The effects of differences in sleep quality and quantity on VO2max levels

Abstract

Introduction: Sleep quality and quantity are factors that affect one's cardiorespiratory fitness (CRF). Therefore, this study aims to compare the effects of different sleep quality and quantity on VO 2max levels.Material and methods: 64 participants were involved in this study, and they were divided into two groups based on their sleep quality and quantity. This division was determined by employing sleep pattern questionnaires. Group 1 was comprised of 32 participants with good sleep quality. Generally, they only slept for 6 hours, however, their sleep quality was very good. On the contrary, group 2 consisted of 32 participants with poor sleep quality, irrespective of the fact that their sleep durations were around 7 hours, which is longer than group 1. All participants went through a series of pretest sessions for one week to determine their average heart rate (HR) before and after sleep. Furthermore, they underwent experimental sessions which required them to participate in the cooper 2.4 km test to determine their VO 2max levels.Results: The results show a significant difference in participants' VO 2max levels, with the average in group 1 being higher than in group 2 (F = 5.853) (p = 0.018). This result was obtained from statistical tests using a one-way ANOVA.Conclusions: This study indicates that having good quality sleep for 6 hours plays a crucial role in maintaining and increasing CRF.

Relationship between Physical Fitness and Academic Performance in University Students

“…A likely explanation of the relationship between insomnia and academic achievement could be that poor sleep is associated with a lack of concentration and incapability to effectively operate during the day [ 56 , 57 ], which may have a negative impact on academic performance. Additionally, previous researchers also found that lower VO 2 max rates were associated with worse sleep quality [ 58 ]. The results of the present study agree with this study since a positive relation was found between students in the low academic performance, who showed fewer VO 2 max rates and insomnia problems.…”

Monitoring body mass status during the COVID-19 quarantine in combat and aesthetic sports

“…The correlation between social interaction and the quality of training was explored in a previous study [23]. Nia et al, [23] stated that there was a positive correlation between social interaction and the decrease of cortisol awakening responses (CAR) in aerobic training.…”

“…The correlation between social interaction and the quality of training was explored in a previous study [23]. Nia et al, [23] stated that there was a positive correlation between social interaction and the decrease of cortisol awakening responses (CAR) in aerobic training. In their conclusion, Nia et al [23] explained that the CAR decrease was due to the decrease in stress levels and the increase of satisfaction with aerobic training.…”

“…Nia et al, [23] stated that there was a positive correlation between social interaction and the decrease of cortisol awakening responses (CAR) in aerobic training. In their conclusion, Nia et al [23] explained that the CAR decrease was due to the decrease in stress levels and the increase of satisfaction with aerobic training. Even though that study was not conducted in a pandemic situation, its result was supported by the findings of this study, namely, that combat sports athletes did not have social interaction (partnership) during training and hence experienced a decrease in satisfaction level toward the training.…”