Latest / Deep Dive Ortho — Orthopaedic Surgery, AI & Digital Health Podcast. / The Future of Sports Medicine
Transcript
- 0:00Okay, let's unpack this. Today's deep dive tackles
- 0:03a question I think many of us grapple with. What
- 0:06really separates the exceptional from, well,
- 0:09the rest of us? Is it pure talent? You know,
- 0:12something you're born with? Is it just sheer
- 0:14hard work? Or maybe something else entirely?
- 0:17It's the perennial question, isn't it? Nature
- 0:19versus nurture, framed in achievement. Exactly.
- 0:22And we've pulled together quite a stack of sources
- 0:25today. We've got research on athletic performance,
- 0:28genetics, training. drawing quite a bit from
- 0:32things like the sports gene. Ah, yes. Good stuff
- 0:35there. And we're pairing that with insights from,
- 0:38perhaps surprisingly, orthopedic knowledge updates
- 0:40things, touching on human variability, complex
- 0:43decision -making, assessment. Which might seem
- 0:44worlds apart, sport, and trauma surgery, but
- 0:47the underlying principles. That's what we want
- 0:49to explore. Our mission, really, is to pull out
- 0:51the key nuggets on expertise and achievement
- 0:53using sport and medicine as these, well, fascinating
- 0:57case studies. Looking for those universal threads.
- 0:59precisely. So get ready for maybe some surprising
- 1:03facts, perspectives that might just make you
- 1:05think differently about talent and performance,
- 1:07even in your own work. Absolutely. It's fascinating
- 1:10how looking at elite sport, pushing physical
- 1:13boundaries and complex trauma surgery, pushing
- 1:17cognitive and technical limits. How they can
- 1:19both illuminate these core ideas about high performance.
- 1:22Definitely. Both involve navigating the very
- 1:25edge of human capability. And one idea that seems
- 1:28to have really, you know, taken hold in popular
- 1:31thinking is the 10 ,000 hours rule. Practice
- 1:34makes perfect, essentially. Yes. Often linked
- 1:37to Anders Ericsson's work on deliberate practice,
- 1:40it's certainly permeated the culture. But our
- 1:42sources, looking at them together, they seem
- 1:43to suggest it's maybe a bit more nuanced than
- 1:46just clocking up the hours. Precisely. I mean,
- 1:48accumulated practice is undeniably crucial. Ericsson
- 1:51himself, I believe, called it their real wizard
- 1:53behind the curtain. No one doubts its importance.
- 1:56But the way it's often interpreted in the media,
- 1:58This idea that anyone can hit expert level with
- 2:0310 ,000 hours and that no one gets there with
- 2:05less. That's a real oversimplification. Even
- 2:09Erickson and his co -authors, when they started
- 2:11incorporating genetics, initially argued the
- 2:13necessary genes were common to all healthy individuals,
- 2:17making practice history the differentiator. But
- 2:20the sources we're looking at, taken as a whole,
- 2:22they really paint a richer, more complex picture.
- 2:25Yeah. They show the effect of practice isn't
- 2:28uniform at all. So it's not just the quantity
- 2:30of practice, but maybe how our biology, our underlying
- 2:33makeup, interacts with that practice. Exactly.
- 2:36The sports gene source really dives into this,
- 2:38showing how different bodies can respond so differently
- 2:41to the exact same training program. How so? Give
- 2:43us an example. Well, think about aerobic training.
- 2:46There's a large -scale study called HERITAGE
- 2:48that stands for Human Exercise Response to Training
- 2:51in Heredity and Genetics. They put a diverse
- 2:53group of people through a standardized exercise
- 2:56program and tracked how much their aerobic capacity
- 2:59improved, basically. How well their bodies got
- 3:02it using oxygen. And the results. Remarkable
- 3:04variability. Just huge differences. You had some
- 3:07people, the high responders, who saw massive
- 3:09improvements in their fitness. Right. But then
- 3:11you had others, the low responders, who saw very
- 3:13little improvement or sometimes none at all.
- 3:15from the exact same training dose. Wow. So same
- 3:19work in, but wildly different outcomes depending
- 3:22on your sort of biological lottery ticket. That's
- 3:25the core takeaway here. An editorial commenting
- 3:28on similar findings, I think it was in the Journal
- 3:30of Applied Physiology, put it quite bluntly,
- 3:32it suggested that for low responders, their predetermined
- 3:36genetic alphabet soup just may not spell runner.
- 3:40Hmm, quite a statement. It points very clearly
- 3:42to this biological variability influencing trainability
- 3:45itself. You can put the hours in, absolutely,
- 3:48but your genetic makeup seems to profoundly influence
- 3:51how much your body adapts and improves from that
- 3:54effort. That's a really key point. It certainly
- 3:56challenges the simple effort equals outcome equation,
- 4:00doesn't it? It does. And beyond just how trainable
- 4:02we are, the sources also talk about specific
- 4:05physical traits becoming almost essential in
- 4:08certain sports, certain contexts or games, as
- 4:10the source calls them. Quite right. Professional
- 4:13sport has, in effect, become this huge sorting
- 4:16mechanism. Maybe a natural selection laboratory
- 4:19or perhaps artificial selection is better. Sorting
- 4:21for what? For specific physical attributes. Individuals
- 4:25with certain body types are increasingly channeled
- 4:28into sports where those traits give them a distinct
- 4:31advantage. We're seeing what the source calls
- 4:33extreme self -sorting. Meaning? Meaning elite
- 4:36body types for different sports are diverging
- 4:38quite rapidly, actually. Think about elite distance
- 4:41runners. They're tending to get shorter over
- 4:43time. Okay. Compare that to elite volleyball
- 4:45players or rowers. They're getting taller, larger.
- 4:48The demands of the sport are selecting for these
- 4:50forms. And it's not just overall size, is it?
- 4:52I remember reading about gymnasts. Not at all.
- 4:54Female gymnasts, yes, they've shrunk significantly
- 4:57over the last few decades. And conversely, Think
- 5:00about track and field. Tall women are hugely
- 5:03overrepresented in Olympic finals compared to
- 5:05shorter women. So the specific game dictates
- 5:09the ideal physical toolkit in a way. Seems so.
- 5:12It's more than just training. It's a fundamental
- 5:14physical difference being amplified by the competitive
- 5:17environment itself. There was another example
- 5:19cited about throwing. The difference between
- 5:21boys and girls, even when young. Yes, the throwing
- 5:24gap. It appears very early. And, intriguingly,
- 5:29it seems to persist even in cultures where you
- 5:31might expect less differentiation. The source
- 5:34mentioned studies in some Aboriginal Australian
- 5:36communities where girls were taught to throw
- 5:38for hunting, just like the boys. But the gap
- 5:41remained. The gap remained. Now, this isn't about
- 5:44saying one group is generally better, but about
- 5:46understanding specific, measurable biological
- 5:49differences. Like what, in this case? The source
- 5:51has mentioned evidence suggesting, for instance,
- 5:52that boys develop a slightly longer forearm in
- 5:55the womb. Really? Before any practice difference?
- 5:58Potentially yes. And that small difference could
- 6:01contribute to altered throwing mechanics right
- 6:03from the start, independent of practice or cultural
- 6:06nudges. Fascinating. And then you have those
- 6:08famous examples, populations known for dominating
- 6:11certain sports, like the kalenjin runners from
- 6:13Kenya or Jamaican sprinters. Ah, yes. Those case
- 6:17studies are always compelling, aren't they? They
- 6:19force you to look beyond just individual effort.
- 6:22Take the kalenjin. Incredible dominance in distance
- 6:24running. Astonishing. The source mentions that
- 6:27in just one month in 2011, 32 Kalinjin men ran
- 6:31a marathon faster than two hours 10 minutes.
- 6:3432 in one month. Compare that to I think only
- 6:3717 American men in history who have ever achieved
- 6:40that time. or consider St. Patrick's High School
- 6:43in Kenya, it apparently had four sub -4 -minute
- 6:45milers at the same time. That kind of concentration,
- 6:49it's hard to explain purely by training volume,
- 6:52even though they obviously train incredibly hard.
- 6:54It really makes you consider other factors, doesn't
- 6:56it? Genetic predispositions, unique environmental
- 6:58factors, cultural emphasis perhaps? It's likely
- 7:01a complex mix. The source mentioned the history
- 7:04of the Maroons in Jamaica as a possible factor
- 7:06for sprinting prowess. Yes, the idea linking
- 7:10it back to these selection pressures during slavery
- 7:12and the formation of the Maroon communities.
- 7:15One expert called it a convenient story, perhaps
- 7:18too neat. But the overall pattern across different
- 7:21sports, different populations? It is striking.
- 7:24It points strongly towards this complex interplay
- 7:27of nature, nurture, environment, culture. all
- 7:31tangled together. But the source was also quite
- 7:34conscious about the idea of finding a single
- 7:36athlete gene, wasn't it? That feels too simplistic.
- 7:39Absolutely spot on. That was maybe an early hope
- 7:41when genome sequencing took off. Find the gene
- 7:43for speed or the gene for endurance. But it's
- 7:45not like that. No. We now understand the biology
- 7:48is far more complex. Many, many genes contribute
- 7:51small effects to athletic traits. And importantly,
- 7:54different combinations of genes, different pathways,
- 7:56can actually lead to similar physical outcomes.
- 7:58OK, so no single magic bullet gene. And crucially,
- 8:02even within groups that might seem predisposed,
- 8:06there's still massive individual variation. The
- 8:09sword shows the example of how people respond
- 8:11to altitude training. Right. When exposed to
- 8:14altitude, some athletes see a big jump in their
- 8:16EPO levels. That's erythropoietin, the hormone
- 8:19stimulating red blood cell production. Good for
- 8:21oxygen transport. Which is what you want for
- 8:23endurance. Exactly. But other athletes exposed
- 8:26to the same altitude, their EPO levels actually
- 8:28declined. Even within potentially talented groups,
- 8:33there's huge biological variation in response
- 8:36to specific challenges like altitude. Precisely.
- 8:39It's described as a complex braid, nature and
- 8:41nurture, genes and environment all woven together.
- 8:44You might have the biological potential, but
- 8:46you absolutely still need the right environment,
- 8:48the coaching, the thousands of hours of focused
- 8:51practice to realize it. And the flip side. The
- 8:53flip side is you can practice incredibly diligently.
- 8:56But your individual biological response to that
- 8:59practice or your fundamental physical attributes
- 9:02might set a different ultimate ceiling for you
- 9:05in a highly specialized sport compared to someone
- 9:08with different inherent characteristics. It really
- 9:10makes you think about how we measure potential,
- 9:12how we predict success, not just in sports, but
- 9:16well, anywhere. Exactly. And that's where the
- 9:18parallels with our orthopedic trauma sources
- 9:21become really quite striking. How so? Because
- 9:23in trauma, you're also dealing with immense variability
- 9:26in patients, in injuries, in responses to treatment.
- 9:30And just like searching for a single athlete
- 9:31gene proved too simple, relying on simple metrics
- 9:34often falls short in complex medical situations
- 9:37too. Ah, OK. So in orthopedic trauma, the challenge
- 9:41is predicting outcomes, making critical decisions,
- 9:44often fast, with incomplete information. The
- 9:47sources mention trauma scoring systems. They
- 9:49do. These systems, like the Injury Severity Score,
- 9:52ISS, or the Revised Trauma Score, RTS, were developed
- 9:55with good intentions trying to objectively quantify
- 9:58how badly someone is hurt to guide treatment.
- 10:01Makes sense. And there are more specific ones,
- 10:03like the mangled extremity severity score or
- 10:06MESS -S. That was developed back in the late
- 10:0980s, early 90s, specifically to help surgeons
- 10:12decide whether to try and save a severely injured
- 10:14limb or if amputation was the better course.
- 10:17Seems like a useful tool. But you said simple
- 10:20metrics fall short. Well, yes. These scores provide
- 10:23valuable data, but relying solely on them has
- 10:26limitations. Research on the IMESA score, for
- 10:29example, found its predictive value for whether
- 10:31limb salvage would succeed was only around 50%.
- 10:35Only 50%. That's basically a coin toss. Pretty
- 10:37much. And perhaps more telling, another study
- 10:40showed that 20 % of patients who did have their
- 10:42limbs successfully saved had MES scores of 7
- 10:45or higher a level originally considered a strong
- 10:47indicator for amputation. So the score alone
- 10:50wasn't the deciding factor. Experts really cautioned
- 10:53against using meds as in isolation for day -to
- 10:55-day decisions now. Why? Because surgical techniques,
- 10:58critical care, our ability to manage infection
- 11:01and promote healing have all advanced significantly.
- 11:04We can now save limbs that might have been deemed
- 11:06unsalvageable based on those older score thresholds.
- 11:09So just like the 10 ,000 hours rule or the athlete
- 11:12gene idea is too simplistic in sport. Exactly.
- 11:15Relying only on an anatomical score like MSS
- 11:18is insufficient in complex trauma. You need much
- 11:22more than just the number. The score is data,
- 11:25but it needs interpretation within a broader
- 11:28context. Precisely the parallel. The expert surgeon
- 11:31integrates that score with countless other factors.
- 11:34Think about injuries to the hip socket acetabular
- 11:37fractures. Surgeons have tried using specific
- 11:39radiographic measurements, the size of bone fragments,
- 11:42angles, things like that, hoping to predict if
- 11:44the hip will be unstable after it heals. They
- 11:47provide some information, sure, but they've only
- 11:49been marginally successful as standalone predictors.
- 11:52Hip stability is complex. It depends on the exact
- 11:55fracture location, the socket's orientation,
- 11:57how well the ball part of the femoral head is
- 11:59covered, whether the hip dislocated initially.
- 12:01That's the variables. Exactly. So ultimately,
- 12:03the gold standard often involves examining the
- 12:06hip stability directly under anesthesia in the
- 12:09operating theater because no single measurement
- 12:11tells the whole story. You need that dynamic
- 12:13assessment. It sounds much less like following
- 12:16a formula. and much more like synthesizing diverse
- 12:20information streams, including real -time feedback
- 12:23in the OR. That's a great way to put it. And
- 12:25the goal isn't just fixing the bone. It's about
- 12:28promoting healing, restoring function long term.
- 12:31This brings in more biological complexity and
- 12:33the nuances of surgical technique. How so? Well,
- 12:36fracture healing isn't just about lining up the
- 12:38pieces perfectly, though anatomical restoration
- 12:41is important. It's also about choosing the right
- 12:43fixation. the plates, screws, rods, and applying
- 12:48it in a way that encourages the right type of
- 12:50healing for that specific fracture and that specific
- 12:53patient's bone quality. There are different types
- 12:55of healing. Broadly, yes. And new technologies
- 12:59in implants like locking screws or dynamic constructs
- 13:02give surgeons more options. They can make the
- 13:04fixation very rigid or allow a tiny bit of controlled
- 13:07movement depending on what's needed biologically
- 13:09at the fracture site. But the source has mentioned
- 13:11these advances can sometimes have downsides too.
- 13:14They can, yes. For instance, if you make the
- 13:17fixation too rigid with some modern locking plates,
- 13:21particularly in certain fracture types, it can
- 13:23sometimes paradoxically slow down or hinder the
- 13:26natural secondary bone healing process, which
- 13:28actually relies on a bit of micro -motion to
- 13:31stimulate the bone -forming cells. Ah, interesting.
- 13:33So it's not just about having the latest gadget.
- 13:35Not at all. It's about the surgeon's deep knowledge.
- 13:38understanding the biology, understanding the
- 13:41technology's capabilities and limitations, and
- 13:44choosing and executing the optimal strategy for
- 13:47that unique biological and mechanical situation.
- 13:50It's highly context dependent decision making.
- 13:53That sounds incredibly complex, very much like
- 13:56an elite athlete. adjusting their race plan based
- 13:59on how their body feels or what competitors are
- 14:01doing. It's expertise far beyond just rote procedure.
- 14:05Absolutely. The orthopedic sources really hammer
- 14:07home the importance of this complex decision
- 14:09making, whether it's planning for mass casualty
- 14:12incidents like the Boston Marathon bombing response
- 14:14or the Haiti earthquake, where resources are
- 14:16suddenly overwhelmed. Right. Extreme circumstances.
- 14:19or even in more routine complex cases like debating
- 14:23the optimal timing for fixing fractures in patients
- 14:26with multiple severe injuries. There are biological
- 14:28windows, physiological considerations. It's rarely
- 14:33straightforward. Even amputation was reframed,
- 14:35wasn't it? Yes. The source made a point of framing
- 14:38amputation not as a failure, but sometimes as
- 14:40a necessary reconstructive procedure. The goal
- 14:43is to create the best possible residual limb
- 14:46to allow for optimal function with a modern prosthesis.
- 14:49It's about maximizing future potential. And recent
- 14:52advances seem to be leaning more into understanding
- 14:55the biology, not just the mechanics. Precisely.
- 14:58Things like targeted muscle re -innovation, TMR,
- 15:01or targeted nerve implantation, TNI. These are
- 15:04fascinating surgical techniques used during or
- 15:06after amputation. What do they do? Essentially,
- 15:08they involve rerouting the severed nerves from
- 15:10the amputated part into nearby remaining muscles.
- 15:13This gives the nerves a new job, a functional
- 15:15purpose. And the benefit. It can significantly
- 15:17reduce phantom limb pain. which can be debilitating.
- 15:21And excitingly, it can also provide clearer signals
- 15:23for controlling advanced mind -controlled prosthetic
- 15:26limbs. Wow, that's really blending biology and
- 15:29technology. It is. It stems from understanding
- 15:32the nervous system's biological response to injury
- 15:34and finding clever ways to harness that response
- 15:37for better function. Again, it's biological insight
- 15:40combined with technical surgical skill. It really
- 15:42does highlight that interplay between the patient's
- 15:45complex biology and the expert's intervention
- 15:48and decision -making. It's definitely not just
- 15:50a mechanical fix. No, it's deeply systems -based.
- 15:54The sources on polytrauma patients with multiple
- 15:56severe injuries stress the need for multidisciplinary
- 16:00teamwork. It's driven by trauma surgery, yes,
- 16:03but needs constant integrated input from neurosurgery,
- 16:06radiology, emergency medicine, anesthesia, critical
- 16:09care, a whole team synthesizing information,
- 16:11and using biological markers to guide decisions.
- 16:14For example, tracking venous lactate levels,
- 16:17basically a measure of oxygen debt in the tissues,
- 16:20helps gauge the patient's overall physiological
- 16:22state and whether they're stable enough for major
- 16:24definitive surgery, a biological reading and
- 16:27forming a critical technical decision. It really
- 16:29is a systems approach, isn't it? Whether it's
- 16:31the athlete's body performing at its limit or
- 16:34the trauma patient's body responding to severe
- 16:36injury, they're both incredibly complex systems.
- 16:39And the outcome depends on so many interacting
- 16:42factors, way beyond simple inputs like hours
- 16:45practiced or fixation method or a single score.
- 16:48Precisely. It boils down to understanding inherent
- 16:52human variability. assessing performance or injury
- 16:55across multiple dimensions, and applying deep
- 16:58expert knowledge to navigate complex, often unpredictable
- 17:01situations. So metrics, tools, training data,
- 17:05genetic profiles, trauma scores, they're valuable.
- 17:08Incredibly valuable, yes. But they are aids to
- 17:11complex decision making, not replacements for
- 17:13it. Expert judgment integrates all these data
- 17:15points with a fundamental understanding of the
- 17:17underlying biology and mechanics. That feels
- 17:19like a really fundamental truth, actually. Something
- 17:21that cuts across high achiev - in almost any
- 17:24complex field. I think so. Whether you're an
- 17:26athlete, a surgeon, a leader, whatever, focusing
- 17:29just on one thing effort alone or supposed innate
- 17:33talent or hitting one particular metric, it just
- 17:37fails to capture the whole story of what leads
- 17:39to truly extraordinary results. So what does
- 17:42this all mean? Well, this deep drive into our
- 17:44sources today, looking at everything from athletic
- 17:47genetics and training science to the complexities
- 17:50of medical assessment and outcomes. It really
- 17:53reveals a crucial insight. I think which is that
- 17:55what makes someone truly extraordinary is Rarely
- 17:59if ever down to just one single factor, right?
- 18:02We've seen that dedicated practice is vital Absolutely
- 18:05essential. But the response to that practice
- 18:07varies enormously, influenced by our individual
- 18:10genetic and biological makeup. And the environment,
- 18:12or the game itself, shapes which traits become
- 18:15advantageous, like a specialized body types in
- 18:17sports, or how different people respond physiologically
- 18:19to altitude. Crucially, simplistic ideas like
- 18:22hunting for a single athlete gene, or relying
- 18:25only on the 10 ,000 hours rule, or using just
- 18:27one anatomical score in trauma, they just fail
- 18:30to capture the full complex picture. So extraordinary
- 18:33performance emerges from this intricate interplay
- 18:36of nature, nurture, and context. Exactly. So
- 18:41as you reflect on talent, training, performance,
- 18:44maybe in your own professional life, perhaps
- 18:46the provocative thought to leave you with is
- 18:48this. Go on. How can you move beyond relying
- 18:51on simple metrics or single explanations? How
- 18:54can you embrace this more nuanced, complex understanding
- 18:57to really unlock potential both in yourself and
- 19:00in others you might lead or mentor? That's a
- 19:02great question to ponder. It challenges us to
- 19:04look deeper. Indeed. And if you found this deep
- 19:06dive valuable today, please do consider taking
- 19:08a moment to rate and share the show. It really
- 19:10helps others find it.