Getting Stronger With Age
Getting older doesn’t mean it’s time to sit on the sidelines. You don’t have to grow weaker and give up what you love. No matter how many miles are on the odometer, you can get older and stronger.
And this strength can impact your healthy lifespan in powerful ways. As we’ll show you below, getting stronger is associated with better aging and mortality, stronger bones and heart, and improved quality of life.
The best news? It’s never too late to add strength and experience the benefits of exercise. But if you want to stay fit (get in even better shape) as you age, you need to start thinking about your training differently.
The reality is that growing older brings the possibility of age-related changes. Left unchecked, they can alter your quality of life and even contribute to a shortened lifespan.
Heart disease is the number one killer of men and women in the United States. And according to the National Institute on Aging, older adults (people 65+) are at higher risk.
Why does this happen? As we age, fatty deposits can build up in the walls of our arteries. Over time, these deposits (called plaque) can harden and slowly narrow the arteries. This process, called arteriosclerosis, reduces blood flow and oxygen to the heart, leading to an increased chance of a heart attack.
Age-related changes happen in your skeletal system as well. Bone is a living tissue. Although changes might not occur as rapidly as they do elsewhere in the body, bone tissue is broken down by the body and replaced.
At around age 50, our body starts breaking down more bone tissue than it replaces.
Not Much Change With Your Metabolism
Do you know what doesn’t change all that much as you age? Your metabolism. New research published in Science showed that when you account for differences in body size, your metabolism does not change between the ages of 20 and 60.
(Let that sink in.)
For years (maybe forever?), the assumption was that our metabolism slows down as we age. But, the ground-breaking study, which combined the work of more than 80 scientists, 6,500 participants (aged 8 days to 95 years old), and the gold standard methods of testing metabolism, shook the foundations of weight loss science.
Some rules still hold. Despite the common belief that lean people have faster metabolisms, the heavier you are, the more calories you burn. But, once you account for the differences in size, metabolism doesn’t change as much as we thought, and that applies to men and women.
After age 60, metabolism does start to decrease about 1 percent per year. Maybe not surprisingly, this appears to be correlated with a reduction in activity. So, the more active you stay as you age, the better.
If you can’t move your joints freely through their range of motion (and control it), your chance of injury or dangerous falls increases.
If you’re injured, it’s hard to do regular exercise. And if you can’t exercise, that’s when muscle loss begins. Why does this matter? Muscle loss is strongly correlated with a lower (or shorter) lifespan.
Avoiding injury also plays an indirect role in weight loss. Regular physical activity outside the gym (called NEAT) can help maintain your body weight in a healthy range. Move less during the day, and the pounds could sneak up on you like the decades.
So, mobility is essential to a higher quality of life and a longer life.
Unlike strength training (which we’ll explore more below), there’s an inverse relationship between mobility and aging. You likely need to invest more weekly time to maintain mobility as you age.
How much? Strength Coach Mike Boyle once suggested that you should base your mobility sessions per week on every decade you’ve lived. If you just turned 50, that would mean mobility work five times a week.
That doesn’t mean you need to spend an hour a day stretching. After all, getting older doesn’t mean you have fewer time constraints on your day. For most people, 10-15 minutes a day is enough.
Not sure where to start? Try extending your warm-up before strength training sessions. By piggybacking on an existing habit (your workout), you’re more likely to make mobility a habit.
For most of our clients, I suggest a 4:1 work-to-mobility ratio. So, if your workout takes 40 minutes, you should start with 10 minutes of mobility and flexibility work.
You could also pair mobility with cardio on rest days. Before you head out on a walk (you are walking every day, right?), do 6 reps on each side of a move. You’ll loosen up your entire body and elevate your heart rate.