A Biomechanical Waist Comfort Model for Manual Material Lifting

Zhang, Yongbao; Ke, Jinjing; Wu, Xiang; Luo, Xiaowei

doi:10.3390/ijerph17165948

Cited by 11 publications

(21 citation statements)

References 42 publications

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“…Test speed: test the relative peak torque, relative average peak torque, relative average power, work fatigue index, and flexion and extension torque ratio at three speeds of 60°/s, 180°/s, and 300°/s to reflect the muscle strength characteristics of the joint at different speeds [ 18 ].…”

Section: Research Object and Methodsmentioning

confidence: 99%

Research on the Protection of Extensor and Flexor Muscles in the Waist and Back of Competitive Athletes

et al. 2022

BioMed Research International

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In the past, in the study of special sports quality of heavy antagonistic sports events, the study of strength quality training was emphasized. The transformation of athletes’ strength quality to special strength was highlighted, and the special exercises which tended to be consistent with the characteristics of wrestling events were added. However, in competition and training, athletes’ spine bears a heavy load. Long-term static contraction of lumbar muscles can lead to excessive local load and injury of lumbar muscles. In this paper, the test results of athletes’ joints are analyzed, and the waist protection scheme for athletes’ strength training is obtained. First of all, solve the problem of athletes’ action mode and improve athletes’ muscle endurance. All special sports quality evaluation can reach a good level. Then, enhance athletes’ explosive power. Thus, all special sports quality evaluations can reach an excellent level. It is concluded that the waist and back are the key parts to support their participation in various sports, maintain body balance, and realize power transmission. Through the study, it is found that there are significant differences in the muscle strength indexes of the maximum strength of the waist and back of athletes of different levels, which fully proves the characteristics of the maximum strength of the waist and back. Through the test, we can understand the flexion and extension strength, range, speed, force, and flexion and extension ratio of athletes’ joints and take timely optimization measures according to the test results to avoid sports injuries in training. It has a key guiding significance for the measurement, analysis, and evaluation of athletes’ joint muscle strength, as well as rehabilitation training after injury and prevention of reinjury.

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Section: Research Object and Methodsmentioning

confidence: 99%

Research on the Protection of Extensor and Flexor Muscles in the Waist and Back of Competitive Athletes

et al. 2022

BioMed Research International

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“…Musculoskeletal disorders (MSDs) due to manual material handling (MMH) are one of the main work-related disabling injuries affecting the quality of life of the American worker (Zurada, 2012). Several factors affect the safety of MMH activities, including the weight of the object, force required for movement of the object, and the posture(s) used during movement (Zhang, et al, 2020). Reducing any of these risk factors while performing a work task may reduce the injury risk.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Shoulder Sprains and Strains in Mining

Larsen

Whitson

Pollard

et al. 2021

Proceedings of the Human Factors and Ergonomics Society Annual

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Material handling injuries reported to the U.S. Mine Safety and Health Administration (MSHA) result in nearly 70,000 days of work lost each year. Several mitigation efforts for these injuries focus on the back, but shoulder injuries account for four times the days lost. Nonfatal incidents reported to MSHA from 2013 through 2017 were limited to shoulder sprains and strains and were analyzed to determine what contributed the most to these injuries. Injuries were coded based on the task performed, motions involved, and the tools used. The analysis indicated that auto maintenance and tasks involving loading/unloading supplies led to the highest number of injuries. Many of these injuries were related to operating equipment or the use of specific tools. The injuries often involved lifting/lowering or pulling/pushing movements. These findings suggest future mitigation strategies for the risk of shoulder sprains and strains should focus on auto maintenance and tasks involving loading/unloading supplies.

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“…9 Low back pain merupakan suatu gejala bukan penyakit yang ditandai dengan adanya keluhan rasa nyeri atau sakit di area punggung bagian bawah yaitu antara tulang rusuk bawah dan di atas kaki. 10,11 LBP miogenik merupakan rasa nyeri akibat adanya cedera atau ketegangan otot yang dirasakan di punggung bagian bawah. LBP merupakan gejala yang sangat umum pada populasi di seluruh dunia dan bisa terjadi pada semua kelompok umur, tanpa memandang jenis kelamin, pekerjaan, status maupun tingkat pendidikan.…”

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Hubungan Lifting Index Pada Kuli Angkut Terhadap Keluhan Low Back Pain Miogenik Di Pasar Tradisional Denpasar

Suta

Saraswati

Griadhi

et al. 2021

MIFI

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Pekerjaan sebagai kuli angkut sangat berisiko dilihat dari lifting index kuli angkut itu sendiri, seperti pada saat kuli angkut mengambil barang dari bawah dengan posisi membungkuk kemudian berdiri sekaligus memindahkan barang ke atas kepala, begitu juga pada saat kuli angkut menurunkan barang dengan posisi membungkuk maka beban yang di angkat akan semakin besar. Hal ini dapat menyebabkan otot dan ligamen tertarik lebih keras sehingga timbul gejala gangguan muskuloskeletal. Salah satu gangguan muskulosketal yang banyak dikeluhkan oleh pekerja sebagai kuli angkut adalah low back pain miogenik. Pelaksanaan penelitian ini bertujuan untuk mengetahui hubungan lifting index pada kuli angkut terhadap keluhan low back pain miogenik di pasar tradisional Denpasar. Metode penelitian yang digunakan yaitu penelitian observasional analitik dengan desain potong lintang atau yang biasa disebut dengan cross – sectional yang dilakukan pada Bulan November – Desember 2020. Teknik yang digunakan dalam pengambilan sampel yaitu purposive sampling. Jumlah sampel penelitian ini sebanyak 89 orang. Variabel dependen dalam penelitian ini adalah low back pain miogenik yang diperoleh dengan melakukan proses anamnesis dan pemeriksaan fisik. Variabel independen yang diukur adalah lifting index yang diukur dengan menggunakan NIOSH lifting equation. Hasil fisher exact test menunjukkan bahwa adanya hubungan antara lifting index pada kuli angkut terhadap keluhan low back pain miogenik dengan nilai p sebesar 0,006 yang menunjukan nilai p < 0,05. Sampel dengan lifting index “berisiko” (LI > 3) dominan mengeluhkan nyeri LBP miogenik dan sampel dengan lifting index “kemungkinan berisiko” (1< LI < 3) dominan tidak mengeluhkan nyeri. Kata kunci: Lifting index, NIOSH lifting equation, low back pain miogenik, kuli angkut

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A Biomechanical Waist Comfort Model for Manual Material Lifting

Cited by 11 publications

References 42 publications

Research on the Protection of Extensor and Flexor Muscles in the Waist and Back of Competitive Athletes

Research on the Protection of Extensor and Flexor Muscles in the Waist and Back of Competitive Athletes

Analysis of Shoulder Sprains and Strains in Mining

Hubungan Lifting Index Pada Kuli Angkut Terhadap Keluhan Low Back Pain Miogenik Di Pasar Tradisional Denpasar

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