Validation of Torso Force Feedback Slope Simulation through an Energy Cost Comparison

This paper compares the energy cost of locomotion on a real slope and on a simulated slope using a tether force on the Sarcos Treadport. Walking and running both up and down slopes are investigated. Horizontal tether forces were based on f = Kmgsin( ) to simulate the slope . For uphill walking and running, average values of K were determined to be 0.84 and 0.78. For downhill walking and running, average values of K were determined to be 0.72 and 0.66. These values of K reinforce previous findings from psychological and biomechanical studies that found K equal to an average of 0.65.

• Type: Conference
• Year: 2005
• Where: HAPTICS
• Authors: Craig R. Parker, David R. Carrier, John M. Hollerbach
• Keywords: Average Values, HAPTICS 2005, Horizontal Tether Forces, Tether Forces, Virtual Reality