I would agree that probably 160 bpm is too high. Just because you can do it, does not necessarily mean it's good. I would usually exercise in the 160-190 bpm range and physically felt great. However, when I did a VO2 Max test that measured my anaerobic threshold (AT), it showed I was at 124 bpm.
My body never developed a good aerobic base, so though I could tolerate it (I felt), my body did not like me exercising at that rate.
Becky, why don't you try keeping your heartrate (starting maybe in the 120-130 bpm range) and gradually work up from there.
In 6-7 months timeframe and diligently controlling my exercise through a disciplined program, I went from 124 bpm AT to 136 bpm to 144 bpm.
It's better to go at a lower heartrate than higher.
Yes, it does take discipline when you're addicted to exercise to back off. Keep your heart rate down.
BTW, my excessive exercise, if it didn't change, would've given me a heart attack or some type of heart failure most likely before 40. Not a good thing. Just because you exercise, doesn't make it good for you if you go to the extreme.
Yes, good post. Check out this link~
http://www.primusweb.com/fitnesspartner/library/activity/thr.htm
I use HRR as mentioned in the link with my clients, as well as Borgs scale and the talk test.
Also, remember, the 'fitter' you are, the lower your max heart rate will be. I am 42, and very fit, and 75% max heart rate for me is 148 bpm. My resting heart rate is 58ish. I do not enjoy spending a lot of time above this. I am very comfortable at 136 bpm, this is the heart rate I will maintain for 5k and longer runs.
Good post and point mdolls. Exercise addiction is hard to deal with, and usually is only a symptom of a more serious underlying problem, usually and eating disorder. On a daily basis I see quite a lot of exercise bulimia, here is a paragraph from an article:
~Exercise Bulimia, the new eating disorder
Though many of us worry about getting enough exercise, there is such a thing as too much exercise. Regular exercise is a good thing, but more is not always better and in some cases, compulsive exercise can be just as dangerous as eating disorders like anorexia and bulimia. Compulsive exercise is just another tool some people use to purge their body of calories, much like a bulimic who binges and purges. In fact, there's even a name for it: Exercise Bulimia.~
I am going to bed, I exercised a lot and my body needs to rest. Even as a fitness instructor, I have to pace myself and have rest days. Tomorrow, Wednesday, is 2 yoga classes ( great for recovery) and personal training. My body is telling me to let it recover. I also consumed enough calories to support the demands, good calories, about 2600! Good night guys, rest and let your muscles and bones grow!
