Trunk Muscle Endurance

This study will examine a 12-week online core stability program for postpartum women, where participants will complete supervised sessions three times per week and will be compared with an education-only group. The intervention group will participate in supervised, real-time sessions via a video-conferencing platform, three times per week for 12 weeks. Exercises combine isometric and dynamic core stability tasks, progressing in difficulty over time. Dynamic postural control will be assessed using the lower quarter Y-Balance Test (YBT-LQ), while trunk endurance will be measured using the flexor endurance, extensor endurance, and side bridge tests.

Adolescence is a critical period for spinal growth, and progression of thoracic hyperkyphosis may lead to pain, weak trunk muscles, sleep disturbances, and reduced quality of life. This study aims to investigate the effects of three-dimensional exercise program based on the Schroth Method on trunk muscle endurance, thoracic kyphosis angle, pain, sleep quality and quality of life in adolescents aged 12-18 years with hyperkyphosis.