References
- http://www.latimes.com/travel/la-trb-fitbit-global-workouts-20150824-story.html
- https://www.precor.com/en-sa/commercial/cardio/treadmills/trm-833-treadmill
- http://elbowroomdesign.com/musings/230/bad-design-freespirit-treadmill-interface/
- https://medium.com/@wlmsng/rethinking-treadmill-interface-280f03ae7e03