Quantitative Performance Analysis of Exoskeleton Augmenting Devices - Muscle Suit - for Manual Worker

Muramatsu, Yoshiki; Kobayashi, Hiroyuki; Sato, Yutaka; He, Jiping; Hashimoto, Takuya; Kobayashi, Hiroshi

doi:10.20965/ijat.2011.p0559

Cited by 66 publications

(24 citation statements)

References 20 publications

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“…Five papers analyzed the effects of active exoskeletons (Kobayashi, Aida, & Hashimoto, 2009;Liu, Qiu, Zhu, Zhou, & Tang, 2016;Muramatsu et al, 2011) or semiactive/adaptive (Naito et al, 2007;Otten et al, 2018) exoskeletons on physical exposures. There was insufficient evidence regarding the efficacy of the active exoskeletons studied in this review for reducing muscle activity of the flexor carpi radialis (FCR), flexor carpi ulnaris (FCU), biceps brachii (BB), anterior deltoid (AD), posterior deltoid (PD), trapezius (TR), erector spinae (ES) or latissimus dorsi (LAT).…”

Section: Active and Semi-active/ Adaptive Systemsmentioning

confidence: 99%

“…Considering the limited number of papers available, we summarize selected findings from individual papers. Although there was an insufficient strength of evidence when considering the literature broadly, one paper did show significant reductions in EMG of the FCR, FCU, BB, AD and PD (Muramatsu et al, 2011) with active exoskeleton use. Three other studies also showed reductions in shoulder and back muscles including EMG of the AD, BB, TR, ES and LAT (Kobayashi et al, 2009;Naito et al, 2007;Otten et al, 2018), but those reductions were not considered significant based on the limited sample sizes tested in those studies.…”

Section: Active and Semi-active/ Adaptive Systemsmentioning

confidence: 99%

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Considerations for Industrial Use: A Systematic Review of the Impact of Active and Passive Upper Limb Exoskeletons on Physical Exposures

McFarland¹,

Fischer²

2019

IISE Transactions on Occupational Ergonomics and Human Factors

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This paper synthesizes the current literature on industrial-use, active and passive upper-limb exoskeletons, as an aid to health and safety specialists, ergonomics practitioners, and policy-makers that may be considering or regulating their use. Reported here are the effects of exoskeleton use on muscular activity; endurance and fatigue; kinematics and range of motion; productivity and quality; discomfort and pain; and usability and subjective feedback. A moderate level of evidence emerged, supporting the efficacy of passive upper limb exoskeletons in reducing muscular demands on the anterior and middle deltoid during occupational tasks, primarily those tasks involving overhead work. Given the nascence of research in this area, however, there is insufficient evidence to support the efficacy of active upper limb exoskeletons. Practitioners are encouraged to explore the effectiveness of passive exoskeleton use to reduce musculoskeletal disorder risk, particularly for overhead work. However, more research on the efficacy of active exoskeletons is recommended prior to field trials.

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Section: Active and Semi-active/ Adaptive Systemsmentioning

confidence: 99%

Section: Active and Semi-active/ Adaptive Systemsmentioning

confidence: 99%

Considerations for Industrial Use: A Systematic Review of the Impact of Active and Passive Upper Limb Exoskeletons on Physical Exposures

McFarland¹,

Fischer²

2019

IISE Transactions on Occupational Ergonomics and Human Factors

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“…We therefore have been developing the wearable muscle suit [3][4][5][6][7][8][9] directly support the motion of upper body as shown in Figure 1. The purpose is to provide daily assistance and help users to move unaided.…”

Section: Introductionmentioning

confidence: 99%

Assessment of local muscle fatigue by NIRS - development and evaluation of muscle suit -

Muramatsu

Kobayashi

2014

Robomech J

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Although the machinery automation technology and robotics have made significant progress in making production and distribution easy and efficient, there is still a need for manual work such as nursing and other manufacturing work. Those work could possibly cause the work-related disorders. In order to reduce the risk of work-related injury or illness, we have been developing a compact and lightweight wearable robot "Muscle Suit" to provide direct and physical motion supports for assisting human motion. The development of the Muscle Suit becomes possible through the use of the McKibben artificial muscle. This type of artificial muscle has the advantages of being compact, lightweight and reliable. The wearable Muscle Suit has high versatility and conveyance, it supports the user physically with the capability of loading more weights. The evaluation of effectiveness is a key point in the development of the Muscle Suit and it could be estimated by evaluating the muscle fatigue. The evaluation of muscle fatigue is required not only for muscle suit but also for rehabilitation, muscle training and human physical support. Although the frequency transition of electromyogram (EMG) method is generally used for fatigue assessment, it has certain drawbacks depending on conditions and environment. For instance, it is impossible to apply it in the case of isotonic contraction. There are no apparatus or methods which measure muscle fatigue noninvasively and simply. In this study, we used near-infrared spectroscopy (NIRS) to measure the serum oxygenated hemoglobin and deoxygenated hemoglobin concentration of wearer's muscle indirectly, the new term ΔHbt has been defined and the degree of fatigue has also been evaluated. And then, we had the evaluation experiment of muscle suit using blood oxygenation and the new term ΔHbt to estimate the effects of muscle suit.

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“…any kinds of wearable power assist device have been developed [1][2][3][4][5]. These are constructed with an exoskeleton, which is driven with actuator such as an electric motor, a hydraulic cylinder and so on.…”

Section: Introductionmentioning

confidence: 99%

Development of pneumatic power assist wear to reduce physical burden

Sasaki

Takaiwa

2014

2014 IEEE/SICE International Symposium on System Integration

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Many kinds of power assist device have been developed. By using the exoskeleton, a high generated torque actuator can be introduced. An assistance performance of these devices becomes high. On the other hand, a realization of exoskeleton which has the same D.O.F of a human is not easy from considerations about a size and strength of device. The purpose of this study is to develop power assist device which is easy to use like normal clothes and does not restrict movement even though the assistance rate is not so high. User can be assisted by wearing this one on which the pneumatic soft actuator, which has a high power weight ratio and a light weight, is put. Final goal of this wear is to reduce a physical burden caused by heavy equipment such as a heatproof suit for a firefighter and so on. In this paper, the structure of power assist wear is discussed, and the assistance effect under the condition that a heavy load is applied to upper body is verified from iEMG.

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Quantitative Performance Analysis of Exoskeleton Augmenting Devices - Muscle Suit - for Manual Worker

Cited by 66 publications

References 20 publications

Considerations for Industrial Use: A Systematic Review of the Impact of Active and Passive Upper Limb Exoskeletons on Physical Exposures

Considerations for Industrial Use: A Systematic Review of the Impact of Active and Passive Upper Limb Exoskeletons on Physical Exposures

Assessment of local muscle fatigue by NIRS - development and evaluation of muscle suit -

Development of pneumatic power assist wear to reduce physical burden

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