Different types of exercise

Different types of exercises are

Aerobic (e.g. walking, swimming)
Anaerobic (e.g. sprinting)
Isometric (e.g. lifting weights)
Resistance (hand weights)

1.Aerobic (Endurance) training:

Aerobic exercises are those that require a steady supply of oxygen, to sustain the energy giving powers of the muscles .An aerobic exercise is any activity performed for a minimum of 20 minutes maintaining a heart rate between 70%-80% of maximum heart rate with chief energy sources being oxygen and body fat.

2.Strength or Resistance training

Types of muscle contractions: There are three types of muscle contractions involved in strength training:
Isometric contractions. There is no change in the length of the muscle. For example, pushing against a wall.
Concentric contractions. These movements shorten muscles (for example, the up phase of when the bicep curls up while lifting weights).
Eccentric contractions. These movements lengthen muscles (the down phase as the weights are lowered).

3. Flexibility training (Stretching):

It is now recommended that one should perform stretching exercises for 10 to 12 minutes at least three times a week. The following are some general guidelines:
When stretching, exhale and extend the muscles to the not pain, and hold for 20 to 60 seconds. (Beginners may need to start with a 5 to 10 second stretch)
Breath evenly and constantly while holding the stretch
Inhale when returning to a relaxed position. (Holding ones breath defeats the purpose; it causes muscle contraction and raises blood pressure.)

4.Resistance training

It involves providing some form of resistance to the contracting muscles to stimulate the body for increased strength. Equipment used for resistance training takes multiple forms, including hand weights, pulleys, hydraulic, elastic, rubber, fibreglass, and magnetic equipment.