Mal J Nutr 20(2): 237 - 243, 2014

Measurement of Adductor Pollicis Muscle Thickness in a Healthy Population in Iran and Its Correlation with other Anthropometric Parameters
Ghorabi S, Vahdat Shariatpanahi Z & Amiri Z

ABSTRACT

Introduction: In clinical settings, anthropometric parameters are used as a measure of nutritional assessment. Assessment of the thickness of the adductor pollicis muscle has been reported as an indicator of muscle compartments of the body. The adductor pollicis is the muscle of the hand with two heads that adducts the thumb in bringing it toward the plane of the palm. The adductor pollicis muscle has a well-defined anatomical position and can be directly measured. We determined thickness values of this new parameter and also its correlation with conventional anthropometric parameters.
Methods: A total of 432 apparently healthy volunteers who were grouped by sex and age were assessed for the measurements of mid-arm circumference, triceps skin fold, mid-arm muscle circumference, mid-arm area, mid-arm muscle area and adductor pollicis muscle thickness in both hands.
Results: The average thickness of the adductor pollicis muscle in the dominant and non-dominant hands were 14.55 3.17 and 13.74 3.19 mm in males and 11.24 2.37 and 10.21 2.41 mm in females, and their differences were significant (P<0.001). The average thickness of adductor pollicis muscle was progressively higher in subjects with small, medium, and large frame sizes in both genders (P=0.0001). The APM thickness had a high correlation with the anthropometric variables in subjects (P<0.001).
Conclusion: Measurement of adductor pollicis muscle thickness is simple, fast, non-invasive and easily reproducible, rendering it a useful anthropometric parameter for evaluating nutritional status of individuals.

Keywords: Anthropometry, nutritional assessment, reference values

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