Physical Activity, Sedentary Lifestyle, and Lumbar Flexibility in Young Adults: A Cross-Sectional Study

Abstract

Introduction: Lumbar flexibility is crucial in maintaining good posture, supporting daily activities, and preventing musculoskeletal disorders. However, the rising prevalence of sedentary lifestyles among students, characterized by prolonged sitting and minimal physical activity, may negatively impact lumbar flexibility. This study analyzes the relationship between physical activity and sedentary lifestyle on lumbar flexibility in young adults.

Methods: This research is a cross-sectional study involving a sample of 154 individuals selected based on inclusion criteria. Data were collected using the Physical Activity Questionnaire for Adolescents (PAQ-A), Sedentary Behavior Questionnaire (SBQ), and Modified Schober Test. Data analysis was performed using Spearman correlation tests.

Results: The analysis of the relationship between physical activity and lumbar flexibility showed a correlation coefficient of r = 0.036 with a p-value of 0.661, indicating a very weak relationship. Meanwhile, the relationship between sedentary lifestyle and lumbar flexibility had a correlation coefficient of r = -0.123 with a p-value of 0.130, indicating a weak negative correlation.

Conclusion: Physical activity and a sedentary lifestyle are related to lumbar flexibility, although the strength of this relationship is very weak. These results suggest further investigation to understand other factors contributing to lumbar flexibility in young adults.

Keywords: Physical Activity, Sedentary Lifestyle, Lumbar Flexibility