How many reps of the medicine ball sit-up throw should you start with?

Start with 2-3 sets of 8-10 throws, resting long enough between sets that every rep stays a crisp, controlled pass rather than a tired heave. Because the catch loads the abs eccentrically, quality drops fast once fatigue sets in, so stop a set short of failure instead of grinding out extra reps. Add a third or fourth set before you add reps within a set.

What can you use instead of a medicine ball for the sit-up throw?

A regular sit-up holding a light dumbbell or plate at the chest trains the same fast trunk flexion without the throw and catch. If you have a ball but no wall, a partner sitting a few feet away who tosses it back works just as well as a rebound surface.

What is the medicine ball sit-up throw good for, and who should skip it?

It builds explosive trunk flexion and trains the abs to decelerate a moving load, which suits athletes who need power in a braced core. Skip it, or keep the throw light, if your lower back rounds heavily under load or you have a history of disc issues, since repeated forceful flexion is the last thing that spine needs.

Intermediate

Medicine Ball Sit-Up Throw

The sit-up throw turns a standard crunch into a power exercise by asking the abs to accelerate the trunk and then transfer that speed into a throw at the top. Catching the ball on the way back adds an eccentric load that trains the abs to decelerate as well. It is a fun, competitive way to build explosive trunk flexion, best done with a partner or a wall close enough for a clean rebound.

Equipment: Medicine Ball
Body part: Abs
Type: Plyometric
Browse by muscle: Upper Rectus Abdominals, Lower Rectus Abdominals
Browse by movement: Horizontal Press, Spinal Flexion

How to do it

1
Sit on the floor with knees bent and feet anchored, holding the ball at the chest.
2
Lower the torso back toward the floor under control.
3
Fire the abs to sit up quickly and forcefully.
4
As you reach the top, throw the ball off the chest to a wall or partner.
5
Catch the returning ball at the chest and let it pull you back down.
6
Absorb the load into the next rep and continue the rhythm.

Tips

Throw at the very top of the sit-up so the trunk speed feeds the pass.
Keep the throw a crisp chest pass rather than a lazy heave with the arms.
Anchor the feet or have a partner hold them so you stay planted as you sit up fast, and lead with the ribs so the abs start each rep.

Variations

Common mistakes

The torso free-falls back to the floor between reps instead of lowering under control, so every rep restarts from a dead bounce rather than live ab tension.
A throwing spot too far from the wall turns the rebound into a slow lob instead of the crisp pass the rhythm depends on.
The chin juts and the neck leads the sit-up instead of the ribs driving toward the pelvis, straining the neck on every rep.
Catching the ball out at arm's length instead of at the chest turns the eccentric catch into a wrist-and-finger grab rather than a trunk deceleration.

Frequently asked

How many reps of the medicine ball sit-up throw should you start with?: Start with 2-3 sets of 8-10 throws, resting long enough between sets that every rep stays a crisp, controlled pass rather than a tired heave. Because the catch loads the abs eccentrically, quality drops fast once fatigue sets in, so stop a set short of failure instead of grinding out extra reps. Add a third or fourth set before you add reps within a set.
What can you use instead of a medicine ball for the sit-up throw?: A regular sit-up holding a light dumbbell or plate at the chest trains the same fast trunk flexion without the throw and catch. If you have a ball but no wall, a partner sitting a few feet away who tosses it back works just as well as a rebound surface.
What is the medicine ball sit-up throw good for, and who should skip it?: It builds explosive trunk flexion and trains the abs to decelerate a moving load, which suits athletes who need power in a braced core. Skip it, or keep the throw light, if your lower back rounds heavily under load or you have a history of disc issues, since repeated forceful flexion is the last thing that spine needs.

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