At 83, Charles Mammay starts most mornings the same way: a good long stretch as soon as he is out of bed, and then adjourning to his home exercise room.
There, he reaches for a pair of 25-pound (11.3kg) dumbbells and begins his routine – shrugs, side bends, then down to the floor for 50 to 80 push-ups and flutter kicks to work his core. An overhang pulley on the door helps him stretch his shoulders; exercise bands add resistance.
By the time most of his neighbours in Oak Island, in the US state of North Carolina, are pouring their first cup of coffee, Mammay is already well into the first phase of a day that will include four to five hours of exercise, repeated six days a week.
It is not unusual for him to visit two gyms in a single day – one for circuit training, another for bodybuilding – after starting with 45 minutes of callisthenics at home.
“Even with a bad heart, I keep going,” he tells the South China Morning Post matter-of-factly.
In 2014, during a cardiology check-up, he was told he had potentially serious issues and that if they were not corrected, he might have only two years to live. He was diagnosed with atrial fibrillation – an irregular, often very rapid heartbeat – and now wears a pacemaker.
“I got kind of bummed out about it,” he says. But instead of slowing down, he revved up.
Around that time, he started watching the long-running US sports entertainment reality show American Ninja Warrior. “I can do that,” he remembers thinking.
And he tried: twice. In 2015, at 72, he competed in a season seven qualifying event. At the time, he was the oldest competitor to appear on the show. He returned the following year. In both cases, he fell on the first obstacle.
While he brought his American Ninja Warrior experience to an end, his commitment to fitness continued.
He began training with fitness influencer Ginny MacColl, who herself became the oldest female American Ninja Warrior competitor when she took part in 2017 and is currently the oldest person to complete an obstacle on the show, which she did aged 72 in 2025. The two found camaraderie in pushing limits mostly associated with youth.
Mammay built his own obstacle course in his front garden, using timber discarded by construction crews. Today, it features peg boards, balance equipment and a 30-foot (9.1-metre) rope. The course has become something of a tourist attraction, he says.
This is where Mammay does some of his most meaningful work: he trains people for free, especially women in their 60s who have never exercised or who have been away from fitness for decades.
Twice a week, small groups gather in his garden for two-hour sessions that are equal parts sweat, laughter and encouragement. He challenges them to roll him in a wheelbarrow down his steep driveway – studded with speed bumps “to make it fun and interesting” – then push him back up again. He also has them wrestle a massive rubber tyre up the slope.
“We’re like a family,” he says of his motley crew. “We encourage each other to improve and do better.”
Mammay calls himself a motivational fitness coach. “I have the qualifications to be a trainer, but I don’t charge anybody anything,” he says. “I do it for free, out of my love for exercising.”
He is not shy about approaching newcomers at the gym, either, especially those hovering uncertainly near unfamiliar equipment.
“I find out people’s history and slowly I say, ‘Have you tried this?’” he says. “I try and inspire as many people as I can. Sometimes they’re inspired just by seeing me there. They think, if I can do this at 83, why can’t they do it at 60?”
One of his training partners, who is now 66, met Mammay at the gym two years ago. She was 18kg overweight then and had never been athletic.
“She needed encouragement,” he says. Today, she flies across his obstacle course and “runs like the wind”.
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Mammay was born outside Pittsburgh, Pennsylvania, one of nine children. At 18, after graduating high school, he went straight into the US Army.
“They shape you up real quick,” he says.
He spent six years serving in Thailand, Cambodia and Laos, while training in the medical corps and in radiology. When he returned home, he married and had a son.
He later managed a radiology department at a Massachusetts hospital and worked a string of physically demanding jobs, including as a docker loading and unloading ships. He moved around before eventually settling in North Carolina.
Through it all, one thing stayed constant. “I always kept in shape,” he says. “I played a lot of sports, including tennis. I ran. I’ve been very active just about my whole life.”
Still, Mammay says he did not truly lean into this level of fitness until he turned 70. That was when he began training seriously and helping others.
His days now are structured and disciplined, fuelled by simple food: oatmeal and a banana for breakfast, and vegetables, salad and protein later in the day.
“I do treat myself,” he admits. “If someone brings in cookies, I’ll have one. But as much as I work out, I try to make sure there is enough nutrition to fuel my body.”
For those intimidated by fitness, Mammay’s advice is simple.
“The first step is to just get off the couch,” he says. “Reach down and touch your toes. Stretch. Sit down and stand back up again. You don’t have to join a gym right away. You just have to get into the habit of getting up and getting moving first thing every morning.”
He tells people not to be afraid of gyms.
“They think they’ll be surrounded by muscle heads. But I tell them, ‘Once you get going, I’ll come with you. I’ll show you that we can all have fun together.’”
At 83, he says getting out of bed can sometimes be tough. Still, he looks forward to it.
“I challenge myself all the time,” he says. “No matter how hard it might be, I keep trying. People see me and I’m nowhere like 83 years old. I move fast. I’m strong. I tell them they’ve got 20 years to catch up to me.
“But I didn’t get this way overnight. I started way back, and I kept going.”
He shows no signs of letting up. An Instagram post from a year ago underscores his determination: “Three years ago at the age 79 I accomplished doing 300 pull-ups in one hour. Felt great about it. Today at 82 I was able to accomplish 300 pull-ups in 38 minutes. Age is only a number.”
For Mammay, the payoff is not medals or television appearances. It is watching someone who once doubted themselves climb a rope, balance across a beam, or simply show up again the next week.
“It’s been a great road,” he says. “And I’m going to keep doing it as long as I can help people.”
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Original source: cn