Sportif Bakış: Spor ve Eğitim Bilimleri Dergisi

69-77

Authors: Ozan SEVER, Fatih KIYICI, Gökhan ATASEVER

In the study, the acute response of the 2000m maximal aerobic test on the biathletes living at different altitudes was analyzed. A total of 67 athletes (Mean age = 14,69 ± 1,22, Mean BMI = 19.60 ± 2.29) consisting of boys and girls represent the sample of the study who were tested during the qualification process of Turkey national team. The athletes divided into two groups. Thirty-two of the athletes living above the altitude of 1500m (considered as the altitude where physiological adaptation occurs) coded as the high-altitude group, and thirty-five living below 1500m coded as the low altitude group. A shuttle-run test was applied to measure the aerobic power of the athletes. During the test, the heart rates were monitored continuously. The athletes living above 1500m showed higher VO2max and total lap score in the shuttle-run test compared to the athletes living below 1500m. But this difference was found to be statistically insignificant. The Living altitude – VO2max – Total Laps variables had positive moderate correlation each other (r = 0,363, r = 0,355). As the altitude increases, the endurance score increases. When each stage of the shuttle-run test examined, it was seen that those who live at low altitudes tend to give up the shuttle-run test earlier, although there was no difference in the mean heart rates between groups. Findings showed that the physiological response of the biathletes who had similar training history was influenced by the altitude they live on. In this respect, altitude adaptation in biathletes is thought to affect the score in competitions and national team selections.

101-110

Authors: Yusuf ALPER, Zekine PÜNDÜK, Fahri AKÇAKOYUN, Zekeriya GÖKTAŞ

The aim of this study was to investigate the effect of the nutrition and physical exercise habits change on overweight in Balikesir Science High School students. Eighty-five volunteered students (46 girls and 39 boys), participated in this study. The participant’s nutrition habits and physical characteristics were analyzed twice in three years, 1st when participants were 15 years old (grade 9) 2nd when they were 18 years old (grade 12). The study results showed increase in body weight, height and body mass index (BMI) in grade 12 compared to grade 9, but no increase in waist/hip ratio. The participation in physical activity and physical activity duration was declined in grade 12 (p=0.000, p=0.004 respectively). When the scale mean scores evaluated it was found that, the nutrition habit risk score increased except question 2 and 5. In addition, boys more participated in physical activity than girls (p=0.001) when they were in grade 9, but in grade 12 this physical activity participation level more decreased in girls compared to boys (p=0.04). In conclusion, this study results indicated that in grade 12 or 18 years old bad nutrition habits increased and physical exercise participation level decreased with school and exam factors.