Category Archives: BIOMECHANICS

MUSCLE CONTRACTION-MECHANICS-BIOMECHANICS NOTES

Muscles Are Organized Into Motor Units

When a single nerve enters a muscle it splits and makes neuromuscular junctions (NMJs) with several muscle cells
A nerve and the muscle cells it makes NMJs with is called a motor unit
When the nerve fires the whole motor unit is stimulated and the muscle cells contract together
Muscles with large motor units have coarse movements
Muscles with small motor units give fine, graded movements
This is a small motor unit with only 3 muscle fibersTwo Basic Types of Contraction Are Isotonic and Isometric

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INTRODUCTION TO BIOMECHANICS (BASIC DEFINITIONS) MUST KNOW

Definitions

Bio mechanics – application of the principles of mechanics / physics to biological organisms
muscle action vs. function
- action – motions produced by a muscle’s shortening; described in reference to axes and planes of body
  - – determined by architecture of joint and position of muscle around it
  - – pure mechanics which can be inferred
- function – how the organism chooses to use a muscle
  - – can involve positive, negative or non- work (see below)
agonists (Gr., contestant)– muscles with an identical action; usually restricted to single axis or plane of reference

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BASIC ANATOMY OF BODY FOR UNDERSTANDING BIOMECHANICS

THIS DOCUMENT IS A POWERPOINT PRESENTATION CONTAINING ALL THE ESSENTIAL INFORMATION ABOUT VARIOUS BODY MOVEMENTS

SECTIONAL DIVISION OF THE BODY

ALONG WITH PICTURES

PLEASE REFER TO IT

DOWNLOAD BASIC ANATOMY.PDF

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PRINCIPLES OF THROWING

THIS IS A CHAPTER EXTRACTED FROM A BOOK ABOUT THE PRINCIPLES OF THROWING DO REFER THIS CONTENT WHILE STUDYING BIOMECHANICS

THE REASON I AM PROVIDING A DOCUMENT IS THAT I HAVE KEPT IN MY COMPUTER AND I AM NOT ABLE TO COPY PASTE DOCUMENT HERE AS IT IS

SOME OF THE PICTURES ARE LOST SO THIS GOES LIKE THIS

DOWNLOAD PRINCIPLESOF THROWING.DOC

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HUMAN GAIT

THIS DOCUMENT CONTAINS SOME INFORMATION ABOUT THE HUMAN GAIT MOVEMENTS

DOWNLOAD HUMAN GAIT

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Gait analysis is the study of animal locomotion, including locomotion of humans. Gait analysis is commonly used to help athletes run more efficiently and to identify posture-related or movement-related problems in people with injuries.

The study encompasses quantification, i.e., introduction and analysis of measurable parameters of gaits, as well as interpretation, i.e., drawing various conclusions about the animal (health, age, size, weight, speed, etc.) from its gait.

Gait analysis commonly involves the measurement of the movement of the body in space (kinematics) and the forces involved in producing these movements (kinetics).

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