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How much does body type really affect athletic performance?
In this talk, sports nutritionist Dominique Kondo explores the hidden pressures that female athletes face and why so many women still feel judged more for how they look than for what they can achieve.
Drawing on research and real-world experience with elite athletes, she shares practical ways to build cultures that value strength, confidence and well-being.
4.35 a.m., the alarm goes off.
5 a.m., a 50K training ride.
630 am a strength session, often fighting through muscle fatigue and sometimes even period cramps.
8 a.m., breakfast with a nutrition plan calculated to the gram.
9 am off to work or university because many female athletes juggle jobs or study with their sporting careers.
Now, that's a fairly typical morning for many elite female athletes strong disciplined, driven and constantly measured.
Isn't the female body extraordinary?
It adapts, it endures, it creates life, it recovers from injury, responds to training and achieves feats of skill, strength and power once thought impossible.
And yet, in 2025, women are still judged more for how they look than for what they can do.
Judged more for how they look than for what they can do.
At the top of their game, up to 70% of elite female athletes report body image concerns.
You heard me, up to 70%.
Now this is women with Olympic medals, premiership trophies, world records, and still they feel the pressure to look a certain way which is often at direct opposition with how they need to build their bodies for competitive success.
Now this topic is such a passion of mine because I live and work in this space every day.
I am surrounded by some of the most intelligent, hardworking, resilient women in sport.
Women who can outrun, outlift and outthink most people in the room, and yet they battle a world that comments on their appearance before their capability.
How is this fair, I ask you?
At the top of her game at world number one Ash Barty walked away, choosing to define success on her own terms.
Elite Olympic gymnast Simone Biles reminded the world that mental and physical well-being are performance foundations, not weaknesses.
And here in Australia, AFLW play is a juggling work, study and public commentary about how they look in their uniform, when all they want to do is play.
Why is this still happening?
Why are we so comfortable judging athletes on aesthetics? and what are we going to do about it?
Now, this talk isn't just about elite athletes.
It's about what happens when performance and appearance collide yes, in sport, but also in schools, in workplaces and even in our own homes.
When we celebrate appearance over capability, we send that message to our daughters, our sons and our colleagues that how we look matters more than what we do.
And that doesn't just hold athletes back.
That holds all of us back.
So to start to make a real difference, we have to understand where the pressure and commentary comes from in the first place.
Now, let's talk about the sources of pressure.
Some are external the uniform that feels exposing the commentator that talks about how she looks before, how she plays.
The constant scrolling through social media of the perfect body.
And others are internal the comparison of skin folds between teammates, the coach that says you need to be leaner, with very little context, and the athlete herself chasing unattainable goals.
And then there is language, the invisible force that can fuel or fracture performance.
I once worked with an athlete who crumbled after being told, you're too heavy to compete.
That same athlete later thrived when the conversation was reframed to.
Improving your repeat sprint ability will give you a competitive edge.
Let's get to work on a training and fueling program and make that happen.
In sport and in life, language is not just communication.
It's a performance tool.
Research has shown that even subtle word choices from coaches, parents and peers can significantly impact an athlete's confidence, motivation and even risk of disordered eating.
The words that we use are the stories that athletes tell themselves.
Now I'm going to talk about quite a taboo topic of physique.
Now, I know this might be controversial, but here we go.
Physique matters.
At the highest level, different sports require different builds.
Lean mass for power in football, strength to weight ratio, gymnastics, lighter frames for endurance.
So no, in elite sport we should not ban body composition assessment because, if used correctly, it is an invaluable performance tool.
However, the damage occurs when those numbers are used as an identity.
The public weigh-ins, the comparison between teammates, when measurement is used as punishment.
That's when science becomes shame.
And we've all seen the fallout.
Serena Williams, 23-time Grand Slam champion, was told her power made her look too muscular.
AFLW player Taylor Harris was body shamed for an image that should have been celebrated as pure athletic brilliance.
And even Olympic champion Emma McKeon, has spoken openly about the pressure of appearance in swimming.
So the take home?
Yes, physique and performance may be linked.
But appearance should never overshadow capability.
So what happens when the balance tips the wrong way?
Well, athletes can underfuel.
And from here, we see the cascade of events.
Hormonal dysregulation, menstrual dysfunction, fatigue, bone loss, slower recovery.
The result?
Performance declines, strength plateaus, injuries mount.
And this isn't just specific to athletes.
Think about your own life.
When was the last time you skipped a meal, trained, exhausted or didn't sleep well?
Did you perform better?
Well, neither do they, except their livelihoods depend on it.
Prolonged low energy availability has been shown to reduce power output, endurance capability and decision making.
And that is why we cannot separate body image from performance.
So is this all doom and gloom?
Or how do we fix it?
Well, we build environments that are performance focused and athlete centred.
So what does that mean?
Well, it means education in fueling, in energy availability, in menstrual health, and not just for athletes, for coaches as well.
It means individualisation because optimal body composition is specific to the individual athlete.
Language protocols that are private, functional and constructive.
And choice. in testing, in uniform and in timing.
And here's the thing, when we do these things, performance improves.
I've seen teams transform, confidence rises, engagement lifts, results follow.
And this is not about lowering standards or wrapping athletes up in cotton wool.
It's about raising awareness so we can pursue that excellence safely, intelligently and sustainably.
Now, some sport are leading the way in this space.
IOC, Safe Sport Initiatives and professional organisations like Swimming Australia, who have invested in education, language training and measurement standards.
But it takes everyone, coaches, administrators and the public.
Now you might still be sitting there thinking, really, what does this have to do with me?
Again, this is not just about elite sport.
All of us have felt the weight of appearance in some way.
For women, that might be to be smaller, thinner, more feminine.
For men, it may be to be taller, bigger, more masculine.
Think about it.
When was the last time you compared yourself in the mirror, at the gym or online?
Praise for losing weight when no one actually asking if you're happy or healthy.
Or took 20 photos before posting one because you didn't like the way you looked.
Now imagine that pressure times by a thousand.
Your body constantly scanned, discussed, linked directly to your contract.
And men aren't immune to this either.
Research has shown that male athletes and teenagers also struggle with body image.
Maybe not to be thinner, but to be broader, stronger, more muscular, more defined.
Different pressure.
Same story.
The reality is we're all living under performance expectations shaped by appearance.
But for young women getting into sport out there, I want you to know your body is not the barrier to success.
It is the vehicle that will get you there.
So what's the takeaway?
That it's time to redefine female performance, not by size, shape or aesthetics, but by power capability, confidence and resilience.
For coaches and parents, use language that builds.
For teachers, focus on effort and progress.
For fans, celebrate strength and courage, not appearance.
And for friends and colleagues, notice when you praise looks over capability.
Because word-shaped beliefs...
Beliefs shape behaviours and behaviours shape performance.
When we shift the conversation, we don't just create healthier athletes, we create stronger performances.
And outside of sport, we create a society where women feel free to show up unapologetically just as they are and still perform at their best.
Thank you.
That was Dominique Kondo speaking at TEDxDeakin at the University of Melbourne in Australia in 2025.
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And that's it for today.
TED Talks Daily is part of the TED Audio Collective.
This talk was fact-checked by the TED Research Team and produced and edited by our team Martha Estefanos, Oliver Friedman, Brian Green, Lucy Little and Tansika Sungmarnivong.
This episode was mixed by Christopher Fasey-Bogan.
Additional support from Emma Taubner and Daniela Balarezo.
I'm Elise Hugh.
I'll be back tomorrow with a fresh idea for your feed.
Thanks for listening.
