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SAI INTERNATIONAL SCHOOL
LEARNING NOTES
Physical Education
Chapter- 8 [Biomechanics & Sports]
Meaning of Biomechanics: Sports Biomechanics is the study of forces and stresses of human
movement & their effect on athletics performance and safety.
Importance of Biomechanics in sports
1- Assist in improving Technique: Dick Fosburby discovered the new technique of high jump with the
help of biomechanics.
2- Help in Improving Equipment
3- Facilitates Performance in Sports
4- Support in Preventing Injuries
5- Help in Promoting Safety
6- work in the improvement of training
7- Facilitates in Understanding of Human Body
8- Assist in improving Teaching & Learning Process
TYPES OF MOVEMENTS
Glidding Movement: is the simplest kind of motion that can take place in a joint. It is very common to
all movable joints but in most of the articulations of the carpus and tarsus.
Angular Movement: occurs only between the long bones, it may take place forward, backward,
flexion, extension ,adduction and abduction.
Flexion: bending the lower limb at the knee
Extension: straightening the lower limbs at the knee
Abduction: lifting the upper limb horizontally to form a right angle with the side of the body
Adduction: returning the upper limb from the horizontal position to the side of the body
Circumduction: moving a finger in a circular motion without moving the hand rotation
