Assistive Rehabilitation aims at developing procedures and therapies which reinstate lost body functions for individuals with disabilities. Researchers have monitored electrophysiological activity of muscles using biofeedback obtained from Electromyogram signals collected at appropriate innervation points. In this paper, we present a comprehensive technique for detection of neuromuscular diseas...

bjective: The objective of this paper was to evaluate the specificity of masseter muscle palpation when compared to its electromyographic activity. Materials and Methods: Twenty-one young female adults, aged between 17 and 25, participated in this research. The speech therapy evaluation data were obtained by two speech therapists through masseter muscle palpation during isometric contraction, a...

Lymphatic muscle (LM) is widely considered to be a type of vascular smooth muscle, even though LM cells uniquely express contractile proteins from both smooth muscle and cardiac muscle. We tested the hypothesis that LM exhibits an unloaded maximum shortening velocity (Vmax) intermediate between that of smooth muscle and cardiac muscle. Single lymphatic vessels were dissected from the rat mesent...

This research aimed to appreciate whether the mechanomyogram (MMG) may be used to monitor the muscle behavior under fatiguing exercise. The electromyogram (EMG) and MMG were simultaneously recorded from the Biceps and from the Brachioradialis muscles, with surface electrodes EMG, and accelerometer based transducers – MMG, from sixteen subjects. The conclusions are consistent in validating the u...

The study focuses on obtaining the visco-elastic properties of the iris sphincter and dilator muscles. Two kinds of experiments were performed: the isometric contraction experiment and the isotonic quick release experiment. The length-tension relationship was obtained from the former experiment. This relationship clarified the contribution of each muscle in determining the statics of the pupil....

Vibration stimulates specific receptors, cutaneous and musculo-tendinous. The aff erent impulses travel through spinal neurons to thalamus and cortical structures. The local muscular response to a vibration is a tonic vibratory refl ex. This refl ex depends on many factors: frequency, amplitude, and tendon and muscle length. Based upon this refl ex, vibration produced alteration of isometric an...

Isotonic and isometric striated muscles contraction, as well as their extensibility and elasticity, are modulated by the central nervous system. Modulation at the level of neuromuscular synapses is also very compound, but precisely regulated, and essential for the induction of signals to muscle cells (Farahat & Herr 2010). The induced signal starts a cascade of multiple processes, necessary for...

bstract – The bilateral system was designed to study limb tiffness in different movement tasks. The mechatronics consists f two angular voice coil actuators (± 40 Nm) with embedded otary (± 20°) and torque sensors driven by voltage controlled urrent sources. DSP software routines to synthesize isotonic preloads, stretches) as well as viscoelastic load schemes (Voigt odel) were implemented for e...

The determination of power using isokinetic testing has been shown to be highly reliable. However, isotonic and isokinetic testing involve specific mechanical constraints that likely necessitate different neuromuscular strategies. Therefore, the purpose here was to establish test-retest intrarater reliability (separated by 7 days) of loaded maximal shortening velocity and velocity-dependent pow...

ABSTRACT Myotherapy intervention in facial aesthetics aims to attenuate wrinkles and signs of aging. The relationship between accentuated muscle contraction during chewing, swallowing speaking the appearance has been suggested by speech-language pathology literature. This study aimed report effect electromyographic biofeedback associated with training swallowing, smiling patterns, speech therap...