Q. The sensation of fatigue in the muscles after prolonged strenuous physical work, is caused by
A) a decrease in the supply of oxygen
B) minor were and tear of muscle fibers
C) the deletion of glucose
D) the accumulation of lactic acid
Explanation
The reduction in force of contraction of a muscle after prolonged stimulation is called muscle fatigue. The accumulation of lactic acid leads to muscle fatigue. Lactic acid is produced by glycolysis in absence of${\ O}_{2}$.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.