The Effect of Vertebral Flexibility on Musculoskeletal Complaints in Adolescents in Pontianak City

The development of bones and muscles in adolescents began to halt the moment they reached adulthood, and at this time adolescents would likely to ignore the importance of useful and systematic movements resulting in a loss of flexibility in their muscles and bones. When the muscles and bones experience any stiffness or decrease of flexibility during adolescence, the individual will experience complications such as stiffness, numbness, and pain on their bones, joints and muscles which will result in a decreased productivity and higher risk of injury as they get older. Goal: To identify respondents' characteristics (age, gender, vertebral flexibility and musculoskeletal complaints) and to identify the significance of flexibility on musculoskeletal complaints. Method: Quantitative descriptive research with a sample of 150 quantitative students with a quasi-experimental pre-test post-test approach. Using a modified Schober test to measure vertebrae flexibility and the level of complaints assessed by the Nordic Body Map (NBM). Result: That there are significances of flexibility on musculoskeletal complaints in Muhammadiyah High School students in Pontianak City. There was a decrease in the number of complaints of musculoskeletal pain in the neck, upper arms, back and waist. Conclusion: The more flexible a person's body is, the easier it is to move and the less musculoskeletal complaints there are.