高强度间歇运动比中年成年人的亚最大运动在运动后代谢中引起更大的变化。
Intense interval exercise induces greater changes in post-exercise metabolism compared to submaximal exercise in middle-aged adults.
机构信息
Department of Kinesiology and Physical Education, Wilfrid Laurier University, 75 University Ave W, Waterloo, ON, N2L3C5, Canada.
School of Kinesiology and Health Studies, Queen's University, Kingston, ON, Canada.
出版信息
Eur J Appl Physiol. 2024 Apr;124(4):1075-1084. doi: 10.1007/s00421-023-05334-w. Epub 2023 Oct 11.
INTRODUCTION
High-intensity interval training (HIIT) and sprint interval training (SIT) consistently elevate post-exercise metabolism compared to moderate-intensity continuous training (MICT) in young adults (18-25 years), however few studies have investigated this in middle-aged adults.
PURPOSE
To assess the effect of exercise intensity on post-exercise metabolism following submaximal, near-maximal, and supramaximal exercise protocols in middle-aged adults.
METHODS
12 participants (8 females; age: 44 ± 10 years; O: 35.73 ± 9.97 mL·kg min) had their oxygen consumption ( O) measured during and for 2 h following 4 experimental sessions: (1) no-exercise control (CTRL); (2) MICT exercise (30 min at 65% O); (3) HIIT exercise (10 × 1 min at 90% maximum heart rate with 1 min rest); and (4) modified-SIT exercise (8 × 15 s "all-out" efforts with 2 min rest). Between session differences for O and fat oxidation were compared.
RESULTS
O consumed post-exercise was elevated during the 1st h and 2nd h following HIIT (15.9 ± 2.6, 14.7 ± 2.3 L; P < 0.036, d > 0.98) and modified-SIT exercise (16.9 ± 3.3, 15.30 ± 3.4 L; P < 0.041, d > 0.96) compared to CTRL (13.3 ± 1.9, 12.0 ± 2.5 L) while modified-SIT was also elevated vs HIIT in the 1st h (P < 0.041, d > 0.96). Total post-exercise O consumption was elevated following all exercise sessions (MICT: 27.7 ± 4.1, HIIT: 30.6 ± 4.8, SIT: 32.2 ± 6.6 L; P < 0.027, d > 1.03) compared to CTRL (24.9 ± 4.1 L). Modified-SIT exercise increased fat oxidation (0.103 ± 0.019 g min) compared to all sessions post-exercise (CTRL: 0.059 ± 0.025, MICT: 0.075 ± 0.022, HIIT: 0.081 ± 0.021 g·min; P < 0.007, d > 1.30) and HIIT exercise increased compared to CTRL (P = 0.046, d = 0.87).
CONCLUSION
Exercise intensity has an important effect on post-exercise metabolism in middle-aged adults.
简介
高强度间歇训练（HIIT）和冲刺间歇训练（SIT）在年轻成年人（18-25 岁）中比中等强度持续训练（MICT）更能提高运动后的代谢率，但很少有研究在中年成年人中进行过此类研究。
目的
评估在中年成年人中，亚最大强度、近最大强度和最大强度运动方案后运动后代谢的运动强度的影响。
方法
12 名参与者（8 名女性；年龄：44±10 岁；O：35.73±9.97 mL·kg·min）在进行 4 个实验性试验（1）无运动对照（CTRL）；（2）MICT 运动（以 65%O 进行 30 分钟）；（3）HIIT 运动（以 90%最大心率进行 10×1 分钟，1 分钟休息）；（4）改良 SIT 运动（8×15 秒“全力以赴”的努力，休息 2 分钟）后测量其耗氧量（O）。比较运动后 O 和脂肪氧化的会话间差异。
结果
与 CTRL（13.3±1.9，12.0±2.5 L）相比，HIIT 和改良 SIT 运动后 1 小时和 2 小时的 O 消耗增加（15.9±2.6，14.7±2.3 L；P<0.036，d>0.98）和改良 SIT 运动（16.9±3.3，15.30±3.4 L；P<0.041，d>0.96），而改良 SIT 运动在 1 小时内也比 HIIT 运动升高（P<0.041，d>0.96）。与 CTRL（24.9±4.1 L）相比，所有运动后（MICT：27.7±4.1，HIIT：30.6±4.8，SIT：32.2±6.6 L）的总运动后 O 消耗均升高（P<0.027，d>1.03）。与所有运动后相比，改良 SIT 运动增加了脂肪氧化（0.103±0.019 g·min）（CTRL：0.059±0.025，MICT：0.075±0.022，HIIT：0.081±0.021 g·min；P<0.007，d>1.30），并且与 HIIT 运动相比，改良 SIT 运动增加了脂肪氧化（P=0.046，d=0.87）。
结论
运动强度对中年成年人运动后的代谢有重要影响。
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