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ISSN: 0860-6161
Advances in Rehabilitation
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vol. 34
Original paper

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

Nia Sri Ramania
Tommy Apriantono
Bagus Winata

Institut Teknologi Bandung
Advances in Rehabilitation, 2020, 34(4), 11–17
Online publish date: 2020/11/25
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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 VO2max 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 2.4km test to determine their VO2max levels.

The results show a significant difference in participants' VO2max 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.

This study indicates that having good quality sleep for 6 hours plays a crucial role in maintaining and increasing CRF.


recovery, student, exercise training, training load, recreational sport

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