Table 2. Bone measurements used in the analysis.

Abbreviation	Measurement definitions
FL*	Maximum length of the femur from the upper rim of the femoral head to the medial condyle parallel to the shaft.
FGT*	Mediolateral breadth from the femoral head to the greater trochanter.
FAPD	Anteroposterior diameter in the mid-shaft of the femur.
FMLD	Mediolateral diameter in the mid-shaft of the femur.
FEB*	Biepicondylar breadth of the femur.
TL*	Length of the tibia from the anterior rim of the medial condyle to the anterior rim of the talar trochlear articulation parallel to the shaft.
TSL*	Length from the anterior rim of the medial condyle to the distal extension of the tibial tuberosity (spine) parallel to the shaft.
TAPD	Anteroposterior diameter the mid-shaft of the tibia.
TMLD	Mediolateral diameter the mid-shaft of the tibia.
PL*	Maximum length of the pelvis from the posterior end of the ischium to the anterior end of the iliac wing.
IL*	Length from anterior rim of acetabulum to distal end of iliac wing.

The bone measurements are illustrated in Fig. 1. We referred to Samuels et al. (2013) [29] for these measurements, except for FGT, PL and IL. Asterisks indicate the measurements used in the principal component analysis.