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Abstract
Background: Hamstring tightness is a common condition found in symptomatic and asymptomatic subjects. Tightness of this muscle can play a role in low back pain, postural deficits, lumber spine disorder and sport related injuries. Purpose of this study: was to investigate the relation between hamstring tightness, sacropelvic morphology and balance in normal subjects. Subjects and Methods: Thirty normal subjects with their mean age, weight, height and BMI were (19.6±0.9 years, 65.4±5.4kg, 173.8±8.5cm and 21.7±1.7kg/m2) respectively of both genders participated in this study. Subjects were classified into two equal groups group A: was consisted of fifteen subjects. They were without hamstring tightness. group B: was consisted of fifteen subjects. They were with hamstring tightness. Methods: The tightness was assessed with active knee extension test and sacropelvic morphology was assessed from x-ray image by using surgimap software. Results: showed that there was a significant difference between hamstring flexibility and sacropelvic balance and a significant difference between hamstring flexibility and sacropelvic morphology as p value was (< 0.0001 and 0.0487) respectively Conclusion: this study has been designed to help in setting a rehabilitation program for postural deficits, low back pain, balance and gait abnormalities