Aim: Group-based training through Crossfit has recently exploded in popularity. When the effects of Crossfit trainings on many basic component are considered, the aim of this study is to investigate the effects of high-intensity functional trainings on anthropometric and physiological characteristics of sedentary individuals. Methods: Their age averages are 23.62±5.39 (year), height averages are 177±0.06 (cm) and body weight averages are 79.88±12.14 (kg). Crossfit training system was applied during highintensity functional exercise planning at four days a week, for twelve weeks. Body weight, body fat percentage, body mass index (BMI), blood pressure, resting heart rate, hand grip strength, back strength, leg strength measurements were taken from the participants. Statistical analyses were done with SPSS 15.00 statistical package program. Results: In pre-test and post-test measurements, it was found that there are statistically significant differences between the participants' body fat percentage, systolic blood pressure, diastolic blood pressure, left and right-hand grip, back strength and leg strength values (p<0.05). Conclusion: As a result, it can be said that these high-intensity exercises that were applied has positive contribution to anthropometric and physiological characteristics in sedanteries.