Milestone map
3 milestones
Measure Flexibility Baseline in Two Tests
Single session for both baseline tests (20 min including brief rest between tests)
Flexibility is range of motion in the muscles and connective tissues — the passive ability to lengthen. Measuring it requires a test you can perform consistently and repeat at Week 8 under the same conditions. Complete two tests in a single session before beginning any stretching programme: (1) Sit-and-reach — sit on the floor with legs extended flat, use a ruler taped along the floor with the zero point at your feet, reach forward and record the furthest point reached in centimetres (positive if past feet, negative if short); (2) Shoulder reach-behind — standing, try to clasp your hands behind your back with one hand reaching up from below and the other reaching down from above, measuring the gap between fingertips in centimetres (or overlap). Record both arms. These two tests cover the body's most important flexibility planes for daily life.
Proof required
Submit your baseline results from both tests performed on the same date before any flexibility training begins: sit-and-reach distance in centimetres, and shoulder reach-behind gap or overlap in centimetres for both arms. Include photos of the test setup (ruler on floor for sit-and-reach, photo of shoulder position) so M3 can use the same setup.
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Eight Weeks of Consistent Stretching Programme
8 weeks (4+ sessions of 20–45 min per week + bi-weekly re-tests at Weeks 2, 4, 6)
Flexibility improves through consistent static stretching held for at least 30 seconds per muscle group, performed at least four days per week. For the next eight weeks, follow a structured flexibility programme — yoga, dedicated stretching sessions, or a combined programme — and log every session. At Weeks 2, 4, and 6, repeat both baseline tests under the same conditions (before warm-up, same ruler setup) and record the results. The bi-weekly tests are what show whether the programme is producing measurable change rather than just making you feel more flexible.
Proof required
Submit your 8-week session log with at least 32 entries (4+ sessions per week), each with date, programme or session name, and duration. Include bi-weekly re-test results for both tests at Weeks 2, 4, and 6 (minimum) showing the centimetre measurements from the same setup as M1.
What gets checked
Common mistakes
Powstik Guide
An eight-week stretching log with 32+ sessions.
Steps
Template
| Week | Date | Routine | Minutes | Note | |------|------|---------|---------|------|
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Final Test Comparison and Attestation
Single re-test session (same duration as M1) after Week 8 of the programme
The proof of improved flexibility is a final measurement in both tests that is better than M1, taken under the same conditions — before any warm-up, using the same ruler setup and same measurement positions documented in M1 photos. Alongside the test results, provide a written attestation from one named person who observed your practice sessions — a yoga instructor, training partner, or housemate who witnessed you stretching consistently.
Proof required
Submit (1) your M3 final test results for both tests (sit-and-reach in cm, shoulder reach-behind in cm for both arms), taken before any warm-up, using the same setup as M1; (2) a before-and-after comparison table showing M1 and M3 results for both tests; (3) a photo of the M3 sit-and-reach setup showing the ruler in the same position as the M1 photo; (4) a written attestation from a named person who observed your flexibility practice.
What gets checked
Common mistakes
Powstik Guide
Final flexibility readings compared with your baseline.
Steps
Template
| Measure | Baseline | Final | Change | |---------|----------|-------|--------| | Sit-and-reach (cm) | | | | | Shoulder reach, left (cm) | | | | | Shoulder reach, right (cm) | | | | Method and time of day: What I changed:
What gets sent back
Resources
Foundationstart here
What a verifier looks for
You'll sign in first, then come straight back here.