This document discusses the movements and muscles involved in the knee and ankle joints. It describes the movements of flexion, extension, inward rotation, and outward rotation at the knee joint. The main flexors are the hamstrings and biceps femoris, while the main extensors are the rectus femoris and vastus group. It also describes dorsiflexion, plantar flexion, inversion and eversion at the ankle joint, and lists the main muscles involved in each, such as the tibialis anterior for inversion and extensor digitorum for eversion.

1. VIDHYA DHAR RAI
M.P.Ed
2015-2016
AMITY UNIVERSITY

2. Movement & muscle
knee & Ankle Joint

3. Movement on Knee Joint
 FLEXION
 EXTENSION
 INWARD ROTATION
OUTWARD ROTATION

4. FLEXION
knee flexors are a
group of muscles
which cross the
posterior of
the knee joint
whose
contraction
induces flexion o
f the joint.

5.  EXTENSION
Extension is a
movement of a
joint that
results in
increased angle
between two
bones or body
surfaces at a
joint.

6.  INWARD ROTATION
Internal
rotation
(also known
as medial
rotation) is
rotation towards
the center of the
body.

7.  OUTWARD ROTATION
External
rotation (or
lateral rotation)
is rotation away
from the center of
the body.

8. KNEE JOINT-MUSCLES INVOLVED
• FLEXION:- SEMITENDI-
NOSUS,
SEMIMEMBRA-NOSUS
OR BICEPS FEMORIS
• EXTENSION:- RECTUS
FEMORIS OR VASTUS
GROUP
• INWARD ROTATION:-
SEMITENDI-NOSUS,
SEMIMEMBRA-NOSUS
• OUTWARD ROTATION:-
BICEPS FEMORIS

9. Rectus Femaris & Vastus Group

10. MOVEMENT OF ANKLE & FOOT JOINT
 DORSI FLEXION
 PLANTER FLEXION
 INVERSION
 EVERSION

11.  DORSI FLEXION
Dorsi flexion is the
movement which
decreases the angle
between the dorsum
(superior surface) of
the foot and the leg, so
that the toes are
brought closer to
the shin.

12. PLANTER FLEXION
Plantar flexion is the
movement which
increases the
approximate 90
degree angle
between the front
part of the foot and
the shin,

13. INVERSION & EVERSION
• Inversion is the
movement of the
sole towards the
median plane (as
when an ankle is
twisted).
• Eversion the
anatomical term of
motion denoting
the movement of
the sole of the foot
away from the
median plane

14. ANKLE & FOOT JOINT- MUSCLES INVOLVED
• Dorsi flexion :- Tibialis
, Extensor Digitorum
longus.
• Planter Flexion:-
Gastrocnemius or
soleus.
• Inversion:- Tibialis
Anterior.
• Eversion:- extensor
Digitorum