Muscle fatigue occurs due to accumulation of-

Question

Question

This question was previously asked in

RRB JE CBT I - (Held On: 2 June 2019 Shift 1)

Answer 1

The correct answer is Lactic acid

Key Points

Muscle fatigue occurs due to the accumulation of lactic acid in the muscles.
Lactic acid is produced during anaerobic respiration when there is a lack of oxygen supply to the muscles.
During intense exercise, the oxygen supply to the muscles is insufficient, leading to anaerobic respiration and the production of lactic acid.
The accumulation of lactic acid lowers the pH within muscles, causing an acidic environment that contributes to the sensation of fatigue and discomfort.
This mechanism allows the body to temporarily continue generating energy in the absence of sufficient oxygen but is not sustainable for long periods.

Additional Information

Creatine phosphate acts as an energy reserve in muscle tissue but does not cause fatigue.
Carbon dioxide is a byproduct of aerobic respiration and is expelled from the body through the respiratory system.
CO, or carbon monoxide, is a toxic gas that can impair oxygen transport in the blood but is not typically associated with muscle fatigue.
Proper hydration, nutrition, and conditioning can help manage and reduce muscle fatigue during physical activities.

```