Using Thermography to Evaluate the Effects of Arm Flexion and Loading on the Anterior Deltoid during a Simulated Overhead Task

摘要: Shoulder injuries are a focus of work related musculoskeletal disorder (WMSD) research due to rising healthcare costs, an aging workforce, and long recovery times. Substantial has been performed in the area shoulder WMSDs number risk factors have implicated their development; including static loads, repetition, deviated posture. However, knowledge underlying pathophysiological mechanisms is limited. Thermography provides non-invasive technique that may offer clues unknown physiological markers associated with injury development during job task performance. The objective this study was quantify anterior deltoid surface temperature changes as function changing demands. Skin deltoid, modified Borg CR-10 ratings, endurance time overhead exertions until exhaustion for two loads (15 30% MVC) angles (90 115) were quantified. Ten participants (5 males 5 females) participated free confounding conditions (such chronic or acute injury) required meet body fat percentile requirements. showed higher angle had reduced blood flow while there no differences exertion. Modified ratings not found be well correlated values. findings suggest workers performing should minimize posture when available prevent high developing WMSD.