Children's Health and Exercise Research Centre, Sport and Health Sciences, College of Life and Environmental Sciences, University of Exeter, Exeter, UK.
Exercise and Sports Science Programme, School of Health Sciences, Universiti Sains Malaysia, Malaysia.
J Sports Sci Med. 2019 Feb 11;18(1):1-12. eCollection 2019 Mar.
High-intensity interval exercise (HIIE) may not elicit prominent unpleasant feelings even with elevated perceived exertion and physiological stress in adolescents. However, the influence of different HIIE work intensities on the affective experience and cardiorespiratory responses is unknown. This study examined the acute affective, enjoyment, perceived exertion and cardiorespiratory responses to HIIE with different work intensities in adolescents. Participants (n = 16; 8 boys; age 12.0 ± 0.3 years) performed, on separate days, HIIE conditions consisting of 8 x 1-minute work-intervals at 70%, 85%, or 100% peak power separated by 75 seconds recovery at 20 W. Affect, enjoyment and rating of perceived exertion (RPE) were recorded before, during, and after HIIE. Heart rate (HR) and oxygen uptake were collected during HIIE. Affect declined in all conditions (p < 0.01) but 100%HIIE elicited significantly lower affect than 70%HIIE and 85%HIIE at work-interval 8 (all p < 0.02, ES > 1.74; 70%HIIE = 2.5 ± 0.8; 85%HIIE = 1.1 ± 1.5; 100%HIIE = -1.5 ± 1.4 on feeling scale). Similar enjoyment was evident during and after all conditions (all p > 0.44). RPE was significantly higher during 100%HIIE than 70%HIIE and 85%HIIE across all work-intervals (all p < 0.01, ES > 1.56). The majority of the participants attained ≥90%HR during 85%HIIE (87%) and 100%HIIE (100%), but not during 70%HIIE (6%). Affect responses during HIIE are dependent on the intensity of the work-interval and are not entirely negative (unpleasant feelings). Despite similar enjoyment, positive affect experienced during 70%HIIE and 85%HIIE could serve as a strategy to encourage exercise adoption and adherence in adolescents, but only 85%HIIE elicits sufficient HR stimulus to facilitate potential health benefits.
高强度间歇训练（HIIE）即使在青少年中引起较高的感知用力和生理应激，也可能不会引起明显的不愉快感觉。然而，不同 HIIE 工作强度对情感体验和心肺反应的影响尚不清楚。本研究探讨了不同工作强度的 HIIE 对青少年急性情感、享受、感知用力和心肺反应的影响。参与者（n = 16；8 名男孩；年龄 12.0 ± 0.3 岁）分别在不同的日子进行了 8 x 1 分钟的工作间隔，工作强度分别为 70%、85%或 100%峰值功率，间隔 75 秒恢复期为 20 W。在 HIIE 之前、期间和之后记录情感、享受和感知用力评分（RPE）。在 HIIE 期间收集心率（HR）和摄氧量。在所有条件下，情感都下降（p < 0.01），但在第 8 个工作间隔时，100%HIIE 引起的情感明显低于 70%HIIE 和 85%HIIE（均 p < 0.02，ES > 1.74；70%HIIE = 2.5 ± 0.8；85%HIIE = 1.1 ± 1.5；100%HIIE = -1.5 ± 1.4 在感觉量表上）。在所有条件下，在工作间隔期间和之后都有相似的享受（均 p > 0.44）。在所有工作间隔中，100%HIIE 的 RPE 均显著高于 70%HIIE 和 85%HIIE（均 p < 0.01，ES > 1.56）。在 85%HIIE（87%）和 100%HIIE（100%）中，大多数参与者达到了≥90%HR，但在 70%HIIE 中则没有（6%）。HIIE 期间的情感反应取决于工作间隔的强度，并不完全是负面的（不愉快的感觉）。尽管享受程度相似，但 70%HIIE 和 85%HIIE 期间的积极情感可能成为鼓励青少年采用和坚持运动的策略，但只有 85%HIIE 才能引起足够的 HR 刺激，从而促进潜在的健康益处。
