To be fit, that was most everybody wants to achieve while they are living and enjoying with their life.  This are some types of fitness that people needs to develop.

Stamina - This is a combination of cardio-respiratory endurance and muscular endurance.

Cardio-respiratory endurance - this is the ability of the heart and lungs to some get oxygen to the muscles, the reason for this is that the muscles can perform for a long time. This type of fitness can be developed by exercising in your training zone with just at lease 3 times per week for a duration of at least 20 minutes.

Muscular endurance -this is the ability of a muscle or group of muscles to perform for a long time. This can be developed only through weight lifting and some exercises such as press ups, sit-ups etc. TThe only important point to note about developing muscular endurance is that you must exercise with high reps and low weight to get the desired effect.

Strength - This is the greatest force that a muscle can produce in pushing, pulling, lifting or striking actions. This type of fitness is usually developed by  just following a weight lifting program. An important point to remember is to exercise with just a low reps and high weight.

Speed - This is how muscles in the joint can move quickly. This can also be apply to the movement of the whole body, or to the movement of a part of the body, specially the arm.

Power - it is the ability of the body to produce an explosive effort. It was created with the combination of strength and speed.

Flexibility or suppleness - stretching muscles, that is its ability, so that a joint has a large range of movement. Flexibility can be affected by injury, muscle, tendons, ligaments and skin.