Question

A student lifted weights after school and found that his muscle started to burn. He couldn’t continue to lift the weights after prolonged exercising. This muscle fatigue is most likely due to

Answer 1

Dehydration and lack of proper stretching :)

Answer 2

lack of oxygen and build up of waste in the muscles

Step-by-step explanation:

Muscles need energy to perform the contraction function, which is very important for weight lifting. The nutrients and oxygen contained in the blood supply this energy to the muskline. If the circulation does not occur satisfactorily in the muscle, there will be an accumulation of residues and speaking of oxygenation, that way the muscles will work anaerobically, which produces a residue called lactate. When there is an accumulation of lactate, muscle fatigue occurs, the muscle becomes weak and tired and contracts irregularly causing tremors and spasms.