305- Journal Club #16: What are “normal movements” in atypical populations?

TL;DR

Atypical movements may be functional adaptations, not flaws.

Transcript

today on the perception and action podcast perception and action Journal Club number 16 re typical movements associated with impairments like Parkinson's disease and Down syndrome flaws that need to be corrected or are they functional adaptations to changes in constraints what can we learn from this that applies to sports so it's time for a call to... Read More

Key Insights

• Atypical motor patterns in impaired populations could be functional adaptations rather than abnormalities, reflecting the CNS's flexibility.
• Therapists often try to correct atypical movements to align with normal patterns, potentially overlooking their adaptive nature.
• The concept of 'normal' movements is often based on averages and may not account for individual variations or adaptations.
• Priorities in motor control can differ significantly in impaired populations, affecting how movements are executed.
• Constraints in motor control are typically task-related, but priorities like energy efficiency or injury avoidance may also play a role.
• In sports, the understanding of normal movements can evolve over time and may not always align with the best performance strategies.
• Instructions and feedback can significantly influence motor performance, especially in populations with impairments.
• Rehabilitation goals should focus on functionalizing movements rather than normalizing them, considering both performance and social factors.

Questions & Answers

Q: What is the central thesis of the discussed article?

The central thesis of the article is that atypical motor patterns in impaired populations should not be seen as abnormalities. Instead, they should be viewed as reflections of the central nervous system's flexibility and the body's redundancies when the movement system is disturbed or impaired.

Q: How does the article define 'normal' movements?

The article suggests that 'normal' movements are often defined based on regularities and averages observed in healthy individuals. However, this definition may not adequately account for individual variations or the adaptive nature of movements in atypical populations.

Q: What role do priorities play in motor control according to the discussion?

Priorities in motor control can significantly influence how movements are executed, especially in impaired populations. These priorities may include performance goals, energy efficiency, or injury avoidance, and they can shift based on individual constraints and conditions.

Q: How might the understanding of normal movements apply to sports?

In sports, the understanding of normal movements can evolve over time and may not always align with optimal performance strategies. Movements considered normal can change with trends, and athletes may develop unique patterns that better suit their performance needs.

Q: What is the podcast's stance on rehabilitation goals?

The podcast advocates for focusing on functionalizing movements rather than normalizing them in rehabilitation. This approach considers both performance and social factors, recognizing that atypical movements may be adaptive and functional for the individual.

Q: How do instructions and feedback influence motor performance?

Instructions and feedback can have a significant impact on motor performance, particularly in populations with impairments. Clear and appropriate instructions can help individuals optimize their movements and adapt to their constraints effectively.

Q: Why might therapists attempt to correct atypical movements?

Therapists may attempt to correct atypical movements to align with what is considered normal, potentially overlooking their adaptive nature. This approach assumes that returning to normal patterns will restore function, but it may not always be the best strategy for the individual.

Q: What challenges exist in studying atypical movements?

Studying atypical movements presents challenges due to the complex interplay of constraints, priorities, and individual variations. Researchers must consider multiple factors, including cognitive and motor deficits, and the potential for movements to be adaptive responses to these conditions.

Summary & Key Takeaways

• The podcast discusses whether atypical movements in impaired populations are functional adaptations rather than flaws. It explores the idea that these movements reflect the flexibility of the central nervous system and questions the role of therapists in correcting them.

• The concept of 'normal' movements is examined, emphasizing that it is often based on averages and may not account for individual variations. The discussion also highlights the importance of understanding priorities in motor control, which can differ in impaired populations.

• The implications of these ideas for sports are considered, suggesting that what is deemed 'normal' can change over time and may not always align with optimal performance. The podcast concludes by advocating for a focus on functionalizing movements in rehabilitation.