Functional electrical stimulation improves muscle strength and endurance in patients after cardiac surgery: a randomized controlled trial

Schardong, Jociane; Kuinchtner, Gabriela Castro; Sbruzzi, Graciele; Plentz, Rodrigo Della Méa; Silva, Antônio Marcos Vargas da

doi:10.1016/j.bjpt.2017.05.004

Cited by 18 publications

(16 citation statements)

References 21 publications

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“…According to our data, knee extensor muscle strength can also be used to assess the likelihood of developing complications after cardiac surgery and, in our opinion, may be preferable in this group of patients. There are studies that have shown that the electric skeletal muscle stimulation (EMS) in patients after cardiac surgery are safe [16] and can improve skeletal muscle metabolism [17]. Therefore, assessing the muscles' status before and after EMS allows to evaluate its effectiveness.…”

Section: Discussionmentioning

confidence: 99%

Skeletal muscle status, autonomic balance and short-term results of cardiac surgery

2020

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Purpose — To study the association between the status of lower extremities’ skeletal muscles and autonomic balance with the short-term results of cardiac surgery patients. Methods — 64 patients (57 men, median age 63 years) who underwent non-urgent cardiac surgery at the Research Institute for Complex Issues of Cardiovascular Diseases clinic from March 2015 to March 2016 were included in the study. Patients with exacerbation of underlying disease were excluded from the study. Additionally, muscle status of the patients was assessed using static-dynamic tests on a multifunctional training apparatus, and the autonomic nervous system (ANS) state was evaluated using the ORTOexpert program during an active orthostatic test. 9 patients developed complications in the postoperative period; groups with the postoperative complications present and absent were compared according to the studied preoperative indicators. Results — The following indicators were revealed more often prior to the surgery in the group with the postoperative complications: cardiac arrhythmias (p=0.023), aortic valve regurgitation (p=0.002), left ventricle aneurysm (p=0.007), carotid stenosis (p=0.036), decreased muscle strength of the upper and lower extremities (p=0.047 and p=0.046), sympathetic activation (LF/HF ratio p=0.028), and ANS stress in response to the test. Conclusion — Low status of skeletal muscles (upper and lower extremities) and ANS sympathetic activation and the overstrain of its adaptive mechanisms were associated with development of postoperative complications after cardiac surgery, along with severity of the underlying cardiac pathology, risk and duration of the surgery.

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Section: Discussionmentioning

confidence: 99%

Skeletal muscle status, autonomic balance and short-term results of cardiac surgery

2020

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“…It is our hope that electrical stimulation can be used as an alternate cost-effective gait rehabilitation therapy, which can help patients to increase their gait cadence while training on a treadmill. In addition to the increase in walking speed, the use of electrical stimulation has also proven to increase muscle strength and stability [29]. Together the use of entrainment by electrical stimulation may be beneficial in assisting those with movement disabilities.…”

Section: Discussionmentioning

confidence: 99%

Effects of periodic sensory perturbations during electrical stimulation on gait cycle period

et al. 2018

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The spinal cord contains the neural circuitry needed to generate rhythmic walking motions, and afferent sensory feedbacks are involved in the control of locomotion. In this study, we examined the influence of periodic electrical stimulation on the change in gait cycle period during treadmill walking. 40 subjects walked on a treadmill while receiving periodic bursts of electrical stimulation at various perturbation periods (-20, -40, -60, +20, +40 milliseconds from their initial gait cycle periods). Eleven subjects received electrical stimulation to the hamstring, and 29 received electrical stimulation to the calf. Each subject completed four trials; two trials were conducted using high amplitude stimulation causing a slight degree of joint motion, and the other two trials were conducted using reduced amplitude stimulation which did not cause observable motion. Through the trials, we sought to answer the following questions: 1) does the amplitude of electrical stimulation have an effect on the level of entrainment? 2) does the stimulation site effect the level of entrainment? Entrainment refers to the synchronization of gait cycle period to the period of electrical stimulation. The results showed that entrainment was observed when the perturbation periods were induced relatively close to the subject’s initial gait cycle period. For both stimulation sites, entrainment was shown in 59% of subjects at +/- 20 milliseconds from the initial gait cycle period. With reduced amplitude, entrainment was still observed (51% all stimulation site groups at +/- 20 milliseconds). In addition, after-effects following electrical perturbation were present as seen by changes in the mean gait cycle period. Our results suggest that human locomotor control is organized with a semi-autonomous peripheral oscillator influenced by afferent information, and that electrical stimulation has the potential to be a simpler, and cost-effective tool for locomotion rehabilitation.

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“…It has been used as a neuroprosthetic, which generates functional movement of paralyzed muscle such as grasping, standing, and walking [25,26]. The therapeutic application of FES has benefits of increasing muscle strength and endurance, and reducing muscle spasticity [23,[27][28][29]. Furthermore, it induces motor cortex activation through repetitive movement exercise [30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Development of a flickering action video based steady state visual evoked potential triggered brain computer interface-functional electrical stimulation for a rehabilitative action observation game

Son

Choi

Lim

et al. 2020

THC

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BACKGROUND: This study focused on developing an upper limb rehabilitation program. In this regard, a steady state visual evoked potential (SSVEP) triggered brain computer interface (BCI)-functional electrical stimulation (FES) based action observation game featuring a flickering action video was designed. OBJECTIVE: In particular, the synergetic effect of the game was investigated by combining the action observation paradigm with BCI based FES. METHODS: The BCI-FES system was contrasted under two conditions: with flickering action video and flickering noise video. In this regard, 11 right-handed subjects aged between 22–27 years were recruited. The differences in brain activation in response to the two conditions were examined. RESULTS: The results indicate that T3 and P3 channels exhibited greater Mu suppression in 8–13 Hz for the action video than the noise video. Furthermore, T4, C4, and P4 channels indicated augmented high beta (21–30 Hz) for the action in contrast to the noise video. Finally, T4 indicated suppressed low beta (14–20 Hz) for the action video in contrast to the noise video. CONCLUSION: The flickering action video based BCI-FES system induced a more synergetic effect on cortical activation than the flickering noise based system.

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Functional electrical stimulation improves muscle strength and endurance in patients after cardiac surgery: a randomized controlled trial

Abstract: HighlightsFES is widely used in patients with chronic heart failure.FES increased quadriceps muscle strength after eight weeks of training.FES increased lower limb muscle endurance after eight weeks of training.FES was unable to modify functional capacity after eight weeks of training.

Cited by 18 publications

References 21 publications

Skeletal muscle status, autonomic balance and short-term results of cardiac surgery

Skeletal muscle status, autonomic balance and short-term results of cardiac surgery

Effects of periodic sensory perturbations during electrical stimulation on gait cycle period

Development of a flickering action video based steady state visual evoked potential triggered brain computer interface-functional electrical stimulation for a rehabilitative action observation game

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