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Ditch sit-ups — this 5-move abs workout builds core strength and improves your posture in just 10 minutes

I don't think I'm alone in saying sit-ups aren't fun. I don't know if it's because I need to have someone or something there to make sure my feet stay put on the ground during the full movement or ...
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 ...
New York Post

This ‘powerhouse workout’ only makes you push yourself for 20 seconds at a time

For those who live to sweat — but maybe want a chance to fully catch their breath — SIT is the new HIIT. HIIT, or high-intensity interval training, includes bursts (typically 30 seconds to a few ...
Tom's Guide

Ditch sit-ups and crunches — this 5-move standing abs workout will help you build a stronger and more sculpted core

Workouts I’m a personal trainer who works with seniors: These are the 4 core exercises I wish everyone would do before they turn 60 Fitness ‘I’m a Pilates teacher and these are the 5 core exercises I ...