Motor learning

You may have said, "I've got the feel for it" or "It's second nature now." Motor learning research looks at these moments as two different things.

Performance is the quality of movement you can observe right now. It rises and falls depending on how you feel, fatigue, and cues from a coach. Learning is the change that stays with you days or weeks later, after those cues are gone. Researchers assess learning using retention tests, in which you try again after a period of rest, and transfer tests, in which you perform under different conditions (Retention and transfer tests).

An interesting observation is that conditions that make practice slightly harder can reduce temporary performance during practice yet increase the learning that lasts afterward. These are called "desirable difficulties." Struggling a little during practice does not necessarily mean something is going wrong; it may be a sign that you are moving toward more lasting learning.

This classic model describes skill acquisition as progressing through three stages. Proposed by Fitts and Posner (1967), it has long served as a guide in education and rehabilitation.

• Cognitive stage: Movements are slow and inconsistent, and you have to keep thinking about "what to do and how to do it." It is like your first day behind the wheel.
• Associative stage: Errors decrease and consistency improves. You begin to sense what needs correcting, but some conscious attention is still necessary. It is like having driven for a few months.
• Autonomous stage: You perform accurately and consistently, almost automatically. It is like driving a familiar route while thinking about something else.

The model explains that early on, you rely heavily on frontal brain regions involved in thinking, but as practice accumulates, control gradually shifts toward greater automaticity. The stages blend smoothly rather than having sharp boundaries. Taking a break from practice may also move you a little toward an earlier stage. "It still feels awkward" is not a failure but a natural feature of the cognitive stage, so you can welcome that awkwardness as a positive sign.

Motor learning occurs in relation to the tasks and situations you practice. What improves is not so much a vague general ability as the very movement you actually practiced. This is because the brain and spinal cord strengthen frequently used circuits.

So if you have practiced balance only on an unstable balance board, it is helpful to practice everyday movements such as walking or climbing stairs separately, in those actual situations. The more closely the practice environment resembles the target movement, the better the learning tends to carry over to real-life performance. How close the resemblance needs to be varies with the task and the person.

Even with the same amount of practice time, how you organize it changes how much stays with you.

Mixing up practice (contextual interference). When learning several movements, you can repeat one movement in a block (blocked practice) or mix movements and alternate between them (random practice). Blocked practice feels as though you are doing better during the session. However, a classic experiment (Shea & Morgan, 1979) found better recall later among those who mixed their practice. The explanation is that the effort of retrieving the plan again each time the movement changes creates a stronger memory. The effect may be smaller for beginners or very complex movements, so it can help to begin with blocked practice and gradually mix things up. Read more in Contextual interference.

Spacing out practice (distributed practice). For the same total practice time, dividing practice into sessions with rest in between often leads to longer-lasting learning than doing it all at once without a break. This is because memories stabilize during rest and sleep. Practicing for 20 minutes every day may be better than doing 2 hours all at once on the weekend (Distributed and massed practice).

Changing the conditions (variable practice). Practicing at different speeds, in different directions, and over different distances helps you respond better to unfamiliar situations than always practicing under the same conditions. Schema theory explains this as forming general rules such as "this much force for this kind of situation," rather than memorizing an entire movement.

What you think about while moving also affects the results. Focusing on parts of your own body is called an internal focus, while focusing on the effects of your movement or on objects around you is called an external focus. For example, "Straighten your elbow" directs an internal focus, whereas "Send the ball toward that target" directs an external focus.

According to a review by Wulf (2013) covering more than 15 years of research, an external focus reduces errors, speeds up responses, and makes movement more automatic across a variety of skills and balance tasks. The explanation is that focusing on body parts brings conscious interference into control processes that normally operate automatically, whereas an external focus allows the body to organize itself (the constrained action hypothesis). During exercise, saying "Imagine sitting down in a chair" rather than "Push your hips back" creates an external focus. The approach that works best varies somewhat with skill level. For details, see External focus of attention.

Give feedback less immediately, and let learners sense things for themselves. Immediate feedback after every attempt improves practice performance but reduces opportunities to develop the ability to recognize errors independently (the guidance hypothesis). Findings therefore suggest that feedback given only once every few attempts, in a batch after several attempts, or when the learner requests it can lead to longer-lasting learning.

Neuroplasticity is the nervous system's ability to change its structure and function in response to experience and practice. It underlies both learning new movements and relearning after injury. The 10 principles of experience-dependent plasticity outlined by Kleim and Jones (2008) are a widely used reference framework in rehabilitation and motor learning.

• Without use, abilities weaken (use it or lose it); with use, they improve (use it and improve it).
• The nature of training determines the nature of plasticity (specificity).
• Practice needs sufficient repetition (repetition) and sufficient intensity (intensity).
• Changes occur differently at different times (time).
• Meaningful experiences are more likely to produce change (salience).
• One type of learning may help similar learning (transference) or interfere with it (interference).

The original paper addressed rehabilitation after brain injury, but its broad framework—that change requires repetition, intensity, specificity, and meaning—is also widely used as a reference for movement learning in healthy people. The specific numbers for how many repetitions or how much intensity are needed vary by task. Read more in Neuroplasticity.

Taken together, motor learning principles suggest that posture and movement habits are patterns that have become automatic through frequent repetition over a long period. Rather than misaligned bones or fixed defects, they are "paths that have become comfortable through frequent use." Repeatedly adopting a particular posture strengthens the circuits for that pattern. It becomes an automatic pattern that emerges without conscious thought (the autonomous stage), making that posture feel comfortable.

How, then, do you create a new pattern? The process requires sufficient, specific repetition of the desired movement, natural guidance through an external focus, practice in a range of situations, less feedback so you can sense things for yourself, and time for the pattern to consolidate. Existing habits may intrude as you learn a new pattern, so take it slowly even if it feels uncomfortable at first. Viewing postures as "frequently used patterns" and "less frequently used patterns," rather than dividing them into "normal" and "abnormal," is closer to how the body actually changes. That is why "relearning" is a more fitting term than "correction."

Scaffolding is an approach to learning design in which help, cues, and easier conditions are provided when learning a new movement, then gradually withdrawn as proficiency improves. The name comes from the scaffolds used in building construction. Originally a term from education, it is also used in motor learning and movement re-education.

For example, when learning a squat, you might start by sitting down in a chair and standing up, then gradually withdraw support by progressing to a low box, a bodyweight squat, and lifting weights. Practicing with a mirror and later trying without it follows the same approach. You can move to the next stage once the current one feels comfortable.

"Habit and posture relearning," "movement relearning," and "movement re-education" are expressions used interchangeably in Korea, corresponding to the English terms movement re-learning and movement re-education. They refer to the same thing. While motor learning is a broad term for the entire academic field, these are practical terms used when applying its principles to adults' established posture and movement habits. This is also where Somatics intersects with hands-on and exercise-based care.

When practitioners in hands-on care or somatic fields use the term relearning, they understand hands-on techniques as changing sensory input to create an opportunity to try a new movement. Rather than changing the shape of tissues by hand, the focus is on experiencing a comfortable new movement at that moment of altered sensation, then repeating it until it becomes familiar. The "awareness" emphasized in the Feldenkrais Method and Alexander Technique likewise reflects the view that directly experiencing new options through sensation is the starting point for learning.

The pace of relearning differs from person to person. The principles of plasticity tell us only that sufficient repetition, appropriate intensity, time, and meaning are needed; there is no fixed timetable such as "it will change in a few weeks." Rather than rushing, a little comfortable repetition every day is therefore the more lasting approach.

• Rather than judging how smooth a movement feels immediately after practice, check whether you can still do it the next day and the next week.
• Try short, frequent sessions rather than long stretches of practice all at once.
• Feeling awkward is normal. Try focusing on an outcome or an object rather than a body part.
• Start with support (a mirror, a support structure, or easier conditions), then remove it one element at a time as you become comfortable.
• Rather than repeating only the same movement, make small changes to the speed, direction, and situation.