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Benefits of a warm up
increase tissue temperature
increase blood flow to working muscles
increase HR
increase exchange of O2 from hemoglobin
increase metabolism
increase motor unit activation
increase ability of connective tissue to elongate
increase psychological preparation
decrease muscular tension
Warm up continuum
generic to specific
General warm up
Dynamic mobility and joint prep
Activation
Movement specific
Purpose/goal of general warm up
Purpose: increase core temperature blood flow, and general readiness
Goal: raise HR, increase blood flow to muscles, enhance oxygen delivery
Intensity and activities of general warm up
low to moderate intensity (should feel warmer, not fatigued)
rowing, cycling, jogging
Purpose/goal of dynamic mobility and joint prep warm up
improve ROM
reduce injury risk
“lubricate the joints”
Intensity and activities of dynamic mobility and joint prep warm up
moderate intensity
leg swings, fire hydrants, arm circles, cat-cow, spine rotations, ankle rolls
Purpose of activation warm up
stimulate CNS/muscle relationship for high intensity exercises
Activation warm up activities
glutes: hip bridges, bird dog
core: dead bug, pallor press, planks
upper back: band pull aparts, face pulls
scapular stabilizers: push up plus, Y-T raises
often working against resistance (band, gravity, etc)
Purpose of movement specific warm up
gradually prepare the body for the specific demands of the training session/game
Important considerations for movement specific warm up
more is required than simply lengthening tissues
active vs passive (strength-length relationship)
Problems with static stretching
stretching longer than 30 seconds can decrease strength, power, linear speed, and jump height/distance
reduction in MU activation and reflex sensitivity
increases the muscle-tendon compliance (slack)
Static stretching >30 seconds appears to have minimal to no negative impact t on strength and power
False, <30 seconds
How many seconds of static stretching would result in impaired performance
60 seconds
How does intensity of static stretching impact performance
static stretching performed at high intensity (close to pain) leads to significant decrease in strength (5%) and power (5-8%)
Why does high intensity static stretching decrease strength and power
reduction in musculoskeletal stiffness (reducing store elastic energy)
increased GTO inhibition (decreased MU recruitment)
decreased MU firing frequency
When should you static stretch
short duration where needed prior to higher intensity training session
long before training session (ex. in am if training in pm)
off-day
after training
Static stretching after training session
does not negatively impact strength power, or hypertrophy
helps increase ROM
recovery and DOMS (does not reduce DOMS)
Mobility training
the combination of flexibility and motor control that allows unrestricted, functional movement patterns
most pre-workout, pre-practice, and pre-game preparation is mobility focused
Flexibility is mostly active ROM and mobility is passive ROM
False, flexibility is passive and mobility is active
What does passive ROM exceeding active ROM by >10% indicate
weakness in prime movers (agonist)
neuromuscular inhibition (typically after injury)
pain, stiffness, or guarding
Passive ROM is greater than active ROM
True, by 5-10% is normal
Basic stretching guidelines
Perform static stretching >2-3 times per week (daily is best)
Hold each stretch for 10-30 seconds (total of 60 seconds/muscle group)
2-4 repetitions for each stretch
Hold to a point of “tightness” (avoid pain – do not force a stretch)
Active warm up prior
Focus on major muscle groups