Prevalence of low energy availability in 25 New Zealand elite female rowers - A cross sectional study
(Prävalenz der geringen Energieverfügbarkeit bei 25 neuseeländischen Elite-Ruderinnen - eine Querschnittsstudie)
Objectives
To quantify energy availability (EA) in elite female rowers, determine its association with bone mineral density (BMD), and examine the ability of the low energy availability in females-questionnaire (LEAF-Q) and brief eating disorder in athletes-questionnaire (BEDA-Q) to distinguish between low and normal EA.
Design
Observational cross-sectional study.
Methods
Twenty-five elite female rowers participated in the study. EA was calculated by means of a 4-day food intake diary and analysis of training load. Low energy availability (LEA) was defined as EA < 30 kCal * kg-1 * FFM-1 * day-1. Dual-energy X-ray absorptiometry (DXA) was used to assess fat free mass (FFM) and BMD Z-scores. LEA risk was assessed using the LEAF-Q and BEDA-Q.
Results
The mean EA was 23.2 ± 12.2 kCal * kg-1 * FFM-1 * day-1. Prevalence of LEA was 64 %. The mean BMD Z-score was 1.6 ± 0.6 (range: 0.7 to 2.9). Athletes with LEA had a significantly higher BEDA-Q score than the group with normal EA (mean 0.30 ± 0.17 vs. 0.09 ± 0.11, P < 0.05), but LEAF-Q score was not different between groups (mean 10.4 ± 4.6, 8.2 ± 4.5, P = 0.29).
Conclusion
Low energy availability is common amongst elite female rowers in New Zealand and is positively correlated with higher scores on the BEDA-Q. Bone mineral density was normal irrespective of EA status.
© Copyright 2023 Journal of Science and Medicine in Sport. Elsevier. Alle Rechte vorbehalten.
| Schlagworte: | |
|---|---|
| Notationen: | Ausdauersportarten Biowissenschaften und Sportmedizin |
| Tagging: | RED-S Knochendichte Low Energy Availability |
| Veröffentlicht in: | Journal of Science and Medicine in Sport |
| Sprache: | Englisch |
| Veröffentlicht: |
2023
|
| Online-Zugang: | https://doi.org/10.1016/j.jsams.2023.09.016 |
| Jahrgang: | 26 |
| Heft: | 12 |
| Seiten: | 640-645 |
| Dokumentenarten: | Artikel |
| Level: | hoch |