Research Article

Validation of a Biofeedback System for Wheelchair Propulsion Training

Figure 4

Centrifugal force ( 𝐹 𝐶 ) and gravitation ( 𝐹 𝐺 ) force of the test mass applied to the handrim during dynamic testing, where 𝜃 is the wheel angle, 𝜔 is the angular velocity of the wheel, 𝑟 is the radius of the handrim, and 𝛼 is the angle of the mass with respect to the load cell coordinate system.
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