ArticleEuropean journal of applied physiology2007
Protein requirements in male adolescent soccer players.
Article in European journal of applied physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 68 citations in OpenAlex.
- Macronutrient Intake in Soccer Players-A Meta-Analysis.Nutrients · 2019Pooled it
- Effects of the Six Pillars of Lifestyle Medicine on the Performance of High School Athletes: A Systematic Review.American journal of lifestyle medicine · 2025Article
- The Effect of an 8-Week Vegan Diet on the Nutritional Status and Performance of Semi-Professional Soccer Players-Results of the VegInSoc Study.Nutrients · 2025Article
- Association between nutritional status, body composition, and fitness level of adolescents in physical education in Casablanca, Morocco.Frontiers in nutrition · 2023Article
- Dietary intakes and daily distribution patterns of macronutrients in youth soccer players.Frontiers in nutrition · 2023Article
- Dietary Intake and Nitrogen Balance in British Army Infantry Recruits Undergoing Basic Training.Nutrients · 2020Article
- Nutrition for Female Soccer Players-Recommendations.Medicina (Kaunas, Lithuania) · 2020Review
- Nitrogen Balance in Female Japanese National Handball Players During Training Camp.Frontiers in nutrition · 2020Article
- Dietary Intake of Polish Female Soccer Players.International journal of environmental research and public health · 2019Article
- Within-Day Amino Acid Intakes and Nitrogen Balance in Male Collegiate Swimmers during the General Preparation Phase.Nutrients · 2018Article
- Agreement between Two Methods of Dietary Data Collection in Male Adolescent Academy-Level Soccer Players.Nutrients · 2015Article
- Nutritional Considerations for Performance in Young Athletes.Journal of sports medicine (Hindawi Publishing Corporation) · 2015Review
- Nutrient intake and food habits of soccer players: analyzing the correlates of eating practice.Nutrients · 2014Review
- Dietary behaviors and nutritional assessment of young male isfahani wrestlers.International journal of preventive medicine · 2013Article
- Article
- Nutritional Intake of Young Italian High-Level Soccer Players: Under-Reporting is the Essential Outcome.Journal of sports science & medicine · 2007Article
- Nutritional Considerations for Sport Participation in Children and Adolescents With Obesity.American journal of lifestyle medicineReview
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Few investigations have studied protein metabolism in children and adolescent athletes which makes difficult the assessment of daily recommended dietary protein allowances in this population. The problematic in paediatric competitors is the determination of additional protein needs resulting from intensive physical training. The aim of this investigation was to determine protein requirement in 14-year-old male adolescent soccer players. Healthy male adolescent soccer players (N = 11, 13.8 +/- 0.1 year) participated in a short term repeated nitrogen balance study. Diets were designed to provide proteins at three levels: 1.4, 1.2 and 1.0 g protein per kg body weight (BW). Nutrient and energy intakes were assessed from 4 day food records corresponding to 4 day training periods during 3 weeks. Urine was collected during four consecutive days and analysed for nitrogen. The nitrogen balances were calculated from mean daily protein intake, mean urinary nitrogen excretion and estimated faecal and integumental nitrogen losses. Nitrogen balance increased with both protein intake and energy balance. At energy equilibrium, the daily protein intake needed to balance nitrogen losses was 1.04 g kg(-1) day(-1). This corresponds to an estimated average requirement (EAR) for protein of 1.20 g kg(-1) day(-1) and a recommended daily allowance (RDA) of 1.40 g kg(-1) day(-1) assuming a daily nitrogen deposition of 11 mg kg(-1). The results of the present study suggest that the protein requirements of 14-year-old male athletes are above the RDA for non-active male adolescents.
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