Have any Dupuytren sufferers received any advice or had any significant experience about the potential effect of continuing to play impact (hand) sports such as tennis or golf?

I am sure that you are right however the question is directed at finding out about the wisdom/implications of continuing to play impact sports AFTER contracting Dupuytrens.

I used to rock climb at least once per week and blame rock climbing for getting DP at a relatively young age (along with having DP in the family on both sides although other famil members acquired DP at a much older age). The following is a research paper on the subject:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1725323/

The article appears to suggest 19.5% of rock climbers have DP, much higher than the general population, the conclusions of the report are as follows:

There is a higher prevalence of Dupuytren’s disease incommitted male rock climbers compared with figures
reported for most areas of the United Kingdom:

> Climbers develop the disease at an earlier age compared with the general population.
> The disease is more severe in climbers, with a greater proportion of finger contractures.
> The greater the lifetime climbing intensity, the greater the likelihood of a climber having Dupuytren’s disease.
> Specific hand injury is unrelated to the development of the disease.
> This study therefore strengthens the hypothesis that repetitive strain to the palmar fascia over many years is a significant factor in the development of Dupuytren’s disease in men.

I have been coming across similar statistics on DD in rock climbers and discussion about it on their boards. This is in direct contrast to Hand Specialists who tell me there are no behavioral factors involved in DD.

I have early onset DD exactly where I've felt repetitive strain for years as I wield a stylus in my graphic design work. This is micro-damage that I believe could have possibly been prevented had I known about DD. Inflammation brought on by micro-damage, the beginning of a cascade effect, possibly unstoppable at this point.

That said, I am going through RT at this time & concentrating on an anti-inflammatory regime.

Not impact, but my hand is wrapped around the mouse for long periods. People say that won't affect DD, but I wonder. I was 70 when DD showed up on my right hand, and I had been using the mouse a lot more in recent years.