2. Materials and Methods
2.1. Design and Development of the Wearable Instrumented Vest
2.2. TAM-Based Usability Verification
- H1: Technology anxiety is negatively correlated with the perceived usefulness of using a posture-monitoring vest.
- H2: Technology anxiety is negatively correlated with the perceived ease of use of a posture-monitoring vest.
- H3: Perceived ease of use is positively correlated with the perceived usefulness of a posture-monitoring vest.
- H4: Perceived ease of use is positively correlated with attitudes toward using a posture-monitoring vest.
- H5: Perceived usefulness is positively correlated with attitudes toward using a posture-monitoring vest.
- H6: Attitude is positively correlated with the behavioral intention to use a posture-monitoring vest.
3.1. Developed Wearable Instrumented Vest
3.2. Usability with Technological Acceptance Analysis among Elderly People
4.1. Applications for the Wearable Instrumented Vest
4.2. TAM-Based Usability Analysis for Wearable Instrumented Vest
Conflicts of Interest
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|maximum wire length||90 cm|
|conductivity||0.2 Ω/10 cm|
|isolation||Open (>100 MΩ)|
|washability (remove all sensing modules and the gateway)||Pass|
|average of in steady state||1 g ± 3%|
|standard deviation of||<±3%|
|drift test (signal variation after 12 h)||<±0.05%|
|Exogenous Variable||Endogenous Variable||Standardized Regression Coefficient||t-Value||p-Value||Support|
|Technology Anxiety||→||Perceived Usefulness||−0.05||−0.34||>0.05||No|
|Technology Anxiety||→||Perceived Ease of Use||−0.63||−5.65||<0.001||Yes|
|Perceived Ease of Use||→||Perceived Usefulness||0.66||4.99||<0.001||Yes|
|Perceived Ease of Use||→||Attitude||0.37||3.25||<0.01||Yes|
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