The Effects of Baby Carrier and Sling in Muscle Activation of Trunk, Low Extremity and Foot Pressure

Abstract

Purpose：The Purpose of this study was to compare muscle activation and foot pressure on baby carrier and sling for baby care.Methods：Thirty one women subjects (mean age 23.2 years) participated in four static conditions: unloaded quite standing, carrying an anterior baby carrier, carrying a posterior baby carrier, and sling. The baby carrier and sling were loaded with baby model that filled 7.6kg loads. Surface electromyography was used to measure activity in the internal oblique, T4, L3, L5 paraspinal muscle, vastus medialis, biceps femoris, tibialis anterior, and gastrocnemius for four conditions. And foot pressure was measured by using MatScan system(Tekscan, USA).Results：The activation of Biceps femoris, T4, L3, and L5 paraspinal muscle were significant differences(p .05). Right foot contact area and peak 교신저자：박래준, E-mail: rjpark@daegu.ac.kr논문접수일：2010년03월31일 / 수정접수일：2010년05월09일 / 게재승인일：2010년05월20일