In the early 1970s, most Americans still viewed exercise as unusual, even unnecessary. Gyms were scarce, and women often had limited access to athletic spaces.
However, after 1972, that began to change dramatically. Title IX, the federal law prohibiting sex discrimination in education, opened the door for women to participate in sports and fitness, helping transform how Americans viewed exercise.
One of the decade’s most visible shifts was the rise of jogging. Before the ’70s, running in public was rare, even odd. But books such as “The Complete Book of Running” (1977) and the rise of Nike’s early running shoe — developed by company cofounder and jogging advocate Bill Bowerman — helped popularize the pursuit as an easy and accessible way to stay fit. Soon, seeing people run through their neighborhoods became a normal part of American life.
Around the same time, group fitness activities exploded. Aerobics, which began gaining traction in the 1960s, evolved into new forms such as Jazzercise, which blended dance and cardio into high-energy classes. These workouts were social, fun and often set to disco beats, making exercise feel less like a chore and more like a celebration. For women, especially, group classes offered a welcoming space in which to move, sweat and build community.
The decade also marked the birth of exercise science. Researchers began studying the physiological benefits of regular workouts, giving credibility to what had once been dismissed as a fad and helping fitness make its way into mainstream culture.
By the end of the 1970s, jogging shoes, aerobics classes and gym memberships had become part of everyday American life. The era’s blend of science, social change and cultural energy created today’s $22.4 billion fitness industry.