Viet Q Dinh, Malinda Hansen, K Austin Davis, Lindsey Peralez, Caroline A Rickards
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引用次数: 0
Abstract
Local muscle vibration (LMV) is a potential therapeutic approach to treat symptoms related to stroke by improving muscle function and blood flow. In this study, we assessed the acute cardiovascular and cerebral blood flow responses to LMV when applied to the anterior neck muscles in young and healthy participants. We hypothesized that LMV would elicit minimal acute cardiovascular responses. Ten human participants (5 male, 5 female) underwent LMV on both sides of their neck for 5-min each. Arterial pressure, middle cerebral artery blood velocity (MCAv), and common carotid artery (CCA) blood flow were measured continuously. There was no effect of LMV on mean arterial pressure (RIGHT, Baseline: 96.9±4.9 mmHg vs. LMV: 97.8±5.7 mmHg vs. Recovery: 98.2±4.6 mmHg, P=0.25; LEFT, Baseline: 96.0±7.8 mmHg vs. LMV: 97.0±7.7 mmHg vs. Recovery: 97.9±7.5 mmHg; P=0.23) or MCAv (RIGHT, Baseline: 61.4±10.5 cm/s vs. LMV: 62.0±10.7 cm/s vs. Recovery: 59.3±9.7 cm/s; P=0.15; LEFT, Baseline: 59.9±10.2 cm/s vs. LMV: 60.6±10.8 cm/s vs. Recovery: 58.4±10.2 cm/s; P=0.20). CCA diameter increased slightly with LMV on both sides of the neck (RIGHT, Baseline: 6.2±0.6 mm vs. LMV: 6.3±0.7 mm, P=0.03; LEFT, Baseline: 6.4±0.5 mm vs. LMV: 6.5±0.5 mm, P=0.03). However, this did not affect CCA blood flow (RIGHT, Baseline: 330.7±68.5 ml/min vs. LMV: 324.7±57.6 ml/min, P=0.59; LEFT, Baseline: 358.1±67.5 vs. LMV: 344.2±78.3 ml/min, P=0.30). These data provide evidence that a single acute session of LMV does not affect key cardiovascular parameters in young and healthy participants.
期刊介绍:
The Journal of Applied Physiology publishes the highest quality original research and reviews that examine novel adaptive and integrative physiological mechanisms in humans and animals that advance the field. The journal encourages the submission of manuscripts that examine the acute and adaptive responses of various organs, tissues, cells and/or molecular pathways to environmental, physiological and/or pathophysiological stressors. As an applied physiology journal, topics of interest are not limited to a particular organ system. The journal, therefore, considers a wide array of integrative and translational research topics examining the mechanisms involved in disease processes and mitigation strategies, as well as the promotion of health and well-being throughout the lifespan. Priority is given to manuscripts that provide mechanistic insight deemed to exert an impact on the field.