Aerobic adaptations

1. What adaptations to bone and connective tissue occur due to aerobic training? What is required in the training for the adaptations to occur?
Bone, tendons, ligaments, and cartilage strengthen with exercise intensity beyond daily activities, especially weight-bearing. Interval training offers a strong stimulus for these adaptations.

2. Why does VO₂ max increase due to aerobic training?
VO₂ max improves due to increased stroke volume, capillary density, mitochondrial function, and aerobic enzymes, enhancing oxygen delivery and use.

3. Why does cardiac output remain unchanged during submaximal exercise as a result of aerobic training?
Submaximal cardiac output is maintained because increased stroke volume compensates for a lower heart rate, reflecting greater efficiency.

4. How do the changes in the left ventricle affect performance?
Left ventricular hypertrophy increases stroke volume and cardiac output, improving oxygen delivery and endurance performance.

5. How do women compare to men in aerobic power? Do women respond differently to aerobic training compared to males?
Women’s VO₂ max is 73%-85% of men’s due to body composition and hemoglobin levels. However, training adaptations are similar between sexes.

6. What biochemical and endocrine responses occur from overtraining?
Overtraining reduces testosterone-to-cortisol ratio, growth hormone, and glycogen while increasing muscle damage markers like creatine kinase.

7. What are the markers of aerobic overtraining?
Decreased performance, increased muscle soreness, altered heart rate and blood pressure, reduced glycogen, hormonal imbalances, and mood changes.

8. What are the effects of detraining from aerobic training?
VO₂ max, stroke volume, and blood volume decline, while heart rate increases. Mitochondria and aerobic enzymes diminish within two weeks.

Acute Responses Table

Chronic Cardiovascular Adaptations Table