The Primary Core™ and Secondary Core™ System Bundle
Most chronic pain approaches treat where it hurts. The Set targets where it starts — the complete Primary Core™ and Secondary Core™ systems, six keystone muscles, one sequence.
Created by a physical therapist, the Set targets the six keystone muscles most responsible for whole-body pain patterns — muscles that are too deep, too overlooked, or too hard to reach consistently with conventional care. When these muscles stay tight, pain travels: from the hips to the low back, from the neck to the jaw, from the shoulders to the head.
The Set works in sequence. Release the deep hip muscles with the Hip Hook and Orbit. Release the upper body tension drivers with the Range. Strengthen and stabilize with the Band. Understand the full picture with the book. Every tool has a specific job, and together they address what most approaches leave behind.
Hip Hook (Mark): The only tool clinically designed to target both the iliacus and psoas muscles (hip flexors)
Orbit: Eases you into the psoas and releases the back of the hip. Warm-up companion for the Hip Hook
Range: Relieves neck tension, headaches, and shoulder strain. Targets upper traps, suboccipitals, and pec minor
Band: Strengthens hips, glutes, and core after release. PT-approved exercise sequence included
Tight Hip, Twisted Core: The guidebook. Understand the science behind the method
Customer Support: Real physical therapists and movement specialists answer your questions
Complimentary Physio Consultation— Opt in for a complimentary 20-minute virtual consultation with our expert physiotherapists after your purchase.
The Aletha devices are designed for people who’ve already tried everything and still haven’t found lasting relief. If that sounds like you, there’s a strong chance muscle tension in your keystone muscles is the missing piece.
Six deep muscles (the iliacus, psoas, piriformis, upper trapezius, suboccipitals, and pec minor) drive pain patterns throughout the entire body. Most approaches can’t reach them, or can’t reach them often enough. The Set targets all six with a specific sequence: release the primary core (Hip Hook + Orbit), release the secondary core (Range), then strengthen to maintain (Band).
71% of participants experienced reduced muscle tension after just one 90-second session with the Hip Hook,* and 57% of customers reported pain relief.**
*In a randomized controlled trial of 25 participants with chronic lower back pain. Results may vary.
**Based on a survey of 377 Aletha customers. User-reported experiences. Results may vary.
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Proven Results
felt reduced muscle tension after one session
More than 7 out of 10 participants experienced a meaningful decrease in muscle tightness after releasing their iliacus and psoas muscles with the Hip Hook.
pain reduction in just 90 seconds
Participants experienced a 27% decrease in pain after using the Hip Hook for 90 seconds.
more effective than stretching alone
Participants using the Hip Hook consistently (3x/week) for 4 weeks experienced 19% less pain than others who only did stretching.
BETTER SLEEP IN 4 WEEKS
With consistent use 3x/week over four weeks, participants reported 29% longer sleep duration and improved sleep efficiency.
Results from a randomized controlled trial of participants with chronic low back pain (n=25). Individual results may vary
The Complete System
Five tools. One solution.
Every product targets the root cause — releasing the deep hip muscles no other tool can reach.
The Hip Hook (Mark)
The world's first and only tool designed to release both the iliacus and psoas muscles.
The Orbit
The ideal warm-up and companion to the Mark. Releases the other side of the hip.
The Range
Like having a skilled practitioner at your fingertips for your neck and shoulders.
The Band
Release first, then strengthen. The Band completes the sequence.
Tight Hip, Twisted Core
The bestselling book. The science behind the method.
