Table 2. Pre- and post-intervention 1-repetition maximum (1RM; means ±SD) and isolated lumbar extension strength (N.m), changes, and 95% confidence intervals (CI).

Data for back squat 1RM and hip thrust 1RM are presented as medians (±IQR), whereas data for isolated lumbar extension strength is presented as mean (±SD).

Group	Variable	Pre-intervention	Post-intervention	Changes	95% CI for change
Back squat group (n = 7)	Back squat 1RM (kg)	115.0 ± 35.0	122.5 ± 27.5	10.0 ± 7.5	[7.6–15.9]
	Hip thrust 1RM (kg)	160.0 ± 42.5	180.0 ± 50.0	15.0 ± 5.0	[6.1–34.6]
	Isolated lumbar extension strength (Nm·degrees)	19,670 ± 1,974	20,000 ± 1847	321 ± 270	[25–600]
Hip thrust group (n = 7)	Back squat 1RM (kg)	110.0 ± 7.5	117.5 ± 17.5	5 ± 2.5	[1.8–15.4]
	Hip thrust 1RM (kg)	162.5 ± 25.0	187.5 ± 42.5	27.5 ± 15.0	[19.9–35.1]
	Isolated lumbar extension strength (Nm·degrees)	21,310 ± 2,950	21,820 ± 2998	509 ± 439	[231–856]