If crunches are causing a sore neck instead of stronger abs, you're doing them wrong ... but it's a key part of Collins' ...

This quick barre-inspired workout builds strength and endurance, improves posture, increases flexibility, and more.

Dance funk blends jazz and hip-hop for low-impact, high-energy cardio. Discover why people love this joint-friendly workout ...

Caleb Marshall, aka The Fitness Marshall, explains why dance is a great fitness option for all ages, ability levels and body types.

Find your inner dancer by trying this 20-minute barre-inspired workout created by Sears ... including your obliques (side abs), and improve coordination with this exercise. Photo: Brittany ...