Combining CrossFit and Physiotherapy: How Our Physiotherapist Utilizes her Passion for the Sport to Benefit her Patients' Health
- Kylie Siu

- Jan 22, 2024
- 4 min read
Updated: Mar 17
Discover how physiotherapy and CrossFit intersect. Learn injury prevention, benefits for all ages, and why this fitness approach works.

"What is this CrossFit thing?"
"Look at their training, so intense and scary"
"Look at them passing out after every workout"
"Looks like an injury waiting to happen anytime"
I'll admit it, ten years ago, those were the exact thoughts running through my mind as I stepped into my first-ever CrossFit gym.
Beforehand, as a physiotherapist in Singapore, my role in rehabilitation focused primarily on understanding and treating injuries and ensuring the overall well-being of clients. Stepping into a seemingly contrasting world of health and fitness - where athletes regularly engage in a rigorous mix of intense strength and conditioning, plyometrics, calisthenics, Olympic weightlifting, and gymnastics - was mind-bending to say the least.
The Skepticism When A Physiotherapist Met CrossFit Training
I had heard many stories from my colleagues, who would encounter athletes who sustained injuries from doing CrossFit. A niggling shoulder pain from butterfly pull-ups (are they even real pull-ups?), or low back pain from multiple thrusters (let's not even get started on the number of athletes complaining about knee pain or skin loss from box jumps).
Whatever it was, it certainly looked like CrossFit practitioners were a particularly injury-prone bunch.
But why was it so? Was it that this sport was just plain bad, the workouts poorly designed, or just terrible coaching in general?
The Turning Point: Personal Experience Over Professional Bias
Yet, the popularity in CrossFit continued to rise, and I thought to myself: "Why not go experience this for myself?"
So I did.
And I went again.
And again.
Once a week eventually became three times a week, and before I knew it, I realised that I liked this CrossFit thing. Very much indeed.
While in the beginning during each class, I would unleash the cynical physiotherapist in me to assess weightlifting movements such as the squat or shoulder press, and thought: “They're going to hurt themselves." I even witnessed athletes who are heavier, who should not have any business doing box jumps according to typical physiotherapy textbooks ("What if their knees explode?!"), execute great box jumps.
These very same individuals that I set my judgment on continued to turn up every week and demonstrated consistent gains, not just physically but in their character as well. The feeling of empowerment that CrossFit brought to these individuals was remarkable. The strong community and sense of belonging quickly became integral components of their fitness journey, as well as mine.
The Realisation that Rehabilitation and Functional Fitness Exist on a Spectrum
Then, it suddenly dawned on me: being a professional in the realm of rehabilitation is not so different from CrossFit training, as they merely exist not as separate entities, but along a spectrum.


Physiotherapy after all, is training in the presence of an injury. And if we were to combine them together, CrossFit can be enjoyed by basically anyone, at any age, at any fitness level, without or without the presence of injuries, and still get the numerous benefits of being able to move safely and efficiently.
The evidence strongly supports this perspective. Research demonstrates that CrossFit training improves cardiovascular health, increases strength by 9-17% in just 12 weeks, builds lean muscle mass, and reduces body fat.
More importantly, CrossFit improves functional fitness for everyday life. Movements like squats, deadlifts, and lunges directly translate to easier stairs climbing, carrying groceries, and moving efficiently throughout your day. Beyond physical metrics, improved metabolic health, enhanced cardiovascular endurance, and protection against chronic diseases are well-documented benefits.
The Holistic Approach: Physiotherapy as an Extension of Fitness
What I've come to understand is that physiotherapy and CrossFit are not competitors; they're complementary. Fitness serves not only for rehabilitation after injury, but also as a natural insurance policy to prevent injury in the first place.
The athletes I see achieve the greatest long-term success when they embrace both:
Proactive injury prevention through proper movement assessment and exercise prescription before problems arise
Functional training that prepares them for real-life demands
Community support that motivates consistent participation
Professional guidance that balances intensity with sustainability
Physiotherapists working with CrossFit athletes use evidence-based approaches. Using tools like Functional Movement Screen (FMS) or Selective Functional Movement Assessment (SFMA), we identify mobility restrictions, asymmetries, or faulty movement patterns that could predispose athletes to injury.
Once problems are identified, physiotherapists prescribe targeted mobility exercises, activation work, and stability training that athletes can use in their warm-ups and training programs.
We also help athletes understand progressive loading, deload weeks, and proper recovery timing. We optimise CrossFitters’s techniques using subtle cues, like maintaining neutral spine alignment or proper knee tracking during squats, making movements much safer while improving athletic performance.
Most importantly, as physiotherapists, we try our best to teach athletes to distinguish between "good pain" (muscular effort during exertion) and "bad pain" (joint strain or tissue damage), and to recognise early warning signs of overtraining.

A Message to Others: Start Somewhere
As clichéd as this advice might be, start somewhere. I hope you'll find a sport or training approach that brings your health and fitness into longevity, just as I found mine in CrossFit.
Ten years on, I'm proud to say that I continue to serve as an ambassador bridging the gap between rehabilitation and the pursuit of optimal health. While some physiotherapists choose Pilates, powerlifting, yoga, or other forms of fitness, I choose CrossFit as an extension to help others move better, feel better, and thrive.
I continue to look forward to partnering with more like-minded therapists, fitness trainers, and coaches to empower others around us, creating communities where movement quality is celebrated, injury prevention is prioritised, and functional fitness becomes a pathway to lifelong health rather than a destination of exhaustion.
Because in the end, the best fitness approach is the one you'll stick with, and the one that combines professional guidance with community support will always win.
Ready to Bridge Rehabilitation and Functional Fitness?
Whether you're looking to start your CrossFit journey safely, recover from an injury, or optimise your athletic performance with expert physiotherapy guidance, us physios at Thrive Healthcare are here to support you every step of the way.
Contact Thrive Healthcare today to discuss how we can help you move better, train safer, and achieve your fitness goals through our integrated physiotherapy and coaching approach.




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