Mining Contract: Exoskeletons as an Innovative Approach to Prevent Musculoskeletal Disorders in Surface Stone Mining

Contract # 75D30120C08385
Start Date 9/1/2020
Research Concept

This proposal addresses work-related musculoskeletal disorders (WMSD) risk reduction using a recent innovative intervention: occupational exoskeletons. Exoskeletons are wearable systems that can assist, support, or augment the wearer during various physical activities. Existing evidence supports that use of an exoskeleton is a promising approach to control WMSD risk and improve work performance for several occupational tasks. This is particularly the case for passive exoskeletons (with no electrical power source), which are more mature than emerging powered exoskeletons. At present, though, there is no evidence specific to the mining industry. Opportunities and barriers to exoskeleton adoption will be identified, task-specific evaluations of exoskeleton efficacy will be completed, and guidance regarding exoskeleton implementation strategies, with a long-term goal of advancing exoskeletons in mining to prevent WMSDs will be developed.

Contract Status & Impact

This contract is ongoing. For more information on this contract, send a request to mining@cdc.gov.

Work-related musculoskeletal disorders (WMSDs) of the back and the upper extremities are an important problem in surface mining, for which new, effective intervention methods are needed. Our long-term goal is to support the safe and effective adoption and use of exoskeletons to control WMSD risks in mining, by developing practical exoskeleton implementation strategies and guidelines. Our immediate goal in this application is to develop an initial, practical knowledge base to enable the safe adoption and effective use of passive exoskeletons for selected manual tasks in surface mining. The work proposed here supports the primary goal of the MINER Act technology mandate, to “improve/increase the use of technology in mines to improve mining worker and health.” Specifically, the proposed work will provide evidence to: 1) demonstrate the potential for EXO technology to improve safety and/or health of mining workers; 2) reveal potential barriers to EXO application in a mining environment, and guide the implementation of EXOs while considering such barriers; and 3) establish the efficacy of EXO technology based on in-mine testing.

This will be accomplished through three specific aims, using a mix of qualitative and quantitative methods:

Aim 1: Identify opportunities in surface stone mining for the application and assessment of

EXOs by engaging industry stakeholders. With the support of industry partners (see Letters

of Support), semi-structured interviews and questionnaires with industry stakeholders, including miners, supervisors, safety managers, and industry leaders will be completed. Outcomes of this Aim will provide a clear understanding of expectations, concerns, and opportunities of EXO use specifically in surface stone mining.

Aim 2: Quantify the benefits and risks of EXO use for select manual tasks in surface stone

mining. Since exoskeleton benefits and limitations are specific to EXO designs and are task specific,

laboratory-based studies will be completed to quantify the benefits and limitations or risks of EXOs for targeted manual mining tasks in various task conditions. The impacts of using different EXO designs will be determined using a broad set of objective and subjective measures that capture work performance, physical demands, usability and preference, and safety.

Aim 3: Refine initial guidelines for EXO use through the assessment of the perceived safety,

effectiveness, and acceptability of EXO use by surface stone mining workers in a realistic

context. Guidelines for EXO use in surface stone mining that will be evaluated and refined through field testing will be developed. The initial guidelines will be used in practice to inform workers/supervisors in selecting and using EXOs effectively during their manual tasks. Outcomes will capture the effects of using an EXO during diverse manual surface rock mining tasks, help refine the initial EXO guidelines, and help in the future to assist those in the mining sector regarding best practices for the safe, beneficial use of EXOs.


Page last reviewed: 6/25/2021 Page last updated: 6/23/2021