The L-sit is an exercise commonly used in gymnastics and fitness training that requires holding the body in a seated position with straight legs and feet raised off the ground. The L-sit requires significant core and upper body strength, as well as flexibility and balance. It is often used as a progression for more advanced gymnastic movements such as the planche and the handstand.
In CrossFit, the L-sit is commonly used as part of workouts that involve bodyweight exercises or gymnastic movements. For example, an L-sit might be incorporated into a workout that also includes pull-ups or dips. The L-sit can be performed on various equipment, such as parallettes, rings, or the floor, and can be scaled to accommodate different fitness levels.