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1.
Differences in quadriceps femoris muscle torque when using a clinical electrical stimulator versus a portable electrical stimulator 总被引:1,自引:0,他引:1
BACKGROUND AND PURPOSE: There have been conflicting views and evidence reported in the literature concerning differences in muscle torque-generating capacities between clinical ("plug-in") console devices whose power source is provided by an electrical outlet (60 Hz, alternating current-driven) and portable electrical muscle stimulators (smaller, battery-operated stimulators). The purpose of this study was to compare the torque-generating capacity of the quadriceps femoris muscle during neuromuscular electrical stimulation (NMES) between a clinical neuromuscular electrical stimulator (VersaStim 380) and a portable neuromuscular electrical stimulator (Empi 300PV). SUBJECTS: Forty volunteer subjects with no known knee, neurological, or cardiovascular pathology (22 male, 18 female) participated in the study. METHODS: All subjects were tested with the clinical and portable stimulators on 2 separate days. Peak isometric torque of the quadriceps femoris muscle was measured using a Biodex dynamometer. Peak isometric quadriceps femoris muscle torque achieved during NMES and the average quadriceps femoris muscle torque integral produced over 10 NMES contractions were measured for each stimulator. Subjects also rated the amount of pain they experienced during the 10 NMES contractions using a numeric pain scale. Paired t tests were used to compare mean differences in measured variables between stimulator conditions. RESULTS: There were no differences in the peak torque or numeric pain ratings during the electrically stimulated contractions between stimulator conditions. The Empi 300PV produced a greater average torque integral compared with the VersaStim 380 during 10 electrically stimulated contractions (Empi 300PV=988.6-/+330.4 N.m-s, Versastim 380=822.7-/+292.6 N.m-s). DISCUSSION AND CONCLUSION: The portable Empi 300PV stimulator produced comparable levels of average peak torque at comparable levels of discomfort to those produced by the VersaStim 380 clinical stimulator. The Empi 300PV maintained greater amounts of torque production during a 10-contraction training session compared with the VersaStim 380. Based on these data, we believe that the Empi 300PV has the potential to produce adequate levels of torque production for NMES quadriceps femoris muscle performance training. Further study is needed to determine the effectiveness of using the Empi 300PV for quadriceps femoris muscle performance training. 相似文献
2.
Thiago Torres Matta Francisco Xavier Nascimento Gabriel S. Trajano Roberto Simão Jeffrey Michael Willardson Liliam Fernandes Oliveira 《Clinical physiology and functional imaging》2017,37(2):137-142
One of the fundamental adaptations observed with resistance training (RT) is muscle hypertrophy. Conventional and isokinetic machines provide different forms of mechanical stress, and it is possible that these two training modes could promote differing degrees of hypertrophic adaptations. There is a lack of data comparing the selective hypertrophy of the quadriceps musculature after training with a conventional knee extension machine versus an isokinetic machine. The purpose of this study was to evaluate the selective hypertrophy of the quadriceps musculature and knee extension maximal isometric torque after 14 weeks of conventional versus isokinetic RT. Thirty-five men were assigned to three groups: control group and training groups (conventional and isokinetic) performed three sets of unilateral knee extensions per session with a progressive loading scheme twice a week. Prior to and following the intervention, maximal isometric knee extensor torque was measured using an isokinetic dynamometer, and muscle thickness (MT) of quadriceps femoris muscles was assessed via ultrasound. The results indicated non-uniform changes in MT between the muscles that comprise the quadriceps femoris group. For the conventional group, significantly greater increases in rectus femoris thickness were evident versus all other quadriceps muscles (14%). For the isokinetic group, increases in RF thickness (11%) were significantly greater in comparison with the vastus intermedius only. Although the muscle thickness did not increase for all the quadriceps femoris muscles, the relative rectus femoris adaptation suggested a selective hypertrophy favouring this portion. 相似文献
3.
Effects of feedback stimulation training and cyclical electrical stimulation on knee extension in hemiparetic patients 总被引:1,自引:0,他引:1
Positional feedback stimulation training and cyclical electrical stimulation were used in combination as a treatment for facilitating knee extension in hemiparetic patients. Forty adult hemiparetic patients who demonstrated minimal active control of their quadriceps femoris muscles were randomly assigned to control or study groups. The control patients received a program of physical therapy, and the study patients received the positional feedback stimulation training in addition to their therapy program. The stimulation training provided the patient with immediate auditory and visual feedback of his changing joint angle while he voluntarily extended his knee. When the patient reached a near maximal extension effort, electrical stimulation of the quadriceps femoris muscle was automatically triggered, completing the patient's available range of motion in extension. The stimulation training was supplemented with two hours of cyclical electrical stimulation daily. At the end of four weeks, analysis revealed a statistically significant increase in knee extension torque and active synergistic range of motion in the study group. No change was noted in their ability to extend their knees using isolated quadriceps femoris muscle control. This study suggests that positional feedback stimulation training is effective when used to augment a facilitation program for improving knee extension control in hemiparetic patients. 相似文献
4.
Both electrical stimulation and electromyographic biofeedback have been shown to be more effective than voluntary isometric exercise alone in the recovery of quadriceps femoris muscle force following anterior cruciate ligament (ACL) reconstruction. In a comparison of these two modalities, 30 patients with ACL reconstruction were randomly assigned to either a group receiving electrical stimulation in conjunction with voluntary isometric exercise or a group receiving biofeedback in conjunction with voluntary isometric exercise. Following 6 weeks of a rehabilitative exercise protocol, the quadriceps femoris muscle isometric peak torque in the operative limb was compared with that in the nonoperative limb. A t test of independent samples indicated that the biofeedback group recovered a significantly greater percentage of their nonoperative limb's peak torque than did the electrical stimulation group. Measurements of active knee extension were taken at weeks 1, 2, 4, and 6 of the exercise program. A two-way analysis of variance (groups x weeks) indicated no significant difference between the rate at which each group recovered full active extension. The authors concluded that biofeedback is more effective than electrical stimulation in facilitating the recovery of peak torque and that biofeedback is comparable to electrical stimulation in the recovery of active knee extension. 相似文献
5.
Seol Park Yu-Min Ko Gwon-Uk Jang Yoon-Tae Hwang Ji-Won Park 《Journal of Physical Therapy Science》2014,26(11):1685-1688
[Purpose] This study attempted to identify how genu varum or valgum affects the
electromyographic activities of the vastus medialis, vastus lateralis, and rectus femoris
during knee isometric contraction. [Subjects] Fifty-two healthy young adults were enrolled
in this study. They were enrolled and classified into three groups by knee alignment
conditions: the genu varum, genu valgum, and control groups. [Methods] The
electromyographic activity ratio of the vastus medialis to the vastus lateralis and rectus
femoris were calculated using the percentage of maximum voluntary contraction. The
participants contracted their quadriceps during isometric contraction at 30 and 60° of
knee flexion. [Results] The genu varum group had more activity in the vastus medialis than
in the vastus lateralis and rectus femoris, whereas the genu valgum group had more
activity in the vastus lateralis and rectus femoris than in the vastus medialis. There was
a significant difference in the muscle activity ratio between the vastus medialis and
vastus lateralis by angle of knee flexion degree only in the genu valgum. There were no
significant differences in any of the three groups in terms of the muscle activity ratio
of the vastus medialis to the rectus femoris by angle of knee flexion. [Conclusion] The
quadriceps femoris was used for different strategies according to knee alignment during
isometric contraction at 30 and 60°. This study suggests that rehabilitation training
programs used to strengthen the quadriceps should consider the knee alignment conditions
of the target subjects.Key words: Electromyography, Quadriceps muscle, Isometric contraction 相似文献
6.
[Purpose] The aim of present study was to investigate the effects of isometric
quadriceps exercise on muscle strength, pain, and function in knee osteoarthritis.
[Subjects and Methods] Outpatients (N=42, 21 per group; age range 40–65
years; 13 men and 29 women) with osteoarthritis of the knee participated in the study. The
experimental group performed isometric exercises including isometric quadriceps, straight
leg raising, and isometric hip adduction exercise 5 days a week for 5 weeks, whereas the
control group did not performed any exercise program. The outcome measures or dependent
variables selected for this study were pain intensity, isometric quadriceps strength, and
knee function. These variables were measured using the Numerical Rating Scale (NRS),
strength gauge device, and reduced WOMAC index, respectively. All the measurements were
taken at baseline (week 0) and at the end of the trial at week 5. [Results] In
between-group comparisons, the maximum isometric quadriceps strength, reduction in pain
intensity, and improvement in function in the isometric exercise group at the end of the
5th week were significantly greater than those of the control group (p<0.05).
[Conclusion] The 5-week isometric quadriceps exercise program showed beneficial effects on
quadriceps muscle strength, pain, and functional disability in patients with
osteoarthritis of the knee.Key words: Isometric exercise, Osteoarthritis, Rehabilitation 相似文献
7.
Jing-guang Qian Ke Rong Zhenyun Qian Chen Wen Songning Zhang 《Journal of Physical Therapy Science》2015,27(11):3541-3544
[Purpose] The purpose of the study was to design and implement a multichannel dynamic
functional electrical stimulation system and investigate acute effects of functional
electrical stimulation of the tibialis anterior and rectus femoris on ankle and knee
sagittal-plane kinematics and related muscle forces of hemiplegic gait. [Subjects and
Methods] A multichannel dynamic electrical stimulation system was developed with 8-channel
low frequency current generators. Eight male hemiplegic patients were trained for 4 weeks
with electric stimulation of the tibia anterior and rectus femoris muscles during walking,
which was coupled with active contraction. Kinematic data were collected, and muscle
forces of the tibialis anterior and rectus femoris of the affected limbs were analyzed
using a musculoskelatal modeling approach before and after training. A paired sample
t-test was used to detect the differences between before and after training. [Results] The
step length of the affected limb significantly increased after the stimulation was
applied. The maximum dorsiflexion angle and maximum knee flexion angle of the affected
limb were both increased significantly during stimulation. The maximum muscle forces of
both the tibia anterior and rectus femoris increased significantly during stimulation
compared with before functional electrical stimulation was applied. [Conclusion] This
study established a functional electrical stimulation strategy based on hemiplegic gait
analysis and musculoskeletal modeling. The multichannel functional electrical stimulation
system successfully corrected foot drop and altered circumduction hemiplegic gait
pattern.Key words: Hemiplegia, Functional electrical stimulation, Gait 相似文献
8.
[Purpose] The purpose of this study was to clarify the relationship between muscle echo intensity measured with ultrasound and the isokinetic strength of each of the three superficial quadriceps femoris muscles in healthy young adults. [Participants and Methods] We measured the echo intensity of the three superficial muscles of the quadriceps femoris in 25 healthy adults (10 males and 15 females; mean age, 22.3 years) using ultrasound. Moreover, we obtained the maximum force during isokinetic knee extension at 60°/s using an isokinetic dynamometer. [Results] In males and females, a significant negative correlation between echo intensity and muscle strength was found in the VM (r=−0.65 and r=−0.63, respectively). [Conclusion] In both males and females, only the muscle echo intensity of the vastus medialis was found to have a negative correlation with the maximum force during isokinetic knee extension at 60°/s. Our data lay the foundation for simplifying and rationally performing the measurement of muscle echo intensity of the quadriceps femoris. And it would therefore be sufficient to only measure the VM to clarify a relationship between EI and maximum isokinetic force in the quadriceps.Key words: Echo intensity, Isokinetic strength, Quadriceps femoris muscle 相似文献
9.
目的:观察变速变阻力运动训练对前交叉韧带(ACL)损伤后关节镜下自体腘绳肌腱重建术后患者的康复疗效.方法:ACL损伤后自体腘绳肌腱重建术后患者60例,随机分为研究组和对照组各30例,2组均接受常规康复治疗,研究组加用变速变阻力运动训练.治疗12及24周时分别测定患肢股四头肌和腘绳肌峰力距(PT)并给予Lysholm膝关节功能量表评定(LKSS).结果:术后第24周,2组患者患肢股四头肌和腘绳肌PT、LKSS评分均较术后第12周明显提高,且研究组PT、LKSS评分提高幅度更高于对照组(均P<0.05).结论:对于ACL损伤重建术后患者,变速变阻力运动训练较常规康复治疗更有利于其膝关节功能恢复. 相似文献
10.
11.
Seong Hoon Lim Bo Young Hong Jee Hae Oh Jong In Lee 《Journal of Physical Therapy Science》2015,27(4):1261-1265
[Purpose] We evaluated the relationship between knee alignment and the electromyographic
(EMG) activity of the vastus medialis (VM) to the vastus lateralis (VL) muscles in
patients with knee osteoarthritis (OA) in a cross-sectional study. [Subjects and Methods]
Forty subjects with knee OA were assessed by anatomic radiographic knee alignment and the
VM/VL ratio was calculated. Surface EMG from both the VM and VL muscles were evaluated
during maximal isometric contraction at 60° knee flexion. Simultaneously, peak quadriceps
torque was assessed using an isokinetic dynamometer. Subjects were categorized into low,
moderate, and high varus groups according to knee malalignment. The peak quadriceps torque
and VM/VL ratio across groups, and their relationships with varus malalignment were
analyzed. [Results] All subjects had medial compartment OA and the VM/VL ratio of all
subjects was 1.31 ± 0.28 (mean ± SD). There were no significant differences in the peak
quadriceps torque or VM/VL ratios across the groups nor were there any significant
relationships with varus malalignment. [Conclusion] The VM/VL ratio and peak quadriceps
torque were not associated with the severity of knee varus malalignment.Key words: Malalignment, Knee, Quadriceps 相似文献
12.
[Purpose] The purpose of this study was to determine the effect of proprioceptive
training on foot progression angle, weight-bearing ratio, and knee adduction moment in
patients with degenerative osteoarthritis of the knee. [Subjects] The subjects were 37
patients diagnosed with Kellgren-Lawrence grade 2 or 3 degenerative knee osteoarthritis.
They were randomly allocated to three groups: a proprioceptive training group (PT group),
quadriceps strengthening group (QS group), and control group. [Methods] The study
parameters of the three groups were compared before and after a 12-week training period.
Therapeutic exercises were performed twice per week for 12 weeks. Outcomes included the
foot progression angle, weight-bearing ratio, and knee adduction moment. [Results] First,
a significant difference in the foot progression angle was observed among the groups,
significantly increasing in the PTG compared with the CG. Second, a significant difference
in the weight-bearing ratio was observed among the groups, significantly increasing in the
PTG compared with the CG. Third, a significant difference in the first peak knee adduction
moment was observed among the groups, significantly decreasing in the PTG compared with
the CG. [Conclusion] The results of the present study indicate that proprioceptive
training increased the foot progression angle and weight-bearing ratio and decreased the
first peak knee adduction moment. Moreover, incorporating proprioceptive training into a
physical therapy exercise program could improve functional ability and delay the
progression of degenerative osteoarthritis.Key words: Knee osteoarthritis, Knee adduction moment, Proprioceptive training 相似文献
13.
Senem Güner Sema Haghar? Fatma Inan?c? Serap Alsancak Gokhan Aytek?n 《Journal of Physical Therapy Science》2015,27(3):809-813
[Purpose] To investigate the relationship between isokinetic knee muscle strength and
kinematic, kinetic and spatiotemporal gait parameters of patients with multiple sclerosis
(MS). [Subjects and Methods] Twenty-nine MS patients (mean age 31.5±6.5) were investigated
in this study. The isokinetic knee muscle strength and gait parameters of MS patients with
moderate and severe disability, as determined by the expanded disability status scale
(EDSS): EDSS=1–4.5 (n=22, moderate disability) and EDSS>4.5 (n=7, severe disability)
were measured. [Results] Isokinetic knee muscle strength, kinematic, kinetic and
spatiotemporal gait parameters differed between moderate (EDSS=1–4.5, n=22) and severe
disability (EDSS>4.5, n=7). The correlation between each of gait speed, stride length,
total range of knee joint movement and the four strength parameters (minimum and maximum
quadriceps and hamstring muscle strengths) were significant for the MS group as a whole.
Within subgroups, the correlation between minimum hamstring strength and total range of
knee movement was significant only in group EDSS>4.5; minimum hamstring correlated with
peak knee extensor moment in group EDSS=1–4.5, but at a reduced level of significance.
[Conclusion] The present study revealed significant correlations between gait
characteristics and isokinetic strength parameters of the quadriceps and hamstring
muscles. Our study suggests that rehabilitation protocols for MS patients should include a
critical strength training programme particularly for the hamstring and quadriceps
muscles.Key words: Multiple sclerosis, Gait analysis, Muscle strength 相似文献
14.
A Laborde H Rebai L Coudeyre S Boisgard M Eyssette J Coudert 《Annales de Réadaptation et de Médecine Physique》2004,47(2):56-63
OBJECTIVES: To evaluate the feasibility of a study comparing the effects of two protocols of electrical stimulation of the quadriceps femoris after anterior cruciate ligament surgery. MATERIAL: Seven sportsmen with a mean age of 26 yrs were randomly grouped in two: a 20 Hz stimulated group (4 patients) and a 80 Hz stimulated group (3 patients). After surgery all patients received electrical stimulation of the quadriceps femoris, five days a week, for 12 weeks, and had a standard program of voluntary contractions. The main outcome assessed before and three months after surgery were: quadriceps and hamstring peak torque at 90, 180 and 240 degrees /second, maximal isometric quadriceps at 75 degrees of flexion and muscle and subcutaneous fat volumes of the thigh using MRI. RESULTS: After 12 weeks of rehabilitation, the thigh muscle volume deficit of the operated limb was between 3 and 9% in the 20 Hz stimulated group and between 1 and 2% in the 80 Hz stimulated group. Quadriceps peak torque deficit was less than 30% except for two patients in the 20 Hz stimulated group. Maximal isometric quadriceps deficit of the operated limb was higher than 30% except for two patients in the 20 Hz stimulated group. CONCLUSION: The study showed that comparison of two protocols of electrical stimulation of the quadriceps femoris after anterior cruciate ligament surgery is possible if stimulation period is not more than four weeks. 相似文献
15.
目的:观察中老年膝骨关节炎(KOA)患者股四头肌功能水平及步行过程中髋关节的运动学特征。方法:选取18例KOA患者为KOA组,8例无KOA者为对照组,2组的年龄、身高、体重和身体质量指数(BMI值)相匹配。2组受试者均进行等速肌力测试、无线表面肌电测试及步态测试,测试及比较2组股四头肌峰力矩(PT值)、股内侧肌(VM)、股外侧肌(VL)和股直肌(RF)的积分肌电值(iEMG)、均方根值(RMS)、平均功率频率(MPF)及峰值髋内收、外展角度等和步行中髋关节的运动学特征,将股四头肌肌力与髋关节运动学特征进行相关性分析。结果:KOA组股四头肌等长和等速运动时PT值较对照组显著下降(P<0.01),VL在60°/s等速收缩时表面肌电信号RMS值显著高于对照组(P<0.05),RF在180°/s等速收缩时表面肌电信号RMS值显著高于对照组(P<0.01),步行时峰值髋关节内收及外展角度显著低于对照组(P<0.05),股四头肌肌力与髋关节运动学特征无相关。结论:KOA组较对照组股四头肌肌力显著降低,活动时神经支配效率显著下降,且步行过程中峰值髋内收、外展角度显著减少,股四... 相似文献
16.
V Draper 《Physical therapy》1990,70(1):11-17
The purpose of this study was to compare the effects of biofeedback-facilitated exercise with exercise alone on the recovery rate of quadriceps femoris muscle function following anterior cruciate ligament (ACL) reconstruction. Functional measures included 1) a dynamometric test of quadriceps femoris muscle isometric peak torque during the 12th postoperative week and 2) the number of days post-operatively that a patient achieved full active extension of the knee. Twenty-two patients with acute ACL injury were randomly assigned to a Treatment (biofeedback) Group (n = 11) or a Control (nonfeedback) Group (n = 11) during the first therapy session one week after reconstructive surgery. After the patients had completed the 12-week exercise program, the quadriceps femoris muscle isometric peak torque in the operative limb was compared with that in the nonoperative limb at three angles (90 degrees, 60 degrees, and 45 degrees) of extension. An analysis of variance revealed significant differences between the Treatment and Control Groups at all three angles. Mean recovery time was calculated for each group, and a t test for independent samples indicated a significant difference between the groups. These results demonstrate that the addition of biofeedback to muscle strengthening exercises facilitates the rate of recovery of quadriceps femoris muscle function following ACL reconstruction. 相似文献
17.
Voluntary activation and decreased force production of the quadriceps femoris muscle after total knee arthroplasty 总被引:5,自引:0,他引:5
BACKGROUND AND PURPOSE: Quadriceps femoris muscle weakness as manifested by a decrease in force-generating capability is a persistent problem after total knee arthroplasty (TKA). The authors hypothesized that (1) patients with a TKA would have decreased quadriceps femoris muscle performance (weakness) and impaired volitional activation when compared with a group of older adults without knee pathology, (2) pain and age would account for a large portion of the variability in volitional activation after surgery, and (3) volitional activation in the TKA group would account for a large portion of the variability in force production. SUBJECTS: Comparison subjects were 52 volunteers (mean age=72.2 years, SD=5.34, range=64-85). The TKA group comprised 52 patients (mean age=64.9 years, SD=7.72, range=49-78) with a diagnosis of osteoarthritis who had undergone a tricompartmental, cemented TKA. METHODS: Knee extension force was measured using a burst superimposition technique, where a supramaximal burst of electrical stimulation was superimposed on a maximal voluntary isometric contraction (MVIC). The amount of failure of volitional activation is determined by the amount of electrical augmentation of force beyond a person's MVIC at the instant of the application of the electrical burst. RESULTS: The average normalized knee extension force of the TKA group was 64% lower than that of the comparison group. The average volitional activation deficit in the TKA group (26%) was 4 times as great as the comparison group's deficit (6%). Age did not correlate with quadriceps femoris muscle activation, and knee pain explained only a small portion of the variance in knee extension force (r2=.17). Volitional activation was highly correlated with knee extension force production (r2=.65). DISCUSSION AND CONCLUSION: Considerable quadriceps femoris muscle inhibition after surgery has several implications for recovery. Rehabilitation programs that focus on volitional exercise alone are unlikely to overcome this pronounced failure of activation. Early interventions focused at improving quadriceps femoris muscle voluntary activation may improve efforts to restore muscle force. 相似文献
18.
The purpose of this article is to describe a method for strengthening the quadriceps femoris muscle in a patient after anterior cruciate ligament (ACL) surgery. The method incorporates electrically elicited co-contraction of the quadriceps femoris and hamstring muscles. A single-case experimental design based on a split-middle (ABAB) technique was used to assess the effects of the systematic administration and withdrawal of electrical stimulation with respect to changes in knee isometric extension and flexion torque and circumferential measurements of the thigh in a patient six weeks after ACL reconstruction. Results show increases in extension and flexion torque and thigh circumferential measurements that are associated with both stimulation (treatment) phases in addition to a maintenance effect demonstrated during the withdrawal phase. In this patient, the technique appears to be effective in increasing muscle strength and circumferential measurements, particularly quadriceps femoris muscle torque. Implications and suggestions for future research are included. 相似文献
19.
Electrical stimulation versus voluntary exercise in strengthening thigh musculature after anterior cruciate ligament surgery 总被引:2,自引:0,他引:2
A Delitto S J Rose J M McKowen R C Lehman J A Thomas R A Shively 《Physical therapy》1988,68(5):660-663
Twenty patients who had undergone anterior cruciate ligament reconstructive surgery were placed randomly and independently in an Electrical Stimulation Group (n = 10) or Voluntary Exercise Group (n = 10) to compare the effectiveness of these two muscle-strengthening protocols. Patients in both groups used simultaneous contraction of quadriceps femoris and hamstring muscles during a training regimen that consisted of either voluntary exercise or electrical stimulation trials five days a week for a three-week period within the first six postoperative weeks. After patients completed the training regimen, bilateral maximal isometric measurements of gravity-corrected knee extension and flexion torque were obtained for both groups and percentages were calculated. Results showed that patients in the Electrical Stimulation Group finished the three-week training regimen with higher percentages of both extension and flexion torque when compared with patients in the Voluntary Exercise Group (extension: t = 4.35, p less than .05; flexion; t = 6.64, p less than .05). These results indicate that patients in an electrical stimulation regimen can achieve higher individual thigh musculature strength gains than patients in a voluntary exercise regimen when simultaneous contraction of thigh muscles is prescribed during an early phase of postoperative rehabilitation. 相似文献
20.
Young-hyeon Bae Young Jun Ko Won Hyuk Chang Ju Hyeok Lee Kyeong Bong Lee Yoo Jung Park Hyun Geun Ha Yun-Hee Kim 《Journal of Physical Therapy Science》2014,26(12):1949-1953
[Purpose] The purpose of the present study was to investigate the effects of
robot-assisted gait training combined with functional electrical stimulation on locomotor
recovery in patients with chronic stroke. [Subjects] The 20 subjects were randomly
assigned into either an experimental group (n = 10) that received a combination of
robot-assisted gait training and functional electrical stimulation on the ankle
dorsiflexor of the affected side or a control group (n = 10) that received robot-assisted
gait training only. [Methods] Both groups received the respective therapies for
30 min/day, 3 days/week for 5 weeks. The outcome was measured using the Modified Motor
Assessment Scale (MMAS), Timed Up-and-Go Test (TUG), Berg Balance Scale (BBS), and gait
parameters through gait analysis (Vicon 370 motion analysis system, Oxford Metrics Ltd.,
Oxford, UK). All the variables were measured before and after training. [Results] Step
length and maximal knee extension were significantly greater than those before training in
the experimental group only. Maximal Knee flexion showed a significant difference between
the experimental and control groups. The MMAS, BBS, and TUG scores improved significantly
after training compared with before training in both groups. [Conclusion] We suggest that
the combination of robot-assisted gait training and functional electrical stimulation
encourages patients to actively participate in training because it facilitates locomotor
recovery without the risk of adverse effects.Key words: Robot-assisted gait training, Functional electrical stimulation, Chronic stroke 相似文献