The Key To Understanding Exercise Intervention

In the world of exercise science, the terms "stress" and "adaptation" are often thrown around, yet the underlying mechanism remain a mystery to many. If you are a fitness enthusiast or a coach, understand the science behind the concept of body physiological changes is crucial in driving significant change in your health and performance.

At the heart of these processes, the two most important physiological regulations are Homeostasis and Allostasis.

1. Homeostasis

The original term of homeostasis was coined by Claude Bernard (1870) stating that the necessity of the body maintaining a stable internal environment so that vital processes. So what does it means ?

Stable Internal Environment:

  • Temperature Regulation: keeping the body temperature around 37C (98.6F)

  • pH Balance: maintaining blood pH close to 7.4

  • Glucose Concentration: regulating blood sugar levels for energy usage

  • Oxygen and Carbon Dioxide Levels: ensuring adequate O2 supply and removal of CO2

Vital Processes:

  • Thermoregulation: the body naturally response of sweat (hot) and shiver (cold) to ensure proper regulation of body temperature.

  • Metabolism: chemical reactions in the body including digestion and nutrients delivery.

  • Cellular Respiration: conversion of glucose and oxygen into energy (ATP)

Fluctuation and pertubation refer to the changes in the external environment that disrupt the internal environment such as:

  • Temperature: extreme cold or heat

  • Dietary Changes: nutrient intake affecting glucose level and electrolyte balance.

  • Stress: triggers hormonal responses to influence metabolism and immune function

  • Infection or Deseases: pathogen that trigger immune responses that affect homeostasis

  • Physical Activity: exercise intensity that impact energy demand and waste production

The body system collectively monitor vital processes running optimally in response to the external and internal challenges. Homeostasis maintaining a static, or constant, internal environment (Guyton, 1982).

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