The effects of a high-intensity exercise bout on landing biomechanics post anterior cruciate ligament reconstruction: a quasi-experimental study

Table 3 Electromyography data

Variable	Pre-exercise	Post-exercise	P-value
Variable	Mean ± SD	Mean ± SD	ME-G (β)	ME-E (β)	Interaction (β)
Muscle Activity
Gluteus maximus
ACLR	73.60 ± 17.26	70.93 ± 18.36	0.99 (0.05)	0.83 (0.05)	0.52 (0.09)
Control	71.54 ± 15.11	72.90 ± 17.67	0.99 (0.05)	0.83 (0.05)	0.52 (0.09)
Quadriceps
ACLR	79.18 ± 8.91	74.66 ± 3.67	0.02 (0.61)	0.007^*	0.94 (0.50)
Control	84.62 ± 6.28	80.32 ± 12.70	0.02 (0.61)	0.007^*	0.94 (0.50)
Hamstrings
ACLR	60.86 ± 6.29	65.19 ± 14.66	0.07 (0.42)	0.17 (0.26)	0.67 (0.06)
Control	67.07 ± 6.91	69.38 ± 14.14
Gastrocnemius
ACLR	56.26 ± 13.46	59.48 ± 10.77	0.08 (0.41)	0.44 (0.11)	0.04 (0.54)
Control	66.00 ± 5.59	59.16 ± 11.08	0.08 (0.41)	0.44 (0.11)	0.04 (0.54)

ACLR Anterior cruciate ligament reconstruction; β Power; ME-G Main effect for group; ME-E Main effect for exercise; SD Standard deviation. ^*Statistically significant (p < 0.0167)

ISSN: 2052-1847