Running and its phses are described and how its biomechanical components differ from the normal walking are described.

1. BIOMECHANICS OF
RUNNING
Dr. Manasi Kulkarni
MPT-Neurophysiotherapy
Guide: Dr. Suvarna Ganvir
D.V.V.P.F’s College of Physiotherapy, Ahmednagar

2. CONTENTS
• Introduction
• Difference between running and walking
• Phases of Running

3. INTRODUCTION
• Running is similar to walking in terms of locomotor activity.
• During Running gait cycle, the GRF & COP increase to 250 % of body weight (Double
that of Walking).
• Running requires :
1. Greater balance – double float period
2. Muscle strength – elevation of HAT
3. Joint ROM - absorb increased energy to control weight

4. DIFFERENCE BETWEEN RUNNING AND WALKING
• Time & ground contact pattern in Running alters than the walking
• Greater joint motion in Running
• More Eccentric muscle work
• Double & single limb support (period of double limb float).
• < 40% of stance
• > 60% swing (vice versa)
• Running – speed Stance time Swing time
• For Running – increase in step length & step rate.

5. PHASES OF RUNNING CYCLE
Swing phase
Initial Swing
Terminal
Swing
Stance Phase
Loading
Mid stance
Propulsion

7. • Progression towards heel strike
1. Foot supinated with slight inversion(0-5*)
2. Pelvis ant tilt & internal rotation (10*)
3. Hip external rotated (10*) & flexed(20-30*)
4. Knee flexion (10*)
Loading Phase

8. • During this time ankle moves towards maximal dorsi flexion(20*).
• Same time hip & knee moving from flexion towards extension for assisting
forward motion body COM.
• Max foot pronation followed by ankle dorsi flexion should reach, rear foot
eversion(10*)& fore foot abduction (5*) as the COM passed ant to the stance
limb.
Mid stance

9. • Following heel off foot continues to supinate & plantar flexed.
Rear foot
inversion
Transverse tarsal
joint converge
Mid foot locked
Propulsion

10. • At this time swing side relies on contralateral gluteal musculature to dissipate
the GRF produced by this event & prevent pelvic dropping in swing side.
Initial Swing

11. • During this time swing hip reaches maximal flexion (30*) (before coming under
control of hams & gluts) Same hams activity slows the rapid extension of knee
for preparation of heel strike & hip adductors control eccentrically to control
abduction.
• Then adductors acts concentrically to bring hip towards midline.
Terminal Swing

12. THANK YOU!!