Knee Stretches — Knees Off: A Complete Guide
Also called Knee Stretches Round — Knees Off
Quick Intro
Knee Stretches — Knees Off is a reformer Pilates exercise that begins in the round-back kneeling position, then lifts the knees about two centimetres off the carriage before pressing out and returning while maintaining that hover throughout. The inability to rest on the knees for support increases the demand on the deep core and hip flexors compared to the standard kneeling version.
Equipment Needed
A Pilates Reformer is required, since the kneeling hover and the spring-loaded carriage are the mechanism being trained. The hands and feet are the only points of contact once the knees lift.
Why It Matters
Maintaining the hover through repeated presses takes staying power, and pressing the carriage while balancing on that hover asks for coordinated control. The deep core muscle that wraps around the torso like a corset (transverse abdominis) and the deep hip flexor (hip flexors, iliopsoas) work continuously to keep the knees hovering, and the abdominal muscles running down the front of the stomach (rectus abdominis) help hold the rounded spine. The lower back muscles (erector spinae) control the length of the spine through the hold, and the front of the thigh (quadriceps, rectus femoris) assists as the knees press the carriage out.
When to Do It
Knee Stretches — Knees Off works well once the standard kneeling rounded-spine press feels steady, added as the next step in the reformer’s kneeling work. Two to three sessions a week is a reasonable pace for building this hovering pattern.
Anyone with a current knee, hip or wrist issue should get individual guidance before adding this exercise, since sustaining the hover places ongoing demand on the hips and the hands supporting the position.
Getting Ready
A few reps of the standard kneeling press warm up the rounded-spine pattern before the knees are lifted. Kneeling on the carriage and hovering the knees just an inch for a few seconds, without pressing yet, previews the hold this exercise depends on.
Step-by-Step Instructions
1. The setup. Kneel on the carriage in the round-back position, hands on the foot bar, then lift the knees about two centimetres off the carriage.
2. The press. Press the carriage out by extending the hips back, maintaining the knee hover throughout.
3. The return. Return the carriage under control, keeping the knees hovering the whole time.
4. The repeat. Continue pressing out and returning for the working set without letting the knees rest down between reps.
How Many, How Often
Knee Stretches — Knees Off is dosed by reps, with each full press-out-and-return counting as one.
| Level | Where you’re at | What to do |
|---|---|---|
| Beginner | New to sustaining the knee hover | 2 sets of 4 to 6 reps |
| Intermediate | The hover holds steady through a full set of presses | 2 to 3 sets of 6 to 8 reps |
| Advanced | Comfortable holding the hover under a working spring load | 3 sets of 8 to 10 reps |
The knees staying lifted between every rep matters more here than how many reps get completed, since letting the knees rest down even briefly removes the continuous demand this exercise is built around.
Modifications and Variations
As an easier version, Knee Stretches — Round Back rests the knees on the carriage, removing the continuous hovering demand while the rounded-spine press is learned.
As a harder version, Knees Off — Slower Tempo performs the same hovering press at a deliberately slower pace, removing momentum and forcing the hip flexors and core to sustain the hold for considerably longer per rep.
Common Mistakes to Avoid
Letting the knees touch down between reps. Resting the knees on the carriage even briefly between presses removes the continuous demand this exercise depends on. Keeping the hover unbroken from the first rep to the last is the whole point of lifting the knees in the first place.
Losing the rounded spine as fatigue sets in. Allowing the C-curve to flatten out once the hovering hold starts to feel heavy trades away the shape this exercise is meant to hold onto. Ending the set a rep early, with the curve intact, beats grinding out extra reps with a flattening spine.
Loading too much weight through the wrists. Letting the hands bear more of the body’s weight than the hovering hips and core are meant to means the wrists end up doing work the deep core should be doing. Distributing the weight through a steady, engaged core protects the wrists.
After Your Set
Sitting back into a child’s pose style stretch, hips toward the heels, releases the hip flexors and low back after the sustained hover. A gentle wrist stretch, pressing the palm flat and leaning back slightly, eases out the wrists that supported the position.
Going Deeper
This version follows once the standard kneeling press feels steady, since removing the resting point between reps turns an already demanding hold into a test of continuous hip-flexor and core endurance. As the set goes on, the knees tend to drift down toward the carriage well before the press feels weak. Ending a set the moment the hover breaks, even if that means fewer total reps, builds the continuous hold faster than pushing through with the knees dipping between presses.
Someone new to this exercise generally sustains the hover for a handful of reps within a few sessions, then works toward a fuller working set over two to three weeks.
How to Know You’re Improving
- Knees that stay hovering, never touching down, from the first rep to the last
- A rounded C-curve that holds steady even as the hover starts to fatigue
- Hands that bear less weight as the hovering hips and core take on more of the hold
- A hovering set that feels ready to add spring resistance or move toward the slower-tempo progression
Knees that stay off the carriage for the whole set matter more than how many reps get completed.
Muscles Worked
- Transverse Abdominis (a deep core muscle that wraps around the torso like a corset, keeping the knees hovering)
- Iliopsoas (the deep hip flexor, working continuously to keep the knees hovering)
- Rectus Abdominis (the abdominal muscles running down the front of the stomach, helping hold the rounded spine)
- Erector Spinae (the lower back muscles, controlling the length of the spine through the hold)
- Rectus Femoris (one of the quadriceps at the front of the thigh, assisting as the knees press the carriage out)
FAQ
Why does lifting the knees just a small amount make this so much harder? Removing the resting point the knees normally have on the carriage forces the hip flexors and deep core to hold the position continuously through every rep, instead of getting a brief reset between presses the way the standard version allows.
What changes from the standard Knee Stretches? It’s the same rounded-spine kneeling pattern as Knee Stretches — Round Back with the knees lifted off the carriage.
Is some hip flexor or ab fatigue after this exercise normal? Yes, fatigue through the deep hip flexors and abdominals after a full set is expected, often more intensely than the standard kneeling version. Sharp pain at the knees or wrists is different, and worth pausing the set to check with a doctor or physical therapist if it keeps happening.
Does the standard kneeling press need to be steady before trying this one? Yes, a steady rounded-spine press with the knees resting comes first, since the hovering version only adds value once that base pattern is in place.
How often should the knees-off version be practiced? Two to three times a week, once the standard kneeling press feels steady, suits most people building toward this hovering progression.
Related to Knee Stretches — Round Back as the easier version performed with the knees resting on the carriage and Knees Off — Slower Tempo as the harder version performed at a deliberately slower pace.