Marc R. Stephens, MAED
Using data such as heart rate, weight tracking, and
other metrics to affect change in some aspect of
“Self-knowledge through numbers.”
Marc’s weight data from mid-2008 through mid-October 2012
A device can be worn to record
activity levels and other data through
Often associated with a website or
smartphone app to analyze the data.
A Variety of Trackers
- Functions as a digital watch
- Syncs with heart rate monitor and
other exercise equipment
- Sophisticated features
(more than we will use in this course!)
• How to wear the heart rate monitor
– strap around chest, with hard
plastic part facing outward and
centered over your xiphoid process
– dampen the plastic electrodes
on back of strap to establish better
• Sync the heart rate monitor
– About 30 feet distance between
sensors required while syncing to
prevent other HR strap signals from
interfering. Spread out!
Heart rate monitoring
220 - age = maximum heart rate
is only a ROUGH estimate!
Better calculation found here:
A network of
satellites orbiting the Earth
used to triangulate the
exact position of
a GPS receiver.
Google Earth and
GPS data used
together are a
fitness data gives one
the ability to pinpoint the data to a
specific time and place.
Image shows heart rate data shown along side a GPS trail.
Image from fitness tracking software rubiTrack
How’s the weather?
–Weather websites & apps
Live doppler radar means we can monitor the
website and head out when a window of
opportunity presents itself.
• Forecasts for longer-range planning