1. Haskvitz, E. M., & Hanten, W. P. (1986). Blood pressure response to inversion tractionm. Physical Therapy, 66, 1361–1364.
2. Pellecchia, G. L. (1994). Lumbar traction: A review of the literature. Journal of Orthopaedic and Sports Physical Therapy, 20(5), 262–267.
3. Kim, M. S., & Kang, S. M. (2012). The effect analysis on middle-aged women’s facial wrinkles improvement of shaking neck exercise and collagen. Diet J Kor Soc Cosm, 18(6), 1223–1234.
4. Sheffield, F. J. (1964). Adaptation of table for lumbar traction. Archives of Physical Medicine and Rehabilitation, 45, 469–472.
5. Raut, A. A., & Bagde, S. T. (2014). Inversion therapy & zero gravity concept: For all back Pain problems. IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE), 1, 18–22.