A skinny, 22 year-old male visits the local medical clinic complaining of severe cramping in his calves, thighs, buttocks, back, and shoulders, as well as increased fatigue. He tells you that for the last 3 weeks he has been trying very hard to get into shape. He is doing a new, intense weight-training program for at least an hour most days, and running treadmill for 45 minutes four days per week. He says that despite his intense workout regimen he seems to be losing, not gaining, muscle mass...
specific factors contributing to paitents...
If paitent continues to follow workout regimen and diet...
background
excitation-contraction coupling
fuels and other compunds needed
anatomy of a muscle
factors that contribute to fatigue
muscle (organ)
fascicle (portion of muscle)
cramping pain
muscle loss
fatigue
click to edit
click to edit
click to edit
pros
cons
pros
cons
pros
cons
how might his current problems start affecting other systems
heart could be pumping to quickly causing heart problems
not enough nutients needed to properly regulate systems
cause too much stress on a system and it give out or shut down for a time
if he keeps this diet he isnt getting all the nutients to keep him strong and healthy
health problems will rise
could put too much stress on body and other systems could shut down or be affected
muscle fiber (cell)
fascicle
muscle fiber
nucleus
muscle
tendon
epimysium
consists of hundreds and thousands of muscle cells
nerves
blood vessels
muscle is connected to the tendon
tendon is connected to bbone
fascicle
perimysium
discrete bundle of muscle cells
seperate from rest of muscle
by connective sheath
elongated multinuculate cell
surrounds the whole fascicle
endomysium
sarcolemma
myofibril
part of a muscle fiber
surrounds the mucle fiber
muscle fiber plasma membrane
densely packed, rodlike elements
single muscle fiber can contain 1000s
80% of muscle cell volume
features
myofiliments
sarcomeres
striations
molecular compostions of myofilaments
bands
bands cont..
light
dark
A band
H zone
I band
M line
information
steps
step 1
step 2
then are coupled to sliding of myofilaments(contraction)
AP prolongated along sarcolemma and down T tubules
events which transmit AP along sarcolemma(excitation)
voltage sensitive protiens within tubules stimulate Ca+ release from SR
Ca+ release leads to contraction
AP brief ends before contraction seen
transmission of AP causes the voltage sensitive tubulue protiens to change shape
Action potential prolongates along sarcolemma and down T tubules
shape change then opens the Ca+ release channelsin terminal of SR allowing Ca+ to flow into cytosol
fatigue
can lead up to
mental health
health/diets
life factors
hydration
lack of sleep
diets
stress
physical work
ATP
characterisitcs of muscle
power overall movement of contraction
bodys biochemical way to store engry
contractibility
extensibility
excitibility
elasticity
ability to recieve and respond to stimuli
ability to shorten forcibly when stimulated
ability to be stretched
ability to recoil to resting state
skips meals to try and reduce body fats
avoids sporta drinks so isnt getting some of those needed chemicals into body
drinks atleast a gallon of water daily
has adapted a vegan diet which isnt letting him get proper nutients for amount of workouts he does
working out with different techniques if the first doesnt work
doing weight training program at least an hour a day not over working himself with program
will feel worse then he does at the moment