Centre for Sport Research, School of Exercise and Nutrition Sciences, Faculty of Health, Deakin University, 221 Burwood Highway, Burwood, Melbourne, VIC 3125, Australia.
Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Faculty of Health, Deakin University, 221 Burwood Highway, Burwood, Melbourne, VIC 3125, Australia.
Nutrients. 2019 Apr 28;11(5):971. doi: 10.3390/nu11050971.
This study aimed to assess nutritional intake, sports nutrition knowledge and risk of Low Energy Availability (LEA) in female Australian rules football players. Victorian Football League Women's competition (VFLW) players (n = 30) aged 18-35 (weight: 64.5 kg ± 8.0; height: 168.2 cm ± 7.6) were recruited from Victoria, Australia. Nutritional intake was quantified on training days using the Automated 24 h Dietary Assessment Tool (ASA24-Australia), and sports nutrition knowledge was measured by the 88-item Sports Nutrition Knowledge Questionnaire (SNKQ). The risk of LEA was assessed using the Low Energy Availability in Females Questionnaire (LEAF-Q). Daily mean carbohydrate intake in the current investigation was 3 g⋅kg⋅d, therefore, below the minimum carbohydrate recommendation for moderate exercise of approximately one hour per day (5-7 g⋅kg⋅d) and for moderate to intense exercise for 1-3 h per day (6-10 g⋅kg⋅d) for 96.3% and 100% of players, respectively. Daily mean protein intake was 1.5 g⋅kg⋅d, therefore, consistent with recommendations (1.2-2.0 g⋅kg⋅d) for 77.8% of players. Daily mean calcium intake was 924.8 mg⋅d, therefore, below recommendations (1000 mg⋅d) for 65.5% of players, while mean iron intake was 12.2 mg⋅d, also below recommendations (18 mg⋅d) for 100% of players. Players answered 54.5% of SNKQ questions correctly, with the lowest scores observed in the section on supplements. Risk of LEA was evident in 30% of players, with no differences in carbohydrate ( = 0.238), protein ( = 0.296), fat ( = 0.490) or energy ( = 0.971) intakes between players at risk of LEA and those not at risk. The results suggest that female Australian rules football players have an inadequate intake of carbohydrate and calcium and low sports nutrition knowledge. Further investigation to assess the risk of LEA using direct measures is required.
本研究旨在评估澳大利亚女子澳式足球运动员的营养摄入、运动营养知识和低能量状态(LEA)风险。从澳大利亚维多利亚州招募了 30 名年龄在 18-35 岁之间的维多利亚足球联赛女子比赛(VFLW)运动员(体重:64.5kg±8.0;身高:168.2cm±7.6)。在训练日,使用自动 24 小时膳食评估工具(ASA24-澳大利亚)对营养摄入进行了量化,运动营养知识则通过 88 项运动营养知识问卷(SNKQ)进行了测量。使用女性低能量状态问卷(LEAF-Q)评估了 LEA 的风险。目前研究中的每日平均碳水化合物摄入量为 3g/kg/d,因此低于每天一小时适度运动(5-7g/kg/d)和每天 1-3 小时中高强度运动(6-10g/kg/d)的最低碳水化合物推荐摄入量,分别有 96.3%和 100%的运动员碳水化合物摄入量不足。每日平均蛋白质摄入量为 1.5g/kg/d,因此,77.8%的运动员的摄入量符合推荐值(1.2-2.0g/kg/d)。每日平均钙摄入量为 924.8mg/d,因此,65.5%的运动员低于推荐摄入量(1000mg/d),而平均铁摄入量为 12.2mg/d,也低于推荐摄入量(18mg/d),100%的运动员均摄入不足。运动员正确回答了 SNKQ 问题的 54.5%,在补充剂部分得分最低。30%的运动员存在 LEA 风险,在 LEA 风险和无 LEA 风险的运动员之间,碳水化合物( = 0.238)、蛋白质( = 0.296)、脂肪( = 0.490)或能量( = 0.971)的摄入量均无差异。结果表明,澳大利亚女子澳式足球运动员的碳水化合物和钙摄入量不足,运动营养知识水平较低。需要进一步的研究来使用直接测量方法评估 LEA 的风险。