Now live · launched 7 October
The 30-Day Psoas Reset Protocol
The Muscle of the Soul
Thirty days on the mat with yin, breath and tremor. Your psoas may feel it is safe to let go — even when tight hips, a low back or a breath that will not go deep is the way in.
In the package: the handbook, the iPhone app with a unique breath timer, guided video lessons filmed outdoors, and one hour of online coaching with Tessa or Johannes at 50% off, via a unique discount voucher included with the package.
By Johannes Huijbregts & Tessa Frunt.
Now live. After payment we send the fulfilment email with PDF, app code and session voucher.
Until the price becomes €29.95
Launch price until 18 November 2026 at 23:59 (Amsterdam).
YouTube · explainer
How the protocol works
This video explains the Psoas Reset Protocol in a few clear steps: what it is, how it works and how it is built, with visuals from the interactive PDF and a preview of the app.
Table of contents
Preview
The app — preview
Same purchase, via the same email address. Includes a unique breath timer in the app.
What you'll get
What's in the complete package
30 sequential days
Not a random stretch library. Each day unlocks the next: land, yin, breath, sometimes tremble, and always a short note. There is a tracker to fill in — in the book and in the app.
Tessa’s pose atlas
Constructive Rest, the yin line and TRE rest positions, photographed and described in detail.
Breath as the second door
The psoas meets your diaphragm. Deep belly breathing is not a trick; it is your nervous system relaxing — visually and physically. This principle is explained in detail in the book.
1:1 session voucher
One hour online with Tessa (yin + breath + coaching) or Johannes (breath + coaching). Normally €60, €30 with the voucher. Six weeks from delivery, not from checkout. Unique code only in the fulfilment email.
Psoas Reset app (iPhone)
Same purchase, via the same email address. Includes a unique breath timer in the app.
Guided video lessons
Guided video lessons are in the app and in the interactive PDF (natural recordings, not a studio, filmed in real life in a natural area).
Who it's for
When it's tight — the signals
How do you recognise a tight psoas? Eight signals:
- 1Low-back pain that eases when lying on your back
- 2Pain or stiffness in the hip when getting up
- 3A pelvis that tilts forward (a forward-leaning posture)
- 4Difficulty bringing the knees toward the chest
- 5A tight feeling in the groin
- 6Pain radiating to the front of the thigh
- 7Breathing that feels “high” or shallow
- 8Restless legs, as if they need to do something
Recognise any of this? Then chances are your psoas is speaking. Not as an enemy, as a messenger. It says: there is tension here that does not belong.
Recognise yourself? Start the thirty days.
Who it's for
- Chronic tension, tight hips, breath that will not go deep
- Anyone who wants thirty days of practice on the mat — five minutes counts
- Anyone who takes feeling-before-it-heals seriously, without a performance piece
Not for whom
- Acute pain, a hernia or recent surgery — see a doctor first
- Anyone looking for medical treatment or trauma therapy; this is not a substitute
- Anyone expecting a “released” psoas after one session
The muscle
What is the psoas — and iliopsoas?
Psoas major is a deep hip flexor: from the lumbar spine to the thigh. Together with iliacus that is iliopsoas. It flexes the hip, holds you in sitting, and sits against the diaphragm. That is why breath and hips meet.
A day of sitting often keeps that line short. That can feel like tight hips, breath that will not go deep, a lower back that complains. This handbook is thirty days of practice.
Session voucher
What the 1:1 voucher exactly includes
The strongest extra in the package: one live hour, online, with Tessa or Johannes. Not a group. Not a video instead of a person. One real session, at 50% off.
€30 instead of €60
50% off one hour 1:1. Normal rate €60.
60 min · online
Video, from your home. With Tessa or Johannes — you choose.
6 weeks from delivery
The clock starts when the voucher arrives in the fulfilment email — not at checkout.
Yin + breath + coaching
On the mat: yin, breath and a conversation in the here-and-now. Fits when the body is the door — poses, psoas, making space, then talking.
Breath + coaching
Connected breathing and coaching. Fits when tension, overthinking or staying ‘on’ is the door — breath opens, coaching helps land.
Order
How it works
- 01
Name + email
That locks your order.
- 02
Payment link in email
Johannes sends the link. No checkout on this page.
- 03
Fulfilment email after payment
PDF, app code and session voucher follow once payment is in. Now live.
Written by
Johannes & Tessa
Co-author · yin & atlas
Tessa FruntYin Yoga Teacher & ing. Movement Technologist
Yin/Hatha/Vinyasa · ing. HBO Movement Technology · MRC Doorn · Adem en Stem · YinYoga.com
Co-author · breath & protocol
Johannes HuijbregtsBreath Coach & Transformation Coach
Navy · Transformation coach 2016 · Breath coach 2021 · 1:1 €60
Reviews
How people experience our work
“For a while I had 1-on-1 coaching with Tessa. What I really appreciated is that she always lets you think for yourself about the answers and is never judgmental or pushy. She mainly explores together with you what fits and resonates with who you are. There's no digging into the past or dwelling on the stories around it, but mainly focusing on the here and now. What helps you, what is happening... She is calm, radiates safety and trust, and never makes you feel 'different'. Because of this you come closer and closer to your own core. She also gives clear tips and you don't leave with a full head. She knows exactly when to reframe or ask follow-up questions, and hits the nail on the head in a loving way. In short, I felt incredibly supported and in the right place to grow!”
“Tessa truly has a unique coaching style. She knows how to bring you back to the here and now with great attention, and let you feel through what is going on inside you. She truly embodies what she also shares in her coaching 🙏🏼”
“Unfolding. That word covers what Tessa's lessons mean to me. For years I've followed her online, and in all that time I've slowly untangled things that had settled deep inside me: emotions, thoughts, beliefs I didn't even know I carried. It's a path from unconscious to awareness. Sometimes gentle, sometimes painfully honest. But always real. Tessa guides that process with a calm that gives you trust. She forces nothing, but invites. And in the silence of a yin pose, sometimes more happens than just talking. For anyone ready to unfold a little: I highly recommend Tessa.”
“Lovely, kind people. They listen well and are honest even when it's not what you want to hear.”
What is The 30-Day Psoas Reset Protocol?
The 30-Day Psoas Reset Protocol is an Interactive PDF + App by Johannes Huijbregts and Tessa Frunt of Spiriators. URL: https://spiriators.com/en/ebook/psoas-reset. Launch price €14.95 until 18 November 2026, then €29.95 one-time. (1:1 coaching voucher €60→€30, 6 weeks from delivery date via coupon in the fulfilment email).
Good to know
Sources & scientific authority
Iliopsoas anatomy (psoas + iliacus), open handbook: Bordoni & Varacallo — StatPearls / NCBI Bookshelf (NBK531508).
Psoas major, lumbar spine and clinical context (not a DIY diagnosis): Sajko & Takahashi (2009) — Journal of Orthopaedic & Sports Physical Therapy / PubMed.
Hip flexor, sitting posture and low back — review literature: PubMed-cluster “iliopsoas” + “hip flexor posture”.
Fascia and long-held static stretch (basis of yin poses): Schleip & Müller (2013) — Journal of Bodywork and Movement Therapies.
Yin, fascia and what the body “tells” — read carefully, no trauma claim: Tozzi (2014) — Journal of Bodywork and Movement Therapies / PubMed.
Slow breathing and the autonomic nervous system (breath–diaphragm bridge): Zaccaro et al. (2018) — Frontiers in Human Neuroscience.
Sources support anatomy, fascia, posture and breath. They do not prove that “the psoas stores trauma” or that this protocol cures a condition.
Read on
Other doors, the same practice
Free handbook
Free vagus handbook — the neurological door
1:1
Yin yoga 1:1 with Tessa
Platform course
Yin for the Whole Back
Blog
Iliopsoas, emotions, hips
Blog
Psoas and the vagus nerve: the bridge
Session voucher
Breathwork 1:1 — redeem the voucher with Johannes
€79
Course platform €79 — this handbook is not in it
Thirty days. One line.
Now live · €14.95. Johannes emails the payment link. After payment comes the fulfilment email with PDF, app code and session voucher.