University of British Columbia.
McGill University.
Res Q Exerc Sport. 2022 Jun;93(2):291-300. doi: 10.1080/02701367.2020.1828562. Epub 2020 Oct 16.
: To report pilot test findings on whether in-task affect during a supervised exercise program, where participants were randomized to either moderate-intensity continuous training (MICT) or high-intensity interval training (HIIT), predicts changes in moderate-to-vigorous physical activity (MVPA-Total and MVPA10+ in bouts of ≥ 10 min) at 1- and 6-month post-intervention. : This experimental study design randomized 32 inactive adults with prediabetes to complete a 2-week supervised MICT or HIIT plus behavioral counseling exercise intervention and objectively assessed free-living physical activity post-intervention. The Feeling Scale (FS) was used to assess the in-task effect. FS was measured in the middle of four, 1-min intervals in the HIIT condition, corresponding to ~20%, ~50%, ~75%, and ~85% of work out time. For the MICT condition, FS was assessed at similar exercise duration percentage times as HIIT. Accelerometer data evaluated MVPA at 1- and 6-month post-intervention. : 32 adults were included in the analyses. Pilot findings indicated in-task affect between the conditions did not predict changes in MVPA-Total from baseline to 1 and 6 months. For MVPA10+, in-task affect negatively predicted MVPA10+ over time in the MICT condition only. : This study provides preliminary evidence that affect during MICT negatively predicts MVPA10+ over time, and that there is no difference of in-task affect's utility in predicting MVPA-Total between HIIT and MICT. Larger studies are required to confirm these findings.
: 报告一项关于监督运动计划中任务内影响的初步研究结果，其中参与者被随机分配到中等强度连续训练（MICT）或高强度间歇训练（HIIT）组。研究目的是探讨干预后 1 个月和 6 个月时，中等至剧烈体力活动（MVPA-Total 和 MVPA10+，≥ 10 分钟的运动片段）的变化是否与干预期间的任务内影响有关。 : 该实验性研究设计将 32 名患有前驱糖尿病的不活跃成年人随机分为两组，分别完成为期 2 周的监督 MICT 或 HIIT 加行为咨询运动干预，并在干预后客观评估自由生活体力活动。使用感觉量表（FS）评估任务内影响。在 HIIT 条件下，FS 在四个 1 分钟间隔的中间进行测量，对应于约 20%、50%、75%和 85%的运动时间。对于 MICT 条件，FS 在类似的运动持续时间百分比时间内进行评估，与 HIIT 相同。在干预后 1 个月和 6 个月，加速度计数据评估 MVPA。 : 32 名成年人纳入分析。初步研究结果表明，条件之间的任务内影响并不能预测 MVPA-Total 从基线到 1 个月和 6 个月的变化。对于 MVPA10+，仅在 MICT 条件下，任务内影响随时间呈负向预测 MVPA10+。 : 本研究初步表明，MICT 期间的影响负向预测 MVPA10+随时间的变化，而 HIIT 和 MICT 之间，任务内影响在预测 MVPA-Total 方面的效用没有差异。需要更大的研究来证实这些发现。
