Low-cost electromyography – Validation against a commercial system using both manual and automated activation timing thresholds

Heywood, Sophie; Pua, Yong-Hao; McClelland, Jodie A.; Geigle, Paula Richley; Rahmann, Ann; Bower, Kelly J; Clark, Ross

doi:10.1016/j.jelekin.2018.05.010

Cited by 39 publications

(38 citation statements)

References 26 publications

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“…Jump: This exercise combines the characteristics of the squat and sums movement up, therefore the analysis is more exhausting. Additionally, it is frequently used to measure the EMG signal in other studies [14,31]. …”

Section: Methodsmentioning

confidence: 99%

“…Validation was only centred on the gait analysis, where researchers measured the activity of six main muscles. Another example is the manuscript of Sophia Heywood et al [14], where the authors compared the signal from a low-cost EMG system and a wire-commercial device. The evaluation consisted of the acquisition of the Vastus Lateralis signal while volunteers executed different exercises.…”

Section: Introductionmentioning

confidence: 99%

“…Results of that analysis are intended to validate the low-cost sEMG system in order to examine whether the low-cost system was appropriate or if it needs improvements. For this purpose, an experiment was developed based on previous research by other authors who have used low-cost systems [13,14,16] or have tried to get a reliable signal from them [12,15].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Validation of a Low-Cost Electromyography (EMG) System via a Commercial and Accurate EMG Device: Pilot Study

Toro

Wei

Olmeda

et al. 2019

Sensors

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Electromyography (EMG) devices are well-suited for measuring the behaviour of muscles during an exercise or a task, and are widely used in many different research areas. Their disadvantage is that commercial systems are expensive. We designed a low-cost EMG system with enough accuracy and reliability to be used in a wide range of possible ways. The present article focuses on the validation of the low-cost system we designed, which is compared with a commercially available, accurate device. The evaluation was done by means of a set of experiments, in which volunteers performed isometric and dynamic exercises while EMG signals from the rectus femoris muscle were registered by both the proposed low-cost system and a commercial system simultaneously. Analysis and assessment of three indicators to estimate the similarity between both signals were developed. These indicated a very good result, with spearman’s correlation averaging above 0.60, the energy ratio close to the 80% and the linear correlation coefficient approximating 100%. The agreement between both systems (custom and commercial) is excellent, although there are also some limitations, such as the delay of the signal (<1 s) and noise due to the hardware and assembly in the proposed system.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Validation of a Low-Cost Electromyography (EMG) System via a Commercial and Accurate EMG Device: Pilot Study

Toro

Wei

Olmeda

et al. 2019

Sensors

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show abstract

“…In turn, the main limitation of this method is signal sensitivity to internal and external factors [7]. Due to the overwhelming benefits of this method, recent decades have contributed to the creation and dissemination of low-cost sEMG devices, some of which are positively validated in scientific research [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Muscle Activity Detectors—Surface Electromyography in the Evaluation of Abductor Hallucis Muscle

Mortka

Wiertel-Krawczuk

Lisiński

2020

Sensors

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Despite the high availability of surface electromyography (sEMG), it is not widely used for testing the effectiveness of exercises that activate intrinsic muscles of foot in people with hallux valgus. The aim of this study was to assess the effect of the toe-spread-out (TSO) exercise on the outcomes of sEMG recorded from the abductor hallucis muscle (AbdH). An additional objective was the assessment of nerve conduction in electroneurography. The study involved 21 patients with a diagnosed hallux valgus (research group A) and 20 people without the deformation (research group B) who performed a TSO exercise and were examined twice: before and after therapy. The statistical analysis showed significant differences in the third, most important phase of TSO. After the exercises, the frequency of motor units recruitment increased in both groups. There were no significant differences in electroneurography outcomes between the two examinations in both research groups. The TSO exercise helps in the better activation of the AbdH muscle and contributes to the recruitment of a larger number of motor units of this muscle. The TSO exercises did not cause changes in nerve conduction. The sEMG and ENG are good methods for assessing this exercise but a comprehensive assessment should include other tests as well.

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“…Unfortunately, the sEMG signal is usually affected by noise, which can cause a wrong understanding of the signal. Therefore, to guarantee a good interpretation of the behaviour, all data acquired by the low-cost system was filtered [ 97 , 98 , 99 ].…”

Section: Methodsmentioning

confidence: 99%

Study of the Emergency Braking Test with an Autonomous Bus and the sEMG Neck Response by Means of a Low-Cost System

et al. 2020

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Nowadays, due to the advances and the increasing implementation of the autonomous braking systems in vehicles, the non-collision accident is expected to become more common than a crash when a sudden stop happens. The most common injury in this kind of accident is whiplash or cervical injury since the neck has high sensitivity to sharp deceleration. To date, biomechanical research has usually been developed inside laboratories and does not entirely represent real conditions (e.g., restraint systems or surroundings of the experiment). With the aim of knowing the possible neck effects and consequences of an automatic emergency braking inside an autonomous bus, a surface electromyography (sEMG) system built by low-cost elements and developed by us, in tandem with other devices, such as accelerometers or cameras, were used. Moreover, thanks to the collaboration of 18 participants, it was possible to study the non-collision effects in two different scenarios (braking test in which the passenger is seated and looking ahead while talking with somebody in front of him (BT1) and, a second braking test where the passenger used a smartphone (BT2) and nobody is seated in front of him talking to him). The aim was to assess the sEMG neck response in the most common situations when somebody uses some kind of transport in order to conclude which environments are riskier regarding a possible cervical injury.

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Low-cost electromyography – Validation against a commercial system using both manual and automated activation timing thresholds

Cited by 39 publications

References 26 publications

Validation of a Low-Cost Electromyography (EMG) System via a Commercial and Accurate EMG Device: Pilot Study

Validation of a Low-Cost Electromyography (EMG) System via a Commercial and Accurate EMG Device: Pilot Study

Muscle Activity Detectors—Surface Electromyography in the Evaluation of Abductor Hallucis Muscle

Study of the Emergency Braking Test with an Autonomous Bus and the sEMG Neck Response by Means of a Low-Cost System

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