Table 3. Comparison of knee cartilage subregion volume between recreational runners and sedentary controls (mean ± SD).

Group	Recreational runners (mL)	Sedentary controls (mL)	t value	P value
Femoral medial posterior	1.22±0.20	1.10±0.23	0.211	0.83
Femoral medial central	1.05±0.12	0.98±0.16	1.726	0.09
Femoral medial anterior	0.34±0.06	0.38±0.07	2.579	0.01
Femoral trochlear medial	1.08±0.14	1.07±0.13	1.725	0.09
Femoral trochlear central	0.52±0.12	0.44±0.12	1.754	0.09
Femoral trochlear lateral	0.23±0.05	0.25±0.06	1.416	0.16
Femoral lateral posterior	0.78±0.09	0.74±0.12	−0.073	0.94
Femoral lateral central	0.27±0.06	0.22±0.07	1.581	0.12
Femoral lateral anterior	0.81±0.15	0.77±0.15	1.446	0.15
Patellar lateral inferior	1.09±0.13	1.08±0.12	−1.769	0.08
Patellar lateral central	0.61±0.08	0.63±0.12	0.304	0.76
Patellar lateral superior	0.51±0.09	0.50±0.12	1.851	0.07
Patellar medial inferior	0.90±0.11	0.85±0.13	−0.913	0.36
Patellar medial central	0.64±0.08	0.56±0.08	1.149	0.26
Patellar medial superior	1.22±0.20	1.10±0.23	1.88	0.07
Tibial lateral posterior	1.05±0.12	0.98±0.16	0.704	0.48
Tibial lateral central	0.34±0.06	0.38±0.07	0.14	0.89
Tibial lateral anterior	1.08±0.14	1.07±0.13	−0.453	0.65
Tibial medial posterior	0.52±0.12	0.44±0.12	0.442	0.66
Tibial medial central	0.23±0.05	0.25±0.06	1.24	0.22
Tibial medial anterior	0.78±0.09	0.74±0.12	2.787	0.009

SD, standard deviation.