FlexRussian Twists
Muscles worked
- External Oblique
- Internal Oblique
- Rectus Abdominis
- Transverse Abdominis
- CategoryCore
- Default target4 sets × 20–20 reps
- EquipmentDumbbells
- Movement patternCore
- Training stylesHypertrophy, HIIT
Technique
Setup
Sit on the floor with knees bent. Lean back at a 45-degree angle, keeping your back straight. Lift your feet slightly off the floor.
Movement
Rotate your torso from side to side, bringing a dumbbell or your hands toward the floor beside your hips.
Form Tip
Follow your hands with your eyes to ensure your entire torso is rotating, not just your arms. Focus on the obliques.
Increase Difficulty
Use a heavier dumbbell or straighten your legs for more leverage challenge.
Decrease Difficulty
Keep your feet on the floor or perform without added weight.
Hear the cue
The trainer's spoken setup and form tip for this exercise — the same clips Flex plays in a session.