Response to the letter "Blood flow restricted training in older adults: Consider standardized methodology for future investigations?"
Response to the letter "Blood flow restricted training in older adults: Consider standardized methodology for future investigations?"
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对“老年人血流受限训练：考虑未来调查的标准化方法？”的信件的回应
DOI：
10.1093/gerona/glv178
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Yasuda T. Nakajima T.
中科院分区：
文献类型：
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作者：
鍋倉賢治;岩山海渡;丹治史弥;河合謙一;黒川心;木下なつみ;嶋津航;Yasuda T. Nakajima T.
在我们的参与者(2)中，臂部收缩压(SBP；平均值±SD)为135±16 mm Hg，臂围为26.6±2.0 cm。Loenneke博士和Abe博士指出，许多参与者在锻炼前在动脉流入阻断的情况下进行了训练，气压为200-270毫米汞柱(袖带压力：30毫米汞)(手臂为30毫米宽，KAATSU Master，KAATSU Japan Co.，日本东京)。然而，我们可以在每组练习(带袖带)之前和之后立即(2；未发表的观察结果)在BFR手臂上检测到桡动脉的搏动和手指脉搏饱和度(脉搏血氧仪，9500型，Nning Medicsal Inc.，普利茅斯，明尼苏达州)。此外，以前的研究表明，160 mm Hg的气压(袖带压力：30 mm Hg)是为了限制(39%的基线，而不是闭塞)动脉流入(上臂SBP：116±3 mm Hg，臂围：28.8±3.2 cm)(3)。事实上，动脉闭塞需要300 mm Hg的气压(袖带压力：100 mm Hg)(上臂SBP：123±11 mm Hg，臂围28.0±2.6 cm)(4)。因此，这些结果表明，在我们的条件下，即使对标准参与者(SBP和臂围；1)使用高水平的气压(高于SBP，袖带狭窄)，也很难阻断动脉流入。在这项研究中，血流动力学参数(心率和血压)、动脉僵硬(心踝血管指数和踝臂压指数)、血管内皮功能(血流介导的扩张)、凝血因子(纤维蛋白/纤维蛋白原降解产物和d-二聚体)和肌肉损伤(肌酸激酶)在治疗前后没有变化。因此，弹力带BFR训练似乎是相对安全的。然而，我们觉得手臂的气压(200-270毫米汞柱)太高(3-8)，所以BFR训练需要非常注意侧面
In our participants (2), brachial systolic blood pressure (SBP; mean±SD) was 135±16 mmHg, and mid-arm circumference was 26.6±2.0 cm. Drs. Loenneke and Abe pointed out that many participants underwent the training under the occlusion of arterial inflow prior to exercise with air pressures of 200–270 mmHg (cuff pressure: 30 mmHg)(30-mm width for the arm, KAATSU Master, KAATSU Japan Co., Ltd., Tokyo, Japan). However, we could detect pulsation of the radial artery and finger pulse saturation (pulse oximeter, Model 9500, Nonin Medicsal Inc., Plymouth, MN) signals in the BFR arm before and immediately after (with cuff) each set of exercises (2; unpublished observations). In addition, previously it has been shown that air pressure of 160 mmHg (cuff pressure: 30 mmHg) is to restrict (39% of baseline, not occlude) arterial inflow (brachial SBP: 116±3 mmHg, mid-arm circumference: 28.8±3.2 cm)(3). In fact, air pressure of 300 mmHg (cuff pressure: 100 mmHg) was needed for arterial occlusion (brachial SBP: 123±11 mmHg, mid-arm circumference: 28.0±2.6 cm)(4). Thus, these results indicate that it is very difficult to occlude the arterial inflow in our conditions even if high level of air pressure (over SBP with a narrow cuff) is used for standard participants (SBP and midarm circumference; 1).In this study, there were no changes between pre-and postresults in hemodynamic parameters (heart rate and blood pressure), arterial stiffness (cardio-ankle vascular index and ankle-brachial pressure index), vascular endothelial function (flow-mediated dilatation), coagulation factors (fibrin/fibrinogen degradation products and d-dimer), and muscle damage (creatine kinase). Consequently, it appears that elastic band BFR training was relatively safe. However, we feel that the air pressure (200–270 mmHg) for arms was too high (3–8), so BFR training required paying great attention to the side