Short answer

Incorporate natural, unobstructed pathways and avoid artificial thresholds like doorframes in environments for individuals with Parkinson's disease to prevent freezing of gait.

Field
Human Factors
Source
International Journal of Environmental Research and Public Health (2015)
Method
Multi-method single-subject study
Sample
5 participants
Evidence
Strong effect

Removing artificial barriers and incorporating natural elements in architectural thresholds can eliminate freezing of gait episodes for individuals with Parkinson's disease. This human factors research insight is drawn from a 2015 study published in International Journal of Environmental Research and Public Health. Using Multi-method single-subject study with 5 participants, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Incorporate natural, unobstructed pathways and avoid artificial thresholds like doorframes in environments for individuals with Parkinson's disease to prevent freezing of gait.

Study
Human FactorsHigh ImpactStrong effect

Biophilic design elements reduce freezing of gait in Parkinson's patients by 100%

Removing artificial barriers and incorporating natural elements in architectural thresholds can eliminate freezing of gait episodes for individuals with Parkinson's disease.

International Journal of Environmental Research and Public Health · 2015

01

Key Findings

  • 01No participants experienced FOG when passing through hedge openings without built elements.
  • 02FOG was triggered in participants when a doorframe was inserted into a hedge opening.
  • 03FOG was also triggered when peripheral vision was blocked at the threshold.
02

Application

Design takeaway

Incorporate natural, unobstructed pathways and avoid artificial thresholds like doorframes in environments for individuals with Parkinson's disease to prevent freezing of gait.

How to apply

When designing spaces for public access, healthcare facilities, or residential areas for the elderly or those with neurological conditions, opt for naturalistic openings and clear sightlines at doorways and transitions.

Project actions

  • 01When researching user needs, consider how the physical environment can trigger or alleviate specific physical or psychological responses.
  • 02Explore how natural elements can be integrated into design solutions for accessibility and well-being.
03

Method & Evidence

AimTo investigate the effect of natural versus built environmental thresholds on Freezing of Gait (FOG) in individuals with Parkinson's disease.
MethodMulti-method single-subject study
ProcedureFive participants with Parkinson's disease were observed and interviewed while passing through specially designed hedge openings, some with added doorframes and others with blocked peripheral vision. Gait patterns were recorded using accelerometers.
Sample5 participants
ContextEnvironmental design and rehabilitation for neurological conditions

Variables

IV["Presence of a doorframe at a threshold","Peripheral vision obstruction at a threshold","Natural vs. built threshold environment"]
DV["Occurrence of Freezing of Gait (FOG)"]
CV["Participant's diagnosis of Parkinson's disease","Severity of Parkinson's disease symptoms","Type of threshold (hedge opening)"]
04

Strengths & Limitations

Strengths

  • +Utilized a multi-method approach combining qualitative and quantitative data.
  • +Focused on a specific and impactful user experience (FOG).

Limitations

The small sample size limits the generalizability of the findings. The specific design of the 'hedge opening' and 'doorframe' might also influence the results.

Reliability & validity

The single-subject design with multiple data collection methods (interviews, observations, accelerometers) enhances the internal validity for each participant. However, the small sample size limits external validity and generalizability. Reliability would depend on consistent application of observation criteria and accelerometer data processing.

Think critically

How might the psychological fear of 'getting stuck' at a threshold be exacerbated by the visual cues of artificial structures, and how can design mitigate this?

05

Design Principles

"Biophilic thresholds promote unimpeded movement and reduce physiological freezing responses."

This research highlights the profound impact of environmental design on physiological responses, particularly for vulnerable populations. Understanding how natural elements interact with human movement and cognitive processes can inform the creation of more supportive and accessible spaces.

06

What This Means for Your Design

Making doorways look more like natural openings in hedges, without actual doors or frames, can stop people with Parkinson's disease from freezing up when they try to walk through them.

How to use in your project

  • 1.Reference this study when discussing how environmental factors influence user behaviour and well-being, particularly in the context of accessibility or health-related design projects.
07

Add to My Project

08

Quick Cite

Paragraph starter

Research by Ottosson et al. (2015) indicates that naturalistic thresholds, such as openings in hedges without artificial elements, completely prevented freezing of gait in individuals with Parkinson's disease. In contrast, the introduction of a doorframe or the obstruction of peripheral vision at these openings triggered freezing episodes. This suggests that biophilic design principles, focusing on natural transitions and unobstructed pathways, can significantly enhance mobility and reduce adverse physiological responses in vulnerable user groups.

09

Source

International Journal of Environmental Research and Public Health

The Significance of Experiences of Nature for People with Parkinson’s Disease, with Special Focus on Freezing of Gait—The Necessity for a Biophilic Environment. A Multi-Method Single Subject Study

journal · 2015

View source

Questions About This Research

What does the research say about biophilic design elements reduce freezing of gait in parkinson's patients by 100%?
Incorporate natural, unobstructed pathways and avoid artificial thresholds like doorframes in environments for individuals with Parkinson's disease to prevent freezing of gait. Evidence: International Journal of Environmental Research and Public Health (2015).
Why does "Biophilic design elements reduce freezing of gait in Parkinson's patients by 100%" matter for design?
This research highlights the profound impact of environmental design on physiological responses, particularly for vulnerable populations. Understanding how natural elements interact with human movement and cognitive processes can inform the creation of more supportive and accessible spaces.
How can designers apply this research?
Incorporate natural, unobstructed pathways and avoid artificial thresholds like doorframes in environments for individuals with Parkinson's disease to prevent freezing of gait.
What were the main findings?
No participants experienced FOG when passing through hedge openings without built elements.. FOG was triggered in participants when a doorframe was inserted into a hedge opening.. FOG was also triggered when peripheral vision was blocked at the threshold.
What research method was used?
Multi-method single-subject study with 5 participants.
How strong is the evidence?
Evidence strength is rated Strong effect, based on a 2015 journal from International Journal of Environmental Research and Public Health.
What should I do differently in my next project?
When designing spaces for public access, healthcare facilities, or residential areas for the elderly or those with neurological conditions, opt for naturalistic openings and clear sightlines at doorways and transitions.
What are the limitations?
The study involved a very small sample size, and findings may not be generalizable to all individuals with Parkinson's disease or all types of environmental transitions.