Otis-Up
The Otis-Up is a beginner compound movement that activates 4 muscle groups simultaneously. It primarily targets the Abdominals, making it one of the more efficient exercises in RepStack's 873-exercise database.
Starting position
Ending position
Muscles Worked
The abdominals handles the primary load during this movement. The chest and shoulders and triceps assist as stabilizers throughout the range of motion.
How to Otis-Up
- 1
Secure your feet and lay back on the floor. Your knees should be bent. Hold a weight with both hands to your chest. This will be your starting position.
- 2
Initiate the movement by flexing the hips and spine to raise your torso up from the ground.
- 3
As you move up, press the weight up so that it is above your head at the top of the movement.
- 4
Return the weight to your chest as you reverse the sit-up motion, ensuring not to go all the way down to the floor.
Common Mistakes
- • Brace your core before initiating the movement — maintain tension throughout the entire range of motion.
- • Control the eccentric (lowering) phase for at least 2 seconds to maximize muscle fiber recruitment.
- • Squeeze at peak contraction for a full second — this is where most of the growth stimulus occurs.
Similar Exercises
Frequently Asked Questions
What muscles does the Otis-Up work?
The Otis-Up primarily works the Abdominals. Secondary muscles include the Chest, Shoulders, Triceps, which assist during the movement.
Is the Otis-Up good for beginners?
Yes, the Otis-Up is suitable for beginners. Start with light weight to master the 4-step form before adding load.
What equipment do I need for the Otis-Up?
You need other to perform the Otis-Up. Most commercial gyms will have this available.
Track Your Progress
RepStack logs every set, calculates your e1RM, and coaches progressive overload — automatically.