東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Utilizing Exoskeletons for Intermitt...

Kuber, Pranav Madhav.

FindBook

Google Book

Amazon

博客來

Utilizing Exoskeletons for Intermittent Trunk Flexion Tasks: Implications on Kinematics, Stability, Muscle Activity and Fatigue.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Utilizing Exoskeletons for Intermittent Trunk Flexion Tasks: Implications on Kinematics, Stability, Muscle Activity and Fatigue./
作者:	Kuber, Pranav Madhav.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2024,
面頁冊數:	392 p.
附註:	Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
Contained By:	Dissertations Abstracts International86-03B.
標題:	Biomechanics. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31558466
ISBN:	9798384075141

Utilizing Exoskeletons for Intermittent Trunk Flexion Tasks: Implications on Kinematics, Stability, Muscle Activity and Fatigue.
Kuber, Pranav Madhav.

Utilizing Exoskeletons for Intermittent Trunk Flexion Tasks: Implications on Kinematics, Stability, Muscle Activity and Fatigue. - Ann Arbor : ProQuest Dissertations & Theses, 2024 - 392 p.

Source: Dissertations Abstracts International, Volume: 86-03, Section: B.

Thesis (Ph.D.)--Rochester Institute of Technology, 2024.

Exoskeletons (EXOs) are wearable assistive devices that enhance workers' physical capabilities and reduce injury risk due to overexertion. However, current devices may produce mixed outcomes, and even increase demands. Factors responsible for this gap were identified and potential design improvements were proposed to improve their adoption. A subsequent systematic review showed mixed outcomes in real-world scenarios, possibly due to challenges in conducting field evaluations. A new guideline is proposed, which can be beneficial in improving the generalizability of findings in field evaluations.Low-back is injury-prone due to repetitive trunk flexion tasks, where Back-support industrial exoskeletons (BSIEs) can be beneficial. Literature review suggests that mixed effects during field testing may result from insufficient considerations of realistic factors in lab-based studies (asymmetry, task variations, and their cyclic nature leading to fatigue). In this study, twelve participants performed intermittent bending (with sustained bending, bending/retraction, standing and rest), tasks with/without BSIE and with/without 45⁰ left asymmetry till medium-high fatigue. Each intermittent bending task was preceded and followed by 30 x repetitive bending cycles. Simultaneously, we recorded trunk movement, stability, muscle activity in back and legs, and subjective fatigue ratings.Findings showed that BSIE increased endurance by 50% and was favorably rated by participants. BSIE was beneficial to low-back during sustained portions of intermittent bending (20%) but increased leg demands with fatigue (5%). Similarly, the device reduced back activity (9-22%) during bending, but increased activity during retraction (8%-11%). Asymmetry and fatigue reduced BSIE benefits in right-back by ~8% and ~11-15% respectively. During repetitive bending, BSIE led to minimal back benefits (0-1.8%) but substantial leg benefits (10-18%). Asymmetry increased right low-back and leg demands, while fatigue increased low-back activity (8-12%). BSIE notably led to slower trunk movements and improved stability in both tasks showing no effect on fall-risk. Overall outcomes suggest that BSIE can benefit low-back in tasks with higher portions of sustained bending that require less frequent bending, with rest breaks focusing on relieving leg demands. Future studies may integrate sensing technologies for evaluating BSIEs in real-world scenarios and develop fatigue detection methods that can be used to define task cycle parameters and work-rest ratios.

ISBN: 9798384075141Subjects--Topical Terms:

548685
Biomechanics.
Subjects--Index Terms:

Bending

Utilizing Exoskeletons for Intermittent Trunk Flexion Tasks: Implications on Kinematics, Stability, Muscle Activity and Fatigue.
LDR:03803nmm a2200409 4500 001 2404271
005 20241203090621.5
006 m o d
007 cr#unu||||||||
008 251215s2024 ||||||||||||||||| ||eng d
020 $a 9798384075141
035 $a (MiAaPQ)AAI31558466
035 $a AAI31558466
040 $a MiAaPQ $c MiAaPQ
100 1 $a Kuber, Pranav Madhav. $3 3554991
245 1 0 $a Utilizing Exoskeletons for Intermittent Trunk Flexion Tasks: Implications on Kinematics, Stability, Muscle Activity and Fatigue.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2024
300 $a 392 p.
500 $a Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
500 $a Advisor: Rashedi, Ehsan.
502 $a Thesis (Ph.D.)--Rochester Institute of Technology, 2024.
520 $a Exoskeletons (EXOs) are wearable assistive devices that enhance workers' physical capabilities and reduce injury risk due to overexertion. However, current devices may produce mixed outcomes, and even increase demands. Factors responsible for this gap were identified and potential design improvements were proposed to improve their adoption. A subsequent systematic review showed mixed outcomes in real-world scenarios, possibly due to challenges in conducting field evaluations. A new guideline is proposed, which can be beneficial in improving the generalizability of findings in field evaluations.Low-back is injury-prone due to repetitive trunk flexion tasks, where Back-support industrial exoskeletons (BSIEs) can be beneficial. Literature review suggests that mixed effects during field testing may result from insufficient considerations of realistic factors in lab-based studies (asymmetry, task variations, and their cyclic nature leading to fatigue). In this study, twelve participants performed intermittent bending (with sustained bending, bending/retraction, standing and rest), tasks with/without BSIE and with/without 45⁰ left asymmetry till medium-high fatigue. Each intermittent bending task was preceded and followed by 30 x repetitive bending cycles. Simultaneously, we recorded trunk movement, stability, muscle activity in back and legs, and subjective fatigue ratings.Findings showed that BSIE increased endurance by 50% and was favorably rated by participants. BSIE was beneficial to low-back during sustained portions of intermittent bending (20%) but increased leg demands with fatigue (5%). Similarly, the device reduced back activity (9-22%) during bending, but increased activity during retraction (8%-11%). Asymmetry and fatigue reduced BSIE benefits in right-back by ~8% and ~11-15% respectively. During repetitive bending, BSIE led to minimal back benefits (0-1.8%) but substantial leg benefits (10-18%). Asymmetry increased right low-back and leg demands, while fatigue increased low-back activity (8-12%). BSIE notably led to slower trunk movements and improved stability in both tasks showing no effect on fall-risk. Overall outcomes suggest that BSIE can benefit low-back in tasks with higher portions of sustained bending that require less frequent bending, with rest breaks focusing on relieving leg demands. Future studies may integrate sensing technologies for evaluating BSIEs in real-world scenarios and develop fatigue detection methods that can be used to define task cycle parameters and work-rest ratios.
590 $a School code: 0465.
650 4 $a Biomechanics. $3 548685
650 4 $a Industrial engineering. $3 526216
650 4 $a Mechanical engineering. $3 649730
653 $a Bending
653 $a Ergonomics
653 $a Evaluation
653 $a Industrial exoskeletons
653 $a Low-back pain
653 $a Signal processing
690 $a 0648
690 $a 0546
690 $a 0354
690 $a 0548
710 2 $a Rochester Institute of Technology. $b Industrial & Systems Engineering. $3 3681904
773 0 $t Dissertations Abstracts International $g 86-03B.
790 $a 0465
791 $a Ph.D.
792 $a 2024
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31558466