Relationship of simple reaction time and aerobic and anaerobic capacities with performance of recreational adult orienteers

Abstract This study aimed to examine the effects of Simple Reaction Time (SRT), MaximalOxygen Uptake ( V ? V ? O2max) and Maximal Anaerobic Power (Pmax) on the performance of category A recreational adult orienteers of both sexes. Sixteen subjects (8 men and 8 women; age: 30 ± 4 and 27 ± 5 years; body mass 78.8 ± 5.9 and 69.2 ± 10.4 kg; SRT: 1.391 ± 0.19 and 1.317 ± 0.25 ms; V ? V ? O2max: 67.4 ± 3.22 and 48.5 ± 8.28 ml.kg-1.min-1; Pmax: 675.0 ± 149.6 and 458.4 ± 88.62 W), were submitted to three evaluation sessions: sample characterization (1st session); SRT - Reaction Time Task v.2.0, V ? V ? O2max, and Pmax - Running Anaerobic Sprint Test (2nd session); official Orienteering test (3rd session). Results of comparison (Student’s T-test) and relation (Pearson Product-Moment Correlation and Multiple Linear Regression) tests showed significant relationships between independent variables and performance. Pmax presented strong predictive power in the male group (41%), followed by SRT (32%) and V ? V ? O2max (27%). In the female group, SRT was the most predictive variable (54%), followed by V ? V ? O2max (32%) and Pmax (12%). These findings indicated that SRT, V ? V ? O2max, and Pmax are variables predictive of performance in recreational category A orienteers. Specifically in recreational orienteers with high cardiorespiratory capacities, Pmax seems to be the mainpredictor variable. Conversely, SRT becomes the variable with the greatest predictive power.

摘要 本研究旨在探讨简单反应时（Simple Reaction Time, SRT）、最大摄氧量（Maximal Oxygen Uptake, V̇O2max）以及最大无氧功率（Maximal Anaerobic Power, Pmax）对男女两性A级业余成年定向越野运动员运动表现的影响。本研究共纳入16名受试者（8名男性、8名女性；男性年龄30±4岁，女性27±5岁；体质量分别为78.8±5.9 kg与69.2±10.4 kg；SRT分别为1.391±0.19 ms与1.317±0.25 ms；V̇O2max分别为67.4±3.22与48.5±8.28 ml·kg⁻¹·min⁻¹；Pmax分别为675.0±149.6 W与458.4±88.62 W），所有受试者依次完成3项评估流程：第1场为样本特征表征环节；第2场完成简单反应时测试任务v2.0、V̇O2max测试以及跑步无氧冲刺测试（Running Anaerobic Sprint Test）以获取上述三项指标；第3场为正式定向越野测试。通过学生t检验（Student’s T-test）开展组间比较，结合皮尔逊积矩相关分析（Pearson Product-Moment Correlation）与多元线性回归（Multiple Linear Regression）分析变量间关联，结果显示各自变量与运动表现间存在显著相关关系。在男性组别中，Pmax的预测效力最强（解释度达41%），其次为SRT（32%）与V̇O2max（27%）；在女性组别中，SRT的预测效力最高（解释度达54%），紧随其后的是V̇O2max（32%）与Pmax（12%）。上述研究结果表明，SRT、V̇O2max与Pmax均可作为A级业余定向越野运动员运动表现的预测变量。具体而言，对于心肺储备能力较高的业余定向越野运动员而言，Pmax为首要预测变量；反之，SRT则成为预测效力最强的指标。