Blocked Practice Method and Its Impact on Motor Learning Skills

Defining the Repetitive Drill: What Is Blocked Practice?

In the world of motor learning, blocked practice refers to a training structure where a learner performs a single task over and over again before moving on to the next. Imagine a tennis player hitting fifty backhands, then fifty forehands, then fifty volleys. Or a student practicing their handwriting by writing the letter ‘A’ for an entire page before moving to ‘B’. It is the ultimate form of repetition, and it is how most of us were taught to learn.

Developing a new motor skill often mirrors the hurdles we see, where the initial struggle is actually a sign that the brain is working. When you use a blocked schedule, you are essentially minimizing the challenge. You are telling your brain exactly what to do, and then you are doing it again and again.

Here is the weird part. Because you are practicing the same skill without any variation, your short-term memory is doing all the heavy lifting. You do not have to “solve” the problem of the movement every time because the solution is still fresh in your mind from the previous rep. This leads to what researchers call “rapid skill acquisition,” but don’t let that fool you. Just because you can do it ten times in a row now does not mean you can do it tomorrow.

The Battle of Blocked Practice vs Random Practice

If blocked practice is the comfortable, repetitive path, then random practice is the rocky, unpredictable trail. In a randomized practice session, the learner never performs the same task on two consecutive trials. Instead, they might switch from a golf swing with a 7-iron to a putt, then to a drive with a wood, and then back to the iron. The order is constantly shifting, which keeps the learner on their toes.

If you are looking for controversial science topics to write about, the battle between blocked and random practice is a classic in the world of kinesiology. Coaches often prefer the blocked vs random approach because blocked practice leads to cleaner-looking practices. A coach sees a player hitting every shot and thinks, “Great, they are learning!” But research shows that random practice would actually lead to better performance in game situations, even if the practice session itself looks messy and full of mistakes.

This is known as the contextual interference effect. When you randomize your drills, you create interference between the different tasks. This interference forces your brain to work harder to distinguish between the different movements. It feels harder, and your performance will likely be worse during the drill itself, but the long-term retention and transfer of that skill are significantly higher.

The Shea and Morgan (1979) Experiment

To see how this works in a lab, we have to look back at the landmark study by Shea and Morgan. They set up an experiment where participants had to perform a series of rapid movements in response to a light stimulus. One group used a blocked schedule (practicing one pattern of movement multiple times before switching), while the other group used a random order.

As you might expect, the blocked practice group performed much better during the initial training sessions. They were faster and made fewer errors. However, when the researchers brought everyone back for a retention test a few days later, the results flipped. The random practice group, which had struggled during the initial learning, now outperformed the blocked group.

So yeah, the group that felt like they were failing during practice actually learned more. Shea and Morgan suggested that the random group had to process the information more deeply. Because they couldn’t just rely on their immediate memory of the last movement, they had to rebuild the motor program from scratch every single time. This constant rebuilding is what makes the memory stick.

Why Learning Is Poor When You Repeat the Same Task

It sounds counterintuitive, right? How can repeating something make you worse at it in the long run? Not because repetition is inherently bad. Because mindless repetition allows the brain to go on autopilot. When you are practicing the same skill for the twentieth time in a row, your perception of the task changes. You stop looking for the tiny cues that tell you how to adjust your body because you already know what the next rep requires.

This psychological comfort is why many people who are overcoming fear my journey to swim with confidence prefer repeating the same stroke over and over, even if it doesn’t help them in a wavy ocean. In real life, the environment is never constant. A golfer on a driving range, hitting the same bucket of balls, is not preparing for a real round of golf. On the course, every lie is different, every wind direction is different, and you never hit the same club twice in a row.

When we use massed practice—shoving all our reps into one big block—we are essentially cramming. Just like cramming for a history test, the information stays in our head long enough to pass the “test” of the practice session, but it doesn’t integrate into our long-term motor skills. Once you step away and go check your email or take a nap, the brain hasn’t done enough “deep work” to keep that movement pattern accessible under pressure.

Schmidt’s Schema Theory and Variability

Richard Schmidt is another huge name you need to know if you are writing about motor learning. He proposed the Schema Theory, which basically says that when we learn a movement, we aren’t just learning one specific action. Instead, we are learning a set of rules (a schema) that allows us to perform that movement in a variety of conditions.

Variable practice is the key here. Instead of just doing the same blocked practice where the goal is a perfectly identical repetition, you introduce variability. If you are practicing a basketball free throw, you might stand six inches to the left, then six inches to the right, then use a slightly heavier ball.

This variety forces the learner’s brain to develop a more robust schema. You aren’t just learning “how to shoot a free throw”; you are learning “how to adjust my shot based on where I am standing.” This makes the skill much more useful in real game situations where you are rarely in the exact same spot twice.

Applications in Occupational Therapy and Physical Rehabilitation

Blocked practice isn’t just for athletes. It is a huge part of how an occupational therapist might help a patient relearn how to use their arm after a stroke or how a child might learn basic walking skills. Early childhood educators often look at how socio-emotional development impacts how a kid handles the frustration of failing at a new physical task.

In these clinical settings, practitioners often use practice groups to test different schedules. For a patient who is very low-functioning, a blocked schedule might be necessary at first. If they can’t even lift their hand, asking them to randomize between five different tasks would be overwhelming and discouraging. In this case, repetition is a tool to build basic confidence and initial coordination.

However, the goal is always to move toward a randomized practice group as soon as possible. An occupational therapist knows that if a patient only practices picking up a cup in a sterile clinic room, they might fail when they get home and have to pick up a glass, a remote, or a toothbrush in a cluttered kitchen. Generalization is the goal, and generalization requires variability.

Practical Ways to Interleave Your Training Sessions

So, how do you actually apply this if you aren’t a lab researcher? It is about learning to interleave. Interleaving is just a fancy word for mixing things up. Instead of doing A-A-A-B-B-B-C-C-C (blocked), you do A-B-C-B-A-C (random). Here is how you can use it in different areas:

• In the gym: Instead of doing three sets of ten bicep curls and then moving to triceps, alternate one set of curls with one set of triceps and one set of shoulder presses.
• In sports: If you are practicing tennis, have a partner feed you a random mix of forehands, backhands, and lobs rather than one bucket of each.
• In academics: If you are studying for a math test, don’t just do twenty multiplication problems. Mix in division, word problems, and some geometry so your brain has to constantly identify which “rule” to apply.
• In music: Don’t just play the same scale for twenty minutes. Play a scale, then a bar of your piece, then a different scale, then a chord progression.

It is going to feel slower. You are going to feel like you are struggling more. But that struggle is literally the feeling of your brain building stronger neural connections. It is the sound of the skill actually being learned rather than just performed.

The Role of Perception and Stimulus in Skill Acquisition

Every time we perform a motor skill, we are responding to a stimulus. In a blocked practice session, the stimulus becomes predictable. You know the ball is coming to your backhand, so you pre-set your feet and your grip. You have bypassed the perception-action cycle because you already know what the action needs to be.

In a random practice schedule, you have to actively perceive the situation before you can act. You have to look at the incoming ball, realize it’s a lob, and then choose the overhead smash response. This strengthens the link between what you see and what you do.

Research by Wulf and Pauwels has shown that focusing on the external effects of a movement (the ball going into the hoop) rather than the internal mechanics (how your elbow is tucked) further enhances this effect. When you combine an external focus with randomized practice, you become much better under pressure because you have trained your brain to solve problems in real-time.

Assessing the Research: B-R and R-R Groups

In advanced studies of the contextual interference effect, researchers often compare different sequences, like B-R (blocked then random) and R-R (random then random). The B-R group often shows that starting with a blocked schedule to get the “hang of it” and then switching to a random schedule can be a powerful way to bridge the gap between initial learning and long-term retention.

However, some research suggests that if you stay in the blocked phase too long, you develop bad habits. You become reliant on the lack of interference. This is why many modern coaches are introducing new drills that simulate game situations from day one. They would rather have a player struggle with a randomized practice than look like a superstar on the driving range but fail on the first tee.

Let me be honest: humans are lazy by nature. We like feeling successful. Blocked practice gives us that hit of dopamine because we see progress quickly. But if your goal is actual skill acquisition that stays with you when you leave the practice session, you have to embrace the messiness of variability. It is the difference between being a “practice player” and being a closer when the game is on the line.

In the end, the way you practice is just as important as the amount of practice you do. You can spend ten thousand hours doing blocked practice, but if you are just mindlessly repeating the same motion without any variability, you are probably just getting really good at practicing, not really good at the skill itself.

Real learning happens when you challenge your brain to solve the same problem in different ways. It happens when you force yourself to switch between tasks and rebuild your movement patterns from scratch. It is hard, it is annoying, and it makes you feel like you are failing in the moment. But that is exactly what your brain needs to make the skill permanent.

So next time you head out to the court, the field, or even just your desk, try to randomize things. Throw in a different club, try a different angle, or mix up your study subjects. Your future self—the one who has to perform when it actually counts—will thank you for it. Blocked practice might be the easy way out, but the hard way is the only way that actually lasts.