Background: Little is known about the ideal duration of inspiratory muscle training in stroke patients.
Objective: The aim of this study was to assess the effects of short-term and long-term inspiratory muscle strengthening exercises in stroke patients.
Methods: This study was a prospective, double-blind, randomized controlled trial involving 50 stroke patients.
Eur J Appl Physiol
October 2024
This review is a comprehensive guide for electromyography (EMG) researchers, providing a comparison of skin EMG recording (surface EMG: sEMG and high-density sEMG: HD-sEMG) and intramuscular EMG recording (multi-motor unit-MMU and single motor unit electromyography-SMU). We delve into the nuances of techniques, highlighting their strengths and limitations in quantifying muscle activation during dynamic and static conditions. We first examine how EMG signals change with time, focussing on the interplay between motor unit synchronisation and signal amplitude.
View Article and Find Full Text PDFBackground: Although brief skin cooling (BSC) is widely used in sports medicine and rehabilitation for its positive effects on motor performance, the mechanism underlying this motor facilitation effect remains unclear.
Objectives: To explore the hypothesis that BSC enhances muscle force generation, with cold-induced sympathetic activation leading to heightened muscle spindle sensitivity, thereby contributing to this effect.
Methods: The study involved two experiments.
Until recently, research on the pathogenesis and treatment of osteoporosis and sarcopenia has primarily focused on local and systemic humoral mechanisms, often overlooking neuronal mechanisms. However, there is a growing body of literature on the neuronal regulation of bone and skeletal muscle structure and function, which may provide insights into the pathogenesis of osteosarcopenia. This review aims to integrate these neuronal regulatory mechanisms to form a comprehensive understanding and inspire future research that could uncover novel strategies for preventing and treating osteosarcopenia.
View Article and Find Full Text PDFObjective: Motor neuron pool activity is high in spasticity. The effect of inhibitory kinesiotaping (KT) on spasticity is unclear. The aim of this study is to investigate the effect of inhibitory KT on spasticity after stroke.
View Article and Find Full Text PDFTransspinal (or transcutaneous spinal cord) stimulation is a noninvasive, cost-effective, easily applied method with great potential as a therapeutic modality for recovering somatic and nonsomatic functions in upper motor neuron disorders. However, how transspinal stimulation affects motor neuron depolarization is poorly understood, limiting the development of effective transspinal stimulation protocols for rehabilitation. In this study, we characterized the responses of soleus α motor neurons to single-pulse transspinal stimulation using single-motor unit (SMU) discharges as a proxy given the 1:1 discharge activation between the motor neuron and the motor unit.
View Article and Find Full Text PDF[Purpose] The beneficial neuromuscular effects of whole-body vibration are explained by the tonic vibration or bone myoregulation reflex. Depending on factors that remain undefined, whole-body vibration may activate the tonic vibration or bone myoregulation reflex. We aimed to examine whether voluntary contraction facilitates activation of the tonic vibration reflex during whole-body vibration.
View Article and Find Full Text PDFTurk J Phys Med Rehabil
March 2023
Objectives: The aim of this research was to examine whether high-frequency whole-body vibration activates the tonic vibration reflex (TVR).
Patients And Methods: The experimental study was conducted with seven volunteers (mean age: 30.8±3.
J Electromyogr Kinesiol
June 2023
While recording surface electromyography [sEMG], it is possible to record the electrical activities coming from the muscles and transients in the half-cell potential at the electrode-electrolyte interface due to micromovements of the electrode-skin interface. Separating the two sources of electrical activity usually fails due to the overlapping frequency characteristics of the signals. This paper aims to develop a method that detects movement artifacts and suggests a minimization technique.
View Article and Find Full Text PDFFinding the reflex circuitry responsible for high-frequency vibration-induced muscle contraction takes work. The main challenge is to determine the effective stimulus time (EST) point at which continuous (sinusoidal) stimulation (i.e.
View Article and Find Full Text PDFObjectives: This study aims to investigate whether whole-body vibration (WBV) has an anti-spastic effect on the ankle plantar flexors.
Patients And Methods: This single-blind, prospective, randomized-controlled clinical study included a total of 48 patients with chronic stroke (33 males, 15 females; mean age: 60.7±10.
Purpose: The aim of this study was to assess serum vitamin D levels and related factors in children with cerebral palsy (CP).
Methods: One hundred and nineteen children with CP between the ages of 1 year to 10 years 9 months who were admitted to the children's inpatient rehabilitation unit of a tertiary rehabilitation hospital between January 1, 2017, and December 31, 2018, were included in this study. Demographic and clinical characteristics were obtained from the patient files.
J Musculoskelet Neuronal Interact
March 2022
Objectives: Whole-body vibration (WBV) is applied to the sole of the foot, whereas local mechanical vibration (LMV) is applied directly to the muscle or tendon. The time required for the mechanical stimulus to reach the muscle belly is longer for WBV. Therefore, the WBV-induced muscular reflex (WBV-IMR) latency may be longer than the tonic vibration reflex (TVR) latency.
View Article and Find Full Text PDFThe aim of this pilot study was to investigate whether a movement therapy robot can improve skills in using a myoelectric prosthesis by patients with upper limb amputations. This prospective randomized, controlled study included a total of eleven patients with upper limb amputations who use myoelectric prostheses. The patients were randomized into a robot-assisted exercise group (n = 6) and a control group (n = 5).
View Article and Find Full Text PDFIntroduction/aims: Motion artifact signals (MASs) created by the relative movement of intramuscular wire electrodes are an indicator of the mechanical stimulus arrival time to the muscle belly. This study proposes a method that uses wire electrodes as an intramuscular mechanosensor to determine the stretch reflex (SR) latency without lag time.
Methods: Gastrocnemius SR was induced by tendon tap, heel tap, and forefoot tap.
Our aim was to investigate the prevalence of sarcopenia in stroke patients, the relationship between sarcopenia detected with different low muscle mass (LMM) adjustment methods, and between stroke-related parameters. Eighty-one patients with chronic stroke who underwent inpatient rehabilitation were included. Spasticity was evaluated by modified Ashworth scale, Brunnstrom staging approach was used for motor function evaluation, physical independence was evaluated using Barthel Index, quality-of-life was evaluated by EQ-5D-3L, and the Cumulative Illness Rating Scale was used to measure multimorbidity.
View Article and Find Full Text PDFObjective: The aim of this study was to investigate phantom limb pain (PLP), phantom limb sensation (PLS), and residual limb pain (RLP) after lower-extremity amputation and their effect on patients' effective prosthesis use, body image, and quality of life in prosthetic users.
Methods: Fifty-seven patients with lower-extremity amputation who used prosthesis for at least three months were included in our study. PLP, PLS, and RLP were evaluated via the prosthesis evaluation questionnaire (PEQ).
Objectives: This study aims to investigate medication adherence in Turkish patients with ankylosing spondylitis (AS) and analyze the related factors for non-adherence.
Patients And Methods: Ninety-nine patients with AS (60 males, 39 females; mean age 41.3±8.
The aim of the study is to estimate the association between spinal cord injuries related medical factors and subjective sleep disturbance in individuals with short-duration chronic spinal cord injury. Seventy-nine individuals with traumatic spinal cord injuries were included in our study and evaluated using the Beck Depression Index for severity of depressive symptoms, Short-Form Health Survey for quality of life, Douleur Neuropathique 4 score for neuropathic pain severity, and the Pittsburgh Sleep Quality Index for subjective sleep disturbances in a tertiary rehabilitation center. Associated subjective sleep disturbance factors were predicted using multivariate binary logistic regression analysis.
View Article and Find Full Text PDFPurpose: To determine a stimulus rate that is not influenced by homosynaptic post-activation depression for H-reflex studies in patients with chronic spasticity.
Materials And Methods: A cohort of 15 chronic stroke patients with soleus spasticity who received inpatient treatment at our rehabilitation centre participated in this study. The effect of stimulus frequency related depression on H-reflex size was tested using four different stimulus rates (0.
To determine whether unilateral leg whole-body vibration (WBV) strength training induces strength gain in the untrained contralateral leg muscle. The secondary aim was to determine the potential role of spinal neurological mechanisms regarding the effect of WBV exercise on contralateral strength training. Forty-two young adult healthy volunteers were randomized into two groups: WBV exercise and Sham control.
View Article and Find Full Text PDFInjury as a result of tripping is relatively common among older people. The risk of falling increases with fatigue and of importance is the ability to dorsiflex the foot through timely activation of the tibialis anterior (TA) muscle to ensure the foot clears the ground, or an obstacle, during the swing phase of walking. We, therefore, questioned whether the muscle spindle input to the motoneurons alters with ongoing fatigue in older people.
View Article and Find Full Text PDFClin Neurophysiol Pract
November 2017
Objective: For many decades, the Jendrassik maneuver (JM) has been used as a reinforcement for stretch reflexes, although the underlying mechanism of this reinforcement is still not fully understood. Moreover, the term JM has been used for many different muscle contraction strategies as there is no fixed movement for the maneuver in the literature. In this study, we aimed to investigate the effects of clenched hand pull, teeth clenching, and their combined effects to reach standardization.
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