who only by moving can balance

Years and years late and may not be seen, but is part of the record. I find that there is still a need to stretch but a different range of motion, so some of the traditional stretches don't work and I might need more tools or a person to avoid injuries elsewhere. I've also found it's the same with strengthening, using my own body as resistance is a bad idea, mostly that means either pilates reformer or a physio providing the resistance.