2020 Volume 13 Issue 1 Pages 25-39
【Aim】
We examined the validity and reproducibility of a DHQ for junior athletes.
【Methods】
Junior athletes and their mothers answered the DHQ over a 6-month period. There were a total of 59 participants in the validity study and 108 participants in the reproducibility study. The validity of the DHQ was evaluated based on a 3-day dietary records (DHQ1 and DR, respectively).The reproducibility was compared twice with DHQ (DHQ1 and DHQ2, respectively). For average estimation, a paired t-test was performed, and for rank estimation, Pearson’s product moment correlation analysis was performed.
【Results】
The median correlation coefficient between DHQ1 and DR was 0.36 energy/nutrient intake and 0.30 for each food group; for seven items, the t-test revealed no significant difference and the correlation analysis revealed no significant correlation: energy, carbohydrate, calcium, vitamin B₂, green-yellow vegetables, seafood, and milk.
The median correlation coefficient between DHQ1 and DHQ2 was 0.54 for energy and each nutrient intake, and 0.50 for each food group.
【Conclusion】
The results suggest that DHQ could be used as an effective questionnaire for assessing dietary intake in junior athletes.
