"Fitness is the ability to perform daily tasks vigorously and alertly with energy left over for enjoying leisure activities and meeting emergency demands." ... Footballers need good cardiovascular endurance (stamina) because this "The ability of the heart, lungs, and blood vessels to deliver adequate amounts of oxygen to the cells to meet the demands of prolonged physical activity." ...
The skeleton and muscles work together to provide the framework for the body and allow the body to perform daily activities and function normally. ... Digestion The main function of the digestive system is to take food and fluids in from the external environment and to prepare nutrients, water and electrolytes into components that can be taken into the internal environment of the body, therefore providing energy for cell activity. ...
It is important for everyday activity and emergencies. ... It is important for good posture and injury prevention, leisure and fitness activities. ... For example, machines are safer, easier to use, and require no spotter; free weights simulate real life activities to elicit a more natural coordination and require additional muscles to stabilize. ...
