Korean J Community Nutr.  2017 Dec;22(6):495-506. 10.5720/kjcn.2017.22.6.495.

Nutrient Intakes of Male College Combat Sport Athletes by Weight Control Status

• Kim JY
• Lee JS
• Cho SS
• Park H
• Kim KW

• KMID: 2401311
• DOI: http://doi.org/10.5720/kjcn.2017.22.6.495

Abstract

OBJECTIVES
Weight control practices are common in combat sport athletes. This study was performed to examine nutrient intakes of male college combat sport athletes (taekwondo, boxing, judo) by weight control (WC) status.
METHODS
Subjects were male combat sport athletes (n=90) from colleges in Gyeonggi Province. Survey was conducted during 2016. Questionnaire included general characteristics, weight control, and dietary intakes during the period of training, weight control, weigh-in ~ before competition and between competitions. Subjects were grouped into high- and normal WC groups. T-test, χ²-test, Fisher's exact test and ANCOVA were used to analyze the data.
RESULTS
During training, energy intake was 75.4% of EER and C:P:F ratio was 57.5:13.9:28.7. Iron and zinc intakes were different by WC groups (p<0.05). During weight control, energy intake was 44.7% of EER in normal WC and 30.5% in high WC group (p<0.05). C:P:F ratio was 69:11.1:19.5, and ratio from protein and fat was lower in the high WC group (p<0.05). Most nutrient intakes during weight control were less than 50% of 2015 KDRIs (RNI or AI), and intakes including thiamin (p<0.01), vitamin A, riboflavin, niacin, folate, calcium, potassium and zinc (p<0.05) were significantly lower in the high WC. Energy intake after weighing before the competition was 1,315 kcal, and energy (kcal/kg BW, p<0.05) and carbohydrate intakes (g/kg BW, p<0.01) were significantly higher in the high WC group. Energy intake between competitions was 691.1 kcal, with no difference by the WC group.
CONCLUSIONS
Nutrients intakes of combat sport athletes were inadequate. Dietary intakes during weight control were much below than the KDRIs, especially in the high WC group. It is needed to develop nutrition education programs for combat sport athletes to avoid severe energy restrictions and to apply specific dietary guides to each period of training and weight control.

Keyword

combat sport athletes; nutrient intake; weight control

MeSH Terms

Athletes*
Boxing
Calcium
Education
Energy Intake
Folic Acid
Gyeonggi-do
Humans
Iron
Male*
Niacin
Potassium
Riboflavin
Sports*
Vitamin A
Zinc
Calcium
Folic Acid
Iron
Niacin
Potassium
Riboflavin
Vitamin A
Zinc

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