Table 2. Multiple linear regression models obtained for muscle reaction time according to BMI.

Muscles	R2	Coefficient β	P value	95% CI
Rectus femoris
Model 1	0.20		ns
Intercept		83.93	ns	68.00	99.86
Overweight/obese		18.25	ns	0.08	36.43
Boys		4.47	ns	−13.71	22.64
Model 2	0.21		0.044
Intercept		85.91	0.000	72.32	99.50
Overweight/obese		18.13	0.048	0.15	35.11
Vastus medialis
Model 1	0.02		ns
Intercept		80.15	ns	69.14	91.16
Overweight/obese		5.33	ns	−7.23	17.89
Boys		−2.35	ns	−14.92	10.21
Model 2	0.02		ns
Intercept		79.11	ns	69.72	88.49
Overweight/obese		5.39	ns	−7.02	17.80
Vastus lateralis
Model 1	0.21		ns
Intercept		79.04	ns	66.69	91.40
Overweight/obese		14.66	ns	0.57	28.75
Boys		5.4	ns	−8.68	19.49
Model 2	0.22		0.042
Intercept		81.44	0.000	70.86	92.03
Overweight/obese		14.51	0.042	0.50	28.51

Notes.

95% CI

95% Confidence Interval

ns

no significant

The reference for the overweight/obese category was the normal weight category. The reference for boys was girls.