Quiz 2 Continued Flashcards
4 Types of Muscle Contractions
- Isometric
- Isotonic
- Isokinetic
4.Plyometric
forcefully contracting a muscle in a static position
no change in the length of muscle or the joint angle
Isometrics
+ of Isometrics (2)
Safe
Cheap
- of Isometrics (3)
- Can’t quantify
- Limited to specific angle
- Hard to motivate
moving a resistive force through a full range of motion
ex. free weights not machines
Isotonics
2 types of Isotonics
Concentric
Eccentric
Shortening of muscle
Concentric Isotonics
lengthening of muscle
Eccentric Isotonics
+ of Isotonics (4)
- complete ROM
- Develop optimal strength
- Develop skill & coordination
- Able to quantify
a dynamic resistive exercise that incorporates a full range of motion with the maximal force at all points in the range of motion.
speed is controlled
have a constant and consistent force which adjusts during the range of motion
uses all or more of muscle fibers
more often used in rehab
Isokinetics
must overcome inertia
different weight throughout because of momentum and gravity
slow and controlled movement that is not specific
cost
not always safe
can cheat the machine
- of isokinetics
max resistance through a full ROM
train at various speeds with specific effects due to the contraction speed **
agonist/antagonist training in series
less risk for overload
minimal muscle soreness
very safe
eccentrics
+ of isokinetics
maximizes the myotatic or stretch reflex
Plyometrics
developed from exercises used in 1960’s
designed to develop power characterized as “explosive”
concentrates on large amount of force in a very short period of time
Plyometrics
3 phases of plyometrics
- Vigorous stretch
- Transition Period
- Final Reaction & motion
Spring Loading - Eccentric contraction
ex. 1 ft box & when you land
vigorous stretch
as short as possible
ex. waiting before the jump
transition period of plyometrics
Concentric contraction
Explosiveness
Final reaction & Motion of Plyometrics
distal segment is fixed
multiarticular closed chain is created
Closed Kinetic Chain Exercises
distal segment is allowed to move freely through space
one joint will be worked at a time
Open Kinetic chain Exercises
foot or ankle is fixed
multiple joints simultaneously
ex. squat: ankle, knees, hips bending
preferred type of activity
example of closed kinetic chain exercises
Knee extension machines in the rec
Does not recommend
open kinetic chain exercises example
due to overexertion
specific indicators include
- acute muscle soreness
- muscle stiffness
- delayed muscle soreness
- muscle cramping
Muscle soreness
2 Types of Muscle Soreness
- Acute Onset
- Delayed Onset (DOMS)
pain felt during and immediately after exercise
Caused by:
-accumulation of lactic acid
-tissue edema (pumped up feeling)
Disappears within a few minutes to several hours after the exercise
Acute-onset Muscle Soreness
muscle soreness felt a day or two after a heavy bout of exercise
occurs within first 24 to 48 hours following exercise
peak intensity of discomfort somewhere between 24 to 72 hours until it has completely disappeared within 7 to 10 days
Delayed-onset Muscle Soreness
T/F : DOMS is not totally understood
True
2 Theories of DOMS’cause
- structural damage in the muscle membranes
- inflammatory reactions in the muscle
Primary indicator of DOMS
Eccentric action
T/F : Muscle Soreness only affects skeletal muscle
True
T/F: muscle soreness Does not result in any long term damage
True
T/F: muscle soreness is unavoidable
True
T/F: muscle soreness is self limiting to a few days
True
T/F: muscle soreness offers protection against redevelopment for at least 6 weeks
(may be due to adaptive process of healing)
True
reducing the eccentric component of muscle action during early training
starting training at a low intensity and gradually increasing it
Prevention of muscle soreness
4 reasons for Nutrition
- performance
- body composition
- healthy/injury
- competitive advantage
5 superior fuel benefits from nutrition
- more energy to train
- better practice = better performance
- enhanced energy during final minutes
- outwork the competition
- career longevity
5 roles of Nutrition
Hydration
Optimal nutrition via recovery, team meal & traveling
Educational functions
- AGGIE FIT labeling/offseason program
Supplement expertise
NCAA compliance
Sweat =
weight loss
Weight loss is a loss in
body fluid that regulates body tempt & lubricates tissue
electrolytes, Na, K, Cl, & Mg
Drink what size of amount of fluid every 20-30 minutes during activity at minimum ?
fist
Each pound of wt loss requires _ to __ oz of fluid for rehydration
16 to 20 oz
Consistent crampers- typically most fit,
most athletic players at their position
Sweat early and heavily
Sweat tastes salty
Visible grains of salt around face
Push sports drink, minimize water
(hyponatremia)
salty sweater
you need to minimize water intake
hyponatremia
What snacks would you encourage a salty sweater to eat?
salty snacks
- pretzels, popcorn, crackers, soups, cheese, peanut butter
- add 1/4 to 1/2 tsp salt to sports beverage
Global knowledge, research oriented, details, family history and lifecycle concerns, “how does this apply to me?”
what sex learner is this?
female
Typically, lower level of interest… PERFORMANCE, PERFORMANCE, PERFORMANCE…and vanity, professional team applications, visual learners, constant reinforcement, vulnerable to marketing/supplement claims, “don’t lecture me!”
what sex learner is this
male
T/F Both sexes have
Vulnerability with weight issues
Emotional eating
True
males have an ED tendency for
binge eat/drink
females have an ED tendency for
restrict (anorexia/bulimia)
Team meeting, cooking demo and shopping tour
Body Comp testing and 2-3 individual meetings
Results!
Team body fat: -4.3%
Team lean mass: +60.4#
Staff response:
Comprehensive plan
Impact on travel, operations
Women’s teams
Most male athletes are what type of learners
visual
3 types of nutrients
- Carbohydrate
- Protein
- Fat
Starch, like pasta, potatoes, rice, bread, cereal, pretzels, corn
Sugar, like juice, fruit and sweet drinks
Sweets, like cakes, cookies, pies, etc
Carbohydrates
Milk, eggs, meat, skinless chicken, fish, yogurt, beans, low fat cheese
Protein
Nuts, olives, avocado, and fish like salmon and tuna
Fried foods, salad dressings, whole milk
Fat
Nuts, olives, avocado, and fish like salmon and tuna
Good fat
Fried foods, salad dressings, whole milk
Bad fat
Please do not confuse your dietary needs with that of an athlete.
Match carb intake to your activity.
carbohydrates are fuel
Without enough carbohydrates, ___ is burned as fuel.
protein
Consumed within one hour of workout, carbs increase _____ by replenishing muscle _____.
endurance ; glycogen
Include _____ in every meal or snack.
Milk (skim, 1%, 2%)
Eggs
Skinless chicken or turkey
Fish
Meat
Cheese and yogurt
Beans
Nuts and nut butters
Proteins
Calories/protein/fat
Chicken wings (#6) 480/24/66
Chicken breast 220/28/1
Rib eye (6 oz) 450/42/30
Whole milk 150/7/8
Skim milk 90/7/1
Lean Protein
healthy fats enhance ____ & provide long term ____
immunity ; energy
TIMING ***
FOOD CHOICES
PHYSICAL DEMANDS
BODY COMPOSITION GOALS
Carbohydrate Digestion time
8 minutes to 2 hrs
Protein digestion time
4-6 hrs
Fat digestion time
6-8 hrs
Digestion requires
blood flow
Aggie Fit labeling:
Nutrition Rx: Be there, without being there!
Avoid walking student athletes through the line
Promote healthy, customized choices and empower the student athlete
Meal planning to “periodize” meals
Encourage foods without creating an inflexible environment
For example…
Football, once a week competition
Basketball, multiple competitions in one week
The Educational Training Table
Summer workouts + Supplements + Dieting for weight loss =
Trouble
Functional Foods
antioxidant & anti-inflammatory
Berries
Cherry, pomegranate, blueberry, cranberry juices
- Green and white teas
- No extracts due to NCAA guidelines
Watermelon, tomato, marinara (lycopene)
Olives, olive and canola oils, avocado
Tuna, salmon, etc
Nuts, nut butters, seeds (especially walnuts & almonds)
antioxidants & anti-inflammatory foods
what juice is heavily used at a&m
cherry juice - concern w/ the FDA about what’s in them
Eat a rainbow everyday
Eat whole foods/Eat from the earth
For proteins: the fewer legs, the better!
Negotiate a way to make favorites fit
Most of us know intuitively what is good for us to eat…
Make the environment conducive to success
Demonstrate that food is a priority over supplements
Athletes at all levels need coaching!
Coaches at all levels need professionals
Final Thought on Food
Nutritionist is “one who eats”
Anyone around an athlete may influence…
Athletes on a big stage are vulnerable
Supplement companies are great marketers
Eating disorders spread like a virus
All staff members need nutrition training! It takes time, effort and persistence to win coaches over.
Americans have lost the concept of “healthy weight.”
Challenges
8 Pieces of Information Gained by history
- Primary complaint
- Mechanism of injury (MOI)
- Area & nature of pain
- Functional Abilities
- Symptoms associated w/ injury
- Level of Consciousness
- Previous History
- Pre-existing medical conditions or medications
Where is the pain
What type is it
Understanding their 10 & your 10 are different
Area & nature of Pain