sleeping like an ape gorillas, chimps, gibbons sleep on their side without a pillow –keeps joints...
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Sleeping Like an ApeSleeping Like an Ape• Gorillas, chimps,
gibbons sleep on their side without a pillow– Keeps joints
flexible– Protects private
parts– Conserves heat– Maintains
alertness– Keeps bugs out of
mouth
• Natural diffusion of Ca++ into muscle after death triggers sliding of filaments
• No ATP present (You’re dead!) so cross bridges cannot detach from actin
Is it worth it?• Little evidence that strength or endurance
improve with moderate doses• Negative side effects: liver cancer, kidney
damage, increased heart disease, stunted growth, aggressive behavior, mood swings
• Females: sterility, facial hair, deepening of voice, atrophy of breasts and uterus, menstrual irregularities
• Males: atrophy of testes, diminished sperm production, baldness
• Lacking nerves that carry impulses from brain to face– 6th and 7th cranial
nerve don’t develop– Appears to be
genetic• Can be corrected
somewhat by surgery
• Group of common nonarticular rheumatic disorders
• 15 times more common in women
• Pain that results from gentle pressure at specific “tender spots”
• Effects fibrous connective tissue components of muscles, tendons, and ligaments
• Caused or aggravated by stress, trauma, exposure to dampness or cold, poor sleep, rheumatic condition
• Gentle aerobic fitness program beneficial
• Relieved with heat, massage, and rest
• Frequent sites: lumbar region (lumbago), neck, chest, thighs (charley-horse)
• Weakness of skeletal muscles
• Abnormal neuromuscular junction- partially blocks contraction
• Autoimmune- antibodies directed against Ach receptors
• More common in females
• Muscles weaken and may eventually cease to function
• Inherited muscle-destroying diseases characterized by degeneration of individual muscle fibers (usually voluntary)
• Group of motor disorders
• Result in muscle incoordination and loss of muscle control
• Caused by damage to motor areas of brain as fetus or child
• Slowly lose normal use of feet/legs and hands/arms as nerves to the extremities degenerate
• Muscles in extremities become weakened because of the loss of stimulation by the affected nerves
• Genetic- autosomal dominant
• Muscles contract but Muscles contract but have decreasing power have decreasing power to relax (become weak to relax (become weak and waste away)and waste away)
• Can cause mental Can cause mental deficiency, hair loss and deficiency, hair loss and cataracts cataracts
• Gene on chromosome Gene on chromosome 19 (protein kinase of 19 (protein kinase of skeletal muscle)skeletal muscle)
• Symptoms more severe Symptoms more severe with each generationwith each generation
• Spasm- sudden, involuntary contraction of single muscle in large group
• Cramp- painful spasmodic contraction
• Tremor- rhythmic, involuntary, purposeless contraction of opposing muscle groups
• Fasciculation- brief twitch visible under skin
• Fibrillation- brief twitch not visible under skin
• Tic- spasmodic twitching made involuntarily by voluntary muscles