Acute musculoskeletal injuries, such as lateral ankle sprains, are prominent lower-limb injuries seen during military fitness training programs. While military combat boots are assessed for a variety of conditions determining effective performance to slip resistance, tolerance to heat and cold, sole flexion, and toe compression, the current footwear evaluation methodology lacks quantifiable ankle-support metrics. A footwear stability test using a surrogate model with representative foot-ankle response is required to objectively evaluate ankle-support offered by combat boots. Currently, there exist several anthropomorphic testing devices (ATDs) that were developed to predict lower limb injury to humans during high-load vertical blast or frontal impacts. Previous work assessed the THOR 50th percentile male, Hybrid III 50th percentile male, and Hybrid III 5th percentile female ATDs against an ongoing volunteer study collecting dynamic ankle stiffness at 1 m/s. Those results demonstrated the need for an improved foot-ankle surrogate representing human response in this application. A surrogate model with representative human ankle response that integrates with a robotic system to evaluate lateral support of footwear is proposed.