Daniel E. Welcome

ORCID: 0000-0003-2621-208X
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About
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Research Areas
  • Effects of Vibration on Health
  • Ergonomics and Musculoskeletal Disorders
  • Muscle activation and electromyography studies
  • Structural Engineering and Vibration Analysis
  • Noise Effects and Management
  • Musculoskeletal pain and rehabilitation
  • Vehicle Noise and Vibration Control
  • Occupational Health and Safety Research
  • Motor Control and Adaptation
  • Agriculture and Farm Safety
  • Balance, Gait, and Falls Prevention
  • Mechanics and Biomechanics Studies
  • Advanced machining processes and optimization
  • Automotive and Human Injury Biomechanics
  • Tactile and Sensory Interactions
  • Mechanical Engineering and Vibrations Research
  • Sports Performance and Training
  • Cerebral Palsy and Movement Disorders
  • Vibration Control and Rheological Fluids
  • Quality and Safety in Healthcare
  • Manufacturing Process and Optimization
  • Orthopedic Surgery and Rehabilitation
  • Spaceflight effects on biology
  • Advanced Machining and Optimization Techniques
  • Textile materials and evaluations

Health Effects Institute
2025

National Institute for Occupational Safety and Health
2015-2024

The analysis of the mechanics contact interactions fingers/handle and stress/strain distributions in soft tissues fingertip is essential to optimize design tools reduce many occupation-related hand disorders. In present study, a three-dimensional (3D) finite element (FE) model for proposed simulate nonlinear time-dependent responses static dynamic loadings. FE incorporates anatomical structures finger: skin layers (outer inner skins), subcutaneous tissue, bone nail. (inner tissue) are...

10.1080/10255840600603641 article EN Computer Methods in Biomechanics & Biomedical Engineering 2006-02-01

The vascular symptoms of hand-arm vibration syndrome, including cold-induced vasospasm, are in part mediated by increased sensitivity cutaneous arteries to sympathetic stimulation. goal the present study was use a rat tail model analyze effects on function and alpha-adrenoceptor (AR) responsiveness. Rats were exposed single period (4 h, 125 Hz, constant acceleration 49 m/s2 root mean square). physical or biodynamic response demonstrated transmissibility resonance at this frequency, similar...

10.1152/japplphysiol.00761.2005 article EN Journal of Applied Physiology 2005-12-09

Vibration-reducing (VR) gloves are commonly used as a means to help control exposures hand-transmitted vibrations generated by powered hand tools. The objective of this study was characterise the vibration transmissibility spectra and frequency-weighted VR at palm in three orthogonal directions. Seven adult males participated evaluation seven glove models using three-dimensional hand-arm test system. Three levels coupling force were applied experiment. This found that, general, most...

10.1080/00140139.2013.838642 article EN Ergonomics 2013-10-25

Dentists, dental hygienist, and veterinary technicians using drills, scalers polishers are at risk of developing sensorineural deficits in the fingers hands. The goal this study was to determine whether exposure high-frequency vibration contributed changes sensory function. tails rats were exposed 1250 Hz (constant acceleration 49 m/s2) for 4 hours per day, 10 days. effects on nerve function, vascular function measured. Vibration increased sensitivity applied pressure transcutaneous...

10.1097/jom.0000000000003376 article EN PubMed 2025-02-28

For exposure to hand-transmitted vibration (HTV), personal protective equipment is sold in the form of anti-vibration (AV) gloves, but it remains unclear how much these gloves actually reduce or prevent development hand-arm syndrome workplace. This commentary describes some issues that surround classification AV assessment their effectiveness and applicability The available information shows are unreliable as devices for controlling HTV exposures. Other means control, such using alternative...

10.1093/annhyg/meu089 article EN The Annals of Occupational Hygiene 2014-11-07
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