Aim: Whole body vibration (WBV) is thought to improve blood flow and autonomic balance and thereby induce a relaxation effect, which suggests its use for stress management. However, the relaxation effect of WBV traini...Aim: Whole body vibration (WBV) is thought to improve blood flow and autonomic balance and thereby induce a relaxation effect, which suggests its use for stress management. However, the relaxation effect of WBV training has not been objectively evaluated thus far. The purpose of this study was to determine the biological response to WBV training by measuring peripheral blood flow and salivary components using non-invasive techniques. Methods: Participants included 10 healthy volunteers (7 men, 3 women;mean age 33.8 ± 2.3) who provided oral consent and served as their own control. Each participant performed 15 types of stretching exercises for 10.5 min on the Power Plate? and cutaneous blood flow and salivary components were measured before and after the exercise. One week later, all participants performed the same exercise regimen for 10.5 min on a non-vibratory plate, and blood flow measurement and salivary tests were performed in a similar manner. Cutaneous blood flow was measured in the 4th digit for 1 min using the laser speckle flowgraphy. Saliva samples were evaluated for cortisol levels and α-amylase activity. To determine the effects of stretching exercises on the Power Plate? vs a non-vibratory plate, the differences in pre- and post-exercise peripheral blood flow, salivary cortisol levels, and salivary α-amylase activity were statistically evaluated by the t-test. Results: Mean blood flow before and after the exercise on the Power Plate? was 122.0 ± 54.2 and 156.7 ± 51.2, respectively;on a non-vibratory plate, blood flow was 136.6 ± 47.9 and 146.3 ± 38.3, respectively. The differences in pre-exercise and post-exercise values of the two training methods were not significant (p = 0.215). Mean cortisol levels before and after the exercise on the Power Plate? were 266.6 ± 125 and 204.9 ± 61.6, respectively;on a non-vibratory plate, the levels were 439.0 ± 121.7 and 425.8 ± 118.8, respectively. The differences in pre-exercise and post-exercise values of the two training methods were not significant (p = 0.384). Mean α-amylase activity before and after the exercise on the Power Plate? was 3.74 ± 2.89 and 5.40 ± 3.76, respectively;on a non-vibratory plate, the activity was 3.95 ± 2.23 and 3.28 ± 1.73. The differences in pre-exercise and post-exercise values of the two training methods were not significant (p = 0.115). Conclusion: Our results showed that a brief WBV training increased peripheral blood flow, reduced cortisol levels, and increased α-amylase activity. WBV appears to regulate autonomic activity, in particular, suppress sympathetic activity and improve bodily functions. Thus WBV exercise may be conductive for stress management, but further investigation is warranted to determine the optimal duration of WBV training for stress relief.展开更多
目的:评估左布比卡因硬膜外复合全身麻醉对结肠手术的影响。方法:择期行结肠癌手术的60例患者随机、双盲分为4组,对照组(S组)、0.125%左布比卡因组(L1组)、0.25%左布比卡因组(L2组)及0.5%左布比卡因组(L3组),各15例。S组硬外注射首量生...目的:评估左布比卡因硬膜外复合全身麻醉对结肠手术的影响。方法:择期行结肠癌手术的60例患者随机、双盲分为4组,对照组(S组)、0.125%左布比卡因组(L1组)、0.25%左布比卡因组(L2组)及0.5%左布比卡因组(L3组),各15例。S组硬外注射首量生理盐水10 m L,随后5 m L/h泵注至术毕,L1、L2、L3组则选用左布比卡因。硬膜外穿刺后行麻醉诱导,记录入室5 min、插管1 min、切皮、探查、开刀1 h、术毕、拔管、离开复苏室八个时点的平均血压、心率,并测血糖、皮质醇,记录麻醉时间、复苏室时间,出血量、输液量、不良反应,异丙酚、瑞芬太尼、麻黄素、芬太尼总量。结果:S组复苏时间长于其他3组,L1组瑞芬太尼、芬太尼大于L2、L3组,L3组麻黄素大于其他3组;L1组血糖高于L2、L3组,皮质醇高于L3组,L3组低血压例数高于其他3组。结论:0.25%左布比卡因硬膜外输注可减少应激反应,节俭阿片药物,减少复苏时间,不增加麻黄素使用。展开更多
文摘Aim: Whole body vibration (WBV) is thought to improve blood flow and autonomic balance and thereby induce a relaxation effect, which suggests its use for stress management. However, the relaxation effect of WBV training has not been objectively evaluated thus far. The purpose of this study was to determine the biological response to WBV training by measuring peripheral blood flow and salivary components using non-invasive techniques. Methods: Participants included 10 healthy volunteers (7 men, 3 women;mean age 33.8 ± 2.3) who provided oral consent and served as their own control. Each participant performed 15 types of stretching exercises for 10.5 min on the Power Plate? and cutaneous blood flow and salivary components were measured before and after the exercise. One week later, all participants performed the same exercise regimen for 10.5 min on a non-vibratory plate, and blood flow measurement and salivary tests were performed in a similar manner. Cutaneous blood flow was measured in the 4th digit for 1 min using the laser speckle flowgraphy. Saliva samples were evaluated for cortisol levels and α-amylase activity. To determine the effects of stretching exercises on the Power Plate? vs a non-vibratory plate, the differences in pre- and post-exercise peripheral blood flow, salivary cortisol levels, and salivary α-amylase activity were statistically evaluated by the t-test. Results: Mean blood flow before and after the exercise on the Power Plate? was 122.0 ± 54.2 and 156.7 ± 51.2, respectively;on a non-vibratory plate, blood flow was 136.6 ± 47.9 and 146.3 ± 38.3, respectively. The differences in pre-exercise and post-exercise values of the two training methods were not significant (p = 0.215). Mean cortisol levels before and after the exercise on the Power Plate? were 266.6 ± 125 and 204.9 ± 61.6, respectively;on a non-vibratory plate, the levels were 439.0 ± 121.7 and 425.8 ± 118.8, respectively. The differences in pre-exercise and post-exercise values of the two training methods were not significant (p = 0.384). Mean α-amylase activity before and after the exercise on the Power Plate? was 3.74 ± 2.89 and 5.40 ± 3.76, respectively;on a non-vibratory plate, the activity was 3.95 ± 2.23 and 3.28 ± 1.73. The differences in pre-exercise and post-exercise values of the two training methods were not significant (p = 0.115). Conclusion: Our results showed that a brief WBV training increased peripheral blood flow, reduced cortisol levels, and increased α-amylase activity. WBV appears to regulate autonomic activity, in particular, suppress sympathetic activity and improve bodily functions. Thus WBV exercise may be conductive for stress management, but further investigation is warranted to determine the optimal duration of WBV training for stress relief.
文摘目的:评估左布比卡因硬膜外复合全身麻醉对结肠手术的影响。方法:择期行结肠癌手术的60例患者随机、双盲分为4组,对照组(S组)、0.125%左布比卡因组(L1组)、0.25%左布比卡因组(L2组)及0.5%左布比卡因组(L3组),各15例。S组硬外注射首量生理盐水10 m L,随后5 m L/h泵注至术毕,L1、L2、L3组则选用左布比卡因。硬膜外穿刺后行麻醉诱导,记录入室5 min、插管1 min、切皮、探查、开刀1 h、术毕、拔管、离开复苏室八个时点的平均血压、心率,并测血糖、皮质醇,记录麻醉时间、复苏室时间,出血量、输液量、不良反应,异丙酚、瑞芬太尼、麻黄素、芬太尼总量。结果:S组复苏时间长于其他3组,L1组瑞芬太尼、芬太尼大于L2、L3组,L3组麻黄素大于其他3组;L1组血糖高于L2、L3组,皮质醇高于L3组,L3组低血压例数高于其他3组。结论:0.25%左布比卡因硬膜外输注可减少应激反应,节俭阿片药物,减少复苏时间,不增加麻黄素使用。
