EXPH 365 1st Edition Lecture 5Bruce TM test- 3min stagesIndirect methods- Treadmill with equations VO2 estimation- Heart rate and oxygen uptake- VO2 max at max heart rate- Example VO2 max dataFactors affecting VO2 max- Exercise mode (more muscles moving)o Treadmill > bike- Heredityo 20-30%, 50% max heart rate, 70% work capacity- Training stateo 6-220% after heredity - Gender differenceso Men > women (body comp) (men more muscular)- Ageo Declines with ageLactate Threshold- Pt. at blood lactate abruptly accumulate above test levels during exercise of increase intensity - Onset (2.0-4.0 mmol of lactate accumulate during exercise of increase intensity)- Factors: low tissue oxygen, rely on glycolysis, activation of fast twitch, reduce lactate removal OBLA – onset of Blood Lactate Accumulation Recovery of steady rate - Resynthesizes of high energy phosphate- Replenish oxygen in blood- Replenish body fluids - Replenish muscle myoglobin - Resupply small energy cost to sustain elevated circulation and ventilation Active recovery - Cool downPassive recovery- Doesn’t clear lactate as quickly- Sit down and