Breathing
Inhale before or during the controlled descent, then exhale as you stand. Maintain trunk support without holding your breath for the whole repetition.
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The Speed Box Squat primarily works the quadriceps, with the calves, glutes and hamstrings supporting the movement. It is a powerlifting movement performed with barbell.

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Movement instructions
Attach bands to the bar that are securely anchored near the ground. You may need to choke the bands to get adequate tension.
Use a box of an appropriate height for this exercise. Load the bar to a weight that still requires effort, but isn't so heavy that speed is compromised. Typically, that will be between 50-70% of your one rep max.
Position the bar on your upper back, shoulder blades retracted, back arched and everything tight head to toe. This will be the starting position.
Unrack the bar and position yourself in front of the box. Sit back with your hips until you are seated on the box, ensuring that you descend under control and don't crash onto the surface.
Pause briefly, and explode off of the box, extending through the hips and knees.
Technique guidance
Inhale before or during the controlled descent, then exhale as you stand. Maintain trunk support without holding your breath for the whole repetition.
General guidance based on the exercise and equipment. It is not personal coaching or medical advice.
Your progress
Keep the same barbell setup, range of motion and recording method when comparing Speed Box Squat sessions.
Weight, repetitions and completed sets.
Example: 3 sets of 8 reps at 30 kg. Next time, record the actual result, even if it is the same.
Look for more repetitions at the same weight, or a heavier weight for comparable repetitions. Total weight lifted also changes when you add sets, so it is not a strength score.
Read the tracking guideThe examples show how to keep a record. They are not workout targets or a personalised training plan.
See how Jijibisha tracks your progressMuscles
Muscle guide
Quadriceps is the primary muscle group. The lighter highlights show the supporting muscles involved in the movement.
Swap it
Different equipment, same muscle
These movements also target the quadriceps using something else.
Related
Related movements
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