TENS Alleviates Muscle Weakness Attributable to Attenuation of Ia Afferents

Konishi, Yu; McNair, Peter; Rice, David A.

doi:10.1055/s-0042-118183

Cited by 11 publications

(27 citation statements)

References 22 publications

(37 reference statements)

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“…59 Following menisectomy 9 and ACL repair, 60 single bouts of TENS effectively increased quadriceps activation and maximal voluntary contractions. These findings have been reproduced in experimental effusion models 54,61,62 and in patients with ACL deficiency 63 and knee OA. 64,65 The disinhibitory effects seem to be most pronounced when TENS is applied for more than 20 minutes prior to exercise in individuals acutely following surgery 60 or effusion.…”

Section: Acute Recoverymentioning

confidence: 58%

Arthrogenic Muscle Inhibition: Best Evidence, Mechanisms, and Theory for Treating the Unseen in Clinical Rehabilitation

Norte¹,

Rush²,

Sherman³

2022

Journal of Sport Rehabilitation

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Context: Arthrogenic muscle inhibition (AMI) impedes the recovery of muscle function following joint injury, and in a broader sense, acts as a limiting factor in rehabilitation if left untreated. Despite a call to treat the underlying pathophysiology of muscle dysfunction more than three decades ago, the continued widespread observations of post-traumatic muscular impairments are concerning, and suggest that interventions for AMI are not being successfully integrated into clinical practice. Objectives: To highlight the clinical relevance of AMI, provide updated evidence for the use of clinically accessible therapeutic adjuncts to treat AMI, and discuss the known or theoretical mechanisms for these interventions. Evidence Acquisition: PubMed and Web of Science electronic databases were searched for articles that investigated the effectiveness or efficacy of interventions to treat outcomes relevant to AMI. Evidence Synthesis: 122 articles that investigated an intervention used to treat AMI among individuals with pathology or simulated pathology were retrieved from 1986 to 2021. Additional articles among uninjured individuals were considered when discussing mechanisms of effect. Conclusion: AMI contributes to the characteristic muscular impairments observed in patients recovering from joint injuries. If left unresolved, AMI impedes short-term recovery and threatens patients’ long-term joint health and well-being. Growing evidence supports the use of neuromodulatory strategies to facilitate muscle recovery over the course of rehabilitation. Interventions should be individualized to meet the needs of the patient through shared clinician–patient decision-making. At a minimum, we propose to keep the treatment approach simple by attempting to resolve inflammation, pain, and effusion early following injury.

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Section: Acute Recoverymentioning

confidence: 58%

Arthrogenic Muscle Inhibition: Best Evidence, Mechanisms, and Theory for Treating the Unseen in Clinical Rehabilitation

Norte¹,

Rush²,

Sherman³

2022

Journal of Sport Rehabilitation

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“…Other than stomatognathic function area, stroke patients increased the trunk muscle activity by weight-shifting exercise with TENS in comparison with weight-shifting exercise with placebo TENS [ 35 ]. Therefore, TENS treatment might support the trunk muscle activity [ 36 ] and partially restore α-motoneuron activation [ 37 ]. However, past studies in stomatognathic area researched analgesic action in TMD and was not enough to investigate muscle activation for TENS treatment.…”

Section: Discussionmentioning

confidence: 99%

Immediate Effect of Masticatory Muscle Activity with Transcutaneous Electrical Nerve Stimulation in Muscle Pain of Temporomandibular Disorders Patients

Abe

Miyagi

Yoshinaga

et al. 2020

JCM

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Transcutaneous electrical nerve stimulation (TENS) is a non-invasive treatment modality for acute and chronic pain. However, little information for muscle activity is available on the immediate effects of TENS in masticatory muscle pain related to temporomandibular disorders (TMDs). The present study aimed to evaluate the immediate effects of TENS treatment on TMD-related muscle pain. Thirty-six patients with TMD-related muscle pain and 39 healthy subjects served as TMD and control groups, respectively. For objective evaluations, maximum mouth opening, and maximum bite force were measured before and after TENS. The pain intensity was assessed according to a 100-mm visual analog scale (VAS). TENS was applied to painful muscles for 20 min with frequencies of 100–200 Hz. The treatment outcome was evaluated using Global Rating of Change (GRC) scales. In the TMD group, VAS values significantly decreased after TENS. Although there was significant increase in the maximum mouth opening after TENS for only TMD group, the maximum bite force of both groups was significantly greater after TENS. According to GRC scales, one patient with TMD-related muscle pain expressed negative feelings after TENS. Conclusively, TENS treatment might quickly relieve pain in masticatory muscles and improve masticatory functions in patients with TMD-related muscle pain.

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“…Since Ia input is necessary for recruiting high-threshold motor units, enhanced cutaneous stimulation might indirectly affect alpha motor neuron activation (11). Based on this mechanism, some reports concluded that a decline in alpha motor neuron activity due to AMI could be partially restored by cutaneous stimuli (15,16).…”

Section: Introductionmentioning

confidence: 99%

“…However, it is impossible to determine the direct effect of AMI due to actual injury on reflexive motor control during unpredictable landing performance, because pre-and post- injury reflex changes cannot be determined. Thus, in the present study, the simulated AMI in which neurological changes are induced by prolonged vibration stimulation (15,16) was used, and data obtained from the same subjects before and after induction of neurological changes similar to AMI were compared.…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, several studies have reported a decline in the activity of alpha motor neurons in healthy individuals upon prolonged vibration stimulation(2, 14, 4). Thus, previous studies used neurological changes in the quadriceps induced by prolonged vibration stimulation as a simulated model of AMI(15, 16). Those studies found that cutaneous stimulation such as tactile and electrical stimulation to the skin could compensate for deficits in both strength and EMG activity following the application of prolonged vibration(15, 16).…”

Section: Introductionmentioning

confidence: 99%

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Tactile stimulation restores inhibited stretch reflex attributable to attenuation of la afferents during surprise landing

Konishi

Yoshii

Takeshita

2022

Preprint

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Purpose: Arthrogenic muscle inhibition(AMI) is induced by pathological knee conditions. The present study aimed to investigate the effect of tactile stimulation on reflex changes induced by simulated AMI during unpredictable landing performances. Methods: Twenty participants performed six unilateral landing tasks: 15cm normal landing (15NL), 30cm normal landing(30NL), surprise landing(SL), 30cm normal landing following vibration (30NLV), surprise landing following vibration(SLV), and surprise landing following vibration with Kinesiology-tape(SLK). For the surprise landing tasks, the solid landing platform(15cm) was removed and replaced by a false plate platform. Since the false plate dislodged easily under load, participants unpredictably fell through the plate to the actual landing surface 15cm below. After completing 15NL, 30NL, SL, vibration stimulation was applied to participants' knees to induce neurological changes similar to AMI. After vibration stimulation, participants performed 30NLV, SLV and SLK in a random order. EMG in the post-landing short latency(31-60 ms) and medium latency(61-90 ms) periods were examined. EMG signals from the vastus lateralis(VL), vastus medialis(VM), and lateral hamstrings(LH) were recorded and compared between tasks. Results: EMG of all muscles were significantly enhanced in the medium latency period. Enhanced EMG were suppressed by vibration stimulation in the VL, but the suppressed EMG were restored after cutaneous stimulation(p<0.01). Conclusion: Our findings suggest that AMI could alter motor control patterns during unpredictable landing, and that tactile stimulation could restore the altered motor control to a normal state. The use of tactile stimulation may help maintain normal motor control patterns in injured individuals.

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TENS Alleviates Muscle Weakness Attributable to Attenuation of Ia Afferents

Cited by 11 publications

References 22 publications

Arthrogenic Muscle Inhibition: Best Evidence, Mechanisms, and Theory for Treating the Unseen in Clinical Rehabilitation

Arthrogenic Muscle Inhibition: Best Evidence, Mechanisms, and Theory for Treating the Unseen in Clinical Rehabilitation

Immediate Effect of Masticatory Muscle Activity with Transcutaneous Electrical Nerve Stimulation in Muscle Pain of Temporomandibular Disorders Patients

Tactile stimulation restores inhibited stretch reflex attributable to attenuation of la afferents during surprise landing

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