Four Minute Mile Running (4MM)

Project: Research project

Project Details

Description

A. Statement of Work We are proposing an additional Task 4 to enhance running speed: Task 4: Research and develop actuators that oscillate a mass to assist at the trunk to enhance hopping and running (PogoSuit_v1, Figure 1) and add an oscillating torque at the thigh to enhance running (PogoSuit_v2, Figure 2) Running poses very difficult challenges. There is nearly a threefold increase in energy required during the ankle gait cycle to transition from walking to running. In addition, the stride frequency nearly doubles, necessitating close to six times the peak power output from the muscle-tendon complex creating a demanding task for anyone. The key question remains can we add passive or active systems to the user to allow a person to run faster knowing that most exoskeleton systems suffer from both increased weight burden and metabolic cost. The merits of the proposal include: (1) teaching people how to run faster through performance augmentation and (2) demonstrate if it is possible to improve a runners speed from a 7MM pace to a 4MM pace.

Description

Aim 1: Enhance a runners speed from a 7 minute/mile pace to a threshold of a 5MM pace (minute/ mile pace) with an objective to increase speed to a 4MM pace. 1. Engineer a powered, elastic hip/knee system to aid in stance and swing phases with the goal of increasing stride frequency 2. Engineer a passive Achilles Tendon spring to aid in propulsion during stance Running poses very difficult challenges. There is nearly a threefold increase in energy required during the ankle gait cycle to transition from walking to running. In addition, the stride frequency nearly doubles, necessitating close to six times the peak power output from the muscle-tendon complex creating a demanding task for anyone. The key question remains can we add passive or active systems to the user to allow a person to run faster knowing that most exoskeleton systems suffer from both increased weight burden and metabolic cost. All human testing will be performed at the Army Research Lab under a separate proposal with guidance from Dr. Michael LaFiandra.
StatusFinished
Effective start/end date7/13/125/31/14

Funding

  • DOD: Defense Advanced Research Projects Agency (DARPA): $204,076.00

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