Khoramipour Kayvan, Gaeini Abbas Ali, Shirzad Elham, Gilany Kambiz, Chamari Karim, Sandbakk Øyvind
Department of Physiology and Pharmacology, Afzalipour Medical Faculty, and Physiology Research Center, Kerman University of Medical Sciences, Kerman, Iran.
Department of exercise physiology, University of Tehran, Tehran, Iran.
Front Mol Biosci. 2021 May 13;8:639786. doi: 10.3389/fmolb.2021.639786. eCollection 2021.
The current study compared metabolic profiles and movement patterns between different player positions and explored relationships between indicators of internal and external loads during elite male basketball games. Five main players from 14 basketball teams ( = 70) were selected as subjects and defined as backcourt (positions 1-3) or frontcourt (positions 4-5) players. Video-based time motion analysis (VBTMA) was performed based on players' individual maximal speeds. Movements were classified into high and low intensity running with and without ball, high and low intensity shuffling, static effort and jumps. Saliva samples were collected before and after 40-min basketball games with metabolomics data being analyzed by multivariate statistics. Independent -tests were used to compare VBTMA. Frequency, duration, and distance of high and low intensity running and -shuffling were higher in backcourt players, whereas static effort duration and frequency as well as jump frequency were higher in frontcourt players (all ≤ 0.05). The levels of taurine, succinic acid, citric acid, pyruvate, glycerol, acetoacetic acid, acetone, and hypoxanthine were higher in backcourt players, while lactate, alanine, 3-methylhistidine were higher and methionine was lower in frontcourt players (all < 0.05). High intensity running with ball was significantly associated by acetylecholine, hopoxanthine, histidine, lactic acid and leucine in backcourt players ( < 0.05). We demonstrate different metabolic profiles of backcourt and frontcourt players during elite male basketball games; while aerobic metabolic changes are more present in backcourt players, frontcourt players showed lager changes in anaerobic metabolic pathways due to more static movements.
本研究比较了不同球员位置之间的代谢特征和运动模式，并探讨了精英男子篮球比赛中内部和外部负荷指标之间的关系。从14支篮球队中挑选了5名主力球员（n = 70）作为研究对象，并将其定义为后场（1-3号位）或前场（4-5号位）球员。基于球员的个人最大速度进行了基于视频的时间动作分析（VBTMA）。运动被分为有球和无球的高强度和低强度跑步、高强度和低强度变向移动、静态用力和跳跃。在40分钟篮球比赛前后收集唾液样本，并通过多变量统计分析代谢组学数据。使用独立样本t检验比较VBTMA。后场球员的高强度和低强度跑步以及变向移动的频率、持续时间和距离更高，而前场球员的静态用力持续时间和频率以及跳跃频率更高（所有p≤0.05）。后场球员的牛磺酸、琥珀酸、柠檬酸、丙酮酸、甘油、乙酰乙酸、丙酮和次黄嘌呤水平较高，而前场球员的乳酸、丙氨酸、3-甲基组氨酸较高，蛋氨酸较低（所有p < 0.05）。后场球员中，有球高强度跑步与乙酰胆碱、次黄嘌呤、组氨酸、乳酸和亮氨酸显著相关（p < 0.05）。我们证明了精英男子篮球比赛中后场和前场球员不同的代谢特征；后场球员有氧代谢变化更明显，而前场球员由于更多的静态动作，无氧代谢途径变化更大。
