جستجوی مقالات مرتبط با کلیدواژه « Vo2 max » در نشریات گروه « تربیت بدنی »

The global COVID-19 pandemic has significantly influenced athletes worldwide.

This research aims to investigate the effects of a 4-week aerobic exercise program on athletic performance in both recovered and uninfected COVID-19 athletes during the post-COVID-19 period.

Fourteen male student-athletes aged 18 - 25 years from Imam Khomeini International University participated in this study. The participants comprised 7 recovered COVID-19 athletes and 7 athletes with no prior COVID-19 infection. The study employed a pre-test/post-test design conducted in 2 phases. During the pre and post-test phases, participants underwent baseline assessments of athletic performance, including maximum oxygen consumption (VO2 max) and anaerobic power. Subsequently, the participants engaged in a 4-week aerobic exercise intervention. Pre- and post-intervention outcomes within groups were compared using paired t-tests, while independent t-tests were utilized for comparisons between the recovered COVID-19 athlete group and the uninfected athlete group.

Independent t-tests demonstrated significant increases in VO2 max and peak power after 4 weeks of aerobic exercise in both the recovered COVID-19 group (P = 0.001, P = 0.0001) and the uninfected COVID-19 group (P = 0.012, P = 0.001). However, dependent t-tests revealed a significant difference between the recovered COVID-19 group and the uninfected COVID-19 group in the post-test of VO2 max (P = 0.044) and peak power (P = 0.001).

This study indicates that a 4-week aerobic exercise regimen can improve athletic performance in both recovered and uninfected COVID-19 athletes. However, recovered COVID-19 athletes exhibited a notably slower rate of improvement compared to their uninfected counterparts. Therefore, it is recommended that, in addition to aerobic exercise, recovered athletes integrate supplementary strategies to optimize their return-to-sport timeline and maximize performance recovery. 

Today, many people in society choose running as a general or special activity in order to improve their physical and physiological capabilities. Choosing the right shoes in endurance running can have a great impact on the athlete's performance. Physiological energy economy and maximal oxygen consumption are of particular importance not only among runners but among all athletes. Therefore, the purpose of this research is to compare VO2 Max values and physiological energy economy when using double density spike shoes compared to simple spike shoes. Current study is semi experimental. The statistical sample of the current study includes 30 runners from Ardabil city, who were organized in a group, and the parameters of physiological energy economy, maximum oxygen consumption, resting heart rate, systolic blood pressure and 1600 meters running record were measured during running with both double density spiked shoes and regular spiked shoes. Also, to analyze the data, the analysis of variance test with repeated measurements was used at a significance level of P=0.05. The results of the present study showed not statistically significant difference in the values of maximum oxygen consumption, heart rate and 1600 meters running record with two simple and double density shoes after performing 1600 meters running test. However, the systolic blood pressure values while running with double density shoes were less different than the control shoes (P<0.001). It seems that the use of double density shoes does not have much effect on maximum oxygen consumption, heart rate and physiological energy economy. Therefore, in order to receive more confidence and make a more decisive conclusion, there is a need to conduct more research.