نوع مقاله : مقاله پژوهشی
نویسندگان
1 کارشناس ارشد فیزیولوژی ورزش
2 مربی بهداشت آموزش و پرورش
3 گروه قلب و عروق، دانشکده پزشکی، بیمارستان حضرت رسول، دانشگاه علوم پزشکی ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and Objectives: The cardiac performance of professional athletes can vary depending on their sport. Among them, rowing (non-weight-bearing) and ice hockey (weight-bearing) are considered. The aim of this study was to compare the cardiac performance variables of athletes from the national women's ice hockey and rowing teams.
Methods: This study is causal-comparative research conducted as a post-test. The statistical population is all athletes from the national women's ice hockey and rowing teams and physical education students, and the statistical sample included 23 women with an average age of 18 to 25 years. Of these, 10 members of the national women's rowing team with an average height of 162.3 ± 1.2 cm, weight of 56.9 ± 0.5 kg, and a body mass index of 21.6 ± 8 kg/m2, 6 members of the national women's ice hockey team with an average height of 164.1 ± 1.4 cm, weight of 59.6 ± 3 kg, and a body mass index of 22.1 ± 1.4 kg/m2, and 7 female students of the Physical Education as active athletes (control group) with an average height of 161.8 ± 1.3 cm, weight of 59.7 ± 0.9 kg, and a body mass index of 22.5 ± 2.8 kg/m2 were selected voluntarily and purposefully. To measure heart function, echocardiography was performed at Hazrat-e Rasoul Hospital in Tehran under the supervision of a cardiologist, and the variables of left ventricular ejection fraction (LVEF), percentage of left ventricular myofibril shortening (GLS), mean maximum systolic velocity (SM), and pressure difference between the right atrium and right ventricle (TRG) were examined.
Findings: The results were extracted using descriptive statistics, mean, graphs, and inferential statistics including Shapiro-Wilk, Levine, and one-way and post hoc Scheffe analysis of variance, with SPSS software, at the level of (P≤0.05). The findings showed that there was no significant difference between the athletes of the national ice hockey team and the national rowing team and physical education students in the variables of left ventricular ejection fraction, mean maximum systolic velocity, and pressure difference between the right atrium and right ventricle. However, a significant difference was observed between the percentage of left ventricular myofibril shortening (p = 0.01) in this variable, and active individual achieved the best results in ice hockey and rowing, respectively. With the Scheffe test, it can be seen that the active group is significantly lower than both the rowing (p = 0.05) and ice hockey (p = 0.016) groups. However, the ice hockey group is better than the rowing group, which indicates that weight-bearing exercises are more effective in improving this variable.
Conclusion: The reason for the significant difference in the percentage of left ventricular myofibril shortening is probably due to the intensity of training and the type of sport they are involved in, considering weight-bearing in ice hockey and non-weight-bearing in rowing.
کلیدواژهها [English]
)