Fitness – Key Components of a Healthy Lifestyle

Fitness is a condition of well-being and physical fitness, more specifically, the capacity to do diverse parts of exercises and occupations, without any limitations. Proper fitness in adults involves different components than fitness for kids. Physical fitness includes all the systems, organs, tissues, muscles and bones of the body. The concept of fitness in adults is different from that of fitness for children. Most of the exercises to improve fitness for adults start from abdominal and cardio workouts, with strength training and flexibility and then move on to develop cardiovascular, respiratory and muscular fitness. Physical fitness is normally achieved through adequate rest, proper nutrition, regular physical activity and enough rest.


Muscular endurance is considered to be the most important component in an adult’s fitness. This means being able to continue with intense physical activity for a longer period of time. Muscle fatigue occurs when the muscles are forced to work hard beyond their limits. The muscles become weak, tight and damaged if the intensity of physical activity is too much for the muscles. There is a huge difference between aerobic and anaerobic fitness; it is mainly the intensity of muscle endurance required to achieve maximum results.

Fitness of the skeletal system is involved in maintaining good health. The skeletal system is made up of the leg and hip joints, as well as the bones and joints of the spine, pelvis and ribs. The muscle mass and functional capabilities determine the strength and power of the skeletal system. Proper strength and functional capabilities enable an individual to carry out their everyday activities with ease and prevents them from getting injured. Proper fitness of the skeletal system promotes long-term health and is therefore important for the prevention of back pain and fractures.

Cardiovascular fitness refers to the ability of the heart and lungs to give oxygenated blood to all the cells of the body and to take in carbon dioxide at the same time. It also involves muscular endurance, which refers to the capacity of the body’s muscles to sustain repeated bouts of exercise of differing intensities over a long period of time. Aerobic fitness takes longer to develop than fitness for muscles as it is related to the capacity of the heart and lungs to provide oxygenated blood for muscle contractions. Aerobics exercise is the basis of most fitness programmes and is the best way to increase your aerobic capacity. You need to be persistent with your exercise schedule to see results.

Flexibility fitness means you have a fully developed range of mobility and flexibility. It involves all the various movements of the joints and muscles that allow you to move freely about comfortably and without restriction. This may include flexibility of the ankles, knees and ankles themselves. Flexibility is very important for athletes and has a lot to do with successful performance. It is particularly important to develop full mobility and to prevent injury during athletic activities.

Physical strength physically refers to the ability of the skeletal, muscular, nervous and immune systems to enable one to endure physical challenges and perform at an optimum level. The ability to endure stress is highly dependent on the amount of stamina one has built up. Endurance is an accumulative concept where the increase in muscle strength and resistance to injury helps increase endurance levels. Strength, power and stamina fitness are closely related and should be worked upon consistently to develop an overall level of physical well being.