Secció de Fisiologia, Departament de Biologia Cellular, Fisiologia i Immunologia, Facultat de Biologia, Universitat de Barcelona, 08028 Barcelona, Spain.
Departament de Ciències Fisiològiques, Facultat de Medicina i Ciències de la Salut, Campus de Bellvitge, Universitat de Barcelona, 08907 Barcelona, Spain.
Int J Environ Res Public Health. 2022 Jan 3;19(1):498. doi: 10.3390/ijerph19010498.
(1) Background: half-marathon races are popular among recreational runners, with increases in participation among middle-aged and women. We aimed to determine the effects of two half-marathon training programs on hematological and biochemical markers in middle-aged female recreational runners; (2) Methods: ten women (40 ± 7 years) followed moderate intensity continuous training (MICT), based on running volume below 80% V˙Omax, and another ten women followed high intensity interval training (HIIT) at 80%-100% V˙Omax, with less volume, and combined with eccentric loading exercise. Hematology, plasma osmolality, and plasma markers of metabolic status, muscle damage, inflammatory, and oxidative stress were measured before (S1) and after (S2) training and 24 h after the half-marathon (S3); (3) Results: both training programs had similar moderate effects at S2. However, the acute response at S3 induced different alterations. There was a greater decrease in cholesterol and triglyceride levels in MICT and reductions in markers of damage and inflammation in HIIT. Greater variability in some plasma markers at S3 in MICT suggests that there is inter-individual variability in the response to training; (4) Conclusions: HIIT led to better adaptation to the competition maybe because of the repeated exposure to higher oxygen consumption and eccentric loading exercise.
(1) 背景：半程马拉松比赛在休闲跑者中很受欢迎，参与者中年人和女性的比例有所增加。我们旨在确定两种半程马拉松训练计划对中年女性休闲跑者血液学和生化标志物的影响；(2) 方法：10 名女性（40 ± 7 岁）进行中等强度持续训练（MICT），基于跑量低于 80% V˙Omax，另外 10 名女性进行高强度间歇训练（HIIT），跑量为 80%-100% V˙Omax，但结合了离心负荷运动。在训练前（S1）和后（S2）以及半程马拉松后 24 小时（S3）测量血液学、血浆渗透压和代谢状态、肌肉损伤、炎症和氧化应激的血浆标志物；(3) 结果：两种训练计划在 S2 时都有类似的适度效果。然而，S3 的急性反应引起了不同的变化。MICT 组胆固醇和甘油三酯水平下降更大，HIIT 组损伤和炎症标志物减少。MICT 在 S3 时一些血浆标志物的更大变异性表明，对训练的反应存在个体间的差异；(4) 结论：HIIT 可能因为反复暴露于更高的耗氧量和离心负荷运动而导致对比赛的更好适应。
