Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 2083-2092 |
| Journal | British Journal of Nutrition |
| Volume | 114 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2015 |
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Validation of web-based, multiple 24-h recalls combined with nutritional supplement intake questionnaires against nitrogen excretions to determine protein intake in Dutch elite athletes. / Wardenaar, F.C.; Steennis, J.; Geelen, I.J.M.; Mensink, M.R.; Witkamp, R.F.; de Vries, J.H.M.
In: British Journal of Nutrition, Vol. 114, No. 12, 2015, p. 2083-2092.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Validation of web-based, multiple 24-h recalls combined with nutritional supplement intake questionnaires against nitrogen excretions to determine protein intake in Dutch elite athletes
AU - Wardenaar, F.C.
AU - Steennis, J.
AU - Geelen, I.J.M.
AU - Mensink, M.R.
AU - Witkamp, R.F.
AU - de Vries, J.H.M.
PY - 2015
Y1 - 2015
N2 - Information on dietary composition is vitally important for elite athletes to optimise their performance and recovery, which requires valid tools. The aim of the present study was to investigate the validity of assessing protein intake using three web-based 24-h recalls and questionnaires, by comparing these with three urinary N excretions on the same day. A total of forty-seven Dutch elite top athletes, both disabled and non-disabled, aged between 18 and 35 years, with a BMI of 17·5–31 kg/m2, exercising >12 h/week were recruited. Estimated mean dietary protein intake was 109·6 (SD 33·0) g/d by recalls and questionnaires v. 141·3 (SD 38·2) g/d based on N excretions in urine; the difference was 25·5 (SD 21·3) % between the methods (P
AB - Information on dietary composition is vitally important for elite athletes to optimise their performance and recovery, which requires valid tools. The aim of the present study was to investigate the validity of assessing protein intake using three web-based 24-h recalls and questionnaires, by comparing these with three urinary N excretions on the same day. A total of forty-seven Dutch elite top athletes, both disabled and non-disabled, aged between 18 and 35 years, with a BMI of 17·5–31 kg/m2, exercising >12 h/week were recruited. Estimated mean dietary protein intake was 109·6 (SD 33·0) g/d by recalls and questionnaires v. 141·3 (SD 38·2) g/d based on N excretions in urine; the difference was 25·5 (SD 21·3) % between the methods (P
U2 - 10.1017/S0007114515003839
DO - 10.1017/S0007114515003839
M3 - Article
VL - 114
SP - 2083
EP - 2092
JO - The British journal of nutrition
JF - The British journal of nutrition
SN - 0007-1145
IS - 12
ER -