Iyengar yoga

yoga /yo·ga/ (yo´gah) [Sanskrit] an ancient system of Indian philosophy incorporated into the ayurvedic system of medicine and well-being, whose goal is the attainment of ultimate balance of mind and body, or self-realization. The different systems of yoga all share certain basic principles: control of the body through correct posture and breathing, control of the emotions and mind, and meditation. In the West, yoga is often used for healing and well-being without attention to the larger philosophy.

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ashtanga yoga  a physically demanding style, based in hatha yoga, in which breathing is synchronized with movement between asanas (postures); it encourages profuse sweating to purify and detoxify and it produces strength, flexibility, and stamina.

hatha yoga  a path of yoga based on physical purification and strengthening as a means of self-transformation. It encompasses a system of asanas (postures), designed to promote mental and physical well-being and to allow the mind to focus and become free from distraction for long periods of meditation, along with pranayama (breath control).

Iyengar yoga  a style, based in hatha yoga, that emphasizes correct body alignment in the asanas (postures) and holding the asanas for extended periods of time, using props to help achieve and support them.

kundalini yoga  a style, based in hatha yoga, whose purpose is controlled release of latent kundalini energy.

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Iyengar yoga,

a style of yoga that emphasizes correct body alignment in the asanas (postures) and holding the asanas for extended periods of time. It also uses props, such as wooden blocks and belts, to help achieve and support the asanas.