I warmly support joining International Concertina Association as being one of its most durable members alive... after 39 years... I am slowly catching up with the average age of members when I was associated..but the organisation is much younger nowadays...

Staying alive playing concertina, particularly in public, however is an art in itself and keeping physically fit is essential. One exercise that all concertina players ought to practise daily is shown here

https://www.youtube.com/watch?v=q01G-mLDdnk&list=RDq01G-mLDdnk&start_radio=1