Short answer
When designing products or assistive devices for users who may wear wrist-hand orthoses, prioritize designs that accommodate potential restrictions in wrist mobility and allow for adaptable grip strategies.
- Field
- Human Factors
- Source
- Academic Publication (2013)
- Method
- Experimental study
- Sample
- Not explicitly stated, but implies multiple participants over a ten-week period.
- Evidence
- Moderate effect
Prefabricated wrist-hand orthoses, while intended to manage wrist dysfunction, can negatively impact the performance of daily activities by restricting necessary grip patterns and altering joint motion, potentially leading to increased task completion times. This human factors research insight is drawn from a 2013 study published in Academic Publication. Using Experimental study with Not explicitly stated, but implies multiple participants over a ten-week period., researchers explored how this design variable affects real-world outcomes. The key design takeaway: When designing products or assistive devices for users who may wear wrist-hand orthoses, prioritize designs that accommodate potential restrictions in wrist mobility and allow for adaptable grip strategies.
Wrist-hand orthoses can impede daily activities by altering grip and motion
Prefabricated wrist-hand orthoses, while intended to manage wrist dysfunction, can negatively impact the performance of daily activities by restricting necessary grip patterns and altering joint motion, potentially leading to increased task completion times.
Academic Publication · 2013
Key Findings
- 01Orthoses may restrict motion, but participants often do not utilize the full permitted range of motion.
- 02The altered wrist position observed during task performance may be due to modified task execution or grip patterns.
- 03Task performance time can increase when using orthoses.
- 04The effect of orthoses on ADLs is task-specific and can initially impede function.
- 05Orthotic effects may be related to motion restriction or inability to achieve necessary grip patterns.
Application
Design takeaway
When designing products or assistive devices for users who may wear wrist-hand orthoses, prioritize designs that accommodate potential restrictions in wrist mobility and allow for adaptable grip strategies.
How to apply
During user testing of new products, consider observing how participants with and without common assistive devices perform tasks, paying attention to grip, reach, and time taken.
Project actions
- 01When researching user needs, consider if potential users might be using assistive devices that could affect their interaction with your product.
- 02If your design involves gripping or manipulation, think about how different hand/wrist positions might impact usability.
Method & Evidence
Variables
Strengths & Limitations
Strengths
- +Investigated the impact of multiple orthoses.
- +Measured objective outcomes like time and joint motion.
Limitations
The study was conducted on healthy individuals, so the results might differ for people experiencing pain or significant functional loss due to their condition.
Reliability & validity
The use of objective measurements (time, goniometry) enhances the reliability and validity of the findings regarding task performance and joint motion. However, the study's reliance on healthy subjects limits its external validity to clinical populations.
Think critically
How might the design of the orthosis itself (e.g., material stiffness, specific joint articulation) influence its impact on ADL performance, and how could this be investigated further?
Design Principles
"Design for adaptable grip and motion to accommodate assistive devices."
For designers creating assistive devices or products for individuals with hand impairments, understanding how orthotic interventions affect fundamental user interactions is crucial. This research highlights the need to consider the biomechanical implications of orthoses on grip strength, range of motion, and overall task efficiency to ensure that assistive technologies genuinely enhance, rather than hinder, user independence.
What This Means for Your Design
Wearing braces for your wrist and hand can sometimes make it harder to do everyday things like opening jars or writing, because the brace changes how you have to grip and move.
How to use in your project
- 1.Reference this study when discussing the challenges users with hand or wrist impairments might face, especially if they use orthoses.
- 2.Use the findings to justify design choices aimed at improving grip or accommodating limited wrist motion.
Add to My Project
Quick Cite
Paragraph starter
Research indicates that prefabricated wrist-hand orthoses, while intended to support function, can paradoxically impede the performance of daily activities by altering grip patterns and restricting necessary joint motion, potentially increasing task completion times. This suggests that designers of products intended for individuals who may use such orthoses should prioritize adaptable grip mechanisms and consider the biomechanical implications of restricted wrist mobility.
Source
Academic Publication
The effect of prefabricated wrist-hand orthoses on performing activities of daily living
journal · 2013
View sourceQuestions About This Research
- What does the research say about wrist-hand orthoses can impede daily activities by altering grip and motion?
- When designing products or assistive devices for users who may wear wrist-hand orthoses, prioritize designs that accommodate potential restrictions in wrist mobility and allow for adaptable grip strategies. Evidence: Academic Publication (2013).
- Why does "Wrist-hand orthoses can impede daily activities by altering grip and motion" matter for design?
- For designers creating assistive devices or products for individuals with hand impairments, understanding how orthotic interventions affect fundamental user interactions is crucial. This research highlights the need to consider the biomechanical implications of orthoses on grip strength, range of motion, and overall task efficiency to ensure that assistive technologies genuinely enhance, rather than hinder, user independence.
- How can designers apply this research?
- When designing products or assistive devices for users who may wear wrist-hand orthoses, prioritize designs that accommodate potential restrictions in wrist mobility and allow for adaptable grip strategies.
- What were the main findings?
- Orthoses may restrict motion, but participants often do not utilize the full permitted range of motion.. The altered wrist position observed during task performance may be due to modified task execution or grip patterns.. Task performance time can increase when using orthoses.. The effect of orthoses on ADLs is task-specific and can initially impede function.
- What research method was used?
- Experimental study with Not explicitly stated, but implies multiple participants over a ten-week period..
- How strong is the evidence?
- Evidence strength is rated Moderate effect, based on a 2013 journal from Academic Publication.
- What should I do differently in my next project?
- During user testing of new products, consider observing how participants with and without common assistive devices perform tasks, paying attention to grip, reach, and time taken.
- What are the limitations?
- The study used healthy subjects, so pain and fatigue associated with rheumatoid changes were absent as confounding factors. The study focused on a limited set of ADLs and orthoses.