Two-Segment Foot Model for the Biomechanical Analysis of Squat

Table 1

Marker configuration description and representation.

Name	Position	Description	Marker protocol
KNEE	Lateral femoral condyle	Apex of lateral femoral epicondyle
MKNEE	Medial femoral condyle	Apex of medial femoral epicondyle
LMAL	Lateral malleolus	Apex of lateral malleolus
MMAL	Medial malleolus	Apex of medial malleolus
C1	Calcaneus 1	Apex of calcaneal tuberosity
LCAL	Peroneal tubercle	Lateral calcaneus
MCAL	Sustentaculumtali	Medial calcaneus
P1MT	Metatarsal 1	Base of the 1st metatarsal
P5MT	Metatarsal 5	Base of the 5th metatarsal
D2MT	Head 2	Between 2nd and 3rd metatarsal head
HLX	Hallux	Base of hallux
Virtual landmarks
KC	Knee joint center	Midpoint between MKNEE and KNEE
AC	Ankle joint center	Midpoint between MMAL and LMAL
HFV1	HFV1	Midpoint between MCAL and LCAL
MTC	Midtarsal joint center	Midpoint between P1MT and P5MT