Swimmer
- Músculo objetivo
- —
- Equipamiento
- Body weight
- Parte del cuerpo
- Hips
- Tipo
- Strength
The Swimmer is a prone bodyweight exercise that alternately raises opposite arm and leg to engage the glutes, hip extensors, and lower back. Performed face-down on the floor, it mimics a flutter-kick swimming motion and is ideal for building posterior chain endurance, improving hip stability, and strengthening the muscles that support upright posture.
Cómo hacer el Swimmer
- 1Lie face-down on a mat with your legs straight and arms extended overhead, forehead lightly resting on the floor or hovering just above it.
- 2Engage your core by gently drawing your navel toward your spine, and squeeze your glutes to stabilize your hips before moving.
- 3Simultaneously lift your right arm and left leg a few inches off the floor, keeping both limbs straight.
- 4Hold the raised position for a brief pause, fully contracting the glutes and hip extensors on the working side.
- 5Lower your right arm and left leg back down in a controlled manner, returning to the starting position.
- 6Without resting, immediately raise your left arm and right leg to the same height, mirroring the first rep.
- 7Continue alternating sides in a smooth, rhythmic flutter motion, as if you were swimming freestyle.
- 8Complete the prescribed number of reps or time interval, then lower both limbs fully to finish the set.
Consejos de técnica
- Keep your gaze down toward the floor throughout — lifting your head strains the neck and can shift tension away from the target muscles.
- Move slowly and with control rather than momentum; a deliberate tempo maximizes glute and hip extensor activation.
- Focus on height quality over quantity — a few inches of clean lift with full extension is more effective than a large, sloppy range of motion.
- Breathe continuously: exhale as you raise the limbs, inhale as you lower them, to maintain core tension without holding your breath.
- Press the hip bones gently into the mat throughout the movement to prevent the pelvis from rocking side to side.
Errores comunes
- Raising the limbs too high by arching the lower back excessively — this compresses the lumbar spine and transfers stress away from the glutes and hip extensors, increasing injury risk.
- Letting the hips rock or rotate with each alternating rep — this indicates the core and glutes are not properly braced and reduces the stability challenge the exercise is meant to build.
- Bending the elbow or knee during the lift — soft limbs shorten the lever arm, reducing the load on the posterior chain and making the movement significantly easier than intended.
- Moving too fast with momentum — rapid, uncontrolled swinging minimizes time under tension for the hip extensors and turns the exercise into a coordination drill rather than a strength or endurance stimulus.
- Holding the breath — this spikes intra-abdominal pressure unnecessarily and causes the core to lose the stable, rhythmic tension needed to protect the lower back during repeated alternating lifts.
Preguntas frecuentes
What muscles does the Swimmer exercise work?
The Swimmer primarily targets the glutes and hip extensors — the muscles responsible for extending the hip and lifting the leg behind the body. The lower back muscles work isometrically to stabilize the spine, and the shoulder and upper back muscles engage to lift and hold the extended arm. Because no external load is used, the exercise emphasizes endurance and neuromuscular control across the entire posterior chain.
How is the Swimmer different from a Superman exercise?
The Superman lifts both arms and both legs simultaneously, creating a symmetrical spinal extension load. The Swimmer alternates opposite arm and leg, which adds a rotational stability challenge: the hips and core must resist the tendency to rotate or rock with each alternating rep. This makes the Swimmer slightly more demanding for core anti-rotation stability while keeping the spinal extension load lower per repetition.
How many reps or how long should I hold the Swimmer?
The Swimmer is commonly performed for time (20–45 seconds per set) rather than counted reps, since the alternating flutter motion pairs naturally with a rhythmic tempo. Beginners can start with 20-second sets and two to three rounds, while more advanced athletes can extend to 45–60 seconds. If counting reps, aim for 10–16 total (5–8 per side) with a slow, controlled tempo.
Is the Swimmer safe for people with lower back pain?
For many people, the Swimmer is used as a rehabilitation and prehabilitation exercise because it strengthens the glutes and hip extensors that support the lumbar spine without heavy loading. However, if you have an acute lower back injury or significant lumbar sensitivity, consult a healthcare professional before attempting it. The key is to keep the range of motion modest — lift only as high as you can without arching — and to stop immediately if you feel discomfort in the lower back rather than fatigue in the glutes.
Can the Swimmer be made harder without adding weights?
Yes. You can increase difficulty by slowing the tempo to a 3-second lift and 3-second lower cadence, by pausing for 2–3 seconds at the top of each rep, or by wearing light ankle weights and wrist weights. You can also extend the duration of each set. Focusing on maintaining absolutely still hips throughout is itself a significant challenge that many people underestimate when first attempting the exercise.
