Carlsson Magnus, Assarsson Hannes, Carlsson Tomas
School of Education, Health and Social Studies, Dalarna University, Falun, Sweden; Dala Sports Academy, Falun, Sweden.
School of Education, Health and Social Studies, Dalarna University, Falun, Sweden.
Open Access J Sports Med. 2016 Feb 18;7:11-9. doi: 10.2147/OAJSM.S101995. eCollection 2016.
The purpose of this study was to investigate pacing-profile differences during the 90 km Vasaloppet ski race related to the categories of sex, age, and race experience. Skiing times from eight sections (S1 to S8) were analyzed. For each of the three categories, 400 pairs of skiers were matched to have a finish time within 60 seconds, the same start group, and an assignment to the same group for the other two categories. Paired-samples Student's t-tests were used to investigate sectional pacing-profile differences between the subgroups. Results showed that males skied faster in S2 (P=0.0042), S3 (P=0.0049), S4 (P=0.010), and S1-S4 (P<0.001), whereas females skied faster in S6 (P<0.001), S7 (P<0.001), S8 (P=0.0088), and S5-S8 (P<0.001). For the age category, old subjects (40 to 59 years) skied faster than young subjects (19 to 39 years) in S3 (P=0.0029), and for the other sections, there were no differences. Experienced subjects (≥4 Vasaloppet ski race completions) skied faster in S1 (P<0.001) and S1-S4 (P=0.0054); inexperienced skiers (<4 Vasaloppet ski race completions) had a shorter mean skiing time in S5-S8 (P=0.0063). In conclusion, females had a more even pacing profile than that of males with the same finish time, start group, age, and race experience. No clear age-related pacing-profile difference was identified for the matched subgroups. Moreover, experienced skiers skied faster in the first half whereas inexperienced skiers had higher skiing speeds during the second half of the race.
本研究的目的是调查在90公里瓦萨滑雪比赛中，与性别、年龄和比赛经验类别相关的配速特征差异。分析了八个赛段（S1至S8）的滑雪时间。对于这三个类别中的每一个，400对滑雪者被匹配为完成时间在60秒内，起跑组相同，并且在其他两个类别中被分配到同一组。采用配对样本t检验来研究亚组之间的分段配速特征差异。结果显示，男性在S2（P=0.0042）、S3（P=0.0049）、S4（P=0.010）和S1-S4（P<0.001）赛段滑雪速度更快，而女性在S6（P<0.001）、S7（P<0.001）、S8（P=0.0088）和S5-S8（P<0.001）赛段滑雪速度更快。在年龄类别方面，老年受试者（40至59岁）在S3赛段比年轻受试者（19至39岁）滑雪速度更快（P=0.0029），而在其他赛段没有差异。有经验的受试者（≥4次完成瓦萨滑雪比赛）在S1（P<0.001）和S1-S组4（P=0.0054）赛段滑雪速度更快；无经验的滑雪者（<4次完成瓦萨滑雪比赛）在S5-S8赛段平均滑雪时间更短（P=0.0063）。总之，在完成时间、起跑组、年龄和比赛经验相同的情况下，女性的配速特征比男性更均匀。对于匹配的亚组，未发现明显的与年龄相关的配速特征差异。此外，有经验的滑雪者在上半场滑雪速度更快，而无经验的滑雪者在比赛下半场滑雪速度更高。
