Coaching Research to Results
Sport coaching research holds the answers to your biggest coaching questions, yet most of it stays buried in academic journals written for academics, not coaches like you.
In the Coaching Research to Results podcast, your host, Beth Barz, takes one real research paper and breaks it down into three big ideas and two actions you can apply in your next coaching session, all in under 15 minutes. If you want to coach smarter, not harder, this podcast is for you.
Check for show notes & further info on becoming a thriving coach here: https://thecoachdeveloper.com/coaching-research-to-results-podcast-notes/
Coaching Research to Results
The Environment Is the Lesson Plan
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What if the equipment, space, and rules you choose for practice are teaching your athletes just as much as your instructions are? In this episode of Coaching Research To Results, your host explores a foundational paper on the constraints-led approach to skill acquisition in sport, unpacking how individual, task, and environmental constraints shape the way athletes learn to move.
Coaches across every sport who want to understand ecological dynamics, motor learning theory, and practical constraint manipulation for better skill transfer will find plenty to take into their next session. As always, expect one research paper, three sticky ideas, and two actions for tomorrow, delivered in under fifteen minutes. Listen in to find out what your practice environment might really be teaching, and whether it matches what you intend.
https://thecoachdeveloper.com/coaching-research-to-results-podcast-notes/
You know the drill. Literally the drill. You practice the ball toss, you practice the run-up, you practice the footwork. Then, and only then, put it all together. It's coaching 101, and most of us learned it from someone who learned it from someone else. Break the complex skill down, build it back up, check. Well, here's the problem. Research into how athletes actually acquire skills says that breaking a skill apart does not just simplify learning. It can actively damage it. Because what you strip away when you separate the components is not the complexity, it's the connection. And the connection of the skill is the whole point. This week's paper is going to make you think very differently about what your practice environment is telling your athletes. And the good news? The solution is simpler than you think. Welcome to Coaching Research to Results. I'm Beth Barts, the coach developer. This is one paper, three ideas, and two actions for tomorrow in under 15 minutes. This is the podcast where coaching research gets off the shelf, out of your notes, and into your practice. Let's go. The paper is called Acquiring Skill in Sport: A Constraints Led Perspective. It was published in the International Journal of Computer Science and Sport in 2003. The lead author is Keith Davids, who was at the School of Physical Education at the University of Otago in New Zealand at the time, and who has become one of the most cited researchers in what is now called ecological dynamics and constraints-led coaching. His co-authors are Duarte Arujo, Richard Shuttleworth, and Chris Button, who were all also from Otago at the time. The paper is a theoretical review, which means it synthesizes a whole bunch of related papers to build a practical argument. What prompted it was the growing body of work applying complexity science and nonlinear dynamics to sport. Davidson colleagues wanted to translate those ideas into something coaches could actually use. They set out to do three things explain the theoretical framework, review key constraints on skill development, and draw practical implications for how coaches should structure feedback and practice. What they produced is essentially a blueprint for a different kind of coaching. The big idea from the paper could be called the environment is the lesson plan. Here's the core of it. Skill does not develop because a coach prescribes a technique and an athlete copies it. Skill emerges from the interaction of three different categories of constraints. Individual constraints are things within the athlete. Their height, their strength, their current skill level, their age, their fatigue. Task constraints come from the activity itself, the rules, the goal, the size of the ball, the number of opponents, the time available. Environmental constraints come from the surrounding context, the surface, the weather, the noise, the crowd, the temperature. These three don't work in isolation. They interact constantly, and the movement pattern that emerges from that interaction is the learner's best available solution to all of them at once. The coordination pattern is not stored in the brain and retrieved. Instead, that ideal movement pattern assembles itself under constraint every time. What does that mean for you? It means the practice environment you design is not just a backdrop for learning. The environment itself is an active and highly influential participant in learning. Every time you change the field size, the number of players, the ball, the rules, or the time pressure, any number of constraints, you've just changed what's being learned. The question is, are you changing with intent? Your athletes are not simply learning from your instructions, they're learning from the environment you put them in. The instructions are optional, the environment is not. The idea here is summarized as right tool for right size. The paper highlights research on a ball called the Futbol de Saleo or FTS, a smaller, denser ball used in futsal and widely used in Brazilian football development. In this research, an 11-year-old group of beginner soccer players was split in two. One group trained with the FTS ball, the other trained with a standard size 5 ball. After the training period, both groups were tested on juggling with a conventional size 5 ball. The FDS group outperformed the control group significantly. Why? Because the smaller, heavier ball directed the learners toward the kind of sensory information, the feel through the foot, the haptic and proprioceptive feedback that is relevant for building solid coordination patterns. The standard adult ball was too big and too light to generate that quality of information for a developing nervous system. The broader implication is pointed. Children are not mini adults. And equipment designed for adults, handed to children without modification, is not neutral. It actively changes what can be learned and how quickly. The constraint ends out being wrong, so the learning environment is suboptimal. Think about your sport. Are there pieces of equipment you hand to young or developing athletes because that's what's available? Are you accidentally setting a task constraint that works against skill development rather than for it? Remember, the constraint isn't just the background, it's actively doing the teaching. Now we'll look into practice structure and to what I think is the most practically disruptive idea in this paper. Idea number three is to keep the wiring intact. Coaches commonly break complex skills apart. The volleyball player practices the ball toss separately before practicing the serve. The long jumper practices the run-up without the jump. The logic is reduce the attentional load, master the components, and then combine them. This approach has a name in the research literature. It's called task decomposition. The paper argues that this is a mistake in most cases, and the neuroscience backs it up. The brain has two visual pathways. One identifies objects, the other guides actions directed at those objects. When you practice the volleyball toss without the strike, you're training one pathway without the other. You're literally cutting the wiring between perception and action. The skill you want your athletes to learn depends on that wire being intact and strengthened. The alternative the paper proposes is task simplification. Keep the whole skill together but reduce its scale or intensity. A shorter run-up, lower ball toss, slower speed, smaller space. The movement stays whole. The connection between seeing and doing stays connected. You're reducing the amplitude, not amputating the connection. Ask yourself, are there skills in your program where you decompose because it feels more manageable? Where could you instead simplify the whole rather than isolate the parts? That shift in approach is the difference between building the bridge and taking it apart to steady the cables. Now, let's complicate the picture a little because that's how we review good research. The constraint slowed approach makes a compelling case, but it's not universally settled. Richard McGill, whose motor learning textbook is cited in this very paper, has argued that part task practice retains its value in specific circumstances, particularly when the subtasks are low in coupling, meaning that they can legitimately be performed independently without degrading learning of the whole. In serial skills, like a swimming stroke, where timing between subcomponents is less critical in the early stages, task decomposition may still have a place. In this case, something like separating the upper body movement from the lower body movement in a swimming stroke may work out okay. There's also a practical reality the paper acknowledges only briefly. Discovery learning takes time. In high performance or time-constrained environments, the freedom to explore the task landscape is a luxury. Coaches working in short preseason windows or with large groups may find that a fully open, constraint manipulation approach is difficult to implement without very deliberate planning and resourcing. The counterpoint, in short, is not that the constraints led approach is wrong. It is that it demands more from the coach in terms of design thinking, not less. You can't just remove the drill and walk away. You have to thoughtfully design the constraint, and sometimes that means that you'll get it wrong. This story illustrates the environment is the lesson plan idea. A hockey coach I worked with ran what they thought was a great possession drill. Lots of snappy passes, tons of touches, accurate passing, and overall the athletes looked pretty confident moving the puck. It hit all the meaningful key performance indicators of what they wanted to accomplish come game time. But in the next match, the same players really struggled to retain possession under pressure. On closer inspection and reflection, the drill the coach had used had fewer opponents, no time pressure, and a generous space ratio. The environment of the drill had taught something real, yet it wasn't possession under pressure, which was the outcome the coach intended to train so they could compete with a solid opponent. When the coach redesigned the drill with smaller spaces and a larger number of defenders, the transfer to the game was immediate. The environment mimicked what the athletes would see in a game from this opponent, which was overloading an area with defenders to try and force a turnover. In this case, the athletes in possession of the puck just needed to keep possession, even with more defenders in a small area. This forced anticipatory and faster movement overall, which could then transfer into the next game. What the coach learned. The drill was not teaching what they thought it was teaching, because the constraints did not match the game. Putting this into action, this week I want you to audit one of your regular drills or practice activities through the lens of the three constraints. Take a drill you run often and ask three questions. First, what individual constraints does this activity assume? Is it designed for the actual athletes in front of you at their current size, strength, and skill level? Or is it designed for an idealized version of them? Second, what task constraints does this activity include, and what does it leave out? Is the ball the right size and weight? Are the rules preserving the connections between the perception and movement, or are they isolating components? Third, what environmental constraints are present? And are they representative of the performance context? Is there time pressure, opposition, or spatial demand? You don't need to change anything yet. The first action is simply to see the environment through this lens. Write down what you notice. Then ask, if this environment is doing the teaching, what exactly is it teaching? You might be surprised by your own answer. If you find a mismatch between what you intended and what the environment is actually delivering, you've just found your next design problem to solve. And action two, the next time you're planning a session to introduce or develop a complex skill, design it using task simplification rather than task decomposition. Here's the practical test. Write the skill down as a whole action. Then ask, what's the minimum I can reduce, slow, or shrink to make this manageable for my athletes while keeping the perception movement connection intact. That might be a shorter run-up, a slower approach, a reduced space, a lighter implement, or a simplified decision. The rule here is everything that needs to be connected in the game stays connected in practice. If you find yourself instinctively wanting to break out one component and to practice it separately, stop and ask, what's the information source that connects this component to the rest of the skill? If you can identify it, build the practice around preserving that connection. If you genuinely cannot identify a coupling, that's the one scenario where separation might be warranted. But in most sports skills, the coupling is there. Keep the wire connected. So here's what we know from this paper. The environment you design is not just a container for practice. It is the teacher. Constraints from three directions, from within your athletes, from the task itself, and from the environment surrounding them, interact to shape what movement patterns emerge. Skill is not installed by instruction, it's assembled under constraint. When you choose an implement, like a ball, that's the wrong size for your athlete, you're choosing a constraint that works against learning. When you break a complex skill into isolated components, you risk cutting the very connection between seeing and doing that skilled performance depends on. The nugget I want you to carry with you this week is this. Your job is not to prescribe the movement. Your job is to design the environment that makes the right movement the most likely solution. Get the constraints right, and your athletes will find the skill themselves. I'm Beth Barts, the Coach Developer. You'll find show notes and the full library of episodes at www.thecoachdeveloper.com. If any idea from today lands for you, like, subscribe, and share it with another coach this week. That's how research actually travels. See you next time. This podcast was produced by Anne Reifenstein at RECETA sources. Original music created and recorded by Sean Patterson and Final Safari Studio.
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