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Core Progression: Build Stability With Movement

by goldsgym

In the second part of our core workout series, you practiced stabilizing your body by holding five positions. Gold’s Gym Fitness Expert Adam Friedman says that in this stage of the progression, you should begin to notice that you’re feeling stronger in other movements.

“The work you’re doing transfers to overall strength,” Friedman says. “Squats, running … anything. You should see it in other areas of your workouts.”

This third part of the series builds on that strength and stabilization by incorporating motion.

Back to your foundation

Before advancing, Friedman says reassess the foundational core moves.

“Some people challenge themselves too quickly and the body tries to make it easier by breaking proper posture,” he says. “If you go back and do the fundamentals well — controlled activation of muscles and breathing — then, great. If you find you’ve lost some of that, spend a little time progressing on them again.

“Start from the beginning, and then work your way up through the levels to the most advanced. You’ll stay focused on where you’re creating tension instead of trying to force it.”

Advanced exercises

Review each position in the previous installment, Core Progression: Build Endurance, before adding the movements described below.

1. Core brace march

This is a variation of the core brace detailed in the second installment of this series. Hold the brace with your hands under your lower back. Maintain equal pressure while lifting one bent knee 90 degrees, then lowering it and lifting the other.

“You’re combining everything,” Friedman says. “You want to be able to breathe, sustain equal pressure and ‘march’ at the same time — without any rotation in the hips or involvement with the upper body.”

The goal: Do 30 reps (15 on each leg). Start with 10 reps on each leg and progress as you’re able.

2. Bridge march

This is a variation of the core bridge from the second installment. Apply the same alternating 90-degree knee raises as above, keeping the hips from rotating from side to side while maintaining the pelvic tilt.

A more advanced bridge can be used as a variation to the alternating march: the single leg bridge hold, with the knee in that 90-degree lift.

The goal: Do 30 reps (15 on each leg). Start with 10 reps on each leg and progress as you’re able. For the single leg bridge hold, start by holding the position for 20 seconds on each side and work up to 30 seconds.

3. Hip circles

Begin on your hands and knees. Trying to keep your knee facing the floor, circle one knee clockwise three times and counterclockwise three times, with the back of the opposite hand resting on the small of your back. Then switch sides.

“That hand gives you feedback on your back’s movement,” Friedman says. “You want to do the knee circles without feeling any rotation or shifting in your lower back.”

The point is to isolate the movement so that just your hips are doing the work. At first, this may limit the range of motion of your knees. Don’t force it; circle only as wide as you are able before the body tries to make it easier by breaking proper posture or involving your back to help widen the circles.

The goal: Do 3 reps in each direction, on each side, at full range of motion.

4. Moving plank

There are three variations of movement to do from a plank position, all of which Friedman says are harder than they appear:

  • Shift the hips from side to side without rotating.
  • Rotate the hips, tilting each side toward the ground without moving the feet, shoulders and head. Pause in the center between each tilt.
  • Alternate leg raises, lifting each off the ground without moving any other part of the body.

If you have access to a stability ball, another advanced variation is to hold a plank position with your forearms on the ball instead of the ground. The unstable surface automatically challenges core strength.

“Use your forearms to make circles on the ball, like you’re churning butter, holding that position,” Friedman says. “It’s definitely one of the better core movements that is on this next level.”

The goal: Do 15 reps of each move on each side. Begin with 10 reps and work your way up. Then, if you’re able, change to a straight-arm plank position (on your hands instead of your forearms) and work up to the 15 reps. The straight arm position automatically requires more stability from the core.

5. Moving side plank

As with the moving plank, a moving side plank has a couple of options:

  • With the upper body braced, isolate the hips by lowering them to the floor and then raising them back up.
  • Pull the knee of the top leg forward at 90 degrees and hold.

The goal: Do 15 reps of the hip raises on each side; start with 10 and work your way up. Hold the knee at 90 degrees for 20 seconds on each side; progress up to 30 seconds. Then, if you’re able, try doing these moves in a straight-arm position.


Previous workouts in this core series:

Core Progression: Build Your Foundation

Core Progression: Build Endurance



What started out in 1965 as a small gym in Venice Beach, California has since become the most well-known and traditional fitness company in the world – Gold’s Gym. Over the last 55 years, Gold’s Gym has developed into a global brand with over 600 locations spanning 6 continents. Bodybuilding greats such as Arnold Schwarzenegger, Lou Ferrigno and Franco Columbu worked out at the original Gold’s Gym, which went on to become the most legendary gym in the world. In the fitness industry, the brand enjoys cult status and universal appeal with 96% aided brand awareness. In 2020, the RSG Group acquired Gold’s Gym and integrated the brand into its portfolio, making it the global leader in the fitness sector.

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