The linear jammer is an explosive pressing movement performed using an angled barbell anchored at floor level in a landmine device. It can also be performed by sticking a barbell in the corner of a room, preferably in a towel to protect the walls. The linear jammer involves pressing the weight into the air, then catching it with the other hand. The movement focuses primarily on the muscles of the shoulders or deltoids. It can be trained in traditional muscle and strength-focused rep ranges, for lower reps with a focus on explosive pressing power, or for higher reps.
May be more shoulder-friendly than explosive bench or overhead presses
Intense stabilization challenge to the core
Trains eccentric strength in the shoulder muscles
Single-arm training focuses on each side individually, addressing potential imbalances
Position a bar into landmine or, lacking one, securely anchor it in a corner. Load the bar to an appropriate weight and position the handle attachment on the bar.
Raise the bar from the floor, taking the handles to your shoulders. This will be your starting position.
In an athletic stance, squat by flexing your hips and setting your hips back, keeping your arms flexed.
Reverse the motion by powerfully extending through the hips, knees, and ankles, while also extending the elbows to straighten the arms. This movement should be done explosively, coming out of the squat to full extension as powerfully as possible.