He added: “It has taken me time to feel ready to share my diagnosis, and I have found it difficult not being completely open with people.
“Personally, my passion and love for coaching is as strong as ever, I am focusing on keeping physically fit, which is key to slowing down the progression of Parkinson’s.
“I am ready to start the next chapter in my life.”
LMA chief executive Richard Bevan said: “Aidy has displayed incredible positivity, resolve and determination since his Parkinson’s diagnosis three years ago.
“We care deeply for all our members, and Aidy’s attitude since his diagnosis has been an inspiration to our entire team as we continue to support him and his family throughout this unexpected and challenging time.”
Boothroyd managed Watford from 2005-2008, winning promotion to the Premier League in 2006 and reaching an FA Cup semi-final the following season.
He also managed Colchester United, Coventry City, Northampton Town and from 2014-2021 was in charge of various England’s youth teams.
Most recently he managed Indian side Jamshedpur.
Parkinson’s disease, external affects nearly 10 million people worldwide and more than 150,000 in the UK.
There is no cure and no treatment to slow or stop the disease, although therapies exist to help manage symptoms.
If you are affected by any of the issues raised in this story, support and advice is available via the BBC Action Line.
