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Comparison of perceived backpack comfort using two rating scales
Bert H Jacobson1, Brook Oney, Brady Redus
1Oklahoma State University, Stillwater 74074, USA. BHJ52@okstate.edu
Perceptual and Motor Skills
|September 28, 2004
Summary
This study found that an experimental backpack design significantly improved back comfort compared to traditional ones, according to one rating scale. Backpack comfort is influenced by user body size and design features.
Area of Science:
- Biomechanics
- Ergonomics
- Musculoskeletal Health
Background:
- Student backpack use is linked to musculoskeletal discomfort and postural issues.
- Heavy loads carried in backpacks raise concerns for student health.
- Optimizing backpack design is crucial for mitigating these risks.
Purpose of the Study:
- To compare perceived comfort between personal and experimental backpacks.
- To evaluate two different comfort rating scales for backpack use.
- To investigate the influence of body size on backpack comfort.
Main Methods:
- Nineteen college students participated in a randomized crossover trial.
- Subjects rated comfort of personal and experimental backpacks using Visual Analog and Anatomical Illustration scales.
- Data analyzed for differences in perceived neck, shoulder, back, and overall comfort.
Main Results:
- No significant comfort difference found using the Visual Analog Scale.
- The experimental backpack was rated significantly more comfortable for the back on the Anatomical Illustration Rating Scale (p<.05).
- Body size (weight, height, BMI) correlated with backpack comfort ratings.
Conclusions:
- The Anatomical Illustration Rating Scale is more sensitive to comfort differences than the Visual Analog Scale.
- Experimental backpack features may enhance comfort, particularly for specific body proportions.
- Backpack manufacturers should consider user body size in ergonomic design for improved student comfort.