Impact of occupational footwear and workload on postural stability in work safety

• Published in: Work (Reading, Mass.) Vol. 64; no. 4; pp. 817 - 824
• Main Authors: Chander, Harish, Turner, Alana J., Swain, Jonathan C., Sutton, Phillip E., McWhirter, Katherine L., Morris, Cody E., Knight, Adam C., Carruth, Daniel W.
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01.01.2019; IOS Press BV
• Subjects: Design; Eye; Eye (anatomy); Footwear; Injury prevention; Occupational health; Occupational safety; Physical workload; Posture; Safety; Stability analysis; Task scheduling; Variance analysis; Working conditions; Workload; Workloads; Workplace accidents; human factor; personal protective equipment; Ergonomics; balance; fall prevention
• ISSN: 1051-9815; 1875-9270
• DOI: 10.3233/WOR-193043

BACKGROUND: The impact of occupational footwear and workload on postural stability has been studied previously to prevent fall-related workplace injuries. OBJECTIVE: The purpose of this study was to assess the impact of two types of occupational footwear [steel-toed (SB) and tactical (TB) work boots] on human balance, when exposed to physical workload. METHODS: Postural stability was evaluated in eighteen male participants in the following conditions: eyes open (EO), eyes closed (EC), eyes open unstable surface (EOU) and eyes closed unstable surface (ECU). Postural sway parameters were analyzed using a 2×3 repeated measures analysis of variance design [prior to (PRE) and twice post-workload (POST1 & POST2) separated by 10 minutes of rest]. RESULTS: Findings revealed that the use of SB resulted in greater postural stability, which could be attributed to the design characteristics of these footwear and that postural stability was negatively impacted immediately after the workload which could be attributed to the physical exertions during the workload. However, significant differences were limited to ECU with no visual and altered somatosensory feedback. CONCLUSION: Design features on occupational footwear can aid postural stability while physical exertional tasks can be detrimental. Findings can offer design and work-rest scheduling suggestions to improve work safety.