3. Butt Burner
Targets: Abs, glutes, and hamstrings
- Begin on all fours, knees under hips and hands under shoulders, back straight, abs tight and head in line with spine.
- Without arching back, raise right knee to right side. Extend leg straight back so toes are in line with hip.
- Bend knee to bring heel toward butt; lower and repeat.
- Do 16 reps; switch sides.