For correct alignment use props including
blocks, blankets, and chairs to assist correct alignment, as here in
Utthita Vasisthasana. Iyengar Yoga was created by
B. K. S. Iyengar, a pupil of the yoga pioneer
Tirumalai Krishnamacharya, and described in his authoritative 1966 book
Light on Yoga. The scholar of religion
Andrea Jain observes that the book "prescribed a thoroughly individualistic system of postural yoga", one that was "rigorous and disciplined", For example, in Iyengar Yoga,
Sarvangasana, shoulder stand, can be practised under suitable supervision with the shoulders on a bolster, the buttocks supported on the seat of a chair and a blanket, and the legs resting on the top of the chair's back.
For ease in practice s can support the body, such as under the knees in
Butterfly (Baddha Konasana). The students ignored her, thinking that "ease in their practice ... meant easy and that was wimpy. Not enough challenge, boring, too slow." Clark cites the founder of Insight Yoga,
Sarah Powers, as writing that "when the bones feel supported, the muscles can relax". Students may be afraid, he notes, of an inverted pose such as
Shirshasana (yoga headstand); by practising against a wall, the student can learn to master the fear of falling, and can then continue practising there to develop stability, right alignment, and refined balance. Its main function is "stickiness", The mat may equally mark out a territory in a crowded class, or create a ritual space as it is unrolled to begin a session and rolled up at the end.
When movement is restricted Alice Christensen's Easy Does It Yoga, first described in 1979, uses "chair exercises", alongside others on floor or bed, and in later editions also in swimming pools, for older practitioners with restricted movement. Lakshmi Voelker-Binder created an approach named Chair Yoga in 1982, on seeing that one of her pupils, aged only in her thirties, was unable to do floor poses because of
arthritis.
Yoga as therapy is the use of asanas as a gentle form of
exercise and relaxation, applied specifically with the intention of improving health. This may involve
meditation, imagery,
breath work (pranayama) and
music alongside the exercise. A 2013
systematic review found beneficial effects of yoga on
low back pain.
For aerial yoga class practising Flying Pigeon Pose, the aerial variant of
Rajakapotasana Aerial yoga, a
yoga hybrid, requires the use of a silk hammock with straps attached by
carabiners to support chains, to permit practitioners to perform variants of yoga poses without weight on their hands or feet. Difficult mat-based yoga postures may prove easier to perform through aerial yoga, while the hammock's movement adds variety to the aerial workout. == See also ==