title: Reducing the physical work load and strain of personal helpers through clothing redesign.
abstract: This study assessed the effects of redesigning clients' clothing on the physical work load and strain of personal helpers. Five women, aged 18-54 years, who helped persons with physical disabilities were measured at their worksites before and after development of the clothes worn by clients. The physical work load and strain of the helpers' dressing/undressing of clients were determined from their hand and back movements, work time, muscular activity, heart rate (HR), percentage of heart rate range (%HRR), and rating of perceived exertion (RPE). The muscular activity of the right (p=0.05) and left (p=0.02) trapezius muscles, HR (p=0.03), and %HRR (p=0.03) of the helpers were lower when the new outerwear was used in place of traditional outerwear. Four helpers reported lower perceived exertion, and three had shorter work time with the new outerwear. This study showed that redesigning clients' clothing can help reduce the physical work load and strain of personal helpers.
authors.affiliation: Unit of Ergonomics, Finnish Institute of Occupational Health, Box 93, FIN-70701, Kuopio, Finland. nina.nevala@ttl.fi
authors.forename: Nina
authors.initials: N
authors.lastname: Nevala
authors.forename: Jaana
authors.initials: J
authors.lastname: Holopainen
authors.forename: Oili
authors.initials: O
authors.lastname: Kinnunen
authors.forename: Osmo
authors.initials: O
authors.lastname: Hänninen
mesh_terms: D000293:Adolescent; D000328:Adult; D003020:Clothing; D006233:Persons with Disabilities; D004576:Electromyography; D006804:Ergonomics; D005260:Female; D018576:Home Health Aides; D006801:Humans; D008297:Male; D008875:Middle Aged; D013180:Sprains and Strains / Q000209:etiology / Q000517:prevention & control*; D013647:Task Performance and Analysis; D014743:Videotape Recording; D014910:Wheelchairs; D016526:Workload