
We're not talking crunches. This workout will challenge your midsection in ways you've never experienced before. Be ready to challenge your core. Works Well For: Core. Equipment Needed: Dumbbells, Chin-Up Bar (Optional).
7.2
7.9
7.0
8.2
7.5
7.3
6.5
6.3
6.7
6.6
6.6
6.8
7.1
6.1
8.0
8.8
6.9
6.5