Fitness gurus

Muhammad Ali training at Territorial Army Gymnasium in London in 1966.  (Wesley / Getty Images)

Tracy Anderson trains some of the world’s most famous bodies. She has teamed up with longtime client Gwyneth Paltrow to launch the Restart Project, an AOL Web series celebrating women who’ve healed themselves from the inside out.   (Laura Cavanaugh / Getty Images)

The original fitness queen, Jane Fonda’s 1982 “Workout” is the bestselling exercise video of all time.  (Mel Melcon / Los Angeles Times)

American fitness instructor and health guru Jack LaLanne, circa 1990, introduced the American housewife to physical training. Known as the Godfather of Fitness, LaLanne helped pioneer the modern fitness industry. He died in 2011 at age 96.  (Maureen Donaldson / Getty Images)

A small, sickly child, Lee took up martial arts to beef up his scrawny frame. The film “The Way of the Dragon” (released a month after his death in 1973, at age 32) cemented his status as the most iconic martial artist of all time.  (Archive Photos / Getty Images)

First Lady Michelle Obama participates in a yoga class during a visit to the Gwen Cherry Park NFL/YET Center in Miami. The visit was part of a celebration of the fourth anniversary of Let’s Move!, her healthy children initiative.  (Joe Raedle / Getty Images)

First Lady Michelle Obama exercises with children on the South Lawn of the White House during an event announcing the creation of a program to promote military family wellness.  (Chris Kleponis / AFP/Getty Images)

Joeseph Pilates, inventor, physical fitness guru and founder of the Pilates exercise method, instructs a client on the Jackknife and works her through an exercise routine in his New York City studio in 1961.   (I.C. Rapoport / Getty Images)

Richard Simmons leads one of his classes at Slimmons Studio in Beverly Hills in 2013.   (Brian van der Brug / Los Angeles Times)

Simmons was obese as a child and young man. He says he was inspired to open his own gym because he found that other gyms were not very welcoming to overweight clients.   (Brian van der Brug / Los Angeles Times)