Mr. Barry Webb is an 82-year-old bodybuilder, exercise enthusiast, and certified personal trainer (from the American Council on Exercise), he is also a member of the National Strength and Conditioning Association. He has a BA in education from the University of Arizona and two masters degrees.
He has over six decades of experience training, designing exercise programs, and helping others.
His current personal routines include a lot of "free body" movements from physical therapy, ballet and jazz dance, "body-building" movements such as push-ups, chin-ups, pull-ups, and hanging leg raises (lifting legs until the ankles are above the bar), as well as the usual power-lifting and body-building moves with the good old barbells and dumbbells.
His primary aim at this stage of life is to teach other seniors, near seniors, and anyone else interested in longevity, how to do his routines and how to extend their "healthspans."
No matter what your current level of fitness is, there is a step-by-step process for achieving this. Mr. Webb personally has had injuries and surgeries that have required total rehabilitation by following these step-by-step procedures.
There are numerous "experts" in their thirties and forties who have written essays and gotten degrees in anti-aging and strength training for seniors, but why not learn from someone who has actually been there, seen that, done that?