What are the diagnostic methods of exercise-induced fatigue

summary

Exercise fatigue mainly occurs after strenuous exercise, which belongs to physiological phenomenon. It should be diagnosed correctly so as to deal with it reasonably. Let's take a look at the diagnostic methods of exercise-induced fatigue.

What are the diagnostic methods of exercise-induced fatigue

First, muscle strength was measured to evaluate fatigue. 1. Back muscle strength and grip strength were measured once in the morning and once in the evening, and the numerical difference was calculated. If it has recovered the next morning, it can be judged as normal. 2. Respiratory muscle endurance was measured 5 times continuously, with 30 seconds interval each time. When tired, the vital capacity decreased step by step.

Secondly, the function of nervous system was measured to judge fatigue. 1. 2. Reaction time fatigue reaction time prolongs. 3. Blood pressure postural reflex: after sitting for 5 minutes, measure the blood pressure at rest, then lie on your back for 3 minutes, and then hold the subject into a sitting position (push the subject's back to sit up passively). Measure the blood pressure immediately, every 30 seconds, for 2 minutes. If the patient completely recovers within 2 minutes, it means that there is no fatigue, more than half of the recovery is mild fatigue, and the patient can not recover to severe fatigue.

After the skin space threshold movement, the skin space threshold (two-point threshold) increases 1.5-2 times compared with the quiet time, which is mild fatigue, and the increase of more than 2 times is severe fatigue. 2. Flash fusion frequency. The subjects sat and looked at the light source of the frequency meter until the light was adjusted to the obvious intermittent flash fusion frequency, that is, the critical flash fusion frequency. The average value of the three measurements was taken. The frequency of flash fusion decreases when fatigue occurs. For example, it will reduce 1.0-3.9hz in mild fatigue, 4.0-7.9hz in moderate fatigue and more than 8Hz in severe fatigue.

matters needing attention

One of the important factors of fatigue in sports is the lack of energy supply and the increased consumption of various nutrients in sports. Timely supplement of energy after sports can eliminate fatigue and make the body recover as soon as possible.