Unlike crunches, which mainly train your abs to flex your spine, bear plank pull-throughs teach your core to resist movement.
You don’t necessarily have to do floor moves like push-ups and crunches to get stronger, and this standing Pilates workout ...
These simple press-up and sit-up upgrades challenge your muscles in new ways, improve coordination and help you get more from every rep The post Your press-ups and sit-ups aren’t working hard enough.