Figure 1
From: Evaluating the energetics of entrainment in a human–machine coupled oscillator system
System schematic and images. (a) A schematic of the oscillator system is depicted in the sagittal plane. (b) Images of a subject walking in the system during a trial, from the side and from behind. Downward force came as the resultant of self-equalizing oblique cables. A curtain was used to blind the subject from any motion of the pulleys or motors, and headphones were used to play ambient noise to block out rhythmic sounds from the system. The headphones were also used to play a metronome beep during portions of the experiment. A more detailed description of the system can be found in the Supplementary Materials.
