No crunches needed — tighten your core and build full-body strength in 30 minutes with Pilates and light dumbbells

Grab some light dumbbells and try this trainer's 30-minute Pilates workout to strengthen your core and build real strength.

Ditch sit-ups and crunches — blast your abs in 10 minutes with this 4-move standing core workout

If you’re not a fan of sit-ups and crunches then you can stay standing with this 10-minute, 4-move abs workout that uses a ...