Plank Jack Slide With Towel

Body Part: Waist

Muscle: Glutes

Equipment: Body Weight

Plank Jack Slide With Towel is a bodyweight core and hip-stability exercise performed from a high plank on a smooth floor. The feet slide apart and back together on towels instead of jumping, so the movement keeps constant tension on the trunk, hips, and legs while reducing impact. It is useful when you want a hard conditioning drill that still demands control through the shoulders, abs, glutes, and adductors.

The towel slide changes the feel of a normal plank jack. Because the feet are moving against the floor, the trunk has to resist rotation, the pelvis has to stay level, and the shoulders have to keep the body supported over the hands. That makes setup important: hands should be planted under the shoulders, elbows extended but not locked, and the body held in one long line from head to heels before the first slide starts.

Each repetition works best when the feet move only as far as you can keep the lower back quiet. Slide the feet out to a wider stance, pause long enough to keep the ribs stacked over the pelvis, then draw the feet back together under the hips with the same steady pace. The glutes and inner thighs help control the sliding legs, while the core prevents the torso from sagging or twisting as the feet travel.

This exercise fits well in a warm-up, accessory circuit, or conditioning block where you want abdominal tension, shoulder endurance, and hip control in the same drill. It is also a practical option when jumping is not ideal. The movement should feel smooth rather than frantic; if the shoulders drift forward, the hips start bouncing, or the lower back takes over, shorten the range and slow the tempo until the plank stays solid.

Use a towel or sliders that move evenly on the surface, and choose flooring that lets both feet travel without jerking. The goal is not speed. The goal is to keep the plank position strong while the feet repeatedly open and close under control.

Instructions

• Place a towel or slider under each foot and set up in a high plank with your hands under your shoulders.
• Stack your shoulders over your wrists, extend your legs, and make one straight line from your head to your heels.
• Squeeze your glutes and brace your abs before the feet move so your pelvis stays level.
• Slide both feet out into a wider plank jack position while keeping your hips from lifting or twisting.
• Pause briefly at the wide position and keep your ribs pulled down instead of letting the lower back arch.
• Pull the feet back together under control until they return to the starting plank width.
• Keep pressure evenly through both hands and avoid letting one shoulder collapse or drift forward.
• Breathe out as the feet slide apart and inhale as they come back together.
• Repeat for the planned number of reps, then step the feet in and lower out of the plank safely.

Tips & Tricks

• Use a smooth floor and towels that slide evenly; sticky carpet makes the movement jerky and harder to control.
• Keep your hands slightly ahead of the shoulders if the wrists feel overloaded, but do not let the chest sink between them.
• Make the jack smaller if your lower back starts to arch; a shorter slide is better than losing the plank.
• Think about pushing the floor away with both hands to keep your upper back active while the feet move.
• Keep the toes lightly on the towels rather than digging in hard, or the feet may catch and yank the hips side to side.
• Move at a steady tempo instead of snapping the feet open and closed; the trunk should look quiet from rep to rep.
• If the shoulders fatigue first, stop the set before the hips start piking or the head drops.
• Exhale during the out-sweep to help the ribs stay down and the core stay tight.
• Use this as a conditioning drill, not a sprint; once the plank shape breaks, the set is over.

Frequently Asked Questions

What does Plank Jack Slide With Towel train?

It trains core stability, shoulder endurance, and hip control while the feet slide out and back in a plank.

Why use towels instead of jumping the feet?

The towel slide removes impact and makes the trunk work harder to keep the body steady while the legs move.

Where should my hands be on this exercise?

Place your hands under your shoulders and keep your arms straight so the plank stays stable while the feet slide.

How wide should the feet slide apart?

Slide them only as wide as you can without arching your lower back or shifting your hips from side to side.

What muscles work the most?

The abs, glutes, shoulders, and inner thighs do most of the work, with the hips and upper back helping to stabilize.

Is this a good beginner exercise?

Yes, if you keep the slide small and the pace slow. Beginners should focus on holding a strong plank before trying faster reps.

What is the most common mistake?

Letting the hips bounce or twist while the feet slide is the most common breakdown in form.

How can I make the movement easier?

Shorten the slide, slow the tempo, or do fewer reps before fatigue changes your plank position.

How do I make it harder?

Increase the slide distance, slow the return, or hold the wide plank for a longer pause without losing body alignment.