Seated Twist
The Seated Twist is a bodyweight core exercise that targets the obliques and abdominals through controlled torso rotation. By maintaining a slightly reclined seated position, it improves rotational mobility and core stability simultaneously.
Iridium analyzes your 7-day workout history to ensure this rotational movement does not pre-fatigue your core stability before heavy compound lifts. Since the primary resistance is your body weight, the system tracks your performance relative to your current weight and uses RPE trends to verify you are maintaining sufficient intensity for progressive overload.
Form Cues
- Sit with knees bent and feet flat on the floor
- Lean back slightly until you feel your abs engage
- Rotate your shoulders and chest to each side
- Keep your spine tall and chest proud
- Follow your hands with your eyes as you twist
- Don't round your lower back or slouch
- Don't just move your arms side to side
- Don't let your knees sway excessively
- Don't rush the movement using momentum
Common Mistakes
- Rounding the spine (slouching)
- Moving arms instead of rotating torso
- Excessive hip shifting
- Rushing the tempo
- Not leaning back enough
Muscles Worked
This exercise primarily targets the internal and external obliques, which are crucial for rotational power and lateral stability. It also heavily engages the rectus abdominis and transverse abdominis isometrically to maintain the reclined posture and protect the lower back.
Primary
Secondary
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