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Journals / Spor ve Bilim Dergisi / 2026 / Cilt: 4 Sayı: 1

The Effect of Whey Protein Supplementation on Various Performance Parameters in Tennis Players

Tenisçilerde Whey Protein Tüketiminin Bazı Performans Parametrelerine Etkisi

Buket Çalışkan(SİNOP ÜNİVERSİTESİ, LİSANSÜSTÜ EĞİTİM ENSTİTÜSÜ)0009-0000-4290-2123
Ahmet Mor(SİNOP ÜNİVERSİTESİ, SPOR BİLİMLERİ FAKÜLTESİ)0000-0002-1181-1111
Pages
1–17
Publication Date
2026-01-30
DOI
—
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AI Summary & Key Takeaways

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

Overall, whey protein supplementation was found to enhance ball speed and reaction time performance while reducing RPE values in tennis players.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:This study aimed to examine the impact of whey protein supplementation on various performance parameters in tennis players.
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Key Findings & Data:Twelve trained male tennis players, aged between 18 and 25, participated in the research.
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Conclusion & Impact:Overall, whey protein supplementation was found to enhance ball speed and reaction time performance while reducing RPE values in tennis players.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Whey protein · Top hızı · Reaksiyon zamanı

Abstract

This study aimed to examine the impact of whey protein supplementation on various performance parameters in tennis players. Twelve trained male tennis players, aged between 18 and 25, participated in the research. On the first day, participants underwent a familiarization session, followed by a randomized, double-blind, crossover, and counterbalanced experimental design involving three separate test days. On each test day, the athletes were assigned to one of three groups and consumed the assigned supplement 30 minutes prior to performance testing. The supplements administered were whey protein (30 g mixed with 300 ml water), placebo (calorie-free sweetener with 300 ml water), and a control (300 ml water only). Differences between conditions were analyzed using repeated-measures ANOVA. No statistically significant differences were observed across conditions in vertical jump, anaerobic power, agility, handgrip strength, or visual analogue scale (VAS) scores (p>0.05). However, significant differences were found in ball speed and ratings of perceived exertion (RPE) (p 0.05). Furthermore, no significant differences were reported between groups in gastrointestinal symptoms following supplementation (p>0.05). Overall, whey protein supplementation was found to enhance ball speed and reaction time performance while reducing RPE values in tennis players. The absence of gastrointestinal symptoms supports whey protein as a beneficial nutritional supplement for performance enhancement in athletes. Additionally, the findings suggest that some of the performance improvements observed may be attributed to a placebo effect.

Özet

Bu çalışmada tenisçilerde whey protein tüketiminin bazı performans parametrelerine etkisini incelemek amaçlanmıştır. Çalışmaya 18-25 yaş aralığında olan, antrenmanlı 12 erkek tenisçi katılmıştır. Çalışmada, tenisçilere ilk gün çalışmanın uyum seansı uygulanmış ve daha sonra sporcular randomize, çift kör, çapraz-döngülü ve karşıt dengeli deneysel dizaynı ile toplam 3 test gününe katılmışlardır. Tenisçiler test günlerinde 3 gruba ayrılmış ve testler başlamadan 30 dakika önce kendilerine verilen besin takviyelerini tüketmişlerdir. Farklı test günlerinde performans testlerinden önce sporculara whey protein (30 g+300 ml su), plasebo (kalorisiz tatlandırıcı+300 ml su) ve kontrol (300 ml su) takviyeleri verilmiştir. Değişkenler arası farklılık tekrarlı-ölçümler ANOVA ile analiz edilmiştir. Tenisçilere ait performans parametreleri karşılaştırıldığında, dikey sıçrama, anaerobik güç, çeviklik, el kavrama kuvveti ve görsel analog skala (GAS) değerleri arasında istatistiksel olarak anlamlı bir farklılık yoktur (p>0,05). Buna karşılık, top hızı ve algılanan zorluk derecesi (AZD) değerleri arasında istatistiksel olarak anlamlılık vardır (p 0,05). Çalışmada, besin desteği kullanımı sonrasında gastrointestinal semptom durumlarında gruplar arasında istatistiksel olarak anlamlı farklılık bulunmamıştır (p>0,05). Çalışmada, whey protein tüketiminin tenisçilerde top hızı ve reaksiyon zamanı parametrelerinde performans artışı sağladığı ve AZD değerlerini de düşürdüğü tespit edilmiştir. Ayrıca, whey protein kullanımının gastrointestinal problemde oluşturmaması, sporcu diyetlerinde kullanımının performans artışı için iyi bir besin desteği olduğunu göstermektedir. Diğer yandan araştırmamızda, tenisçilerde plasebo etkisinden kaynaklı bir performans artışı olduğu da görülmektedir.

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Cite This Article

Çalışkan, B., Mor, A. (2026). The Effect of Whey Protein Supplementation on Various Performance Parameters in Tennis Players. Spor ve Bilim Dergisi, Cilt: 4 Sayı: 1, 1–17. https://ajindex.com/articles/1646591

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