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The classic essential text on anatomy...

Gait Analysis

Muscle Contraction and Hills Model

V F Murphy< a> Monday 10th May 2004

Structure of Muscle

Muscle is made up of fibrous components termed myofibrils. Each of these is formed by a large number of sarcomeres. Each sarcomere feature repeated bands of Actin and Myosin, causing a banded apperance during microscopy.

The Sliding Filament Model

Huxley proposed that not only did muscles contract by changing the degree of overlap between the actin and myosin filaments, but the force was determined by the degree of such overlap.

Testing the Sliding Filament Mod…

Free Postgraduate Position Service

Gait Analysis

V F Murphy Tuesday 23rd March 2004

The Efficacy of Subplantar Cushioning in Modulating Ground Reaction Force and Total Impulse in Normal Walking Gait

Footwear is prevalent in modern society, and rarely does one undertake locomotive actions unshod. A detailed understanding of the long term influence of such orthotics is a prerequisite to attempting reduction of those geriatric conditions associated with gait, e.g. osteoarthritis. Whilst a considerable body of evidence exists to support the role of cushioning in m…

Gait Analysis I

V F Murphy< a> Saturday 31st January 2004

Gait analysis is the process of quantification and interpretation of human locomotion. The gait may reflect compensations for underlying pathologies, or be responsible for causation of symptoms in itself. Aside from clinical applications, gait analysis is widely used in professional sports training to optimise and improve atheletic performance.

Normal or Standard Gait

So that the aforementioned pathologies may be identified and isolated, it becomes essential to understand the characteristics …

Kistler Instruments

R Cooper Thursday 1st January 1970

When you say force plates, you think Kistler. Since its inception in 1966, Kistler have been at the forefront of biomechanics and gait research.

Their present technology includes piezoelectric force sensors to measure the forces exerted between foot and floor in walking, standing, running, jumping, or pretty much any movement activity. It is even possible to measure such things as wheelchair usage (Kirby et al 1996), or weight lifting (Wretenberg et al 1996).

Typical applications of the Ki…

Orthotics

Ahmed Bilal Thursday 1st January 1970

Orthotics are orthopaedic devices designed to treat or adjust various biomechanical foot disorders. When the foot is not functioning correctly, it will produce painful areas. The signs and symptoms of altered biomechanics of the foot are usually registered as pain. An orthotic can relieve that pain by supporting the ligaments and the osseous (bone) structures of the feet. There are several ways to construct an orthotic such as taking a plaster impression of the foot or using a foam based impress…