Assessments of Diets and supplementations of Semi-Professional rugby league players
Gregory, Scott Andrew Paul
Cardiff Metropolitan University
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The purpose of the present study was to assess the dietary adequacies of semi-professional rugby league players backs in comparison to forwards and comparisons to their RNI. Eight (4 backs; 4 forwards) male rugby league players (Age 24± 2.5 yrs, 26± 3.2 yrs; Height 182± 2 cm, 184± 2 cm; Weight (kg) 93± 4.2 kg, 100± 4.3 kg) participated in the present study, each participant completed three-day food and exercise diary. The food diaries were processed using the dietary analysis software Nutrimen dietary analysis package to quantify the macronutrient and micronutrient content of each diet. Statistical analysis was conducted to compare both the backs and forwards, estimated energy intakes and their reference nutrient intakes. The results showed significant deficiencies in carbohydrate (CHO) intakes in both subject groups. The CHO average intake for backs (280.5 ± 25.4 g·d-1) compared to their RNI (744 ± 28.8 g·d-1), and the forwards showed similar results for their average CHO intake (451.1 ± 68.5 g·d-1) compared to their RNI (804 ± 29.1 g·d-1). There were differences in the backs average total energy intake (3178 ± 255.8 kcal) compared to the forwards average total energy intake (4275.3 ± 600.1 kcal). On average both the backs and forwards were extremely deficient in CHO (P <0.01) and excessive intake of fat (P < 0.01). The protein intake was on average higher than their RNI (P < 0.01). There is considerable amount of literature that supports the importance of CHO intake for health and performance. The athletes in the study were recommended to increase their CHO intake to at least 50% total energy intake and to reduce the amount of fat consumption. It was concluded that the dietary assessment of nutritional knowledge and strategies of semi-professional rugby league players may be an area for further research on a larger scale as the findings suggest there is a lack of knowledge of sports nutrition.
BSc (Hons) Biomedical Sciences (Health, Excercise & Nutrition)
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