The SBL is responsible for holding us upright. Our SBL mediates our posture. Small adhesions, tensions and injuries to the line can cause back pain, hamstring pain or tightness, or poor balance (the body can literally be pulled back on the feet so that most of the body weight is in the heels). A very tight or constricted SBL can lead to increased lumbar lordosis and an anterior pelvic tilt (increased low-back curve – the swayback posture), hyperextension of the knees, plantar fasciitis, and bone spurs. Weakness in the SBL can lead to an increased curve in the thoracic spine. Many of us westerners have a fairly weak back line, because of sitting in chairs, well… basically, since we were old enough to hold ourselves upright in a chair. This presents itself as the slouching posture. Difficulty sitting upright to meditate for even a few minutes may be a sign of weakness or tightness (or commonly, both) in the SBL.

Trevor Aung Than is AirYoga’s resident physiotherapist and movement specialist. Trevor graduated from Curtin University in 2001 and owned his own physiotherapy clinic between 2005-09. In 2009 Trevor took the position as head physiotherapist and trainer for the Cirque du Soleil show, ZAiA, in Macau, China. This was Trevor’s first exposure to the circus world and he was hooked from day one.

Trevor has 11 years’ experience in the health and fitness industry and has a special passion for functional training, Pilates and movement conditioning. Trevor also runs Circus Conditioning, specializing in small group fitness classes and movement therapy.

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