Signs You’re Not Working Out Hard Enough

Some workout plans are better than others in terms of overall effectiveness.

— -- intro: Although any kind of physical activity is better than nothing, some workout plans are better than others in terms of overall effectiveness. While you may think you’re getting a good workout by spending an hour reading a magazine on the stationary bike, the truth is, if you’re leaving the gym with your make-up still perfectly intact, you’re probably not working hard enough.

But a fresh face isn’t the only way to tell you aren’t getting in a good gym session. If your workout isn’t working any more, one of these five reasons could be to blame.

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quicklist: 1category: Signs You’re Not Working Out Hard Enoughtitle: You’re not monitoring your heart rateurl:text:Whether you’re on a cardio machine or doing some high-intensity interval training (HIIT), your heart rate should fluctuate between 75% of your maximum when you’re just starting out, eventually building to 100%. (To roughly determine your maximum heart rate, subtract your age from 220). An easy way to track this is by using a heart-rate monitor that will let you know, in real time, where your heart is at. Some people mistake sweating to be the only indicator of working out hard enough, when in reality some people may just be more prone to sweating than others. A heart-rate monitor is simply the most effective way to gauge your intensity level. These days they’re easy to come by and definitely worth the investment. But if you don’t have one, go old school and stop to check your pulse halfway through your workout.

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quicklist: 4category: Signs You’re Not Working Out Hard Enoughtitle: You work out at the same intensity all the timeurl:text:Once you’ve been on a workout plan for a while and aren’t becoming as sore or tired, it might be time to up the intensity. If you want to gain lean muscle mass and definition, start adding more weight; if you’re using lighter weights to tone up, add some extra repetitions (Instead of 10-15 reps, try 25). If you’re doing cardio, try going a little faster or start incorporating more interval training into the mix. Because your body is constantly adapting, if you do the same thing over and over again, your body won’t be challenged enough to make a change. Be mindful that the more you work out, the more effort you’ll have to expend to keep making progress.

quicklist: 6category: Signs You’re Not Working Out Hard Enoughtitle: You’re not seeing physical changesurl:text:That’s not to say if you don’t see results after a week you should give up. After all, how long did it take for your body to get to where it is now? But if you’ve been consistently working out and eating healthfully for more than a few months and you haven’t noticed even a slight physical change—be it a number on the scale or inches lost depending on your fitness goals—then you might need to reassess your routine. It should be a slow progression if you’re doing it the right way, but a progression nonetheless.

This article originally appeared on Health.com.