What muscles does a crunch work?

Like situps, crunches help you build muscle. But unlike situps, they work only the abdominal muscles . This intense muscle isolation makes them a popular exercise for people trying to get six-pack abs. This also makes them ideal for strengthening your core, which includes your lower back muscles and obliques.

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What are crunches good for?

Like situps, crunches help you build muscle . But unlike situps, they work only the abdominal muscles. This intense muscle isolation makes them a popular exercise for people trying to get six-pack abs. This also makes them ideal for strengthening your core, which includes your lower back muscles and obliques.

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Will Russian twists give you abs?

“The Russian twist targets all the muscles in your core, making it a great abs exercise when you’re tight on time ,” says Peter Donohoe, NASM-certified personal trainer, core strength teacher at The Boston Ballet, and Functional Performance Specialist for Hydrow in Carlisle, MA.25 Oca 2019

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