Joints may be improved by exercise as they respond to mechanical stresses. Anything which puts stress on the bones causes it to get thicker and increases in weight because of the stress and are therefore able to take more stress and pain. Impact exercise promotes bone growth and strengthens our bones and joints. If we subject our bones to weight bearing activities or we exert stress on our muscles, things we don't normally do, our bones will adjust to be able to cope with the weight and stress. As the weight increases, our bone adjust even more to sustain the greater weight and they adjust by getting bigger and stronger.
Along with being able to lift heavier objects, and working longer without feeling tired, there are other healthy benefits that a simple muscular workout can bring to our bodies, and those include, resistance to injuries, higher muscular flexibility and support more stress, increase in energy levels, better health and prevention of diseases. It also very important to have a nutrition diet, and enough rest. Decrease of injury plays a key role in a daily basis. Muscles are able to adapt to physical, and environmental stressors that cause them to develop a trauma from sudden, or repetitive movements. Especially for athletes, due to the high levels of stress they put on their muscles from intense training.
Unit 2: The Physiology of Fitness Assignment: No 1 Task 1.a Task1b Musculoskeletal response Increased blood supply The short term effects of exercise on your muscles include an increase in temperature and metabolic activity. Result: - greater demand for oxygen in blood supply through capillary dilation. Increase in muscle pliability When you warm up your muscles during activity makes them more pliable and reduces the risk of injury. Increased range of movement The short-term effect of exercise are demonstrated by changes within the joint. Movement of joints stimulates the secretion of synovial fluid.
Staying physically active and exercising regularly can help prevent or delay many diseases and disabilities (a) exercise can make Cardiorespiratory system more efficient. Regular exercise makes the heart stronger and the lungs fitter, enabling the cardiovascular system to deliver more oxygen to the body with every heartbeat and the pulmonary system to increase the maximum amount of oxygen that the lungs can take in. Exercise lowers blood pressure, decreases the levels of total and low density lipoprotein (LDL) cholesterol (the bad cholesterol), and increases the level of high density lipoprotein (HDL) cholesterol (the good cholesterol) These beneficial effects in turn decrease the risk of heart attack, stroke, and coronary artery disease. (B) there is a general decline muscle in skeletal muscle strength and bulk in old age which relates to a reduction in both size and number of muscle fiber. Exercise can significantly increase Muscle strength and as well as the fast twitch fiber, which improve the speed of response and quality of muscle activity, and help prevent injuries and falls.
This decrease in muscle breakdown and lower recovery time permits more frequent training sessions at higher intensity and for longer periods of time. Another benefit is the increased aggressiveness they are believed to simulate, also noted as enhanced athletic performance. This increased aggressiveness may drive athletes to train harder and longer without the usual fatigue (Entine, 2000). Other positive effects of using steroids are increases in; storage of muscle glycogen, blood volume, a general increase of the immune system, and the reduction of body fat percentage. The effects are maintained as long as the athlete continues the steroid
Increased Joint Range of Movement Exercise increases the production of synovial fluid which keeps our joints lubricated and makes them supple (bend and move easily and gracefully). Synovial fluid production increases the range of movement available at your joints in the short term. Often, after long periods of immobility (long periods of time not moving), our joints “dry out” stiffen up and lose some of their movement range. Exercise increases the range of movement available at our joints as more lubricating synovial fluid is released into them. Mobility exercises such as arm circles and knee bends keep our joints supple by ensuring a steady supply of synovial fluid.
Cardiovascular system: The heart pumps the blood around the whole body in order to carry oxygen in which the individual will be able to breather. Older adults may develop narrow arteries and other blood vessels; this is because many fats have increased inside the body in which increases the cholesterol levels and so the walls of the arteries are being narrowed, this may gradually become blocked if not taken care of. This is known as âatherosclerosisâ, it defines âatheroâ which conveys the fatty/unhealthy deposits, and âsclerosisâ conveys the arteries becoming much hardened. This process may consequently end up in an increase of the blood pressure which puts the individual at risk of stroke; this is when the blood is unable to reach the brain and may cause a heart attack. The heart is used the hardest in this life stage as the arteries harden the heart needs to pump harder and faster to ensure that the individual is still alive, this however, is considered a big risk for the individual as the blood pressure may increase to such that the individual may have a heart attack.
Introduction: The purpose of this lab was to determine the effects of increasing load on muscle recruitment, compare muscle recruitment between concentric and eccentric muscle movement and the effect of muscle fatigue on muscle recruitment during submaximal exercise. Hypothesis: The higher the weight increased the greater the motor unit recruitment would be. The motor unit recruitment would be greatest during the concentric phase rather than the eccentric phase. The more fatigued the muscle becomes the motor unit recruitment would be significantly less. Methods: Two surface electrodes were placed parallel on the belly of the bicep and one electrode on the bony process of the elbow on a Subject.
Warming up also drives oxygen to your muscles to prepare them for a higher demand of respiration. When warming up you should do similar exercises to the work out. If you are running then a good warm up is walking, because it accustoms the body to such a movement.
It is taken as an injection, pill or topical treatments. Anabolic steroids are popular because their use helps athletes to recover quicker from hard workouts or allows them to workout more frequently without overtraining. This is a more popular choice for a more serious and intense athlete. It reduces muscle damage, but builds muscle at the same time. Sometimes athletes experience an agressiveness as a side effect and the athletes tend to like the agressive