Remember when Jane Fonda revolutionized exercise in a leotard and leg warmers?

Remember when Jane Fonda became the queen of 1980s at-home exercise? Released in 1982, "Jane Fonda's Workout" is one of the bestselling VHS tapes of all time. Following on the heels of her New York Times bestseller of the previous year, "Jane Fonda's Workout Book," the home video helped galvanize the actor's aerobics empire, which held strong throughout the '80s and into the '90s. With VHS tapes, books, LPs and those long-forgotten videodiscs, Fonda showed us why we didn't need the gym to get fit, laying the groundwork for the hugely profitable home video industry at the time -- not to mention the explosion of the fitness industry today. As gyms and in-person classes have shifted to living room workouts due to the coronavirus pandemic, Fonda's ballet-inspired classic routine has been thrust back into the spotlight and touted as standing the test of time. (She's even taken to TikTok to revive the workout and promote her climate crisis efforts.) When Fonda released the video of herself in a striped leotard, black tights and burgundy stirrup leg warmers -- flanked by a crew of high-energy men and women whooping through repetitions of side stretches and leg lifts -- she was undergoing something of a reinvention. Fonda is no stranger to reinvention. Born to an actor father (Henry Fonda) and socialite mother, she rose to fame in the 1960s with a string of romcoms and as the spacey vixen of 1968 cult classic "Barbarella," before diving into political activism in the US, notably as a thorn in the side of then President Richard Nixon. Like many Americans, the civil rights movement and the Vietnam War had inspired Fonda to activism in the late 1960s, and her fundraising for the Black Panthers and antiwar campaign efforts eventually landed her under surveillance by the FBI, CIA and NSA. In 1970, her now iconic mugshot, showing her with choppy hair and a defiant raised fist, captured the mood of the counterculture. Fonda had been arrested on suspicion of drug trafficking and for assaulting a customs officer while on her way into Cleveland after giving an anti-Vietnam War speech in Canada. Remember when Dolly Parton fully subverted the 'dumb blonde' cliché with her '80s excess styling? But Fonda's mugshot wasn't the only image of her to spread like wildfire. In 1972, she ignited outrage when she was photographed while touring North Vietnam, where she made a radio plea to US troops to reconsider the civilian cost of the war. Fonda has repeatedly apologized for the photo, which showed her on an anti-aircraft gun used to take down American planes. Media outlets ran with the biting nickname "Hanoi Jane." "The longer space you put between yourself and the addiction, the easier it gets," she told People in 2018. "I started the workout, and that kind of cemented my ability to eat normal, which I can do now. Some people say you can never get over it, but you can." This February, Fonda will receive a lifetime achievement award at the Golden Globes. Outside of her acting work, her ongoing activism has also been in the spotlight. In 2019, she launched a series of climate action events called Fire Drill Fridays in Washington DC. There, she has led demonstrations -- and been arrested while doing so -- while wearing her recognizable bright red coat, which she has vowed is the last item of clothing she'll ever buy, in order to keep a more sustainable closet. Fonda's fitness brand and her activism have always been connected through their purpose, but she has always remained ardent in their symmetry of spirit as well. Early in her career, she stated: "Any healthy country, like any healthy individual, should be in perpetual revolution, perpetual change." Through all of her reinventions, that belief has been a constant.