Highlighting the effect of reduced training volume on maintaining hormonal adaptations obtained from periodized resistance training in sarcopenic older women.

IF 2.7 Q3 ENDOCRINOLOGY & METABOLISM

Expert Review of Endocrinology & Metabolism Pub Date : 2024-03-01 Epub Date: 2023-12-16 DOI:10.1080/17446651.2023.2294091

Zeinab Hooshmandi, Farhad Daryanoosh, Amir Hossein Ahmadi Hekmatikar, D Maryama Awang Daud

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引用次数: 0

Abstract

Background: This study investigated the impact of the High Intensity Interval Resistance Training (HIIRT) protocol on hormonal changes in older women.

Research design and methods: Forty sarcopenic women were divided into an experimental group (EX = 30) and a control group (C = 10). The EX-group was further divided into Maintenance Training 1 (MT1 = 10), Maintenance Training 2 (MT2 = 10), and Detraining (DT = 10). The participants underwent 8 weeks of resistance training, consisting of hypertrophy and strength cycles. Following this, the EX-group had a 4-week period with no exercise or a reduced training volume. Measurements were taken at three time points.

Results: After 8 weeks, the EX-group showed significant improvements in Insulin Like Growth Factor-1 (IGF-1), Myostatin (MSTN), Follistatin (Fstn), Growth Hormone (GH) and Cortisol (Cort) compared to the control group. During the volume reduction period, there were no significant differences between MT1 and MT2 groups, but both groups saw increases in IGF-1, Fstn, GH, and decreases in MSTN and Cort compared to the DT group.

Conclusions: These findings suggest that performing at least one training session per week with the HIIRT protocol is crucial for maintaining hormonal adaptations in sarcopenic older women.

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强调减少训练量对维持肌肉疏松老年妇女通过周期性阻力训练获得的荷尔蒙适应性的影响。

研究背景本研究调查了高强度间歇阻力训练（HIIRT）方案对老年妇女荷尔蒙变化的影响：40 名肌肉疏松妇女被分为实验组（EX = 30）和对照组（C = 10）。EX 组又分为维持训练 1（MT1 = 10）、维持训练 2（MT2 = 10）和脱离训练（DT = 10）。参与者接受为期 8 周的阻力训练，包括肥大和力量循环训练。之后，EX 组在 4 周内不进行锻炼或减少训练量。在三个时间点进行测量：8 周后，与对照组相比，EX 组的胰岛素样生长因子-1（IGF-1）、肌生长因子（MSTN）、软骨素（Fstn）、生长激素（GH）和皮质醇（Cort）均有显著改善。在减少运动量期间，MT1 组和 MT2 组之间没有显著差异，但与 DT 组相比，两组的 IGF-1、Fstn 和 GH 均有所增加，而 MSTN 和 Cort 均有所减少：这些研究结果表明，每周至少进行一次 HIIRT 方案训练对于维持肌肉疏松老年妇女的荷尔蒙适应性至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Expert Review of Endocrinology & Metabolism ENDOCRINOLOGY & METABOLISM-

CiteScore

4.80

自引率

0.00%

发文量

期刊介绍： Implicated in a plethora of regulatory dysfunctions involving growth and development, metabolism, electrolyte balances and reproduction, endocrine disruption is one of the highest priority research topics in the world. As a result, we are now in a position to better detect, characterize and overcome the damage mediated by adverse interaction with the endocrine system. Expert Review of Endocrinology and Metabolism (ISSN 1744-6651), provides extensive coverage of state-of-the-art research and clinical advancements in the field of endocrine control and metabolism, with a focus on screening, prevention, diagnostics, existing and novel therapeutics, as well as related molecular genetics, pathophysiology and epidemiology.