Hi,
I have a membership with Physiotherapy NZ and am happy with their service. Although they are nauseatingly politically corrrect.
Physio Trust NZ, in my opinion, is highly focussed on musculoskeletal Physio and does not work in my personal interest. The membership numbers are very small (a fraction compared to PTNZ), although their ideals and initiatives are recommendable. I don't think they are internationally recognised, although they would like to be.
Even in New Zealand, they are not very well known as such and are mainly heard when opposing decisions of Physiotherapy NZ. To me they look like the little rebellious brother of a bigger society.
Which one is better if you work in MSk Physio? No idea, sorry.
I only know 1 person who is member and he is on one of their trustees.
Hope, you also get a reply from a Physio trust member.
Regards,Fyzzio