PT Personal Trainers

BODY'S PHYSIOLOGICAL RESPONSE DURING HIGH TEMPERATURE EXERCISE PRACTICE

The human body is constantly producing heat through endogenous sources and receiving heat from outside. The constant temperature of approximately 37ºC remains due to the resulting balance between production and heat loss. When values ​​that differ from the constant temperature are obtained, thermoregulation actions are initiated, either by external or endogenous factors. Regarding thermal exchanges, in the steady state the heat loss must be equal to its production.

The thermal control system has 3 mechanisms to reduce heat: the reduction of heat production with inhibition of chills; the cutaneous vessels undergo an intense dilation throughout the body; and, finally, there is an increase in the speed of heat loss through sweating. For thermal comfort, factors can be taken into account: atmospheric temperature, clothing, metabolism rate, humidity and air speed. The need for precise regulatory mechanisms is fundamental, as excessive elevations in body temperature lead to nervous dysfunction and protein denaturation.

You can even be in danger of life if the outside environment is not conducive to heat loss and the person goes into thermal stress. Thermal exhaustion and heat stroke are life-threatening hyperthermic syndromes and require immediate treatment. These are mainly linked to dehydration. That is why hydration is essential before, during and after physical exercise.

With rising temperatures in summer, it is essential that you keep these factors in mind when exercising: time, place, clothing and hydration.

Seek the help of a specialized personal trainer and train safely. The good weather has arrived, nothing like an individual or group training outdoors!

 

Mafalda Botelho