Table 3. Activity differences between the eccentric and concentric contractions for HBBS and LBBS (mean ± SD) and p-values.

Technique	60% 1RM		65% 1RM		70% 1RM
	Diff (%)	p	Diff (%)	p	Diff (%)	p
HBBS
LES	−34.8 ± 7.7*	<0.001	−33.1 ± 4.5*	<0.001	−32.7 ± 7.6*	<0.001
GM	−74.5 ± 5.1*	<0.001	−75.4 ± 3.2*	<0.001	−73.5 ± 3.7*	<0.001
BF	−61.6 ± 3.4*	<0.001	−60.5 ± 4.7*	<0.001	−56.8 ± 3.8*	<0.001
RF	−37.3 ± 3.0*	<0.001	−37.7 ± 5.5*	<0.001	−35.4 ± 4.7*	<0.001
VLO	−47.5 ± 3.9*	<0.001	−48.1 ± 3.3*	<0.001	−43.6 ± 3.6*	<0.001
VMO	−45.5 ± 3.6*	<0.001	−46.5 ± 5.0*	<0.001	−42.9 ± 3.2*	<0.001
LBBS
LES	−33.5 ± 8.0*	<0.001	−33.1 ± 7.8*	<0.001	−31.4 ± 6.9*	<0.001
GM	−71.6 ± 4.8*	<0.001	−70.7 ± 5.3*	<0.001	−69.3 ± 5.1*	<0.001
BF	−64.1 ± 4.2*	<0.001	−62.8 ± 3.3*	<0.001	−60.0 ± 3.1*	<0.001
RF	−37.8 ± 4.8*	<0.001	−38.1 ± 6.1*	<0.001	−34.8 ± 5.1*	<0.001
VLO	−38.6 ± 5.9*	<0.001	−41.4 ± 4.0*	<0.001	−35.1 ± 8.1*	<0.001
VMO	−38.5 ± 3.7*	<0.001	−38.8 ± 3.6*	<0.001	−36.5 ± 3.9*	<0.001

Notes.

HBBS

high-bar back squat

LBBS

low-bar back squat

1RM

one repetition maximum

SD

standard deviation

Diff

difference

LES

lumbar erector spinae

GM

gluteus maximus

BF

biceps femoris

RF

rectus femoris

VLO

vastus lateralis

^*significant differences (p ≤ 0.05) between the eccentric and concentric contractions.