New Leaf's Active Metabolic Training program and test is offered in select health clubs, personal training studios, medical fitness facilities, and performance training centers throughout North America and the UK where a simple 10-15 minute assessment determines your unique response to exercise through measurement of the amount of oxygen and carbon dioxide you breathe. For more information and to locate the nearest New Leaf Active Metabolic Training facility, go here.

This metabolic profile allows New Leaf to assign personalized heart rate training zones and programmed exercises to take the guesswork out of works. Consumers can access their information and track workouts at New Leaf's online portal, eNewLeaf.com.

Leveraging the iPhone's Internet connection to eNewLeaf.com, iNewLeaf downloads a user's customized exercise plans and training zones as well as other data. iNewLeaf tracks not only standard metrics such as heart rate and cycling speed, power and cadence but also provides actual calories and fat calories burned, TRUcal and FATcal. After a workout, iNewLeaf uploads the workout data to eNewLeaf.com without the need to perform any syncing process or procedure.

Additional hardware required is iTMP's US$149.95 Heart Link, which provides a wireless bridge from the iPhone or iPod touch to fitness sensors such as heart rate straps or cycling speed, cadence, and power sensors on your indoor or outdoor bikes. Heart Link also stores an entire workout's worth of data, compiling information even if the iPhone is interrupted by a call or if the iPhone is not present.