By JenesisDixon, Founder, POLISTIC+
There is an elephant in the room, and it is pedaling a stationary bicycle to nowhere.
I have been trying to find a polite way to say this for about a decade, and I have run out of polite ways, so here we are. NASA recently published a research summary on how astronauts exercise on the International Space Station, and after I read it, I had to walk outside, look at the sky, and have a small conversation with the moon about what we are doing up there.
We are taking our trash into space.
I do not mean the snack wrappers. I mean the entire 1990s gym, the treadmill, the stationary bike, the weight stack, bolted to the wall of the most expensive science laboratory ever built, used by some of the most highly trained human bodies on or off this planet. For 2 hours a day. Every day. For 6 months at a stretch. And it is still not enough.
Why outdoor cycling is not the villain
Before I go further, let me draw a line that matters. I am not anti bicycle. I love what a bike does as a utility, moving a body from point A to point B, replacing a car, getting children to school, the Dutch model of cycling as civic infrastructure. That is one conversation, and it is a good one.
This is a different conversation. This is the longevity conversation. This is the what does the body actually need over 6 months in microgravity conversation. And inside that conversation, the stationary bike is the wrong tool. Not because cycling is bad. Because cycling is a utility, and longevity in microgravity is a structural problem, and you do not solve a structural problem with a utility.
What NASA’s own data shows
The current ISS exercise stack is three machines. The Advanced Resistive Exercise Device, called ARED, which mimics weightlifting with a piston and flywheel. The T2 treadmill. And the Cycle Ergometer with Vibration Isolation and Stabilization System, affectionately known as CEVIS. That last one is, yes, a stationary bike. In space.
To be clear, the engineers building this equipment are excellent. The stationary bike on the ISS is a precisely calibrated piece of aerospace hardware, refined over two decades, with vibration isolation systems and electronic load control that make it more sophisticated than any commercial cycle on Earth. That is not the problem. The problem is that we kept asking better engineers to build us a better version of the wrong thing.
Astronauts train on this stack for about 2 hours per day. And in NASA’s own words, a study using CEVIS data concluded that up to 17% of astronauts could still experience loss of muscle performance, bone health, and cardiorespiratory fitness if future missions continue to use current exercise countermeasures. The researchers note that this highlights the need to refine current regimens, add other interventions, or enhance preflight conditioning.
Translation, the equipment is not getting the job done, and the people who designed it know.
Outdoor cycling is a real activity. It is balancing. It is steering. It is reading terrain. It is shifting weight through the hips. It is loading the spine in subtle rotation and lateral flexion every time it corrects course. The nervous system is engaged. The proprioceptive system is alive. There is wind, sun, varied effort, recovery. That is movement.
A stationary bike strips all of that out and leaves you with one thing, the pedal stroke, on repeat, for an hour, in a fixed posture.
The pedal stroke problem
And the pedal stroke, in isolation, has consequences. Brian Schiff, a physical therapist who works specifically with cyclists, puts it plainly. Most of us already sit at a computer for extended periods, and that prolonged posture lends itself to adaptive shortening of the hip flexor musculature. Adding high mileage on the bike week after week, he writes, compounds the issue of diminished soft tissue extensibility. The muscles most affected are the rectus femoris, the psoas major, and the iliacus. The psoas, he points out, is active when the hip is flexed more than 90 degrees, which cycling achieves many times throughout the ride.
Stuart McGill’s EMG research went further and quantified it. Psoas activation hits 14% of maximum voluntary contraction during the upstroke of normal cycling, climbs to approximately 30% during flexed posture cycling, and approaches 60% during sprinting. All of it in a shortened, concentric pattern, never reaching full extension.
A study of 121 road cyclists found restricted hip flexion, knee flexion, and ankle dorsiflexion on both sides, from repetitive pedalling alone. And those were people getting the outdoor benefits, the balance, the steering, the terrain. Strip those away and pin the body to a stationary bolt on bike, and you are left with the pure biomechanical residue. Cycling, in that isolated form, locks the muscles into a concentric only pattern for every pedal stroke. Hip flexors shorten without ever lengthening. Hamstrings contract without reaching full hip extension. The lower back holds a rounded position under bodyweight for the entire ride. There is no eccentric phase built in to counteract any of this.
The downstream pattern is well documented. A tight psoas pulls the lumbar vertebrae forward, creating an exaggerated curve in the lower back. The pelvis tips into anterior tilt. The glutes, the strongest hip extensors in the body, get inhibited and stop firing efficiently. The body compensates by over relying on the lower back muscles. And the visible signature, the one I notice every time I drive through town, is what cycling rehab specialists describe directly as rounded shoulders, a protruding stomach, and weakened glutes and core muscles.
That is not aesthetic shaming. That is anatomy.
So when I look at the marketing of indoor cycling, the transformation promise, the ripped instructor, the glow of the screen at 5am, I want to gently point out that the ripped instructor is ripped despite the modality, not because of it. She is doing pilates and lifting and probably eating 1,400 calories. The bike is not the hero of that body. The bike is, at best, a cardiac stimulus.
Now remove gravity
Take everything I just described, the shortened psoas, the silenced glutes, the rounded thoracic spine, the inhibited deep stabilizers, and remove gravity. The one force that was at least asking the body to organize itself against something is gone. The astronaut is now floating in the same flexed posture the desk worker and the spin class regular spend their lives in, with no gravitational signal telling the spine to stack.
This is why ISS astronauts come home with herniated discs at 4.3 times the civilian rate. This is why bone loss in microgravity runs 1 to 2% per month, with documented losses of up to 20% of bone mass after a 6 month mission. This is why the lumbar paraspinal muscles, the deep spinal stabilizers, atrophy measurably across a mission. The current exercise stack is not addressing the deep spinal stabilizers. It is asking the same superficial movers, the quads, the calves, the hip flexors, to keep firing in the same shortened patterns they were firing in on Earth, only now without gravity to push back.
We sent the problem into orbit and put a treadmill under it.
What the Yoga Pole does differently
A Yoga Pole loads the spine axially, in traction, in rotation, in extension, in lateral flexion, and in flexion. Every plane the spine is designed to move through. The 52 ground based poses in the POLISTIC+ methodology specifically train the deep spinal stabilizers, the multifidus, the rotatores, the pelvic floor, the hip extensors that cycling silences, and the fascia that no machine on the ISS currently addresses.
The Yoga Pole trains posture as a functional relationship inside the body instead of treating posture like a separate corrective exercise people think about after years of dysfunction have already accumulated.
Polistic trains the spine, stabilizers, fascia, breath, and nervous system together because the structure of the body affects everything downstream. When the spine begins organizing differently, breathing changes. Stabilization changes. Coordination changes. Even the nervous system changes.
You can physically feel the spine reorganizing itself during poses like T Pose, Reverse Fold, Full Moon, and Reverse Star. Those positions create decompression, length, orientation, and support through the body in a way most conventional exercise systems completely miss.
After years of watching people move, I have realized how adapted humans have become to compressed environments. Rounded shoulders, forward head posture, shallow breathing, tight hips, collapsed movement patterns. The body adapts to whatever environment it spends the most time inside, and most modern environments are literally training compression into the body every day.
Polistic changes that relationship by giving the body a vertical axis to organize around again.
What makes the methodology especially interesting is how much can happen using one simple vertical tool. The Yoga Pole has a very small footprint, which immediately caught my attention when I started reading NASA’s published goals for future exercise systems because they are specifically looking for equipment that takes up less space while combining multiple forms of training together. The Polistic system already does that naturally because mobility, posture, stabilization, decompression, coordination, cardiovascular conditioning, and strength training can all happen within the same methodology.
You can also add wrist and ankle weights directly into the movements for progressive strength training without needing entirely separate machines or giant equipment systems. The resistance integrates directly into the poses themselves, which means the body is building strength while still maintaining orientation, stabilization, and spinal organization instead of isolating muscles away from the structural system they are supposed to support.
Two people can also use the pole together at the same time, which becomes important when space, equipment access, and time are shared resources. Partner stabilization, coordinated movement, resistance, mobility work, and conditioning can all happen simultaneously using one system instead of requiring multiple exercise stations. In environments where efficiency matters, that changes the equation dramatically.
When I took Polistic underwater
One experience completely changed how I understood the Polistic methodology.
I practiced Polistic underwater and the moment I brought the movements into the water, I could feel the difference immediately because water changes the body’s relationship to gravity. NASA already understands this, which is why astronauts train underwater before spacewalks.
What surprised me was how naturally the methodology still translated.
The spine still organized itself around the pole. The stabilizers still activated. The body still found orientation. T Pose, Reverse Fold, Full Moon, Reverse Star, Center Pose… the same poses that decompress and reorganize the spine on land still created structure in the water too.
That was the moment something clicked for me.
The Yoga Pole stopped functioning like a gravity tool and started functioning more like an axis. The body was still searching for orientation even when gravity behaved differently, and the pole still gave it something stable to organize around.
That realization shifted the way I understood the entire methodology because most exercise systems depend heavily on gravity for resistance and organization. Remove gravity and much of conventional exercise loses its organizing principle. Polistic works differently because the organizing principle is the axis itself. The body still wants orientation. The spine still wants organization. The nervous system still wants structural reference points it can stabilize around.
The Yoga Pole gives the body that relationship whether gravity is fully present or partially reduced.
The questions NASA is asking
That is why I keep coming back to NASA’s exercise research because the questions they are asking are the same questions I keep answering.
How do you create full body conditioning in a small space? How do you combine mobility, stabilization, posture, decompression, cardiovascular conditioning, and strength into one integrated system? How do you support spinal health when the body loses its normal relationship to gravity? How do you create efficient movement systems without filling environments with massive equipment?
Those are the exact problems Polistic has been solving for years.
And that is why I genuinely believe this conversation is worth having.
The brief NASA wrote for the next generation of space exercise equipment is, almost word for word, the brief POLISTIC+ has been answering for 18 years.
So here is what I want to say to whoever at NASA reads research papers on exercise countermeasures for long duration spaceflight.
Hi. I think we should talk.
The math is the math. Your astronauts are coming home with herniated discs at 4.3 times the civilian rate. You are explicitly asking for one device, shorter workouts, higher intensity, smaller footprint, aerobic and resistance combined. The thing you are describing already exists. It just does not look like a piece of NASA hardware. It looks like a vertical pole and a 52 pose methodology that has been quietly maturing while everyone else was busy compacting the problem into orbit.
Bring your bike to the trail. Leave the stationary version on Earth.
The Moon deserves better. Mars deserves better. The astronauts who are going to spend 2 years of their life in a tin can to get us there deserve better than the same equipment that is breaking bodies in office parks in Cleveland.
Let’s make the future better together.
Namaste at The Pole,
Jenesis Dixon; Founder Polistic Yoga