“Throughout my life I’ve been a skier, weightlifter, hiker and runner, including many local 10K races. Following open-heart aortic valve replacement surgery in late 2023, I embarked upon a cardio rehabilitation program introduced by the cardio center: I do a mix of of high-intensity resistance training, free weight exercises, machine resistance training, cardio on the treadmill or stationary bike, lap swimming and yoga. I do all of this at my local 24 Hour Fitness, where 20 years ago I was able to snag the greatest deal of my life — a lifetime membership for $5 per month.”

—Mark Olsen, 57, Redondo Beach, circuit trains for 30 to 60 minutes daily

“I love the fact that I am able to maintain my routine over the past few years. I feel much stronger and more agile. No matter how tired I am, when I start strength training, I feel very energetic afterwards with a positive attitude towards things.

I work out with a trainer two times a week, so I have to show up no matter what. My third session is a group class and after a few sessions, I began to feel a part of the group. The leader of the group class is like a camp counselor urging us to go farther and work harder. And with fun music I would probably never listen to [on my own], I really enjoy each class.”

—Susan Freedman, 65, Westchester, weight lifts for 45 minutes three times a week plus 30 minutes on a stationary bike, five days a week

“I race walked in college and continued to do that sporadically. Other than that, I never weight lifted before. I love the toned look of muscles and I like feeling strong and not having to ask for help moving or lifting things. It gives me a feeling of independence.”

—Edith Hicks, 66, Chatsworth, weight lifts twice a week

“I have tried to stay active my whole life, everything from boxing and martial arts when I was young to road and mountain biking, rock climbing and skiing. I started [circuit training] at 17 and have been doing it for 52 years. I warm up with dumbbells, walk, do a set of push-ups, run and do another set of push-ups. And keep repeating.

I turn 70 this year and I’m ‘celebrating’ by doing 700 push-ups on my birthday and 70,000 push-ups for the year. My goal is to add 1,000 push-ups a year for as long as I can.”

—Paul Clark, 69, Virginia, circuit trains for two hours a day, five days a week