She says she is still hindered by a lack of full motor function in her left hip.

WSJ: Cross Training: A Racer on Ice Dreams of Summer Games, Too

In some cases, hope can also have important effects on fundamental physiological processes like respiration, circulation and motor function.

CNN: How hope can help you heal

The CRS-R was developed at the JFK Johnson Rehabilitation Institute and grades patients' verbalization, communication, motor function, visual function and response to sound.

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It isn't known how a-syn proteins spread and impair motor function.

WSJ: Exercise Benefits vs. Joint Concerns

In U.S. clinical tests, 75% of 155 Parkinson's patients who had implanted Medtronic's Activa reported better motor function a year later, including reduced stiffness and less shaking.

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Confirming a widely-held rule of thumb, German researchers found that the deterioration in motor function of athletes after long trips lingered for roughly as many days as the number of time zones they crossed.

ECONOMIST: Travel and athletic performance: Road warriors | The

The study included 83 patients who had strokes at least six months before they entered the trial and had chronic deficits in their ability to walk, motor and sensory function, and manual dexterity.

FORBES: Drug That Helps Multiple Sclerosis Patients Walk May Also Aid Stroke Victims

An electric boost function helps in instances where maximum acceleration is desired, when the electric motor works in tandem with the combustion engine during acceleration.

ENGADGET: Porsche Panamera S E-Hybrid plug-in model brings 416 guilt-free horsepower