2. Adaptations to chronic endurance training: increase capillary density increase oxidative enzymes increase mitochondrial density

3. TR individual reach Steady State more rapidly than UNTR why?

4. Submaximal work: TR and UNTR will have the same oxygen cost TR will exercise at lower HR TR will exercise at lower intensity

5. Fat catabolism during low intensity exercise

6. low intensity: 5 kcal/min most (72%) derived from fat 3.6 kcal from fat, 0.4 gms of fat

7. double intensity: 10 kcal/min 45% of energy is derived from fat 4.5 kcal/min, 0.5 gm of fat

8. e.g., 5 kcal/min for 60 min = (5 X 60) = 300 kcals, 24 gm fat

9. 10 kcal/min for 45 min = 450 kcals, 22.5 gm fat

10. Therefore, should you encourage some one to exercise at low intensity to “burn more fat”?????

11. Fat facts: fat utilization decreases when exercise follows a high CHO meal (increase in circulating insulin) fat utilization decreases when lactate begins to accumulate ability to use fat as a fuel increases with training