Target heart rate is just one way to measure the intensity of your workout, and doesn't always work well for everyone. My suggestion would be to try a different method, such as the Talk Test or Rate of Perceived Exertion. Here's a link with more detail on those:
I've just started using my local gym. The instructor gave me a tour of the equipment and wrote a program for me. He said I should aim to get my heart in the range of 140-160 bpm. I went back the other day and started the program. I am really struggling to get my heart rate up high enough! (e.g. on the exercise bike, my program was, at level 5, to cycle for 1 minute at 90+ rpm, and then do 30 seconds at 50-60 rpm, and so on for ten minutes). My heart rate only just got to 140. Am I best to increase the level (on the machine) I'm working at, or to exercise for longer? I'm a distance person, rather than a sprinter- but I also want to burn the most calories possible in the quickest time. Thanks
SparkPeople, SparkCoach, SparkPages, SparkPoints, SparkDiet, SparkAmerica, SparkRecipes, DailySpark, and other marks are trademarks of SparkPeople, Inc. All Rights Reserved.
SPARKPEOPLE is a registered trademark of SparkPeople, Inc. in the United States, European Union, Canada, and Australia. All rights reserved.