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Relationship Between Erector Spinae Muscle Dimensions and Trunk Length Among Young Adults

Abstract

The study examines the relationship between erector spinae muscle dimensions and trunk length among young adults, with emphasis on determining whether variations in trunk length are associated with differences in selected dimensions of the erector spinae muscle. The erector spinae is a major group of intrinsic back muscles extending along the vertebral column and is important for maintaining upright posture, extending the vertebral column, and stabilizing the trunk. Understanding the relationship between its dimensions and trunk length may provide useful information on the anatomical characteristics of the posterior trunk. The study will determine the dimensions of the erector spinae muscle and assess their relationship with trunk length among young adults. The specific objectives will include measuring selected dimensions of the erector spinae muscle, determining the trunk length of the participants, examining the relationship between the muscle dimensions and trunk length, and identifying whether significant associations exist between the selected anatomical measurements. A cross-sectional descriptive research design will be adopted for the study. An appropriate sample of young adults will be selected using a suitable sampling technique. Erector spinae muscle dimensions will be obtained using standardized anatomical or imaging-based measurement procedures, while trunk length will be measured using standardized anthropometric landmarks and procedures. The collected data will be analyzed using descriptive statistics such as frequency, percentage, mean, and standard deviation, while correlation analysis and appropriate inferential tests will be applied to determine the strength and significance of the observed relationships. The study is expected to reveal measurable relationships between selected erector spinae muscle dimensions and trunk length among the participants. Some muscle measurements may demonstrate positive or negative associations with trunk length, while other dimensions may show weak or statistically non-significant relationships. The findings are expected to provide evidence on the extent to which variations in trunk length correspond with differences in the dimensions of the erector spinae muscle among young adults. The findings will be useful to anatomists, physiotherapists, orthopaedic professionals, radiologists, sports medicine practitioners, and other healthcare professionals involved in the assessment of the spine, trunk, and back musculature. Information on the relationship between erector spinae dimensions and trunk length may support anatomical education, interpretation of imaging findings, physical assessment, rehabilitation planning, and understanding of individual variation in the musculature responsible for spinal posture and stabilization. The study will conclude by determining the relationship between erector spinae muscle dimensions and trunk length among the study population. It is recommended that standardized anatomical, anthropometric, and imaging-based procedures be used when assessing these measurements and that further studies involving larger and more diverse populations be conducted to establish broader reference data on the relationship between trunk dimensions and spinal musculature.

Keywords: Erector spinae, muscle dimensions, trunk length, morphological variation, spinal musculature, intrinsic back muscles, trunk anatomy, vertebral column, muscle morphometry, anthropometry, anatomical measurements, young adults, spinal stabilization, back muscles, clinical anatomy.