Caden said:
... would it at least be worth it for trying to better track my progress?....
That's one of the key problems, you can't really track your progress. Say you do a certain ride and average say 160 bpm for a key portion. A month later you do the same ride and hold 155 or 165 or 170 bpm, that doesn't really tell you anything. You could be better rested, more tired, in a different emotional state, hotter, cooler, the list goes on....
You can pair up your HR with speed for a given section or time to complete a fixed distance or to climb a particular hill. But again the HR won't really tell you anything, the speed or elapsed time might give you clues to fitness but you'll get that info with or without a HR number. Again a higher or lower HR for a higher, lower or same speed could and often does result from a lot of different factors independant of your fitness gains or losses.
And HR is pretty lousy for pacing your training intervals or even time trials. If you do ride a steady pace it takes several minutes for your HR to reach the average for the interval. If you get a bit lazy and ease off mid interval the inherent averaging and slow response of HR can give you a false sense of intensity and encourage you to do "burst and float" style efforts which don't really hold you in level and isn't the best way to train(unless you're doing microintervals). If you attempt to speed up the curve and get your HR up earlier in the effort you'll have to go much too hard in the early part and you'll fade later on when it catches up to you. So to pace an effort well based on HR you'll have to be patient, allow the HR to respond over time and then tune into your breathing, perceived exertion, etc. to make sure you don't get lazy mid effort. IOW, you'll pace the start on perceived exertion and then use perceived exertion to keep yourself honest till the end. Bottom line, you'll be pacing on perceived exertion which doesn't require the investment in a HR strap or give the false sense of accuracy that we get from a digital display and numeric readout.
FWIW, I trained with HR religiously for many years, read everything I could on the subject, attended camps and clinics that pushed the value of HR and payed highly respected coaches that were deeply committed to HR based training. My results sucked! Power training has shown me why but the funny thing is the longer I train with power the more I realize that as much as I like reviewing my power data I don't really need the PM to train effectively now that I know what I'm trying to accomplish.
I've posted this on these forums before, but if I had to do it all over again and a PM wasn't in the budget I'd skip the HRM and pace my efforts by simply chosing interval durations that target specific metabolic processes and riding them roughly as hard and steady as I can while still being able to complete the individual efforts and the sets. So if I'm targeting L6 I'll find a stretch of road that allows a minute to two minutes of full on effort and do it a bunch of times. If I go too hard I'll know it soon enough and if they feel too easy I'll bump up the next effort or the next session. It's pretty much a self correcting process and the power data is nice to make sure I rode them steady but not really necessary. I'm sure not staring at my PM display during an L6 effort, I'd likely crash if I tried that.
Here's some typical durations for various efforts:
- L7 sprints: 6 to 15 seconds
- L6 Anaerobic tolerance: 1 to 2 minutes
- L5 VO2 Max: 3 to 6 minutes
- L4 Threshold: 10 to 30-45 minutes
- L3 Tempo: 45 minutes to 3 hours
- L2 Endurance: 2 to 6 hours
Yeah they overlap more than I've indicated and it's all a continuum but these are pretty typical training efforts for these levels. Do these pretty close to your best effort for the durations listed and you'll see progress. You might have to measure that progress by the time it takes to climb a certain hill, your results from a regular TT course, how much distance you cover in your typical training intervals, etc. but the progress will come from targeting near maximal efforts for the appropriate durations not the tool you use to measure the efforts.
When my PM batteries go dead mid ride I have to remind myself that the only data that really counts is what's recorded in my legs.......
Heresy on these boards I know

Good luck,
-Dave