Other References
Other sources which cite early use of "Sun Salutations" are A Short History of Aryan Medical Science from 1896, which claims that in India "there are various kinds of physical exercise indoors and outdoors. But some of the Hindoos set aside a portion of their daily worship for making salutations to the Sun by prostrations. This method of adoration affords them so much muscular activity that it takes to some extent the place of physical exercise".
Early English publications record some ancient methods of sun salutation; however, the do not seem to be related to the modern Sūrya Namaskāra as seen in Yoga practice today. In "A Catalogue raisonnée of oriental manuscripts", noted that a short book with 71 leaves with "Tricha calpa vidhi" from "Aditya Puranam" was preserved. He describes the vidhi as "Modes of rendering homage to Sun, with praise and spells; the object being health or delivery from disease". He further notes the presence of Arghya Pradana, Surya Stotaram, Aditya dvadasa namam - 12 names of the Sun according to the monthly signs of zodiac, Surya Narayana cavacham, Saurashtacshari mantram, and many other elaborate rituals as the part of the vidhi. In Page 148 of the same book he describes a shorter version called "Laghu tricha kalpa vidhi".
Historically it is widely believed in the state of Maharashtra that Shivaji Maharaj, Sage Samarth Ramdas and the Marathas have performed Sūrya Namaskāra as a physical exercise to develop able bodies.Template:Page Needed This is not surprising since 'vyayama' (physical exercise in Sanskrit) traditionally has been influenced by spirituality. Many physical practices have ingrained spiritual values in them. In addition spiritual training is considered as a part of physical training from ancient times in India.
Read more about this topic: Surya Namaskara, History