2021年2月26日
Protein intake in inhabitants with regular exercise is associated with sleep quality: Results of the Shika study
PLOS ONE
- 巻
- 16
- 号
- 2
- 開始ページ
- e0247926
- 終了ページ
- e0247926
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1371/journal.pone.0247926
- 出版者・発行元
- Public Library of Science (PLoS)
<sec id="sec001">
<title>Study objectives</title>
Although associations between sleep quality and environmental factors and nutrient intake have been reported, interactions between these factors have not been elucidated in detail. Therefore, this cross-sectional study examined the effects of regular exercise and nutrient intake on sleep quality using the Pittsburgh Sleep Quality Index (PSQI), which is the most frequently used index for sleep evaluation.
</sec>
<sec id="sec002">
<title>Methods</title>
The participants included 378 individuals aged 40 years or older living in Shika Town, Ishikawa Prefecture. Of these individuals, 185 met the inclusion criteria. The participants completed a self-administered questionnaire assessing lifestyle habits and frequency and duration of exercise, the PSQI, and the brief-type self-administered diet history questionnaire (BDHQ) on nutrient intake.
</sec>
<sec id="sec003">
<title>Results</title>
A two-way analysis of covariance on regular exercise and PSQI scores indicated that protein intake (17.13% of energy) was significantly higher in the regular exercise and PSQI ≤10 groups than in the non-regular exercise or PSQI ≥11 groups (<italic>p</italic> = 0.002). In a multiple logistic regression analysis with PSQI scores (≤10 and ≥11), protein intake was a significant independent variable in any of the models adjusted for confounding factors such as age, sex, body mass index, current smoker, and current drinker (OR: 1.357, 95% CI: 1.081, 1.704, <italic>p</italic> = 0.009) in the regular exercise group but not in the non-regular exercise group.<bold>Conclusions</bold>
We identified a positive relationship between sleep quality and protein intake in the regular exercise group. These findings suggest that regular exercise at least twice a week for 30 minutes or longer combined with high protein intake contributes to good sleep quality.
</sec>
<title>Study objectives</title>
Although associations between sleep quality and environmental factors and nutrient intake have been reported, interactions between these factors have not been elucidated in detail. Therefore, this cross-sectional study examined the effects of regular exercise and nutrient intake on sleep quality using the Pittsburgh Sleep Quality Index (PSQI), which is the most frequently used index for sleep evaluation.
</sec>
<sec id="sec002">
<title>Methods</title>
The participants included 378 individuals aged 40 years or older living in Shika Town, Ishikawa Prefecture. Of these individuals, 185 met the inclusion criteria. The participants completed a self-administered questionnaire assessing lifestyle habits and frequency and duration of exercise, the PSQI, and the brief-type self-administered diet history questionnaire (BDHQ) on nutrient intake.
</sec>
<sec id="sec003">
<title>Results</title>
A two-way analysis of covariance on regular exercise and PSQI scores indicated that protein intake (17.13% of energy) was significantly higher in the regular exercise and PSQI ≤10 groups than in the non-regular exercise or PSQI ≥11 groups (<italic>p</italic> = 0.002). In a multiple logistic regression analysis with PSQI scores (≤10 and ≥11), protein intake was a significant independent variable in any of the models adjusted for confounding factors such as age, sex, body mass index, current smoker, and current drinker (OR: 1.357, 95% CI: 1.081, 1.704, <italic>p</italic> = 0.009) in the regular exercise group but not in the non-regular exercise group.<bold>Conclusions</bold>
We identified a positive relationship between sleep quality and protein intake in the regular exercise group. These findings suggest that regular exercise at least twice a week for 30 minutes or longer combined with high protein intake contributes to good sleep quality.
</sec>
- リンク情報
- ID情報
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- DOI : 10.1371/journal.pone.0247926
- eISSN : 1932-6203