Table 1. Angle and activity differences between the HBBS and LBBS for 60% 65% and 70% 1RM (mean ± SD) and p-values.

Variable	60% 1RM		65% 1RM		70% 1RM
	Diff (%)	p	Diff (%)	p	Diff (%)	p
Angle
AFE	14.3 ± 12.5*	<0.001	14.7 ± 11.3*	<0.001	12.2 ± 9.0*	<0.001
KFE	4.6 ± 3.0*	<0.001	3.8 ± 2.7*	<0.001	3.5 ± 2.7*	<0.001
HFE	−3.2 ± 2.4	0.158	−2.5 ± 1.6	0.086	−3.0 ± 1.6	0.106
PT	−30.6 ± 20.6*	<0.001	−26.4 ± 18.3*	<0.001	−33.3 ± 12.6*	<0.001
Activity, eccentric
LES	−15.8 ± 5.1*	<0.001	−9.5 ± 5.4*	<0.001	−11.7 ± 5.8*	<0.001
GM	−25.2 ± 8.2*	<0.001	−20.7 ± 11.1*	<0.001	−16.8 ± 10.4*	<0.001
BF	−11.8 ± 9.7*	<0.001	−9.4 ± 6.0*	<0.001	−10.8 ± 5.4*	<0.001
RF	8.4 ± 4.9*	0.001	6.2 ± 3.4*	0.024	5.3 ± 4.3*	0.028
VLO	−13.8 ± 7.7*	<0.001	−6.8 ± 4.7*	<0.001	−4.2 ± 10.4	0.372
VMO	−11.2 ± 8.0*	<0.001	−6.7 ± 5.6*	<0.001	−8.7 ± 5.9*	<0.001
Activity, concentric
LES	−14.1 ± 6.6*	<0.001	−9.7 ± 7.3*	<0.001	−9.9 ± 6.2*	<0.001
GM	−15.8 ± 10.9*	0.021	−6.3 ± 4.7*	0.003	−4.2 ± 3.0*	0.005
BF	−17.9 ± 8.5*	<0.001	−14.1 ± 10.0*	<0.001	−17.3 ± 7.4*	<0.001
RF	7.5 ± 3.4*	0.043	6.1 ± 4.7*	0.020	6.3 ± 4.6*	0.001
VLO	0.4 ± 5.0	0.607	4.5 ± 3.4*	<0.001	3.5 ± 1.9*	<0.001
VMO	−0.2 ± 4.9	0.656	6.3 ± 5.0*	<0.001	1.0 ± 2.6	0.348

Notes.

HBBS

high-bar back squat

LBBS

low-bar back squat

1RM

one repetition maximum

SD

standard deviation

Diff

difference

AFE

ankle flexion extension angle

KFE

knee flexion extension angle

HFE

hip flexion extension angle

PT

pelvis tilt angle

LES

lumbar erector spinae

GM

gluteus maximus

BF

biceps femoris

RF

rectus femoris

VLO

vastus lateralis

VMO

vastus medialis

^*significant differences (p ≤ 0.05) between the HBBS and HBBS.