Affiliations: [a]
Department of Kinesiology, Neuromechanics Laboratory, Mississippi State University, Mississippi State, MS, USA
| [b]
Department of Health, Physical Education and Recreation, University of North Alabama, Florence, AL, USA
| [c]
Department of Human Studies, The University of Alabama at Birmingham, Birmingham, AL, USA
| [d] Human Performance Laboratory, Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, MS, USA
Correspondence:
[*]
Address for correspondence: Harish Chander, PhD, Assistant Professor: Biomechanics, Co-Director: Neuromechanics
Laboratory, Department of Kinesiology, Mississippi State University, Mississippi State, MS 39762, USA. Tel.: +1
662 202 7977; Fax: +1 662 325 4525; E-mail: hchander@colled.msstate.edu.
Abstract: 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.
Keywords: Ergonomics, fall prevention, balance, human factor, personal protective
equipment
