Playing sports as an adult presents a few challenges; fitness levels, time available and, for me at least, the time of day most of these sports are played.
One thing I hear all the time when I sit down with people is this:
“I’ve never really been a gym person… but I’ve always played sports.”
And I get it.
Sports are fun. They’re competitive, social, and they give you a solid hit of fitness without you having to think about “working out.” You’re focused on the game, not the calories, not the sets and reps.
That’s a big win.
But there’s a problem that shows up over and over again with adults who rely only on sport for their fitness.
Sports Are Repetitive By Nature
No matter what sport you play, your body is going through very similar patterns over and over again.
Tennis. Golf. Hockey. Soccer.
You’re using the same muscles. Moving through the same ranges. Loading the same joints.
Again and again.
That’s just the nature of sport.
And over time, that repetition starts to add up.
This is why some of the most common injuries we see come from people who play sports regularly but don’t do anything else.
Tennis players with bad knees or elbows.
Runners with hip or ankle issues.
Hockey players with tight hips and lower back pain.
It’s not because the sport is bad.
It’s because the body isn’t prepared for the demands of it.
You Can’t Just Play More
When people get into a sport, especially later in life, there’s a natural tendency to just do more of it.
You enjoy it.
You want to get better.
So you play more.
It makes sense.
But more isn’t always better.
If your body doesn’t have the strength, stability, and range of motion to support what you’re doing, more volume just means more stress in the same areas.
That’s when things start to hurt.
And once you’re dealing with aches and pains, it becomes much harder to keep playing at the level you want.
Skill vs Capacity
Getting better at a sport comes down to two main things:
Your skill level.
Your physical capacity.
Most people only focus on the skill.
If we use tennis as an example, that means:
Working on your serve.
Dialing in your forehand and backhand.
Practicing your footwork.
All important.
But what about your body’s ability to actually perform those movements over and over again without breaking down?
Can you:
- Squat well and generate power from your legs?
- Control your body through different positions?
- Stabilize your joints under load?
- Move through full ranges without restriction?
If the answer is no, your ceiling in that sport is limited.
And your risk of injury is higher.
Build The Base
This is where functional fitness comes in.
If you enjoy playing sports as an adult, you need to build a base that supports it.
That base is simple:
Strength training 3x per week.
That’s about 1.7% of your entire week.
Not a huge ask.
From there, you can layer in your sport 1–3 times per week depending on your schedule and how much you enjoy playing.
Now you’ve got a balance.
You’re not just practicing the sport.
You’re preparing your body for it.
Train For The Positions You End Up In
Let’s go back to tennis.
At some point, you’re going to have to stretch for a ball.
You might end up in a wide, almost split-like position.
If your body has never been there before under any kind of load, what do you think happens?
That’s where things go wrong.
But if you’ve spent time building strength through full ranges of motion, doing things like split squats, lateral work, even movements like Cossack squats, your body is far more prepared.
Same goes for upper body strength.
If you can’t control your shoulders, if you lack pulling strength, if your posture is off, that repetitive hitting is going to catch up with you.
The Reality Most People Learn Too Late
People love playing their sport… until it starts to hurt.
Then it becomes:
“My knee is acting up.”
“My shoulder is bothering me.”
“My back is tight after every game.”
At that point, they wish they had done the strength training earlier.
Because now you’re not just building fitness.
You’re trying to fix a problem.
And that’s always harder.
The Bigger Picture
Functional fitness isn’t there to replace your sport.
It’s there to support it.
It allows you to:
- Play longer
- Play better
- Recover faster
- Stay injury-free
And the benefits go far beyond the court, field, or rink.
You’re building a body that’s strong, capable, and resilient for life.
The Bottom Line
If you love playing sports as an adult, keep playing.
But don’t rely on the sport alone to keep you fit.
Build the base.
Get strong.
Move well.
Train consistently.
Then go and enjoy your sport at a higher level, for longer, without your body holding you back.
That’s the goal.
