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:: Volume 17, Issue 3 (1-2018) ::
JOEC 2018, 17(3): 63-72 Back to browse issues page
Anthropometric study of length ratio of index finger to the ring (2D:4D) of left hand in healthy and mentally retarded boys 7 to 10 years old of Sistani folk living in Zabol
Maryam Tehranipour Dr. * , Mostafa VatanshenasMehrbakhsh Mr
Associated professor Azad University
Abstract:   (277 Views)

Introduction: Finger length ratio can be used in the diagnosis of mentally retardation. The length of fingers is one of the parameters used in anthropometry science which measures linear and angular dimensions of the human body. The present study was conducted to evaluate anthropometric length ratio of index and ring fingers in healthy and mentally retarded to help prevention and early detection of the disease and also provide an archive of numerical data to help hand surgery and manufacturing artificial finger or hand related to the people.

Method: In this study 180 healthy and mentally retarded boys aged between 7 to 10 years old were evaluated in 3 groups of 7-8, 8-9 and 9-10 years old. The distance between fingertips until the last knuckles were measured with a digital caliper. Data were processed by EXCEL 2007, SPSS 16 AND Minitab 16 software. Average data and the second to fourth finger length ratio (2D:4D) in the two groups were compared and related charts were calculated and plotted.

Results: The results showed that the average length of the left hand fingers of the healthy boys was more than ones with mental retardation. So at the same ages in the study it could be said that healthy boys morphologically had fingers longer than mentally retarded ones.

Conclusion: This could be used for prediction and early diagnosis of mental retardation.

Keywords: Anthropometry, Length of fingers, Mentally retarded
Full-Text [PDF 233 kb]   (102 Downloads)    
Type of Study: Research | Subject: Special
Received: 2017/01/28 | Accepted: 2017/07/17 | Published: 2017/12/31
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Tehranipour M, VatanshenasMehrbakhsh M. Anthropometric study of length ratio of index finger to the ring (2D:4D) of left hand in healthy and mentally retarded boys 7 to 10 years old of Sistani folk living in Zabol. JOEC. 2018; 17 (3) :63-72
URL: http://joec.ir/article-1-556-en.html


Volume 17, Issue 3 (1-2018) Back to browse issues page
فصلنامه کودکان استثنایی Journal of Exceptional Children
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