|
The Effect of Eight Weeks of Swimming Training on Blood Nitric Oxide and Lactate Levels in Obese Adolescent Boys
|
Zahra Mosayebi *   , Majid Farhadi , Bahman Hasanvand |
| Department of Physical Education and Sport Sciences, Islamic Azad University, Aligudarz Branch, Aligudarz, Iran , zahramosayebi1988@gmail.com |
|
|
Abstract: (27 Views) |
Background and Aim: Obesity is associated with endothelial dysfunction and impaired energy metabolism. Nitric oxide (NO) is a key marker of vascular health, whereas lactate reflects the status of anaerobic metabolism. This study aimed to investigate the effect of eight weeks of swimming training on blood NO and lactate levels in obese adolescent boys.
Methods: In this quasi-experimental study, 30 obese adolescent boys (aged 13–15 years; body mass index ≥ 30) from Aligudarz were purposefully selected and randomly assigned to experimental (n=15) and control (n=15) groups. The experimental group participated in an eight-week swimming program, three sessions per week. Blood samples were collected 48 hours before the start of the intervention and 48 hours after the final training session to measure baseline NO and lactate levels. Data were analyzed using paired t-tests and analysis of covariance (ANCOVA) in SPSS.
Results: After eight weeks of training, serum nitric oxide levels significantly increased (P=0.001), and blood lactate levels significantly decreased (P=0.001) in the experimental group. No significant changes were observed in the control group.
Conclusion: The findings suggest that swimming training may enhance endothelial function through increased NO levels and improve aerobic metabolism by reducing lactate levels. Thus, swimming can be recommended as an effective exercise modality to improve health indicators in adolescents with obesity. |
|
| Keywords: Swimming training, Nitric oxide, Lactate, Obesity, Adolescents |
|
|
|
Type of Study: Original Article |
Subject:
Marine Medicine
Received: 2025/08/17 | Accepted: 2025/09/2 | Published: 2025/09/1
|
|
|
|
|
|
|
| Send email to the article author |
|
|
|
| Add your comments about this article |
|
|
|
