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Relationship Between Hamstring Muscle Dimensions and Thigh Length Among Young Adults

Abstract

The study examines the relationship between hamstring muscle dimensions and thigh length among young adults, with emphasis on determining whether variations in thigh length are associated with differences in selected dimensions of the hamstring muscles. The hamstring muscle group, comprising mainly the semitendinosus, semimembranosus, and biceps femoris, occupies the posterior compartment of the thigh and contributes to hip extension, knee flexion, and rotational movements of the leg. Understanding the relationship between hamstring dimensions and thigh length may provide useful information on individual anatomical variation and muscular proportions. The study will determine selected dimensions of the hamstring muscles and assess their relationship with thigh length among young adults. The specific objectives will include measuring selected dimensions of the semitendinosus, semimembranosus, and biceps femoris muscles, determining the thigh length of the participants, comparing the observed measurements, and establishing the strength and direction of the relationships between the muscle dimensions and thigh length. Where applicable, differences between the right and left sides will also be documented. A cross-sectional descriptive research design will be adopted for the study. An appropriate sample of young adult participants will be selected using a suitable sampling technique. Data on the dimensions of the hamstring muscles will be obtained using standardized anatomical or imaging-based assessment procedures, while thigh length will be measured using appropriate anthropometric techniques and standardized anatomical landmarks. The collected data will be analyzed using descriptive statistics such as mean and standard deviation, while correlation and other appropriate inferential tests will be applied to determine the relationships between hamstring muscle dimensions and thigh length. The study is expected to reveal variations in the dimensions of the hamstring muscles among the participants and may demonstrate measurable relationships between selected muscle dimensions and thigh length. Some muscle measurements may show positive associations with thigh length, although the strength of the relationships may vary among the individual hamstring muscles and dimensions assessed. Differences between the right and left sides may also be observed where both limbs are evaluated. The findings are expected to provide information on the anatomical relationship between hamstring muscle dimensions and overall thigh length among young adults. The findings will be useful to anatomists, physiotherapists, orthopaedic surgeons, radiologists, sports medicine practitioners, rehabilitation specialists, and other healthcare professionals involved in lower limb assessment and management. The study may provide useful reference information for understanding the proportional relationship between the hamstring muscles and thigh length and may contribute to anatomical assessment, musculoskeletal imaging, rehabilitation planning, sports-related assessment, and interpretation of lower limb morphology. The study will conclude by determining the relationship between hamstring muscle dimensions and thigh length among the study population. It is recommended that standardized anatomical, anthropometric, and imaging-based procedures be used when assessing hamstring muscle dimensions and thigh measurements, while further studies involving larger and more diverse populations should be conducted to establish broader anatomical reference data and improve understanding of lower limb muscular proportions.

Keywords: Hamstring muscles, muscle dimensions, thigh length, semitendinosus, semimembranosus, biceps femoris, posterior thigh, muscle morphology, anatomical variation, lower limb, knee flexion, hip extension, young adults, anthropometry, musculoskeletal anatomy.