Nuuttila Olli-Pekka, Uusitalo Arja, Kokkonen Veli-Pekka, Kyröläinen Heikki
Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland.
UKK Institute for Health Promotion Research, Tampere, Finland.
Int J Sports Physiol Perform. 2024 Sep 6;19(11):1299-1306. doi: 10.1123/ijspp.2024-0105. Print 2024 Nov 1.
To examine the reproducibility and sensitivity of a self-paced field running test (SFT) in monitoring positive and negative changes in endurance performance.
A total of 27 (11 women) recreational runners participated in a 6-week training intervention. The intervention was divided into a 3-week baseline period, a 2-week overload period, and a 1-week recovery period. An incremental treadmill test was performed before the baseline period and a 3000-m running test before and after all periods (T1-T4). In addition, the participants performed once a week an SFT (SFT1-6), which consisted of submaximal (6 + 6 + 3-min test at perceived exertion of 9/20, 13/20, and 17/20) and maximal sections (6 × 3-min intervals at maximum sustainable effort). The associations between the incremental treadmill test and the SFT1 performance were examined with the Pearson correlation, and the intraclass correlation was analyzed for the parameters of SFT1 to SFT3 sessions during the baseline period. The repeated-measures correlation was calculated for the 3000-m speed at T1 to T4 and the corresponding speeds at SFT.
Significant associations (r = .68-.93; P < .001) were found between the speeds of the SFT and the peak and lactate threshold speeds of the incremental treadmill test. Intraclass correlations varied between .77 and .96, being the highest for the average speed of 6 × 3-minute intervals. Repeated-measures correlation was significant (P < .05) for the 9/20 (r = .24), 13/20 (r = .24), and 6 × 3-minute intervals (r = .29).
The SFT seemed a reproducible method to estimate endurance performance in recreational runners. The sensitivity to track short-term and small-magnitude changes in performance seems more limited and might require more standardized conditions.
研究自定步速的场地跑步测试（SFT）在监测耐力表现的正向和负向变化方面的可重复性和敏感性。
共有27名（11名女性）业余跑步者参与了为期6周的训练干预。干预分为3周的基线期、2周的超负荷期和1周的恢复期。在基线期之前进行递增式跑步机测试，在所有阶段（T1 - T4）之前和之后进行3000米跑步测试。此外，参与者每周进行一次SFT（SFT1 - 6），包括次最大强度（在自觉用力程度为9/20、13/20和17/20时进行6 + 6 + 3分钟测试）和最大强度部分（以最大可持续努力进行6个3分钟间隔）。用Pearson相关性检验递增式跑步机测试与SFT1表现之间的关联，并分析基线期SFT1至SFT3阶段参数的组内相关性。计算T1至T4阶段3000米速度与SFT相应速度的重复测量相关性。
SFT速度与递增式跑步机测试的峰值速度和乳酸阈速度之间存在显著关联（r = 0.68 - 0.93；P < 0.001）。组内相关性在0.77至0.96之间变化，6个3分钟间隔的平均速度相关性最高。9/20（r = 0.24）、13/20（r = 0.24）和6个3分钟间隔（r = 0.29）的重复测量相关性显著（P < 0.05）。
SFT似乎是一种可重复的方法，用于评估业余跑步者的耐力表现。跟踪表现的短期和小幅度变化的敏感性似乎更有限，可能需要更标准化的条件。
