep. ) Glucose can be used from intramuscular stores of glycogen & blood. At intermediate / high intensity exercise time (2)
