EFFECT OF ELECTRICAL-STIMULATION ON LUMBAR PARASPINAL MUSCLES
EFFECT OF ELECTRICAL-STIMULATION ON LUMBAR PARASPINAL MUSCLES
复制标题
DOI：
10.1097/00007632-199310000-00012
复制
发表时间：
1993-10-01
期刊：
影响因子：
3
通讯作者：
ILSTRUP, DM
中科院分区：
文献类型：
--
作者：
MCQUAIN, MT;SINAKI, M;ILSTRUP, DM
40名健康、久坐、绝经前妇女进入一项随机、单盲、对照研究，以确定电容耦合电刺激对腰椎椎旁肌强度和腰椎骨矿物质的影响。所有患者年龄在35至45岁之间，生理性雌激素正常。研究组接受下腰椎椎旁肌电刺激，每天两次，每次30分钟。在入组时和3、6、9和12个月后再次使用应变计测力计评估腰椎椎旁肌的等长肌力。在入组时以及6个月和12个月时，通过双能X线吸收法测量腰椎骨矿物质。3个月后，研究组等长肌力平均增加8.1%，对照组增加1.6%（P < 0.03）。该初始差异在研究的剩余时间内保持不变。在6、9和12个月时，两组之间未观察到进一步变化。得出的结论是，电容耦合电肌肉刺激可以，在整个1年的时间内，提高和保持独立于运动的腰椎旁肌肉的等长力量，但它对腰椎骨量没有可测量的影响。
Forty healthy, sedentary, premenopausal women were entered into a randomized, single-blind, controlled study to determine the effects of capacitively coupled electrical stimulation on the strength of the lumbar paraspinal muscles and the bone mineral in the lumbar spine. All were between 35 and 45 years of age and had normal physiologic estrogen. The study group received electrical stimulation over the lower lumbar paraspinal muscles for 30 minutes twice a day. Isometric strength of the lumbar paraspinal muscles was assessed with a strain-gauge dynamometer at entry and again after 3, 6, 9, and 12 months. Bone mineral was measured in the lumbar spine by dual-energy x-ray absorptiometry at entry and at 6 and 12 months. After 3 months, the median increase in isometric strength was 8.1% in the study group and 1.6% in the control group (P < 0.03). This initial difference was maintained during the remainder of the study. No further changes were seen between the two groups at 6, 9, and 12 months. It was concluded that capacitively coupled electrical muscle stimulation can, throughout a 1-year period, improve and maintain isometric strength of the lumbar paraspinal muscles independent of exercise, but it has no measurable effect on bone mass in the lumbar spine.