ABSTRACT

High-intensity interval training (HIIT) is effective for generating positive cardiovascular health and fitness benefits. This study compared HIIT and moderate-intensity continuous training (MICT) for affective state and enjoyment in sedentary males with overweight or obesity.

Twenty-eight participants performed stationary cycling for 6 weeks × 3 sessions/week. Participants were randomly allocated to HIIT (N=16) (10 × 1-minute intervals at ~90% peak heart rate) or MICT (N=12) (30 minutes at 65-75% peak heart rate). Affective state changes were assessed after 6-weeks training. Enjoyment and acute change in affect were assessed after individual training sessions.

HIIT participants reported improved positive affect following 6 weeks training (∆ 3.6 ± 4.6, p = 0.007, effect size d = 0.70), without corresponding improvement in negative affect (p = 0.48, d = -0.19). MICT did not induce any improvement in positive affect (p = 0.56, d = 0.16) or negative affect (p = 0.23, d = -0.41). Enjoyment ratings were comparable for both exercise formats (HIIT: 4.4 ± 0.4 on a 7-point scale; MICT: 4.3 ± 0.3; p = 0.70, d = 0.15).

Six weeks of HIIT induced improvement in positive affect in sedentary participants with overweight or obesity. Enjoyment of training was only slightly above neutral levels for both training formats.

What’s already known about this topic?

• Exercise training can improve general affect however the optimal exercise characteristics for improving affect are unclear.

• Studies assessing the relative enjoyment of HIIT in comparison to MICT have largely been equivocal to date.

What does this study add?

• HIIT can improve affective state in males with overweight or obesity.

• Six weeks of stationary cycling HIIT were rated as only mildly enjoyable, comparable to ratings for MICT.

摘要

高强度间歇训练 (HIIT) 可有效产生积极的心血管健康和健身益处。这项研究比较了 HIIT 和中等强度持续训练 (MICT) 对久坐的超重或肥胖男性的情感状态和享受的影响。

28 名参与者进行了 6 周 × 3 次/周的固定骑行。参与者被随机分配到 HIIT (N=16)（10 × 1 分钟间隔，峰值心率约为 90%）或 MICT（N=12）（30 分钟，峰值心率为 65-75%）。在 6 周的训练后评估情感状态的变化。在个别培训课程后评估享受和情感的急剧变化。

HIIT 参与者报告在 6 周的训练后积极影响有所改善（Δ 3.6 ± 4.6，p = 0.007，影响大小 d = 0.70），而消极影响没有相应改善（p = 0.48，d = -0.19）。MICT 没有引起积极影响（p = 0.56，d = 0.16）或消极影响（p = 0.23，d = -0.41）的任何改善。两种锻炼形式的享受评分具有可比性（HIIT：4.4 ± 0.4，7 分制；MICT：4.3 ± 0.3；p = 0.70，d = 0.15）。

六周的 HIIT 可改善久坐不动的超重或肥胖参与者的积极影响。两种培训形式的培训享受仅略高于中性水平。

关于这个话题已经知道了什么？

• 运动训练可以改善一般情绪，但改善情绪的最佳运动特征尚不清楚。

• 迄今为止，评估 HIIT 相对于 MICT 的相对享受的研究在很大程度上是模棱两可的。

这项研究增加了什么？

• HIIT可以改善超重或肥胖男性的情感状态。

• 六周的固定自行车 HIIT 仅被评为轻度愉快，与 MICT 的评分相当。