Biomechanics:Biomechanics:Instep & Side Foot Soccer KickInstep & Side Foot Soccer Kick

Naomi ShimabukuNaomi Shimabuku

Becky WongBecky Wong

PE 483 Dr. CasterPE 483 Dr. Caster

Two Types of Soccer KicksTwo Types of Soccer Kicks

Instep KickInstep Kick Kicking with the “laces” Kicking with the “laces”

of your foot.of your foot.

Side FootSide Foot Kicking with the inside Kicking with the inside

of your foot.of your foot.

Instep KickInstep Kick

Phase OnePhase One Planting one foot at the Planting one foot at the

side of the ballside of the ball Kicking foot extended Kicking foot extended

back back Phase TwoPhase Two

The swing through of the The swing through of the kicking foot to kick the kicking foot to kick the ball with the instep of the ball with the instep of the foot foot

Side Foot KickSide Foot Kick Phase OnePhase One

Planting one foot at the side of Planting one foot at the side of the ball the ball

Kicking foot extended backKicking foot extended back Hips externally rotatedHips externally rotated Ankle facing inwardAnkle facing inward

Phase TwoPhase Two The follow through of the The follow through of the

kicking foot to make contact kicking foot to make contact with the ball with the inside of with the ball with the inside of the foot the foot

Phase Timing AnalysisPhase Timing Analysis

Absolute Time

0

0.2

0.4

0.6

0.8

1 2

Instep vs Side kick

Tim

e (s

ec)

phase 1

Phase 2

InstepInstep Side FootSide Foot

Phase 1Phase 1 10 frames10 frames 9 frames9 frames

Phase 2Phase 2 25 frames25 frames 12 frames12 frames

Absolute Absolute time Phase 1time Phase 1

0.290.29 0.430.43

Absolute Absolute Time Phase 2Time Phase 2

0.710.71 0.570.57

Relative TimeRelative Time

Relative Time

0%

20%

40%

60%

80%

1 2

Instep vs Side kick

% o

f Tot

al M

ovem

ent

Tim

e

phase 1

phase2

InstepInstep Side FootSide Foot

29%29% 43%43%

71%71% 57%57%

Video Kinematics: Instep KickVideo Kinematics: Instep Kick

Joint Angle Measurement:Joint Angle Measurement: Hip starts off almost parallel to the ground and end Hip starts off almost parallel to the ground and end

up in an angle of about 30 degrees up in an angle of about 30 degrees

Segment InclinationSegment Inclination knee is at about 28 degree knee is at about 28 degree

angle and ends at about a angle and ends at about a 170 degree angle.170 degree angle.

Video Kinematics: Instep KickVideo Kinematics: Instep Kick

Greater Degree angle of knee back Greater Degree angle of knee back

= =

greater distance and velocity.greater distance and velocity.

Video Kinematics: Instep KickVideo Kinematics: Instep Kick