肥胖女性对高强度间歇训练的血浆容量变化：绝经状态和年龄的影响作用。

IF 3.9

Experimental gerontology Pub Date : 2025-01-01 DOI:10.1016/j.exger.2024.112664

Georges Jabbour , Maha Sellami , Horia-Daniel Iancu

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引用次数: 0

摘要

目的：本研究旨在探讨高强度间歇训练（HIIT）对肥胖女性血浆容量（PV）变化的影响，重点了解绝经状态和年龄如何影响这些变化。方法：我们招募了59名肥胖妇女（围绝经期和绝经后），年龄约为56.6 岁，参加了为期六周的HIIT计划。在干预前后测量健康、健康和PV。在每次训练中分别在两个时间点评估PV：热身后（PV1）和训练后（PV2）。这些测量是通过红细胞压积（Ht）和血红蛋白（Hb）值得出的。结果：干预导致人体测量值和血压显著降低（P ）结论：研究结果表明，HIIT可以有效提高肥胖绝经妇女的血浆容量，减缓与年龄相关的PV下降。

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Plasma volume variations in response to high intensity interval training in obese women: The influential role of menopausal status and age

Objective

This study aims to explore the effects of high-intensity interval training (HIIT) on plasma volume (PV) variations in obese women, with a focus on understanding how menopausal status and age influence these changes.

Methods

We enrolled fifty-nine obese women (perimenopausal and postmenopausal), aged approximately 56.6 years in a six-week HIIT program. Measurements of fitness, health, and PV were taken before and after the intervention. PV was assessed at two points during each session: at post-warm-up (PV1), and immediately post-training (PV2). These measurements were derived using hematocrit (Ht) and hemoglobin (Hb) values.

Results

The intervention led to notable reductions in anthropometric measures and blood pressure (P < 0.01). For all women pre- and post-HIIT comparisons revealed significant differences in the extent of PV reduction at all two points (P < 0.01). Multiple linear regression analysis revealed that age was a significant contributor to the decreases in plasma volume (PV) observed both after warm-up and following the supramaximal cycling test - SCT (r = 0.44 and r = 0.57). On the other hand, menopause status was an independent predictor for PV decreases after warm-up (r = 0.33) as well after SCT (r = 0.38). Following HIIT, only menopause status accounted for 19 % of the variation in PV decreases after warm-up and 21 % of the variation in PV decreases after SCT.