Sudip Datta Banik
Background: Several reports are available on human body dimensions (BD), their interrelationships with height, sex difference and sex estimation from different populations. Objectives: To understand interrelationships between linear BD and height in adults and estimation of sex. Methods: A sample of 20-39 years old Nepali-speaking 268 adults (158 men, 110 women) was selected from Naxalbari in Darjeeling, West Bengal, India. Anthropometric measurements included height, sitting height (SH), upper arm length (UAL), forearm length (FAL), combined length of forearm and hand (CLFH), total arm lengths (TAL) (left side), hands and feet (bilateral length and breadth). Sub-ischial leg length (SLL) and indices (hands and feet), relative proportion, multiplication factors (MF) of linear BD for height were calculated. Sectioning point (SP) values [(mean value in men + mean value in women)/2] were calculated for anthropometric variables to estimate sex. Results: The SH and SLL each shared almost 50% of height. Relative proportions of BD to height were: TAL (men 45.39%, women 46.36%), CLFH (men 25.88%, women 26.58%), UAL (men 19.48%, women 19.82%) and FAL (men 14.83%, women 15.47%). Foot length (FL) and hand length (HL) was approximately 15% and 11% of height in men and women respectively. Foot breadth (FB) and hand breadth (HB) were approximately 6% and 5% of height respectively. The approximate values of MF of BD for height were calculated for TAL (2), CLFH (4), UAL (5), FAL and foot length (7), HL (9), FB (17), and HB (20). Based on SP value, sex estimation was done accurately (%) for SH (82.10%), FL (bilateral 81.72%), HL and FB (left 79.10%), FB (right 77.99%), HB (right 77.61%), TAL, HL (right) and HB (left) (75.37%), SLL (74.25%), CLFH (70.15%), UAL (66.67%) and FAL (62.70%). Conclusion: The MF and SP values were effective in understanding relative proportions of BD to height and sex estimation respectively.
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