Validation of a Biofeedback System for Wheelchair Propulsion Training

Table 4

Validation of torque measurements.

Variable	Actual torque (Nm)	Measured torque (Nm)	Error (%)
√(𝑇^2𝑥+𝑇^2𝑦)	6.03	5.99 ± 0.09	−0.56
	17.61	17.45 ± 0.10	−0.89
𝑇𝑍	6.03	6.08 ± 0.07	0.87
	17.61	17.97 ± 0.07	2.04

Measured values are mean ± 1 standard deviation.