|[pic] |[pic] | |When you begin exercise, your muscles undergo change, these are ‘acute responses in the working muscles’. | |These changes are – increased blood flow (to the muscles) | |increased muscle fibre and motor unit recruitment | |increased number and power of muscle contractions | |increased muscle temperature | |Decreased fuel stores (ATP, PC, Glycogen and Triglycerides. | |Increased diffusion of oxygen into the muscle cells. | EXTRA READING………….. |Macmillan |All of the functions performed by the muscular system are performed by 3 types of muscles; smooth,
Water serves a number of essential functions to keep us all going: * A vital nutrient to the life of every cell, acts first as a building material. * It regulates our internal body temperature by sweating and respiration * The carbohydrates and proteins that our bodies use as food are metabolized and transported by water in the bloodstream; * It assists in flushing waste mainly through urination * acts as a shock absorber for brain, spinal cord, and fetus * forms saliva * lubricates joints According to Dr. Jeffrey Utz, Neuroscience, pediatrics, Allegheny University, different people have different percentages of their bodies made up of water. Babies have
Type II B geared to generate ATP by anaerobic metabolic processes so not able to supply skeletal muscle fibers continuously with sufficient ATP. Fatigue easily (More likely to accumulate lactic acid), split ATP at a fast rate and have a fast contraction velocity. Such fibres are found in large numbers in the muscles of the arms. The anaerobic energy pathway,
“The muscles are no different. When muscles work, they require energy so that they can contract. The unique feature about muscular contraction is that the chemical energy is transformed into mechanical energy – movement.” (http://www.nsbri.org/humanphysspace/focus5/epenergetics.html/20/11/2011/) Although extended
Assignment 1 Christian A. Fortaleza Exercise Physiology Professor J. Johnson 22 April 12 Introduction Physical activity or exercise is the most important aspect of healthy living. It reduces the risk of heart disease, stroke, certain cancers, and high blood pressure. Further, physical activity helps maintain body weight, tone the muscles, strengthens the joints and bones, and increases self-esteem. When undergoing physical activity one must consider the effects of various intensities of work to the heart. The heart is a complex organ in which every beat of supplies the body with the life giving oxygenated blood.
Most all of our main organs depend on water to function properly. According to Wiley, 2006, in order for our kidneys to function properly, drinking plenty of water is
This, mixed with the dynamic, quick bursts of movement is what separates plyometrics from weight-training and strength-building. Furthermore, with the increased speed and strength, stability in the joints and tendons connected to the targeted muscle structure increases as well (Chimera, N. J., et al, 2004).The plyometric system also trains the brain along with the muscles. Each drill, exercise, and stretch has the targeted muscle load and contracted repeatedly at a rapid pace; these movements are attuned with the brain in order to develop
The body’s metabolic rate is increased as its need for energy is increased, and the body becomes more resourceful. Muscle tone and muscle mass increase after the muscles tear and reconstruct themselves. In addition to improved muscle tone and muscle mass, there are other effects of exercise for physical disease control and/or prevention. A person’s entire body system, including all the ***** 2 body parts, is in continuous movement when exercising. The cardiovascular (heart), circulatory, and pulmonary (lungs) systems probably benefit the most from routinely
| Muscular System | |The Muscles: Each muscle is an organ, comprised of skeletal __muscle__ tissue, several ___connective____ tissue coverings, __nervous_ tissue to cause it | |to contract, and __blood___ to nourish it. | | Connective Tissue coverings: | |The muscle has several dense connective coverings.
Lastly, the hypothalamus regulates changes inside the body during exercise. In conclusion, there are many factors involved with exercise and motivation. Intrinsic and extrinsic motivation encourage a person to want to exercise either by internal or external reinforcers. A person’s heredity and environment also play a role in the motivation to exercise. The largest factors that most people do not consider are the amazing split second actions that different parts of our brain perform so that we are able to