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Why Do I Shake During Strength Training?

You Asked: Why Do I Shake During Hard Exercises?

Dear Fit,
I tried out a new strength training class at my gym, and it was awesome. It uses dumbbells, resistance bands, gym balls, and mat exercises to tone your whole body. There were definitely a lot of new moves I'd never done before, and during one of the exercises, where you're balancing on your bum in a V-position, and lowering your torso and legs toward the floor, I was shaking uncontrollably. It was kind of embarrassing. This happened during some other really challenging moves, and I'm wondering why this happens, if it's bad for me, and if it'll ever go away.
—Trembling and Shaking

There are two things you should know about your body shaking. One, it's completely normal, so it's nothing to be embarrassed about and I bet if you had looked around you would see your classmates trembling along with you.

Your body shaking during strength training isn't a bad thing. It just means that your muscles are working hard and are not used to the demands you're placing on them. Meaning they're just not strong enough yet. The trembling is caused by your muscles grabbing and releasing one another as they lengthen and shorten. Once your muscles become accustomed to doing these new exercises, that action will become smoother and your trembling will stop.


Since quivering means that your muscles are hard at work, you just want to be careful not to overdo it, since you can end up tearing a muscle. Gradually work your way up to challenging exercises. Either do modifications, less reps, or hold difficult positions for less time. Keep up with the class, and as your body becomes stronger, you'll be able to say sayonara to the shaking.

Any other shakers out there? Tell me the move that gets ya!

Image Source: Laughing River Yoga
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