Hand Grip-EMG Muscle Response

Barański, Robert; Kozupa, A.

doi:10.12693/aphyspola.125.a-7

Cited by 23 publications

(11 citation statements)

References 5 publications

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“…Subjects were free to maintain a preferred grip, but the grip force was kept constant during the whole test. This assured that variability among trials was not due to changes in muscle activation related to a modified grip force applied to the handle ( Barański and Kozupa, 2014 ) but reflected the intrinsic variability of the perceptual process.…”

Section: Discussionmentioning

confidence: 99%

“…Likely, the simultaneous activation of many muscles as agonists during motion could be considered as a further source of noise. A future study using electromyography could clarify which muscle is active along each direction, how synergies influence perception and whether the level of grip force affected wrist position sense ( Barański and Kozupa, 2014 ).…”

Section: Discussionmentioning

confidence: 99%

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Wrist Position Sense in Two Dimensions: Between-Hand Symmetry and Anisotropic Accuracy Across the Space

Albanese

Holmes

Marini

et al. 2021

Front. Hum. Neurosci.

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A deep investigation of proprioceptive processes is necessary to understand the relationship between sensory afferent inputs and motor outcomes. In this work, we investigate whether and how perception of wrist position is influenced by the direction along which the movement occurs. Most previous studies have tested Joint Position Sense (JPS) through 1 degree of freedom (DoF) wrist movements, such as flexion/extension (FE) or radial/ulnar deviation (RUD). However, the wrist joint has 3-DoF and many activities of daily living produce combined movements, requiring at least 2-DoF wrist coordination. For this reason, in this study, target positions involved movement directions that combined wrist flexion or extension with radial or ulnar deviation. The chosen task was a robot-aided Joint Position Matching (JPM), in which blindfolded participants actively reproduced a previously passively assumed target joint configuration. The JPM performance of 20 healthy participants was quantified through measures of accuracy and precision, in terms of both perceived target direction and distance along each direction of movement. Twelve different directions of movement were selected and both hands tested. The left and right hand led to comparable results, both target extents and directions were differently perceived according to the target direction on the FE/RUD space. Moreover, during 2-DoF combined movements, subjects’ perception of directions was impaired when compared to 1-DoF target movements. In summary, our results showed that human perception of wrist position on the FE/RUD space is symmetric between hands but not isotropic among movement directions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Wrist Position Sense in Two Dimensions: Between-Hand Symmetry and Anisotropic Accuracy Across the Space

Albanese

Holmes

Marini

et al. 2021

Front. Hum. Neurosci.

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“…We further notice that there is some variability in the outcome measurements of handgrip forces and AROM as indicated by the shaded area (in blue and red) on Figure 3. These variations are expected from persons with SCI [20,21]. Data analysis of a larger sample is underway to confirm the findings.…”

Section: ) Biomechanical Outcomesmentioning

confidence: 63%

Upper Extremity Functional Improvements in Persons with SCI Resulted from Daily Utilization of Myoelectric Powered Wearable Orthotics

Androwis

Engler

Rana

et al. 2021

2021 43rd Annual International Conference of the IEEE Engineering in Medicine &Amp; Biology Society (EMBC)

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Spinal cord injury (SCI) is a medically complex and life-disrupting condition. It is estimated that 17,700 new traumatic SCI cases are reported each year in the United States. Approximately half of those cases, involves paralysis, sensory loss, and impaired motor control in the upper extremity (UE) and lower extremities. Such impairments could affect the person's independence as well as their family members and caregiver. The limitation at the UE can significantly limit the general activities of daily living (ADL). The purpose of this paper is to determine the daily utilization effects on changing the handgrip AROM and handgrip forces before and after providing upper extremity in-clinic rehabilitation along with at-home utilization using an UE myoelectric powered wearable orthosis (UE-MPWO) in a person with incomplete spinal cord injury (iSCI). This device helps restore function to the weakened or paralyzed UE muscles. We demonstrate that the handgrip AROM and handgrip force improved after 6weeks of training with the UE-MPWO. The overall goal of this study was to evaluate the effects of UE-MPWO (MyoPro) when utilized for in-clinic rehabilitation combined with at-home daily use in improving UE movement and function of people with iSCI. Clinical Relevance-The results of in-clinic rehabilitation combined with at-home daily utilization suggest that this UE-MPWO may improve UE function. The examined UE-MPWO could represent a relatively good example as a rehabilitation and assistive tool for persons with iSCI.

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“…However, the Directive does not limit the search for new methods in the transmission routes and the estimation of the impact of vibroacoustic energy on humans. In Poland research is devoted to this type problem by [7][8][9][10]. = 112 Pa (135 dB (C) re.…”

Section: Guidelines On the Assessment Of Exposure To Noise And Vibratmentioning

confidence: 99%

Assessment of noise and vibration hazards generated by hybrid PEM-FC personal power supply

Kłaczyński¹,

Grzeczka²

2018

J. vibroeng.

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The paper presents a part of ongoing research into the use of a proton exchange membrane fuel cell (PEM-FC) to power military installations and personal power supply of soldier or rescuer. Construction of this type device use elements, which generate vibration, noise and heat. Emitting these types of pollution worsens the detection of military installations as well as operator's safety. The presented research includes the assessment of noise and vibration hazards generated by 20 Watt PEM-FC personal power supply which was created by Polish Naval Academy in consortium with Central Laboratory of Batteries and Cells in Poznan and Impact Clean Power Technology S.A. in Warsaw. Measurements of noise and vibration levels were performed in an anechoic chamber at AGH University of Science and Technology during nominal operation of the device. The vibration parameters transferred to external cover as well sound power level and the insulation effectiveness of device cover were determined.

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Hand Grip-EMG Muscle Response

Cited by 23 publications

References 5 publications

Wrist Position Sense in Two Dimensions: Between-Hand Symmetry and Anisotropic Accuracy Across the Space

Wrist Position Sense in Two Dimensions: Between-Hand Symmetry and Anisotropic Accuracy Across the Space

Upper Extremity Functional Improvements in Persons with SCI Resulted from Daily Utilization of Myoelectric Powered Wearable Orthotics

Assessment of noise and vibration hazards generated by hybrid PEM-FC personal power supply

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