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Year : 2021  |  Volume : 5  |  Issue : 2  |  Page : 63-67

Physical activity self-efficacy and its correlation with cardiorespiratory fitness, physical activity levels, and sedentary time among urban school going adolescents: A cross-sectional analysis

1 Department of physiotherapy, Ramaiah Medical College, Bengaluru, Karnataka, India
2 Department of Community Medicine, Ramaiah Medical College, Bengaluru, Karnataka, India

Correspondence Address:
Ms. Rajitha Alva
Department of Physiotherapy, Ramaiah Medical College, Bengaluru, Karnataka
Dr. Sundar Kumar Veluswamy
Department of physiotherapy, Ramaiah Medical College, Bengaluru, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jsip.jsip_10_21

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Background: There is growing concern about reduction in physical activity and increase in sedentary time among children and adolescents. School health programs are being promoted by our government, but the usually suggested behavioral change interventions (BCIs) to improve physical behavior have not been tested in our school population. The BCIs are built on the premise that there is a relationship between constructs such as self-efficacy with physical activity and sedentary time. This study represents the pre-intervention data of an ongoing randomized controlled trial (RCT). Aim: The study aims to assess the relationship between physical activity self-efficacy and cardiorespiratory fitness (CRF), physical activity levels, and sedentary time. Participants: Participants were students of grades 7–9 from three private schools. Methods and Analysis: Following ethical approval, CTRI registration, and school and parent consent, 272 adolescents volunteering to participate in the RCT completed Self-Efficacy for Daily Physical Activity Questionnaire (SEPA), Physical Activity Questionnaire for Adolescents (PAQ-A), and Adolescent Sedentary Activity Questionnaire (ASAQ). CRF was assessed using a 20-m multistage shuttle run test and VO2 max was estimated using Leger’s formula. Descriptive statistics and correlation (Pearson’s and Spearman’s rank) between the variables were done in SPSS v.20. Results: Children (54% boys) had a mean age and body mass index of 12.8±0.9 years and 20.7±5 kg/m2, respectively. Mean of SEPA, ASAQ, and VO2 max were 58.2±23.2, 2662±1024 min, and 41±5.2 mL/kg/min, respectively. Majority (51%) had moderate levels of PA. There was a weak correlation of SEPA with PAQ-A (rs=0.31; P < 0.001), whereas there was no significant correlation of SEPA with other variables. Conclusion: Contrary to studies from western societies, SEPA did not correlate with CRF and sedentary time. There seems to be limitations in the construct of questionnaires in capturing self-efficacy and sedentary behavior in this population.

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