FINGER DISABILITIES AND HIGHER LEVEL TASKS – DEVELOPING AND VALIDATING MTM MULTIPLIERS
Keywords:Finger disability, manual materials handling, MTM, PMTS.
MTM multipliers are presented for higher level tasks such as manual lifting, lowering, carrying, and assembly with hands and assembly with manual tools. These MTM multipliers and those developed in the previous work were applied to estimate the cycle time of individuals with finger disabilities for a combination assembly and handling task. Once the cycle time was estimated, the actual task was performed and the performance cycle time was determined from video analysis. The estimated and observed cycle times were compared. Additionally, estimated and observed elemental times were compared. The results of statistical comparison indicated that the difference between the estimated and actual cycle times was insignificant (α ≥ 0.10). Further, elemental times based on observation were not significantly different from those estimated from multipliers established in the earlier work and the work presented here.
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