Caliber:
The two best books I've read on heart rate training are by Sally Edwards and John Parker. Do a search on Amazon.com and you'll come up with several of their titles.
Essentially, to determine the heart rate at which you will optimize fat burning you must first calculate your Maximum Heart Rate. The usual formula is 220 minus your age. However, if you have a heart rate monitor you can do a series of 4 short hill repeats and probably hit your actual max. For instance, my calculated MHR is 163. However, my actual MHR based upon the readings I get from my Polar Coach HR monitor is 189!
Assuming your MHR is 200, then to burn fat most of you guys should be training at 140-145 bpm. For a fit male, a running pace that generates that heart rate will feel like fast walking. If you train too slowly, i.e. under 140 in this example, you get cardio benefits, but no weight loss and almost no training effect (i.e. increased ability to run faster and longer). If you train too high, say 160, you will burn more carbs and less fat. (However, the increased intensity WILL burn more calories per hour than the less intense training.)
So, if you want to lose weight by running, run slowly. Build a large base, several hundred miles is recommended, then add distance and speed work. Before you know it, you'll be taking first in local 5K races.
The two best books I've read on heart rate training are by Sally Edwards and John Parker. Do a search on Amazon.com and you'll come up with several of their titles.
Essentially, to determine the heart rate at which you will optimize fat burning you must first calculate your Maximum Heart Rate. The usual formula is 220 minus your age. However, if you have a heart rate monitor you can do a series of 4 short hill repeats and probably hit your actual max. For instance, my calculated MHR is 163. However, my actual MHR based upon the readings I get from my Polar Coach HR monitor is 189!
Assuming your MHR is 200, then to burn fat most of you guys should be training at 140-145 bpm. For a fit male, a running pace that generates that heart rate will feel like fast walking. If you train too slowly, i.e. under 140 in this example, you get cardio benefits, but no weight loss and almost no training effect (i.e. increased ability to run faster and longer). If you train too high, say 160, you will burn more carbs and less fat. (However, the increased intensity WILL burn more calories per hour than the less intense training.)
So, if you want to lose weight by running, run slowly. Build a large base, several hundred miles is recommended, then add distance and speed work. Before you know it, you'll be taking first in local 5K races.