Physiotherapists in Sale treat many different conditions including the issues profiled below.

Spinal Posture

Spinal posture can mean two main things, one being the shape and orientation of the curves in the spine and two being the angle that the whole spine is aligned to the vertical. The minimum of muscle activity occurs when the trunk is balanced directly above the pelvis and any deviation from this requires muscle activity to increase to maintain position. As the main moving muscles of the spine are orientated lengthways like the spine itself, when they contract they generate significant compression forces through the spine. Contraction of these muscles in easy standing or sitting still generates forces through the lumbar spine that are twice the body weight above the area.

In sitting it makes little difference to the degree of muscle activity whether the lumbar spine is held arched to some degree (lumbar lordosis) or flexed (bent), the key point is whether the spine is vertically aligned or not. So leaning back with a lordosis or forwards with a flexed spine both generate high muscle forces, whilst sitting upright in either posture does not. Sitting positions all flex the lumbar spine, with the lower two lumbar levels being significantly flexed in these postures, even to the maximum of their movement.

Risk Factors for Low Back Pain

Studies of risk factors have not given clear indication of the risk factors for low back pain although about 70% of disc degeneration seems to be connected with genetic factors and around 60% of back pain overall. There is a strong association between genetic factors and osteoarthritis in the small facet joints which lie each side of the spine. General levels of fitness and the strength of back muscles seem to have little relevance as does differences in leg length. One study which was well conducted shows that a high risk of poor lumbar mobility and a long back exists in young people who work in health work and are encountering heavy work for the first time. This may be because taller people are exposed to higher mechanical forces to the longer limb and spinal levers they use when lifting weights.

Of little relevance seem to be height or weight, flexibility of the lumbar spine or straight leg raising, and fitness seems also to be not connected. X-ray and MRI examination findings have no connection to whether a person might suffer low back pain in the future. Overall the highest risk factor for future back pain is having had back pain in the past.