Research article - (2016)15, 704 - 714
Effects of a High Protein and Omega-3-Enriched Diet with or Without Creatine Supplementation on Markers of Soreness and Inflammation During 5 Consecutive Days of High Volume Resistance Exercise in Females
Sara Hayward1, Colin D. Wilborn1,2,, Lem W. Taylor2, Stacie L. Urbina2, Jordan J. Outlaw2, Cliffa A. Foster2, Michael D. Roberts3,4
1Department of Physical Therapy, Graduate School, and Sport Sciences Department, University of Mary Hardin-Baylor, Belton, TX, USA
2Human Performance Laboratory, Exercise and Sport Sciences Department, University of Mary Hardin-Baylor, Belton, TX, USA
3Molecular and Applied Sciences Laboratory, School of Kinesiology, Auburn University, Auburn, AL, USA
4Department of Physiology and Cellular Biology, Edward Via College of Osteopathic Medicine – Auburn Campus, Auburn, AL, USA

Colin D. Wilborn
✉ The University of Mary Hardin-Baylor, Human Performance Laboratory, UMHB Box 8010, Belton, Texas 76513, USA
Email: cwilborn@umhb.edu
Received: 13-07-2016 -- Accepted: 14-11-2016
Published (online): 01-12-2016

ABSTRACT

We examined if two different dietary interventions affected markers of soreness and inflammation over a 5-day high-volume resistance training protocol in females that resistance-trained 8 weeks prior. Twenty-eight females (age: 20 ± 1 yr; body mass: 63.5 ± 1.6 kg, height: 1.67 ± 0.01 m) completed 4 weeks of pre-training (weeks 1-4) followed by a subsequent 4-week training period along with a dietary intervention (weeks 5-8). Dietary interventions from weeks 5-8 included: a) no intervention (CTL, n = 10) b) a higher-protein diet supplemented with hydrolyzed whey protein (50 g/d) and omega-3 fatty acids (900 mg/d) (DI, n = 8), and c) the DI condition as well as creatine monohydrate (5 g/d) (DI+C, n = 10). During week 9, participants resistance-trained for five consecutive days whereby 8 sets of 10 target repetitions at 70% one repetition maximum (1RM) were performed each day for bench press, back squat, deadlift, and hip-thrusters with the intent of eliciting muscle soreness and inflammation. Prior to and 24 h following each of the 5 bouts muscle soreness (DOMS) was assessed via questionnaire, and fasting blood was obtained and analyzed for serum cortisol, interleukin-6 (IL-6) and C-reactive protein (CRP). No group*time (G*T) or time effects were observed for training volume over the 5-d overreaching protocol. Furthermore, no group*time (G*T) or time effects were observed for serum cortisol, IL-6 or CRP, and DOMS actually decreased in all groups 24 h following the fifth day training bout. This study demonstrates that, regardless of protein, omega-3 fatty acid and/or creatine supplementation, 5 days of consecutive resistance training does not alter perceived muscle soreness, training volume, and/or markers of inflammation in novice resistance-trained females.

Key words: Whey protein, creatine monohydrate, muscle soreness, inflammation

Key Points
  • We examined if two different dietary interventions (higher protein and omega-3 supplementation, or higher protein and omega-3 supplementation with creatine supplementation) affected muscle soreness and inflammation markers over a 5-day high-volume resistance training protocol in females that resistance-trained 8 weeks prior.
  • Neither dietary intervention affected training volume, muscle soreness and inflammation markers over the 5-d consecutive training period.
  • More research is needed in order to determine if the dietary interventions employed herein affects athletes which may experience overreaching-like symptoms over a training season.








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