Physical disability results included Oswestry Disability Index ( P = @ , from @ ( @ ) to @ ( @ ) ) and Roland Morris Disability Questionnaire ( P = @ , from @ ( @ ) to @ ( @ ) ) , pain intensity including visual analogue scale ( P = @ , from @ ( @ ) to @ ( @ ) ) , Pain Disability Index ( P = @ , @ ( @ ) to @ ( @ ) ) and pain rating scale ( P = @ , from @ ( @ ) to @ ( @ ) ) , and the core stability test such as active straight leg raise ( P = @ , from @ ( @ ) to @ ( @ ) ) .