Vinyasa in the context of "Pattabhi Jois"

Yoga as exercise is a physical activity consisting mainly of postures, often connected by flowing sequences, sometimes accompanied by breathing exercises, and frequently ending with relaxation lying down or meditation. Yoga in this form has become familiar across the world, especially in the US and Europe. It is derived from medieval Haṭha yoga, which made use of similar postures, but it is generally simply called "yoga". Academic research has given yoga as exercise a variety of names, including modern postural yoga and transnational anglophone yoga.

Postures were not central in any of the older traditions of yoga; posture practice was revived in the 1920s by yoga gurus including Yogendra and Kuvalayananda, who emphasised its health benefits. The flowing sequences of Surya Namaskar (Salute to the Sun) were pioneered by the Rajah of Aundh, Bhawanrao Shrinivasrao Pant Pratinidhi, in the 1920s. It and many standing poses used in gymnastics were incorporated into yoga by the yoga teacher Krishnamacharya in Mysore from the 1930s to the 1950s. Several of his students went on to found influential schools of yoga: Pattabhi Jois created Ashtanga Vinyasa Yoga, which in turn led to Power Yoga; B. K. S. Iyengar created Iyengar Yoga, and defined a modern set of yoga postures in his 1966 book Light on Yoga; and Indra Devi taught yoga as exercise to many celebrities in Hollywood. Other major schools founded in the 20th century include Bikram Yoga and Sivananda Yoga. Yoga as exercise spread across America and Europe, and then the rest of the world.

The standing asanas are the yoga poses or asanas with one or both feet on the ground, and the body more or less upright. They are among the most distinctive features of modern yoga as exercise. Until the 20th century there were very few of these, the best example being Vrikshasana, Tree Pose. From the time of Krishnamacharya in Mysore, many standing poses have been created. Two major sources of these asanas have been identified: the exercise sequence Surya Namaskar (the salute to the sun); and the gymnastics widely practised in India at the time, based on the prevailing physical culture.

The origin of standing asanas has been controversial since Mark Singleton argued in 2010 that some forms of modern yoga represent a radical reworking of hatha yoga, in particular by adding standing asanas and transitions (vinyasas) between them, and by suppressing most non-postural aspects of yoga, rather than a smooth continuation of ancient traditions. These changes enabled yoga to be practised as a flowing sequence of movements rather than as static poses, and in turn this allowed sessions to focus on aerobic exercise.

Ashtanga yoga (not to be confused with Patanjali's aṣṭāṅgayoga, the eight limbs of yoga) is a style of yoga as exercise popularised by K. Pattabhi Jois during the twentieth century, often promoted as a dynamic form of medieval hatha yoga. Jois claimed to have learnt the system from his teacher Tirumalai Krishnamacharya. The style is energetic, synchronising breath with movements. The individual poses (asanas) are linked by flowing movements called vinyasas.

Jois established his Ashtanga Yoga Research Institute in 1948. The current style of teaching is called "Mysore style", after the city in India where the practice was originally taught. Ashtanga yoga has given rise to various spinoff styles of power yoga.