Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine ( 2017 ) 16 , 60 - 68

Research article
The Effects of a Sports Nutrition Education Intervention on Nutritional Status, Sport Nutrition Knowledge, Body Composition, and Performance during Off Season Training in NCAA Division I Baseball Players
Fabrício Eduardo Rossi1,2, Andrew Landreth1, Stacey Beam1, Taylor Jones3, Layne Norton4, Jason Michael Cholewa1, 
Author Information
1 Department of Kinesiology, Coastal Carolina University, Conway SC, USA
2 Institute of Bioscience, Department of Physical Education, University Estadual Paulista, Rio Claro, São Paulo, Brazil
3 Strength, Speed, and Conditioning, Coastal Carolina University, Conway SC, USA
4 BioLayne LLC., Lutz, FL, USA

Jason Michael Cholewa
✉ Department of Kinesiology, Coastal Carolina University, PO Box 261954, Conway, SC 29528, Williams-Brice 101A, 843-349-2041, USA
Email: jcholewa@coastal.edu
Publish Date
Received: 25-08-2016
Accepted: 10-01-2017
Published (online): 01-03-2017
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ABSTRACT

This study investigated the effects of a sport nutrition education intervention (SNEI) on dietary intake, knowledge, body composition, and performance in NCAA Division I baseball players. Resistance trained NCAA Division I baseball players (82.4 ± 8.2 kg; 1.83 ± 0.06 m; 13.7 ± 5 % body fat) participated in the study during 12 weeks of off-season training. Fifteen players volunteered for SNEI while 15 players matched for position served as controls (C) for body composition and performance. The nutrition intervention group (NI) received a 90 min SNEI encompassing energy intake (Kcal), carbohydrate (CHO), protein (PRO), fat, food sources, and hydration. Sport nutrition knowledge questionnaires were administered to NI pre and post. Nutritional status was determined by three-day dietary logs administered to NI pre and post. Body composition and performance (5-10-5 shuttle test, vertical jump, broad jump, 1 RM squat) were measured pre and post for C and NI. Knowledge increased in NI. Pro and fat, but not CHO intake increased in NI. FM decreased pre to post in NI (11.5 ± 4.8 vs. 10.5 ± 5.4 kg) but not C (11.3 ± 4.7 vs. 11.9 ± 4.5 kg). FFM increased pre to post with no differences between groups. The 5-10-5 shuttle times decreased significantly more in NI (4.58 ± 0.15 vs. 4.43 ± 0.13 sec) compared to C (4.56 ± 0.18 vs. 4.50 ± 0.16 sec). Jump and squat performance increased pre to post with no differences between groups. Our findings indicate that an off season SNEI is effective at improving sport nutrition knowledge and some, but not all, nutrient intakes and performance measures in Division I baseball players.

Key words: periodization, collegiate nutrition, lean body mass


           Key Points
  • Sport nutrition education intervention increased nutritional knowledge and nutritional status.
  • Sport nutrition education intervention reduced body fat percentage, total fat mass, 5-10-5 shuttle times, and trended towards greater increases in lean mass compared to controls.
  • Both groups increased strength and jump ability similarly.
 
 


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