Trunk Extension Endurance Among Physical Therapy Students

College students from physical therapy department will be assigned into four groups. Participants will be tested for trunk extensors endurance and will be given endurance training program to do at home for 6 to 8 weeks. Spinal mobility and lower extremity mobility will be measured. Isokinetic outcome measures for extension and flexion at two different speeds will also be measured at baseline, after 6 and 8 weeks.