Age-Related Differences in the Limited Range of Motion of the Lower Extremity and Their Relation to Low Back Pain in Young Baseball Players: A Cross-Sectional Study of 1215 Players

Sports Medicine - Open

Table 4 Multivariable analysis for the association between LBP and limited range of motion of the lower extremities (11–14 year age group)

	OR (95% CI)	P value
Total amount of practice per week, ≥ 20 h	2.92 (1.59–5.27)	0.0007*
Rohrer index, ≥ 145	2.12 (1.24–3.59)	0.0069*
Previous history of lower extremity injuries during the season	1.61 (0.51–4.30)	0.39
Positive Thomas test	1.24 (0.79–1.93)	0.34
Positive SLR test	0.99 (0.59–1.64)	0.98
Positive HKT	1.75 (1.11–2.78)	0.016*

LBP low back pain, OR odds ratio, CI confidence interval, SLR straight leg raising, HKT heel-to-buttock test
^*P < 0.05