Dietary Intake and Daily Distribution of Carbohydrate, Protein and Fat in Youth Tennis Players over a 7-Day Training and Competition Period

Jul 16, 2021Journal of sports science & medicine

Daily Amounts and Timing of Carbs, Protein, and Fat in Young Tennis Players During a Week of Training and Competition

AI simplified

Circadian Biology on OpenScience ↗PubMed ↗DOI ↗OA ↗

Abstract

Youth tennis players (n = 27) consistently consumed below 2250 kcal·day during a 7-day assessment period.

Total energy intake did not differ significantly between age groups or training and competition days.
Carbohydrate consumption was below recommended guidelines for all age groups, averaging ≤6g·kg.
Protein intake met or exceeded guidelines, with intakes ≥2 g·kg for under 12 and under 14 age groups.
Protein intake was approximately 17% higher on training days compared to competition days.
Inconsistent snacking habits were observed, with snacks consumed on less than half of the reported days.

AI simplified

During a 7-day training and/or competition period, macronutrient intake and distribution was assessed using food diaries, supported by remote food photography and 24-hr multiple pass recalls of youth tennis players categorised by under 12s, under 14s and under 16+ age groups (n = 27). Total energy did not differ between age groups nor type of day (training [TD], competition day [CD]), irrespective of a significant increase in body mass reported in the older players (U16+; p < 0.05). Average intakes were consistently below 2250 kcal·day(range 1965 ± 317-2232 ± 612 kcal·day). Carbohydrate consumption was below guidelines for all groups (≤6g·kg). Conversely, protein intake met or exceeded guidelines throughout, with intakes ≥2 g·kgfor both the U12 and U14 age groups on both days. Protein intake was ~17% higher on TDs than CDs (p < 0.05), with protein intake at lunch significantly higher on TDs than CDs (p < 0.05). No further differences were observed between breakfast, lunch or dinner between group or day. Inconsistent snacking was reported, with players consuming snacks on less than half of the days reported (46 ± 12% of TDs and 43 ± 30% of CDs). In conclusion, youth tennis players present sub-optimal nutrition practices, appearing to under fuel and under consume carbohydrate for performance, adaptation, recovery and health. -1 -1 -1 -1

Dietary Intake and Daily Distribution of Carbohydrate, Protein and Fat in Youth Tennis Players over a 7-Day Training and Competition Period

Abstract

You found one interesting study. We’ll send the next 7.

what lands in your inbox each week:

Recent issues from the circadian biology brief

Abstract

Related papers

You found one interesting study. We’ll send the next 7.

what lands in your inbox each week:

Recent issues from the circadian biology brief