Nccpt Flashcards
what role does a muscle fibers arrangement play?
speed of contraction, and force output
what is a myofibril?
the smallest unit of a muscle cell
concentric strength
the amount of muscular skeletal force to overcome a resistance by a shortening of the muscle fiber
eccentric strength
the amount of muscular skeletal force displayed when a muscle is lengthened under tension
overload principle
the attempt to challenge the muscular skeletal system with unaccustomed stimulation such as increased weight speed, or volume of training
five major factors that effect training
level of fitness, intensity,duration,frequency, and genetics
metabolism
the chemical and physiological process in the body that provides energy for maitenence of life
glycemic index
1-100 given to determine rate at which a carb is broken down into glucose. the lower the # the longer it takes to break down
cholesterol
is a lipid or fat related substance necessary for good health. it is a normal component of most body tissues especially those of the brain, nervous system, liver, and blood.
normal cholesterol range
120-160 mg/dl
9 essential amino acids
phenylalanine, valine, tryptophan, methionine, threonine, histidine, isoleucine, lycine, leucine
what % of ingested calcium is absorbed?
20-30%
flexibility
the capability of a joint to move freely in every direction or specifically through a full ROM
range of motion
the possible movement about a joint in a static or dynamic state within the anatomical limits of the joint structure
six factors that can influence or limit joint mobility
genetics, age, hypokinesis, gender, body type, body temperature
4 benefits of stretching
decrease risk of injury, reduce stress, reduce low back pain, improve muscular balance and body alignment awareness, increase neuromuscular coordination
what causes multiple sclerosis
is the process of demyelination and subsequent disruption of the nerve impulse flow
what should be avoided in exercise program for someone with MS
avoid overheating
what response can you expect from a client taking beta blockers
decreased exercise HR
what response during submaximal testing can you suspect from a client taking calcium channel blockers
lower blood pressure
sagittal plane
splits body into right and left halves. elbow flexion
frontal plane
splits body into front and back halves. lateral flexion of the trunk.
horizontal plane
splits body into top and bottom halves. trunk rotation.
what is scapular abduction
joint movement away from anatomical position in the frontal plane or transverse plane. hen a joint is movement is moving from a position of adduction to or past neutral