Dataset Information

Protein intake in inhabitants with regular exercise is associated with sleep quality: Results of the Shika study.

ABSTRACT:

Study objectives

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.

Methods

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.

Results

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 (p = 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, p = 0.009) in the regular exercise group but not in the non-regular exercise group.Conclusions 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.

SUBMITTER: Suzuki F

PROVIDER: S-EPMC7909647 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Protein intake in inhabitants with regular exercise is associated with sleep quality: Results of the Shika study.

Suzuki Fumihiko F Morita Emi E Miyagi Sakae S Tsujiguchi Hiromasa H Hara Akinori A Nguyen Thao Thi Thu TTT Shimizu Yukari Y Hayashi Koichiro K Suzuki Keita K Kannon Takayuki T Tajima Atsushi A Matsumoto Sumire S Ishihara Asuka A Hori Daisuke D Doki Shotaro S Oi Yuichi Y Sasahara Shinichiro S Satoh Makoto M Matsuzaki Ichiyo I Yanagisawa Masashi M Ikaga Toshiharu T Nakamura Hiroyuki H

PloS one 20210226 2

<h4>Study objectives</h4>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.<h4>Methods</h4>The participants included 378 individuals aged 40 ye ...[more]

PMID: 33635905

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Dataset Information

Protein intake in inhabitants with regular exercise is associated with sleep quality: Results of the Shika study.

Study objectives

Methods

Results

Publications

Protein intake in inhabitants with regular exercise is associated with sleep quality: Results of the Shika study.

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