If the externally applied force (F) is equal to the force of kinetic friction, F k, then the object slides at constant velocity, and the coefficient of friction involved is called the coefficient of kinetic friction, Î¼ k. In order to find the coefficient of kinetic friction between two surfaces, the horizontal surface method may be used as follows: Horizontal Surface Method: Referring to Fig. 1, it is clear that M has a tendency to move to the right because of F = mg. F is resisted by the ...
The prevalence of the GYS1 mutation in Belgians is as much as 50% of and 8% of the Quarter Horse-related breeds. Horses make and store abnormal muscle glycogen and cannot tolerate dietary starches and sugars. Horses with PSSM can be maintained with low-starch and low-sugar rations and precise exercise protocols. Symptoms usually begin by 2 to 3 years of age. Some horses are subclinical. Clinical signs include skin twitching, stiffness, firm painful muscles, sweating, weakness, and reluctance to move with light exercise.
Controlling Symptoms with Diet. To control the symptoms of PSSM with diet, horses must be fed a diet that is low in starch and sugar and high in fat. This type of diet has been shown to reduce the frequency and severity of symptoms.To be helpful, the total diet must contain less than 8% of the digestible energy from starch and sugar. clinical diagnosis of PSSM can be made when a horse that suffers from chronic exertional rhabdomyolys (ER) is found to have amylase-resistant polysaccharide in his muscles. Amylase is the enzyme that breaks starches down to sugars. ER is a syndrome of muscle pain and cramping that is associated with exercise.