Which of the following is not a physiological change due to altitude training?

Correct option is D

Reduced powerhouse density is not a physiological change due to altitude training. Instead, mitochondrial density (often referred to as the "powerhouses of the cell") either remains stable or may increase to improve energy production efficiency under hypoxic conditions.
Key Adaptations to Altitude Training: 1. More Number of Capillaries (a):
· The body may develop additional capillaries to enhance oxygen delivery to tissues in response to reduced oxygen levels at altitude.
2. Increased pH Balance (b):
· Training at altitude enhances buffering capacity to combat acidosis, stabilizing pH levels during intense exercise.
3. Effective Pulmonary Function (c):
· Altitude training improves pulmonary efficiency, including increased ventilation rate, to compensate for lower oxygen availability.
4. Reduced Powerhouse Density (d):
· This is incorrect; the density and efficiency of mitochondria are crucial for adapting to the oxygen-limited environment of high altitudes and are typically maintained or enhanced.
Correct Answer: (d) Reduced powerhouse density Information Booster 1. Physiological Changes Due to Altitude Training:
· Increased erythropoietin (EPO) secretion leading to more RBC production.
· Improved capillary density for better oxygen delivery.
· Enhanced pulmonary ventilation and oxygen uptake efficiency.
· Greater buffering capacity for maintaining pH balance.
2. Why Mitochondrial Density Matters:
· Mitochondria are essential for aerobic energy production. Maintaining or increasing their density ensures optimal ATP production under hypoxic conditions.
3. Potential Challenges:
· Altitude exposure can lead to muscle mass reduction if not managed carefully.