Dolbow David R, Gorgey Ashraf S, Dolbow James D, Gater David R
Hunter Holmes McGuire VA Medical Center, Spinal Cord Injury and Disorders Center , Richmond, Virginia ; Virginia Commonwealth University, Physical Medicine and Rehabilitation Department , Richmond, Virginia.
Top Spinal Cord Inj Rehabil. 2013 Summer;19(3):222-8. doi: 10.1310/sci1903-222.
Pressure ulcers (PUs) are a common secondary condition associated with spinal cord injury (SCI). PUs can potentially interfere with activities of daily living, occupational duties, and rehabilitation programs, and in severe cases they may threaten life. Functional electrical stimulation (FES) cycling has been proposed as an activity that may decrease the risk of PUs through the promotion of increased blood flow and thickening of the gluteus maximus. The purpose of this pilot study was to measure the effects of home-based FES cycling on the average and maximal seat pressure of wheelchair-reliant individuals with SCI.
Eight male veterans with C5-T6 SCI participated in FES cycling 3 times per week. Cycling parameters were individualized depending on the comfort of the participants and the amount of current needed to perform the cycling activity. Pressure mapping was completed immediately before and after the 8 weeks of FES cycling with the measurement performed by a force sensitive application (FSA) 4 pressure mapping system.
The mean average seat pressure decreased by 3.69 ± 4.46 mm Hg (35.57 ± 11.99 to 31.88 ± 13.02), while the mean maximum seat pressure decreased by 14.56 ±18.45 mm Hg (112 ± 34.73 to 98.36 ± 25.89). Although neither measurement was statistically significant, there was a strong trend toward a reduction in average and maximal seat pressure (P = .052 and P = .061, respectively).
The positive trend of decreased seat pressure in our study creates incentive for further investigation of the effects of electrical stimulation activities on seat pressure and the prevention of PUs.
压疮（PU）是与脊髓损伤（SCI）相关的常见继发性病症。压疮可能会干扰日常生活活动、工作职责和康复计划，严重时可能会危及生命。功能性电刺激（FES）骑行被认为是一种可能通过促进血流量增加和臀大肌增厚来降低压疮风险的活动。本初步研究的目的是测量居家FES骑行对依赖轮椅的SCI患者平均和最大座位压力的影响。
8名患有C5-T6脊髓损伤的男性退伍军人每周进行3次FES骑行。骑行参数根据参与者的舒适度和进行骑行活动所需的电流量进行个性化设置。在FES骑行8周前后，使用力敏应用（FSA）4压力映射系统进行测量，完成压力映射。
平均座位压力下降了3.69±4.46毫米汞柱（从35.57±11.99降至31.88±13.02），而平均最大座位压力下降了14.56±18.45毫米汞柱（从112±34.73降至98.36±25.89）。尽管两项测量结果均无统计学意义，但平均和最大座位压力有明显的下降趋势（分别为P = 0.052和P = 0.061）。
我们研究中座位压力下降的积极趋势为进一步研究电刺激活动对座位压力的影响以及预防压疮提供了动力。
