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The aim of this research was to determine the effects of physical activity levels of teacher candidates on the sub-dimensions of health-related quality of life. In the research among the quantitative research methods, relational survey model was used. A total of 90 teacher candidates participated in this research. The International Physical Activity Questionnaire-Short Form (IPAQ-SF) and the 36-Item Short Form Health Survey (SF-36) were used in this study. In the data analysis, "percentage, frequencies, standard deviation, mean, Product-Moment Correlation coefficients and Multiple regression" were used. According to the results, role functioning/emotional, pain and general health sub-dimensions are important predictors on physical activity levels. However, physical functioning, emotional well-being, vitality, social functioning, role functioning/physical, sub-dimensions have not an important impact on physical activity levels statistically. As a conclusion, participation in physical activity can be said to have a negative effect on emotional problems and pain, and a positive effect on general health status.

The aim of this research was to investigate the effect of vibration applications on muscle strength and balance. As the subjects to the research, nineteen male sport science students (age: 21.45±2.16 years, height: 177.55±7.24 cm, body mass: 71.62±11.02 kg) voluntarily participated in the study. The students were exposed to vibration in squat exercise position before they were exposed to vibration at 25Hz, 50Hz frequency and control (no-vibration) on three different application days. Before and after the vibration exposure, jump tests and balance tests were administered right after the 5th, 10th and 15th min in the wake of the vibration. A statistically significant difference was found in active and squat jump heights administered following the 25Hz and 50 Hz frequency applications (p[less than or equal to]0.05). No significant differences were found in the jump heights in control group (p>0.05). While there was no significant difference found in balance tests performed after 25Hz and 50Hz vibration applications (p>0.05), a significant difference was found after the control application (p[less than or equal to]0.05). As a result, there was an increase in jump heights following the acute vibration application however, no change was seen in balance scores. Practicing acute vibration applications can be recommended to increase jump height especially before the competitions and applications.