The purpose of this investigation was to examine the effects of Orangetheory fitness training, yogic practices, and their combined application on psychological stress among obese school students. Sixty obese students aged between 12 and 14 years from schools in and around Thoothukudi, Tamil Nadu, were selected as participants. The subjects were randomly assigned into four groups consisting of fifteen students each. Group I participated in Orangetheory fitness training, Group II performed yogic practices, Group III underwent a combined programme of Orangetheory training and yoga, while Group IV served as the control group without any specific intervention. Psychological stress was considered the dependent variable and was measured using the standardized Every and Grinodo Psychological Stress Scale. The experimental programmes were conducted for twelve weeks with five sessions per week. Data were collected before the commencement of the training and immediately after the completion of the intervention period. The collected data were analysed using the dependent t-test and Analysis of Covariance (ANCOVA). Whenever the adjusted post-test F-ratio was found significant, Scheffe’s post-hoc test was applied to determine the paired mean differences. The level of significance was fixed at 0.05. The findings revealed significant differences among the experimental and control groups, and the combined training programme produced greater stress reduction compared with the individual training methods.