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Anonymous
>>17912 Crunches are 100% not pointless. If someone is doing them wrong, they're not doing crunches. If you do them right, they're a great ab exercise.
For the curls - stick with the heavier weight and just keep working. It'll get to the point where you'll have to buy heavier weights. And 35 isn't that bad, at all. I've been lifting a few years and I'm using 45lbs for 3x10 reps.
But to build your abs ("getting" abs is 2 parts -one building, two revealing through fat loss), you should do several sets of fewer crunches. Your sets should end when you start to really feel it in your abs. Probably about 15-25, depending. Do 4 sets.
Like was mentioned, dont use your hips. Make sure you focus on your abs. You should feel your abs and stomach getting tighter. Don't roll your shoulders up or jerk your neck or lift your hips. Contract your stomach. Even if you range of motion is low (like it is in a proper crunch) as long as you feel the right muscle working, you're doing good.
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