phd-sportwiss. rein, r., dipl.-sportwiss. feodoroff b., dipl.-sportwiss. biallas, b.,...
TRANSCRIPT
PhD-Sportwiss. Rein, R., Dipl.-Sportwiss. Feodoroff B.,
Dipl.-Sportwiss. Biallas, B., &Dr.-SportwissWilke, Ch.
Studying Welding Ergonomics in Novice and Expert Welders Using
Virtual Welding
Studying Welding Ergonomics in Novice and Expert Welders Using
Virtual Welding
Center for Health at the German Sport University Cologne
Am SportparkMüngersdorf 6
50933 Köln
contact: [email protected]
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
ContentContent
• Background• Methods• Result
• Weld quality• EMG• Motion analysis
• Discussion• Outlook
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
Back disorders and musculoskeletal diseasesBack disorders and musculoskeletal diseases
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
LiteratureLiterature
• Musculoskeletal sickness absenceBurdorf, Naaktgeboren& Post, W. (1998)
• Shoulder pain in weldersHerberts, Kadefors, Andersson, &Petersén, I. (1981).
• Welding in two positionsLowe, Wurzelbacher, Shulman&Hudock, 2001
• Torch movementsErden&Tomiyama, 2008
• Training effectiveness between normal and virtual weldingStone, Watts, Zhong& Wei (2011)
• Assisted weldingFethke, Gant &Gerr (2011)
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
Research questionsResearch questions
• What are the differences between novice and expert welders with regard to posture?
• Which health related problems can be identified based on these differences?
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
MethodsMethods
• Group comparison• 6 Experts (Trainer at GSI-SLV Duisburg)• 7 Novices (Students at GSI-SLV Duisburg)
• Virtual welding using Lincoln Electric© VRTEX360™ in three positions:• PA• PF – hip high• PF – chest high
• Both groups had no prior experience with virtual welding
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
MethodsMethods
• Motion capturing using six high-speed infrared cameras(QualisysOqus 100)
• Muscle activity using an 8-Kanal Wireless surface-electromyography (EMG) device (NoraxonTelemyo)
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
MethodsMethods
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
ProceduresProcedures
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
Weld qualityWeld quality* * *
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
Neck musculaturNeck musculatur
Left Right
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
Neck angleNeck angle
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
Lower back musculatureLower back musculature
Left Right
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
Trunk torsionTrunk torsion
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
Trunk inclinationTrunk inclination
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
SummarySummary
• Clear postural differences between expert and novice welders• Less asymmetric muscular activation in
experts• More upright posture in experts• More frontal posture in experts
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
DiscussionDiscussion
• Results can be used for a prevention program• Virtual welding provides new opportunities to
work towards a healthy work place• At present, no scientific studies comparing virtual
and real welding are available
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
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WeldingergonomicsRein, Feodoroff,Biallas, &Wilke
AcknowledgementsAcknowledgements
WeldingergonomicsRein, Feodoroff,Biallas, &Wilke