![]() Įarly motor skills and development is also related to physical activity and performance later in life. There is evidence that exercising in middle age may lead to better physical ability later in life. This genetic variation in improvement from training is one of the key physiological differences between elite athletes and the larger population. Increases in muscle size from resistance training are primarily determined by diet and testosterone. Most people can increase fitness by increasing physical activity levels. Overall, physical inactivity causes 9% of premature mortality worldwide. A lack of physical activity causes approximately 6% of the burden of disease from coronary heart disease, 7% of type 2 diabetes, 10% of breast cancer and 10% of colon cancer worldwide. For example, climbing stairs 10 minutes, vacuuming 15 minutes, gardening 20 minutes, running 20 minutes, and walking or bicycling for transportation 25 minutes on a daily basis would together achieve about 3000 MET minutes a week. ![]() The majority of the benefits from exercise are achieved with around 3500 metabolic equivalent (MET) minutes per week, with diminishing returns at higher levels of activity. Moderate levels of exercise have been correlated with preventing aging by reducing inflammatory potential. People who participate in moderate to high levels of physical exercise have a lower mortality rate compared to individuals who by comparison are not physically active. Some studies indicate that exercise may increase life expectancy and the overall quality of life. Physical exercise is important for maintaining physical fitness and can contribute to maintaining a healthy weight, regulating the digestive system, building and maintaining healthy bone density, muscle strength, and joint mobility, promoting physiological well-being, reducing surgical risks, and strengthening the immune system. Conversely, static exercise (such as weight-lifting) can cause the systolic pressure to rise significantly, albeit transiently, during the performance of the exercise. 'Dynamic' exercises such as steady running, tend to produce a lowering of the diastolic blood pressure during exercise, due to the improved blood flow. Types of exercise can also be classified as dynamic or static. Physical exercise can also include training that focuses on accuracy, agility, power, and speed. The goal is to improve the range of motion which can reduce the chance of injury. ![]() Activities such as stretching help to improve joint flexibility and keep muscles limber.
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