Voluntary Activation
Predictors	Estimates	95% CI	p
(Intercept)	74.05	67.33–80.78	<0.001 *
Laboratory method a	0.32	−3.61–4.25	0.872
Ankle pain (/10)	0.08	−0.82–0.98	0.866
Maximal voluntary contraction (N)	0.02	0.01–0.02	<0.001 *
Physical activity (METs/week)	0.00	0.00–0.00	<0.001 *
a In comparison to the portable protocol; * indicates statistical significance; Akaike Information Criterion: 268.8282.