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  • Loss Of Muscle Bulk
    420 words
    ALS- Amyotrophic lateral sclerosis Lou Gehrig's disease- Yankee B-Ball player 1903-1941 Neurodegenerative disease- Unknown cause breaks tissue down in nervous system. Motor Neurons- they control muscle movement Affects nerves from the brain to the spinal cord (upper motor neurons) then the lower spinal cord (lower motor neurons) which control muscle movement. With this disease, for unknown reasons, these neurons die, meaning a progressive loss of the ability to move nearly any of the muscles in ...
  • Heart And Type II Muscle Fibers
    1,353 words
    Blood and ExceriseType II muscle fibers oxidize lactate at a very fast rates. When muscle contraction produces a significant amount of lactate, it is then released intothe central circulation of the blood, and within seconds it is made available to that muscle for energy. Therefore, 75% of the lactate produced from high intensity exercise is made available for energy production in type II muscle fibers. The remaining 25% of lactic acid is used for energy in the heart, the make up of liver glycog...
  • Last Body Type
    854 words
    Fundamentals of Fitness When we first took this class I thought I knew all I needed to know about physical education. We learned that fitness is the ability to carry out daily activities with vigor and alertness with out fatigue. When I learned this I thought everyone is fit. I started to realize that older people have difficulty going up and down stairs and other activities that should be easy. As they got older they did not keep fit and started to become unhealthy. If you are physically fit th...
  • Benefits Of Aerobic Exercise
    1,127 words
    AEROBICS What do you think of when the word aerobics enters your mind Have you ever considered applying aerobics to your life Do you know what benefits there are Whatever you may be thinking, here is a more thorough explanation to help better understand what aerobics is. Basically, aerobics is any activity that uses large muscle groups, can be maintained continuously for a long period of time, and is rhythmic in nature. Aerobic activity trains the heart, lungs, and cardiovascular system to proce...
  • Muscle Before Your Workout
    822 words
    In today's society, health and physical condition are emphasized far more than in the past. Fitness centers are being built across the nation providing a place where we can improve our well being. Thousands of Americans are flocking to these health centers to enhance their physical strength. Often times these people are not making the best of their time. They spend hours in the gym and see modest results. The reason for this is they simply do not have a great plan when entering the weight room. ...
  • Bigger Muscle Needs Blood
    284 words
    Planning Aim: We are going to find out what happens to the heart rate of a person when they do various exercises. Hypothesis: I think that the heart rate will increase more dramatically when you exercise an area that contains bigger muscles than an area that contains smaller muscles. I think this because I know that muscles need oxygenated blood to use for energy to move, and so a bigger muscle needs blood more quickly during exercise which make's the heart have to pump faster to get enough oxyg...

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