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Sit-ups vs. crunches: Which exercise builds stronger abs?

• Sit-ups target your abdominal muscles, back muscles, and hip flexors, while crunches only target your abdominal muscles. • Neither sit-ups nor crunches alone burn abdominal fat. Overall activity and ...

Sit-Ups Vs. Crunches—Here’s Which Is Better

Plus, which move is more effective for strong abs.

You don't need sit-ups to sculpt strong abs, just these 4 moves and a kettlebell

Exercises like planks, sit-ups, crunches, and Russian twists all serve a purpose: they hit various muscles to build a ...
Lifehacker

How 'Sprint Interval Training' Compares to HIIT (and How to Do It)

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Sprint interval ...

I'm a Trainer and Here Are 5 Park Bench Exercises That Restore Leg Muscle Faster Than Squats After 60

A 40-year fitness expert shares 5 park bench exercises that restore leg muscle after 60 faster than squats — no gym needed.
Tom's Guide

I did 3 classic Pilates moves instead of sit-ups — here’s what happened to my core strength and spinal health

Workouts Not sit-ups or lunges — I use this simple Pilates exercise to sculpt strong obliques, inner thighs and hip stabilizers Workouts I tried a 10-minute hip flexor strengthening routine for two ...