Get a heart rate monitor. It is probably the most accurate estimate for calories burned you can get, outside a lab.
As a side note, my HRM and what SP says are generally really close. The machines (treadmill, elliptical, stair climbers) are always a hundred or more of calories higher than what my HRM indicates.
There are no elevators in the house of success.
H. H. Vreeland
You may have to fight a battle more than once to win it- Margaret Thatcher
| current weight: 187.0