Journals / İstanbul Gelişim Üniversitesi Sağlık Bilimleri Dergisi / 2026 / Sayı: 30

Associations of Diet Quality and Body Composition with Sleep Quality in Professional Athletes: A Cross-Sectional Study

Profesyonel Sporcularda Diyet Kalitesi ve Vücut Kompozisyonunun Uyku Kalitesi ile İlişkisi: Kesitsel Bir Çalışma

Göksu Şen Polat(IZMIR TINAZTEPE UNIVERSITY)0009-0000-9766-5604
Merve Yılmaz(İZMİR TINAZTEPE ÜNİVERSİTESİ)0000-0003-0730-8908
Pages
695–710
Publication Date
2026-08-31
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

No significant association was found between overall diet quality and sleep quality (p=0.723).

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: Sleep quality is vital for recovery and performance in elite sports.
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Key Findings & Data:Method: In this cross-sectional study of 89 professional athletes (football, volleyball, basketball), body composition was determined via the Jackson-Pollock 7-site skinfold method.
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Conclusion & Impact:No significant association was found between overall diet quality and sleep quality (p=0.723).
🔬Design:Araştırma Makalesi
📍Scope:2015 Verileri
⚙️Variables:Diyet kalitesi · vücut kompozisyonu · profesyonel sporcular

Abstract

Aim: Sleep quality is vital for recovery and performance in elite sports. This study investigated the associations between body composition, diet quality, and sleep quality in professional athletes within the context of biological rhythms . Method: In this cross-sectional study of 89 professional athletes (football, volleyball, basketball), body composition was determined via the Jackson-Pollock 7-site skinfold method. Diet quality and sleep quality were assessed using the Healthy Eating Index-2015 (HEI-2015) and Pittsburgh Sleep Quality Index (PSQI), respectively. Results: Most athletes (83.2%) had moderate diet quality and 94.4% reported good sleep quality. No significant association was found between overall diet quality and sleep quality (p=0.723). However, athletes with poor sleep quality had significantly higher body fat percentages (p=0.003). Diet quality significantly differed by training duration (p<0.05) and nutrition knowledge (p=0.034). Sleep quality was significantly associated with smoking and sleep-support supplement use (p<0.05). A weak but significant positive correlation existed between PSQI scores and body fat percentage (r=0.293, p<0.05). Conclusion: Overall diet quality was not directly associated with sleep quality among professional athletes. However, sleep quality was significantly related to body fat percentage as well as several training and lifestyle characteristics. These findings highlight the importance of addressing sleep quality and body composition together when developing nutrition and lifestyle strategies aimed at improving recovery and performance in elite athletes.

Özet

Amaç: Uyku kalitesi, elit sporlarda iyileşme ve performans için hayati öneme sahiptir. Bu çalışma, biyolojik ritimler bağlamında profesyonel sporcularda vücut kompozisyonu, beslenme kalitesi ve uyku kalitesi arasındaki ilişkileri araştırmıştır. Yöntem: 89 profesyonel sporcunun (futbol, ​​voleybol, basketbol) katıldığı bu kesitsel çalışmada, vücut kompozisyonu Jackson-Pollock 7 bölgeli deri kıvrımı yöntemiyle belirlenmiştir. Beslenme kalitesi ve uyku kalitesi sırasıyla Sağlıklı Beslenme Endeksi-2015 (HEI-2015) ve Pittsburgh Uyku Kalitesi Endeksi (PSQI) kullanılarak değerlendirilmiştir. İstatistiksel güç (1-β) 0,99'dur. Bulgular: Sporcuların çoğu (%83,2) orta düzeyde beslenme kalitesine sahipken, %94,4'ü iyi uyku kalitesine sahip olduğunu bildirmiştir. Genel beslenme kalitesi ile uyku kalitesi arasında anlamlı bir ilişki bulunmamıştır (p=0,723). Bununla birlikte, uyku kalitesi düşük olan sporcuların vücut yağ yüzdeleri anlamlı derecede daha yüksek bulunmuştur (p=0,003). Diyet kalitesi, antrenman süresi ve beslenme bilgisi (p<0,05) ile anlamlı derecede farklılık göstermiştir. Uyku kalitesi, sigara içme ve uyku destekleyici takviye kullanımı ile anlamlı derecede ilişkili olarak bulunmuştur (p<0,05). PSQI puanları ile vücut yağ yüzdesi arasında zayıf ancak anlamlı pozitif bir korelasyon gösterilmiştir (r=0,293, p<0,05). Sonuç: Genel olarak diyet kalitesi profesyonel sporcularda uyku kalitesi ile doğrudan ilişkili bulunmamıştır. Bununla birlikte, uyku kalitesi; vücut yağ yüzdesi ile bazı antrenman ve yaşam tarzı özellikleriyle anlamlı düzeyde ilişkili bulunmuştur. Bu bulgular, elit sporcularda performansın ve toparlanmanın optimize edilmesine yönelik müdahalelerde, beslenme yaklaşımının yanı sıra uyku kalitesi ve vücut kompozisyonunun birlikte değerlendirilmesinin önemini ortaya koymaktadır.

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Cite This Article

Polat, G. Ş., Yılmaz, M. (2026). Associations of Diet Quality and Body Composition with Sleep Quality in Professional Athletes: A Cross-Sectional Study. İstanbul Gelişim Üniversitesi Sağlık Bilimleri Dergisi, Sayı: 30, 695–710. https://doi.org/10.38079/igusabder.1956723

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