Cardiovascular handgrip responses during treadmill exercise: randomized pilot trial.

4区医学

Annals of translational medicine Pub Date : 2024-10-20 Epub Date: 2024-10-15 DOI:10.21037/atm-24-59

Marvyn de Santana do Sacramento, Josias Melo Leite, Maria Williane de Sousa Ribeiro, Ramon Martins Barbosa, Tailma Costa de Jesus, Pedro Elias Santos Souza, Alice Miranda de Oliveira, Jefferson Petto

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引用次数: 0

Abstract

Background: The isometric exercise performed using the handgrip (HG) acutely promotes elevation of systolic blood pressure (SBP) and diastolic blood pressure (DBP), and in a non-consensual manner among articles elevation or maintenance of heart rate (HR). Currently, although there is a vast literature on the hemodynamic effects of interval training and isometric exercise with HG alone, there is still no consistent evidence of such adjustments occurring in the association between the two. Therefore, the objective of this study was to describe the acute hemodynamic responses found only during interval training and when combined with isometric contraction with HG.

Methods: This is a pilot study of a crossover clinical trial. Seven male volunteers, aged 24±3.9 years, underwent three protocols on an ergometric treadmill, with a 3-minute warm-up at 30% of heart rate reserve (HRR), four sprints 2 minutes at 50% HRR and active intervals at the same speed as the warm-up. Randomization was carried out in a simple random manner. The protocols were classified according to the use of HG during sprints, as follows: PI = without HG; PII = HG 30% of handgrip strength (HGS) and PIII = 60% of HGS). Variations (Δ) in HR, double product (DP), SBP and DBP were evaluated.

Results: The presence of HG did not change HR behavior, but it increased DP (PI: 10,472±2,539 vs. PII: 12,217±1,933 vs. PIII: 13,369±3,089) through SBP, which in PI had a plateau behavior of 15±22.2 mmHg, while PII varied with an average of 41±12.2 mmHg and PIII 47±11.1 mmHg, in the 4^th sprint. DBP fell in PI with 12±13.2 mmHg, while PII and PIII showed an drop of 0±19.6 and 6±13.0 mmHg in the last sprint, respectively.

Conclusions: The use of HG during interval training directly modulates hemodynamic variables, promoting an increase in SBP elevation, attenuation of the drop in DBP and an increase in DP, without an increase in HR.

Trial registration: RBR-78fhyrf. Available in https://ensaiosclinicos.gov.br/rg/RBR-78fhyrf.

查看原文本刊更多论文

跑步机运动时的心血管手握反应：随机试验。

背景：使用手握力器（HG）进行的等长运动会迅速促进收缩压（SBP）和舒张压（DBP）的升高，并以非共识的方式促进或维持心率（HR）。目前，虽然有大量文献研究了间歇训练和单独使用 HG 的等长运动对血液动力学的影响，但仍没有一致的证据表明两者之间的关联会产生这种调整。因此，本研究的目的是描述仅在间歇训练期间和结合使用 HG 的等长收缩时发现的急性血液动力学反应：这是一项交叉临床试验的试点研究。七名年龄为 24±3.9 岁的男性志愿者在测力跑步机上接受了三种方案的训练，包括以 30% 的心率储备（HRR）进行 3 分钟的热身，以 50% 的心率储备进行 2 分钟的四次冲刺，以及以与热身相同的速度进行主动间歇训练。随机化以简单随机的方式进行。根据冲刺时使用 HG 的情况，对方案进行了如下分类：PI = 不使用 HG；PII = HG 占手握强度（HGS）的 30%；PIII = HGS 的 60%）。对心率、双乘积（DP）、SBP 和 DBP 的变化（Δ）进行了评估：HGS 的存在没有改变心率的变化，但通过 SBP 增加了 DP（PI：10,472±2,539 vs. PII：12,217±1,933 vs. PIII：13,369±3,089），在第 4 次冲刺时，PI 的 SBP 为 15±22.2 mmHg，而 PII 平均为 41±12.2 mmHg，PIII 为 47±11.1 mmHg。在最后一次冲刺中，PI 的 DBP 下降了 12±13.2 mmHg，而 PII 和 PIII 分别下降了 0±19.6 和 6±13.0 mmHg：结论：在间歇训练中使用 HG 可直接调节血液动力学变量，促进 SBP 升高、DBP 下降减弱和 DP 增加，而不增加 HR：试验注册：RBR-78fhyrf。见 https://ensaiosclinicos.gov.br/rg/RBR-78fhyrf。

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

Annals of translational medicine Multiple-

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0.00%

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769

期刊介绍： The Annals of Translational Medicine (Ann Transl Med; ATM; Print ISSN 2305-5839; Online ISSN 2305-5847) is an international, peer-reviewed Open Access journal featuring original and observational investigations in the broad fields of laboratory, clinical, and public health research, aiming to provide practical up-to-date information in significant research from all subspecialties of medicine and to broaden the readers’ vision and horizon from bench to bed and bed to bench. It is published quarterly (April 2013- Dec. 2013), monthly (Jan. 2014 - Feb. 2015), biweekly (March 2015-) and openly distributed worldwide. Annals of Translational Medicine is indexed in PubMed in Sept 2014 and in SCIE in 2018. Specific areas of interest include, but not limited to, multimodality therapy, epidemiology, biomarkers, imaging, biology, pathology, and technical advances related to medicine. Submissions describing preclinical research with potential for application to human disease, and studies describing research obtained from preliminary human experimentation with potential to further the understanding of biological mechanism underlying disease are encouraged. Also warmly welcome are studies describing public health research pertinent to clinic, disease diagnosis and prevention, or healthcare policy.  With a focus on interdisciplinary academic cooperation, ATM aims to expedite the translation of scientific discovery into new or improved standards of management and health outcomes practice.