Effects of Hatha and Vinaysa Yoga on Stress Levels in a Female College-Aged Population

abstract: The purpose of this study was to determine the impact of yoga intensity on stress in a population of college-aged females. Stress has been shown to negatively impact health both physically and mentally, therefore it is imperative that there is a way to combat these negative health effects. Participants included females between the ages of 18-25 who had been participating in physical activity 3-5 days per week (n=11). The subjects participated in two sessions of yoga, one of lower intensity, Hatha, and one of higher intensity, Vinyasa. Stress was measured by a Stress Indicators Questionnaire, which was modified to fit the aim of the study. It was filled out by the subjects pre and post each session, resulting in four questionnaires per subject. The yoga classes were displayed through a program called YogaGlo. The data was scored and analyzed with a modified scoring guideline based off of the questionnaire guidelines and with the use of Excel. The results showed that there was a statistically significant effect of both low (p value= 0.02) and high (p value= 0.01) intensity yoga on stress. There was not a statistically significant effect between the different yoga intensities on stress (p value= 0.3). Limitations of our study include a self-selective population, no control group, and demand characteristics. The results from this study should be used for further research on yoga and various aspects of mental health, such as anxiety and depression, with a female population of all ages, longer yoga sessions, and a longitudinal study format