Internally, these postures stimulate digestion, regulate the kidneys, and alleviate constipation, as well as improve circulation and breathing by developing the strength of the legs and the flexibility of the pelvis and lower back. Through regular practice, standing poses lend strength and mobility to the hips, knees, neck, and shoulders. On a psychological level, standing poses create confidence, enhance willpower, and strengthen character. Seated Postures Generally, these poses are considered calming, as they soothe the nerves, eliminate fatigue, and refresh the brain. They also help regulate blood pressure and assist in recuperation from illness, as well as promote restful sleep.
Some poses are beneficial in that they increase flexibility in the lower back, hips and hamstrings.
The prone poses are done facing the floor, either on the hands and knees or lying on the stomach. They rejuvenate and energize the body and can be especially strengthening for the arms and back. Supine poses are done while lying on the back. For the most part, these poses are more relaxing and restful. Reclining poses serve mainly to stretch the abdomen and increase the mobility of the spine and hips, thus opening the groin and strengthening the back, arms, and legs.