Study aim: Comparison of clinical and functional effects of static stretching and functional stretching exercises in lower limb muscles of patients with Multiple Sclerosis Design: Randomized,single blinded trial with parallel group design of 22 patients with Multiple sclerosis allocated randomly into two static stretching and functional stretching exercises group Settings and conduct: Pre and post assessments in each group are as follows: ROM assessment, pain intensity, spasticity and functional tests (TUG, T25FWT). For patients in static stretching group; hamistring, quadrceps, hip adductors and plantar flexors muscles will be stretched statically by therapist. For patients in functional stretching group; hamistring, quadrceps, hip adductors and plantar flexors will be stretched by patients actively with guidance of therapist. In both group each stretch will be kept for 30 sec and repeated 3 times with 15 sec rests. In both group after stretching ,active or active assisted movements in the same direction of stretching will be done with 5 repetition. Participants/Inclusion and exclusion criteria: Inclusion criteras: to have multiple sclerosis disease confirmed by specialist; to have spasticity with limb stiffness or contractures of muscles or soft tissue in lower extremity; being able to walk min 25 foot with/without assistive devices. Exclusion criterias: to use wheelchair; to use anti spasticity drugs. Intervention groups: Intervention group 1:Static stretching exercises Intervention group 2:Functional stretching exercises Main outcome variables: pain, range of motion, spasticity, functional tests