external factors influencing homeostasis - exercise
Exercise on the Muscular System
Using the aerobic and anaerobic systems, the Muscular System has the ability to improve the strength, power, speed and endurance of the muscles the force is applied on. Depending on the specified exercise, muscles contract creating eccentric, concentric, or isometric contractions to perform output of movements.
The chemical adenosine triphosphate (ATP) is response for the muscle contractions produced. After a few repetitions for a particular exercise, the stores of ATP are depleted, and more oxygen (O2) is required for continual production of ATP for optimum contraction output (Ashe-Edmunds, - ). Initially, glycogen is burned in replacement of ATP, however, the amount of ATP/ or glycogen used for muscular contraction varies depending of the intensity of the exercise. During short, high-intensity exercise, the muscles use glycogen as an energy source for contraction.
Muscles also contain fibers to help them contract. However, there are two types of fibers contained within the skeletal muscles that are relevant to specific contraction rates; those being slow twitch fibers, to perform powerful, continuous movements, and fast twitch fibers, to perform quick, high intensity movements.
The Medulla is the part of the brain that adapts the body for the physical exercise it is contending in. When the muscles contract, the medulla receives a message from the skeletal and cardiac muscles. In response, the medulla releases two chemicals called epinephrine and norepinephrine. These chemicals travel along through the system to the heart sinus nodes, and homeostasis is maintained by traveling through this pathway. When the muscles stop contracting and the body has stopped exercising, a new chemical called acetylcholine is sent to the heart and skeletal muscles via the nervous pathways to slow down the contraction rate of the muscles, and heart rate, and back to a state of maintaining equilibrium. Without the release of these chemicals, the adaptions that the body has made for the exercise would continue unnecessarily and put excess stress and strain on the vital organs and muscles to function at such an extensive rate, and would heavily veer from equilibrium.
Using the aerobic and anaerobic systems, the Muscular System has the ability to improve the strength, power, speed and endurance of the muscles the force is applied on. Depending on the specified exercise, muscles contract creating eccentric, concentric, or isometric contractions to perform output of movements.
The chemical adenosine triphosphate (ATP) is response for the muscle contractions produced. After a few repetitions for a particular exercise, the stores of ATP are depleted, and more oxygen (O2) is required for continual production of ATP for optimum contraction output (Ashe-Edmunds, - ). Initially, glycogen is burned in replacement of ATP, however, the amount of ATP/ or glycogen used for muscular contraction varies depending of the intensity of the exercise. During short, high-intensity exercise, the muscles use glycogen as an energy source for contraction.
Muscles also contain fibers to help them contract. However, there are two types of fibers contained within the skeletal muscles that are relevant to specific contraction rates; those being slow twitch fibers, to perform powerful, continuous movements, and fast twitch fibers, to perform quick, high intensity movements.
The Medulla is the part of the brain that adapts the body for the physical exercise it is contending in. When the muscles contract, the medulla receives a message from the skeletal and cardiac muscles. In response, the medulla releases two chemicals called epinephrine and norepinephrine. These chemicals travel along through the system to the heart sinus nodes, and homeostasis is maintained by traveling through this pathway. When the muscles stop contracting and the body has stopped exercising, a new chemical called acetylcholine is sent to the heart and skeletal muscles via the nervous pathways to slow down the contraction rate of the muscles, and heart rate, and back to a state of maintaining equilibrium. Without the release of these chemicals, the adaptions that the body has made for the exercise would continue unnecessarily and put excess stress and strain on the vital organs and muscles to function at such an extensive rate, and would heavily veer from equilibrium.