Prosthetics Orthotics Design: activity_level
Structural design loads, socket interface pressures, alignment tolerances, and component specifications for prosthetic limbs and orthotic devices. Covers transtibial (below-knee) and transfemoral (above-knee) prostheses, KAFO/AFO orthotics, and upper-limb prostheses. ISO 10328 cyclic load levels P3/P4/P5/P6, K-level activity classifications K0-K4, peak ground reaction forces, socket interface pressures by tissue type, and alignment tolerances. Per ISO 10328:2016, ISO 22523:2006, Frossard mechanical loading studies, CMS K-level definitions.
| device type | design parameter | condition | description | notes | unit | value max | value min | value typical |
|---|---|---|---|---|---|---|---|---|
| activity_level | K1_design_load | level_walking_only | K1 limited household ambulator — design load | K1: level walking, fixed cadence. ISO 10328 P3 or P4 typically sufficient. Minimal dynamic loading. | fraction_BW | BW_x_1.2 | BW_x_0.8 | BW_x_1.0 |
| activity_level | K2_design_load | community_walking | K2 limited community ambulator — design load | K2: low environmental barriers. ISO 10328 P4 standard. Some variable cadence and curb loading. | fraction_BW | BW_x_1.5 | BW_x_1.0 | BW_x_1.2 |
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