Fifteen patients will receive Pilates exercises

Fifteen patients will receives eccentric training

Pilates based training exercises group will perform Pilates divided into two levels (beginner and intermediate). Each level will last for six sessions.

VAS for measuring pain severity

The Trunk impairment scale (TIS) The static subscale investigates: (1) the ability of the subject to maintain a sitting position with feet supported; (2) the ability to maintain a sitting position while the legs are passively crossed, and (3) the ability to maintain a sitting position when the subject crosses the legs actively. The dynamic subscale contains items on lateral flexion of the trunk and unilateral lifting of the hip. To assess the coordination of the trunk, the subject is asked to rotate the upper or lower part of his or her trunk 6 times, initiating the movements either from the shoulder girdle or from the pelvic girdle, respectively. For each item, a 2-, 3- or 4- point ordinal scale is used. On the static and dynamic sitting balance and coordination subscales the maximal scores that can be attained are 7, 10 and 6 points. Therefore, TIS ranges between 0 for a minimal performance to 23 for a perfect performance.

Handheld dynamometer measuring isometric trunk muscle strength