An Observational Study for Correlation of Trunk Extensor Muscle Endurance in Different Body Mass Index Among School Going Children of Surat City

Background: Childhood obesity has important consequences for health and wellbeing both during and childhood and also in later adult life. The rising prevalence of childhood obesity poses a major public health challenge in both developed and developing countries by increasing the burden of chronic noncommunicable diseases. Muscular endurance improves performance of physical activities, improves muscle and bone health with aging, improves body composition, prevents musculoskeletal injuries, and also enhances self-esteem and quality of life. Back muscles are the main structural support for your trunk and strong back muscles provide essential support to the spine, reducing the likelihood of strains, sprains and other injuries that occur during lifting, bending, or twisting movements. Objective: The objective of the study is to find out the correlation of trunk muscular endurance in different body mass index among school going children between 11 and 14 years of age by Biering- Sorenson test of back muscular endurance. Methodology:100 school children between 11 and 14 years from the schools of Surat city were included in the study using purposeful convenient sampling method. Body mass index has been calculated for all the students. Biering Sorenson test of back muscular endurance was conducted on students to measure the trunk muscular endurance. Result: The result was analyzed using SPSS 23 for windows. The statistical tool used was Pearson correlation. The Pearson correlation for BMI and endurance was-0.549, P value which shows that there is a significant correlation at 0.01 levels between BMI and endurance. Also the value shows that the correlation is negative. Conclusion: This study concluded that there is a negative correlation between Body mass index and trunk extensor muscular endurance i.e. as the body mass index increases the trunk extensor muscular endurance decreases in children aged between 11 and 14 years old. Keywords: Obesity, Muscular endurance, BMI, Childhood obesity, Biering- Sorenson test of back muscular endurance.