Lecture 7 - Jan 28 - applicationof physiology to trainign variblies Flashcards
decribe the acute response to resistance training
iniiated at central command
down spinal chord
at NMJ - AP to muscle AP
into MU acitvation patterns
Propogates thru sarcolemma, releaseing calcium and allow force prod.
what are the three main ways force is regualted
motor unit recruitment, firing frequency and intermuscular coordination
what is intemruscualr coorindation
ability to synchronize all muscles of a kinetic chain involved in action
what motor unit would be recuited first of
TI, TIIa, TIIX and TIIb?
Ti - smallest
tiib largest
what si the force veolicty relationship
the higher the force the less velocity one can geenrate - les cpacty fir hgih velocity movements
what is an example of tempo for a back swuate
4, 2 X 0
low velocyt ecentirc - high force
isometric pause - iliminates stretch reflex
high velocity concentric - trains RFD
waht is faaitgue mainly due to?
decrase in crossbridge fomration/function
- #cycling Xb, force per XB, rate of activation/deactiavtion an rate of cycling itself
To combat muscle fatigue in prolonged (isokinetic) tasks, muscles use __
MU reotation - some MU dacgivate an dotehr become activae maintaing contaction stength
novice lifters will see gains training ___x/week
once
when might training 4x /week be beneficial?
indiviudal training multiple muscle groups - split routine
upper/lower rest upper/ower
what are some reasons we might deviate from the usualy 2x/week of trinain
mroe stimulus neededf or adption
prevent stagnantion and boredome
increase upsteram factors
true or false. Training at a diff intensity compeltle negates training goals and reduced teh adapton.
False - its a balancing act - trainign at differnct intenisties mayd ecrase the adaptions but it eill not complietly negate trianing goals - no matter what rep range worked at if u go 1-2 resps within failute there shoudl be adpations
what is teh primary finding by research in terms of intesnity and what rep range to work at
the rep range does not matter os much as long ad u go within 1-2 reps of failure
waht increase is better tolerate volume or internsity?
Voluem is genrally in terms of psychological and neruological components - alos its easie rto modify
a slower temp icnreaess ___ which is goo for what mdoe of resitance training?
incrase TUT - enhance muscualr endurance + hypertophy by keeping muscles engaged for longer
also improve NM coordination by giving indivudal more control over movement
a faster temp ____ TUT and allows ____ which is benfical in dveloping ___
decreases TUT - allows for quick force prouction/greater fore prodcution - good for power
explosive tempos beenfits?
target sepcific muscles + improve form
train fast-twitch msucel fiber and imrpove explsoive strength + pwoer - psorts performance
what paced tempo leads to greater metabolic stress?
slower rempos (esp w higher volume) - contributes to hypertophy
whihc tempos increasse mechanical overload? what is this improtnat for?
fast tempos - important for strength gains
breath in during ____ and out during ___
eccentric - out during concentric
changes in intensity in sets and reps largely gonna influence stres on _____ system
NM
what are some exrcsies u could do for a soccer player (type consideration)
single leg romanian deadlifr - unilateral strngth, balnce and stability - specific.