Henry started with the club earlier this week and arrives at the Light Blues with a great deal of Premiership experience.
Having begun working in football in 1996, he had nearly four years as Aston Villa’s first-team fitness coach between 2006 and 2010.
Henry also spent time at Sunderland as their Head of Athletic Performance at first-team level between November 2011 and March this year.
A former Scottish judo internationalist, his methods have attracted praise from the likes of current Manchester City midfielder James Milner in the past.
Someone Ally McCoist knows from his youth in East Kilbride - he attended Hunter High while Henry was a pupil at Duncanrig – the manager is delighted to have appointed him.
The Gers boss said: “Jim has joined the coaching staff and I have no doubt he will be a huge success. His expertise will undoubtedly help the players prepare for the challenges ahead.
“He has enjoyed his time with the players in the last few days and will get the squad in peak condition for the campaign ahead.
“This pre-season is very different from last term as we couldn’t adequately prepare. We have a full programme of matches to play plus a trip to Germany.
‘His experience and knowledge is second to none and we all look forward to working with him on a daily basis.”
Chief executive Craig Mather added: “We are delighted to welcome Jim to Rangers. He has a proven track record of excellence in his field and a wealth of experience to offer this club.
“He will be a valuable addition to the football department and I know Ally and Kenny McDowall rate him very highly.
“Jim has worked at a number of clubs north and south of the border, including Aston Villa and Sunderland, and we wish him well in his new role.
“Already we have seen signs of Jim’s positive impact and influence in the first week of pre-season and believe Rangers fans will witness a much higher level of fitness because of his expertise.”
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