What does the term motor abundance refer to?

Motor abundance refers to the concept that there are a variety of potential movement solutions available for a given task, allowing for flexibility in how a movement is executed. This term encapsulates the idea that the human motor system is capable of selecting from a broad range of available options to achieve the same end goal.

The essence of motor abundance emphasizes the adaptability of movement strategies, enabling individuals to optimize their performance based on current conditions or specific constraints. For example, when reaching for an object, a person can use different joint angles, postural adjustments, or muscular activations—all of which are valid movement solutions. This adaptability can be particularly crucial in rehabilitation settings, where individuals may need to find new ways to perform movements due to impairments or changes in their physical condition.

In contrast, limited motor options, excessive use of a single motor solution, and inconsistent movement patterns do not capture the flexibility and variety inherent in motor abundance. Instead, these concepts might imply rigidity or a lack of adaptability in movement strategies, which is counter to the principles underlying motor abundance.