International Journal of Public Health Science (IJPHS) Vol. 12, No. 2, June 2023, pp. 882~889 ISSN: 2252-8806, DOI: 10.11591/ijphs.v12i2.22370  882 Journal homepage: http://ijphs.iaescore.com Body weight training intervention towards weight loss of adolescent with obesity problem during COVID-19 pandemic Nourmayansa Vidya Anggraini, Diah Ratnawati, Ritanti Ritanti, Mustika Widiyastuti Department of Nursing, Faculty of Health Science, Universitas Pembangunan Nasional Veteran Jakarta, Depok, Indonesia Article Info ABSTRACT Article history: Received Aug 13, 2022 Revised Feb 20, 2023 Accepted Mar 11, 2023 The COVID-19 pandemic has brought attention to the rising issue of sedentary behavior, which can lead to obesity. Obesity affects individuals of all ages, including children, adults, and the elderly. Obesity can have negative effects on adolescent body image. Several interventions, such as body weight training, have been shown to help obese adolescents lose weight. This paper proposes an investigation into the effectiveness of body weight training interventions as implemented by community nurses for weight loss in obese adolescents. The intervention involved three sessions per week over the course of four weeks and was administered to several obese adolescents. The results indicated that there was a weight loss of 3.7 kg for the first participant and 3.8 kg for the second participant over the four-week period. Statistical analysis using a paired t-test showed a p-value less than 0.005, indicating a significant effect of the body weight training intervention on weight loss in obese adolescents. It is hoped that community nurses can utilize body weight training as a useful intervention in helping obese adolescents achieve a healthy weight. Keywords: Adolescents Body weight training Community nurses Obesity This is an open access article under the CC BY-SA license. Corresponding Author: Nourmayansa Vidya Anggraini Department of Nursing, Faculty of Health Science, Universitas Pembangunan Nasional Veteran Jakarta Depok, Indonesia Email: nourmayansa@upnvj.ac.id 1. INTRODUCTION Obesity is a serious worldwide health problem as it can lead to metabolic syndrome and death. It carries a significant risk of morbidity, leading to increased mortality [1]–[5]. Overweight is a term that includes both overweight and obesity [6]–[10]. Adolescent obesity is a complex multifactorial disease with a combination of environmental, behavioral, psychosocial, biological, cultural, and genetic determinants. It remains a global public health issue that presents a major challenge to chronic disease prevention and health into adulthood. While schools have a rich opportunity to improve youth health and tackle obesity, they face barriers to fulfilling this function. Obesity can affect all aspects of children's lives, including psychological, cardiovascular health, and overall physical health. It creates a public health problem for children and adolescents. Several physiological systems play an essential role in maintaining a balance between energy intake and overall energy consumption, as well as maintaining a stable body weight. Obesity affects adults, teens, and children [11]–[14]. Obesity is caused by several factors, including genetics, metabolic processes, lifestyle choices, eating habits, and physical activity. One of the causes of obesity is an energy imbalance, especially in adolescents who are going through puberty or growing up. Clinically, obesity is generally characterized by a body mass index (BMI) >25 kg/m2 in individuals with body obesity [15]–[18]. Obesity has a significant impact on the mentality of adolescents. The bad impacts of mental obesity on adolescents include becoming