Intermediate

Pilates Swimming

A cornerstone extension exercise that trains the whole posterior chain to work as a coordinated unit. Holding the chest and thighs off the mat lights up the erectors and glutes isometrically, while the alternating flutter adds a cross-body challenge that mirrors real locomotion. It builds the extensor endurance that counters a day spent flexed forward.

Equipment
Body Weight
Body part
Back, Glutes
Type
Functional, Pilates, Strength
Browse by movement
Hinge
Muscles worked
Target
Erector Spinae, Gluteus Maximus
Secondary
Biceps Femoris, Semitendinosus, Deltoid Posterior
Tertiary
Trapezius Lower, Trapezius Middle

How to do it

  1. 1

    Lie face down with arms reaching overhead and legs extended long behind you.

  2. 2

    Draw the navel up off the mat and lengthen the spine, then lift the arms, chest, and legs.

  3. 3

    Begin a small, quick flutter, raising the right arm and left leg, then the left arm and right leg.

  4. 4

    Breathe steadily, inhaling for a count of five kicks and exhaling for five.

  5. 5

    Keep the neck long and the gaze down so the back of the neck stays in line with the spine.

  6. 6

    Lower everything with control to finish.

Tips

  • Reach the limbs long away from the center rather than lifting them high; length protects the low back.
  • Keep the flutter small and steady; avoid slapping the mat or overarching.
  • Anchor the pubic bone and lower belly into the mat to keep the lumbar spine safe.

Variations

Common mistakes

  • The head lifts to look forward instead of staying down, taking the neck out of line with the long spine the rest of the body is holding.
  • Holding the breath through the fast flutter instead of matching the five-count inhale and exhale turns a rhythmic drill into a tense scramble.
  • One side pumps harder than the other, usually the dominant arm and leg, so the trunk rotates slightly with every beat instead of staying square.
  • As the set goes on, the flutter starts fast and then fades, rather than holding one steady rhythm through the whole breath cycle.
  • The shoulders bunch up toward the ears as the arms and legs work, adding upper-trap tension that has nothing to do with the extensors doing the lifting.

Frequently asked

How many reps of Pilates swimming should someone new to it do?
Start with 2 rounds of 10 counted breaths, 5 kicks in and 5 kicks out, resting between rounds. Once the flutter stays small and steady and the low back stays anchored for both rounds, build toward 3 rounds before you try to hold the lifted position longer or add more breath cycles per round.
How do you make Pilates swimming easier or harder?
To make it easier, keep the flutter smaller and lift the chest and legs only a few inches off the mat. To make it harder, lift a little higher while keeping the flutter just as small and controlled, or extend the breath count to eight kicks in and eight out.
What is Pilates swimming good for, and when is it not the right choice?
It builds extensor endurance through the whole back and glutes while training cross-body coordination, which makes it useful for anyone who sits and rounds forward most of the day. It is a poor choice during an acute low-back flare, since sustained extension under a flutter can aggravate a back that is already irritated.

Related exercises

Other movements among FitRay's 2,000+ exercises that load the same target muscle — same equipment and level first.

All Back exercises