A pilot study on a potential relationship between leg bone length and sprint performance in sprinters; are there any event-related differences in 100-m and 400-m sprints?

Table 2 Correlation coefficients between leg bone length variables and sprint performance (International Amateur Athletic Federation score) in 100-m and 400-m specialized sprinters

	100-m sprinters		400-m sprinters
	R [lower limit, upper limit]	P value	R [lower limit, upper limit]	P value
Leg bone length
Femur	− 0.166 [− 0.508, 0.221]	0.399	0.007 [− 0.367, 0.379]	0.970
Tibia	− 0.173 [− 0.513, 0.214]	0.380	0.336 [− 0.042, 0.630]	0.081
Relative leg bone length
Femur	0.004 [− 0.370, 0.377]	0.983	− 0.273 [− 0.586, 0.111]	0.160
Tibia	− 0.036 [− 0.404, 0.342]	0.857	0.257 [− 0.128, 0.575]	0.187
Total bone length
Femur + Tibia	− 0.174 [− 0.514, 0.213]	0.376	0.191 [− 0.196, 0.527]	0.330
Relative total leg bone length
Femur + Tibia	− 0.016 [− 0.387, 0.359]	0.935	0.040 [− 0.338, 0.407]	0.841
Ratio between leg bone lengths
Tibia/Femur	− 0.017 [− 0.388, 0.358]	0.932	0.445 [0.086, 0.702]	0.018

International Amateur Athletic Federation scores, based on the personal best times of each event for 100-m and 400-m specialized sprinters were used as parameters for sprint performance. Italic values indicate a significant correlation (P < 0.05) between leg bone length variable and sprint performance in 400-m specialized sprinters

ISSN: 1756-0500