Strength training has become one of the hottest topics in endurance sport.
Scroll through social media and you’ll see runners squatting, cyclists deadlifting, triathletes swinging kettlebells, and coaches promoting strength training as the missing piece of the performance puzzle.
But do endurance athletes really need strength training?
The answer is not as simple as yes or no.
Like most things in endurance coaching, it depends on the athlete, their goals, their injury history, and perhaps most importantly, how much time they have available to train.
Endurance Performance Is Primarily Aerobic
Whether you’re training for a parkrun, half marathon, marathon, triathlon, Ironman, cycling event, or ultra-distance race, your performance is largely determined by your aerobic fitness.
Your ability to take oxygen from the air, deliver it to your working muscles, and use it efficiently is the foundation of endurance performance.
That’s why the athletes who consistently improve are often the athletes who consistently train.
Before worrying about strength training, most recreational athletes would benefit far more from:
- Consistent training
- Building aerobic capacity
- Improving movement economy
- Developing sport-specific endurance
- Recovering properly between sessions
These are the factors that typically deliver the biggest gains.
The Principle of Specificity
One of the most important concepts in training is specificity.
If you want to become a better runner, run.
If you want to become a better cyclist, ride your bike.
If you want to become a better swimmer, spend time in the pool.
Your body adapts specifically to the training you perform.
This doesn’t mean strength training has no value. It simply means that endurance athletes need to carefully consider whether strength training is the best use of their available training time.
For many recreational athletes balancing work, family, and other commitments, time is limited.
Every hour spent in the gym is an hour not spent swimming, cycling, running, recovering, or sleeping.
That opportunity cost matters.
Why Strength Training Has Become So Popular
There are several reasons strength training has become increasingly popular among endurance athletes.
Elite athletes use it.
Sports science research often highlights positive outcomes.
Social media influencers regularly promote it.
Gyms, strength coaches, and equipment manufacturers all benefit from its popularity.
At the same time, endurance athletes are an ageing demographic. Many athletes in their 40s, 50s, and beyond are looking for ways to maintain muscle mass, bone density, and general health.
The challenge is that health benefits and performance benefits are often treated as if they are the same thing.
They are not.
When Strength Training Makes Sense
There are situations where strength training can be extremely valuable.
Injury Rehabilitation
One of the clearest examples is injury rehabilitation.
If an athlete has undergone surgery, suffered an injury, or experienced significant muscle weakness, strength training can play a critical role in restoring function and returning them safely to training.
Identified Weaknesses
Sometimes an athlete has a specific weakness that has been identified through assessment, injury history, or movement analysis.
In these situations, targeted strength work can address the issue and improve performance or reduce injury risk.
The key word is identified.
Not suspected.
Not guessed.
Identified.
Age-Related Strength Decline
As we age, we naturally lose strength and muscle mass.
Regular endurance training helps slow this process, but targeted strength work can provide additional benefits for healthy ageing.
Specific Performance Limitations
In some cases, strength may genuinely be limiting performance.
A cyclist trying to produce higher power outputs or a paddler struggling to generate sufficient force may benefit from a well-designed strength programme.
The important thing is identifying whether strength is actually the limiting factor.
Strength Training Doesn’t Always Mean The Gym
One mistake many athletes make is assuming strength training only happens in a gym.
Strength training simply means increasing the resistance the muscles must overcome.
For endurance athletes, that can often be done within the sport itself.
Running
Hill repetitions increase resistance and force production while maintaining running-specific movement patterns.
Cycling
Big-gear intervals and hill climbs require greater muscular force while remaining highly specific to cycling performance.
Swimming
Hand paddles increase resistance through the water and challenge the muscles involved in the swimming stroke.
Kayaking
Adding resistance to the kayak can increase force requirements while maintaining sport-specific technique.
These approaches allow athletes to develop strength while continuing to improve the skills and movement patterns required for their sport.
Health Goals Versus Performance Goals
This is where many discussions about strength training become confusing.
Strength training can be excellent for:
- Bone density
- Healthy ageing
- General strength
- Injury rehabilitation
- Long-term health
But those benefits don’t automatically mean it is the best performance intervention for every endurance athlete.
If your goal is overall health, strength training may be a very high priority.
If your goal is improving your marathon, Ironman, or cycling performance, the answer becomes more nuanced.
What Should You Prioritise First?
When planning training, I encourage athletes to think about priorities.
For most recreational endurance athletes, the order looks something like this:
- Consistency
- Aerobic development
- Event-specific training
- Injury management
- Strength training
Think of it like baking a cake.
Consistency, aerobic development, event-specific training, and injury management are the ingredients that make the cake.
Strength training is often the icing on top.
The icing can certainly improve the final product.
But no amount of icing can rescue a cake that wasn’t baked properly in the first place.
So, Do Endurance Athletes Really Need Strength Training?
Sometimes yes.
Sometimes no.
The answer depends on the athlete.
If you have an injury, an identified weakness, age-related concerns, or a specific performance limitation, strength training may be exactly what you need.
If you’re struggling to fit training into a busy life and haven’t yet maximised your aerobic development, your next hour may be better spent swimming, cycling, running, or recovering.
Strength training is a tool.
Like every tool, it works best when used for the right job at the right time.
The challenge isn’t deciding whether strength training is good or bad.
The challenge is deciding whether it’s the best use of your next available training hour.
If you’d like to discuss a suitable strength training plan for your situation, feel free to book a consultation: