Department of Math and Statistics, University of Wisconsin-La Crosse, La Crosse, Wisconsin.
Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois.
J Strength Cond Res. 2024 Aug 1;38(8):1440-1446. doi: 10.1519/JSC.0000000000004802.
Floersch, S, Vidden, C, Askow, AT, Jones, MT, Fields, JB, and Jagim, AR. Seasonal changes in match demands and workload distribution in collegiate soccer across two seasons. J Strength Cond Res 38(8): 1440-1446, 2024-The purpose of this study was to examine seasonal changes in match demands in a collegiate women's soccer team. Forty-eight NCAA Division III women soccer athletes (age: 19.5 ± 1.2 years; height: 1.67 ± 0.05 m; body mass: 64.8 ± 7.4 kg; fat-free mass: 50.0 ± 4.5 kg; body fat %: 22.6 ± 6.0) were equipped with wearable global positioning systems with inertial sensors and heart rate (HR) monitors during matches throughout the 2019 (n = 22) and 2021 seasons (n = 26). Players were classified by position: flank player (FP; n = 28), center midfielder (CM; n = 11), and center back fielder (CB; n = 9) and as starters (S, n = 17) or reserves (R, n = 31). Variables included HR, training load, total distance, high-speed distance, distance per minute, and weighted distance. Differences in match and practice session demands were analyzed using linear mixed-effects models with season (2 levels; 2019 and 2021) as a fixed factor, with alpha set to p = 0.05. Data across all matches and training sessions were collapsed and presented as mean ± SD for descriptive purposes and then grouped by session type (i.e., match or training) and position. Athletes traveled more distance at high speeds during match play in the 2021 season compared with 2019 (mean difference, 95% confidence intervals [CI]) (200, 95% CI: 104, 304 km; p < 0.05) but had a lower training load in 2021 compared with 2019 (-50, 95% CI: -63, -36; p < 0.05) during match play. For training sessions, mean HR (4, 95% CI: 2, 5 bpm), total distance (0.5, 95% CI: 0.4, 0.7), distance per minute (5.6, 95% CI: 4.5, 6.7 m·min-1), high-speed distance (43, 95% CI: 43, 18, 67 m), high accelerations (8.6, 95% CI: 5.4, 11.8 n), and high accelerations per minute (0.1, 95% CI: 0.1, 0.1 n·min-1) were all higher in 2021 compared with 2019 (p < 0.05). As a team, several differences in measures of external workload were found between seasons in both session types (training and matches). Variations in positional demands of match play appear to fluctuate by year.
弗洛歇尔、Vidden、阿斯kow、琼斯、菲尔兹和贾吉姆。两个赛季大学生足球比赛的季节性比赛需求和工作量分布变化。J 力量与调节研究 38(8):1440-1446，2024-本研究的目的是研究大学生女子足球队比赛需求的季节性变化。48 名 NCAA 第三分部女子足球运动员(年龄:19.5 ± 1.2 岁;身高:1.67 ± 0.05 m;体重:64.8 ± 7.4 kg;去脂体重:50.0 ± 4.5 kg;体脂百分比:22.6 ± 6.0)在 2019 年( n = 22)和 2021 年赛季( n = 26)的比赛中，配备了带有惯性传感器和心率(HR)监测器的可穿戴全球定位系统。球员按位置分类:边锋(fp;n = 28)、中场(cm;n = 11)和中后卫(fb;n = 9)以及首发(s;n = 17)或替补(r;n = 31)。变量包括 HR、训练负荷、总距离、高速距离、每分钟距离和加权距离。使用线性混合效应模型分析了比赛和练习赛需求的差异，其中季节(2 个水平;2019 年和 2021 年)为固定因素，alpha 设置为 p = 0.05。为了描述的目的，将所有比赛和训练课程的数据进行了汇总，并以平均值±SD 表示，然后按课程类型(即比赛或训练)和位置进行分组。与 2019 年相比，2021 年比赛中运动员在高速行驶时的行驶距离更长(平均值差异，95%置信区间[CI]) (200，95%CI:104，304 km;p<0.05)，但 2021 年的训练负荷比 2019 年低(-50，95%CI:-63，-36;p<0.05)。对于训练课程，平均 HR(4，95%CI:2，5 bpm)、总距离(0.5，95%CI:0.4，0.7)、每分钟距离(5.6，95%CI:4.5，6.7 m·min-1)、高速距离(43，95%CI:43，18，67 m)、高加速度(8.6，95%CI:5.4，11.8 n)和高加速度每分钟(0.1，95%CI:0.1，0.1 n·min-1)在 2021 年均高于 2019 年(p<0.05)。作为一个团队，在两个课程类型(训练和比赛)中，不同赛季的外部工作量指标都存在一些差异。比赛中位置需求的变化似乎每年都在波动。
