learning the ropes

things I made at ITP and after: sketches, prototypes, and other documentation

Monday, February 4, 2008

Exercise Equipment Investigation and Observation

I visited the Coles Athletic Center at NYU with Lisa Lurie to observe gestures and get a sense of the haptic feedback that exercise machines provide. While Lisa worked out on the rowing and elliptical machines, I recorded my observations by sketching. I also spent some time working out on the machine to perceive the force feedback it delivered.

General Observations
- When you step into the workout room, all you can hear is the sound of whirring equipment
- The row of elliptical machines looked like a massive multi-cylinder engine as the pistons moved in and out.

Rowing Machine
Gesture Drawings-1 Gesture Drawings-2 Gesture Drawings-3 Gesture Drawings-4
- Lisa pointed out that the trade-off of energy on the rowing machine is pleasing. In the first half of the cycle, you work to pull the handle to your abdomen. To complete the cycle, you allow the handle to return to its starting point and the machine does the work.
- The rowing machine provides a great deal more resistance than my pulley.
- There is a fan in the rowing machine. Interestingly, the fan spins in only one direction. This may be useful for me. It raises the question of whether the rope&pulley needs to have some sort of inertia. I was thinking about whether to add weights to the pulleys, but another way of approaching this is to make the pulleys behave like bicycle wheels: pulling on the rope adds energy to the system, but the rope won’t continue to spin. This may be a tricky mechanism to built.
- The rowing machine works out a bunch of muscle groups. A body takes several different shapes while using the machine from very compressed to fully extended.
- The rowing machine is designed ergonomically for the action it is meant to receive. The handle exits the machine at the height you should be pulling it towards on the abdomen.
- The sound of the rowing machine corresponds to the motion… ZZZzzzZZzzZz z z z ZZZzzzZZzzZz z z z
- There is an expressive quality to the gestures the body makes when exercising on a rowing machine.

Elliptical Machine
Gesture Drawings-5 Gesture Drawings-6 Gesture Drawings-7
- We also tried the elliptical machines
- When using an elliptical machine, the torso is stationary. The arms and legs move and the shoulders twist, but the torso remains in practically the same position.

posted by Michael at 8:01 pm  

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