Exercise is any bodily activity that enhances or maintains physical fitness and overall health and wellness. In the United Kingdom two to four hours of light activity are recommended during working hours. Aerobic exercise is any physical exercise routine children that uses large muscle groups and causes the body to use more oxygen than it would while resting.
Anaerobic exercise, which includes strength and resistance training, can firm, strengthen, and tone muscles, as well as improve bone strength, balance, and coordination. Flexibility exercises stretch and lengthen muscles. Activities such as stretching help to improve joint flexibility and keep muscles limber. Physical exercise can also include training that focuses on accuracy, agility, power, and speed. Sometimes the terms ‘dynamic’ and ‘static’ are used.
Dynamic’ exercises such as steady running, tend to produce a lowering of the diastolic blood pressure during exercise, due to the improved blood flow. Physical exercise is important for maintaining physical fitness and can contribute to maintaining a healthy weight, regulating digestive health, building and maintaining healthy bone density, muscle strength, and joint mobility, promoting physiological well-being, reducing surgical risks, and strengthening the immune system. Individuals can increase fitness following increases in physical activity levels. Increases in muscle size from resistance training is primarily determined by diet and testosterone. Early motor skills and development have also shown to be related to physical activity and performance later in life. Children that have more proficient motor skills early on are more inclined to being physically active, and thus tend to perform well in sports and have better fitness levels. Early motor proficiency has a positive correlation to childhood physical activity and fitness levels, while less proficiency in motor skills results in a tendency to partake in a more sedentary lifestyle.