The J17 Performance Index™ — baseline, plan, retest.
The J17 Performance Index™ is an assessment and retest system used with every J17 Fitness member, benchmarking movement, strength and mobility at intake and on a set schedule afterwards.
Before anything else, we find out how you move and where you’re starting from. You leave with a plan for the week — not a printout.
How the Performance Index™ works.
- Baseline. Movement, strength and mobility, assessed by a coach. About an hour.
- Your week. A plan for what to do, when, and how hard — classes, floor time, recovery.
- Train. The plan adjusts as things change. It’s supposed to.
- Retest. On a schedule. You see what moved and what didn’t, and a coach explains why.
Why measured progress matters.
Most people train for months without knowing whether it worked. Feeling better is real, but it’s slow and it’s easy to doubt.
The Index gives you the other half: something you can look at.
Who uses the Performance Index™.
Every member, from day one. Personal training clients. Young athletes, and their parents. Same system, same numbers.
What you get at every retest.
Your numbers, at intake and at every retest, and a coach who can tell you what they mean.
If you want them somewhere else — a sport coach, a physio — they’re yours to take.
Performance Index™ questions.
How long does the assessment take?
About an hour, with a coach.
Do I get the results?
Yes. The numbers are yours at intake and at every retest, and you can pass them to a sport coach or physio.
Is the assessment included?
Yes. Every membership starts with a Performance Index™ baseline.
