Big Giant List of CrossFit Questions Flashcards
What are type I slow twitch muscle fibers?
Sustained muscular endurance at low intensities
What are type 2a muscle fibers?
Fatigue resistance fibers with less rapid force production than Type 2x; a mix of type 1 and type 2x, with comparable tension that use both aerobic and anaerobic energy systems. These fibers have a higher oxidative capacity and fatigue more slowly than type 2x
What evidence indicates type 2 fiber activity?
Lactate in muscles and blood
Aerobic/interval training outcome
Oxidative metabolism of type I fibres (Enzyme concentration, size and number of mitochondria.)
What is the outcome of anaerobic training?
Increased concentration of anaerobic enzymes
What does conventional strength training not improve?
Cardiac function or blood composition/volume
Conventional strength training will change _________
Muscle capillarisationSize increase = greater spacingCAPILLARY DILUTION
Metcon training prevents _________
Capillary dilutionChallenges body to deliver oxygen/fuel and remove metabolites.
Type IIb fast twitch muscle fibres(Type IIx)
Produce high force levels quicklyFatigue quickly
1k runMax set of pull-ups.3 factors introduced by run.
- Blood flow to upper body delayed by run.2. CNS must re-coordinate.3. Psychological: FEELS harder.
Factors affecting testosterone levels
Large muscle group exercises.Heavy resistance work (1-3RM).Moderate to high volume.Short rest intervals.
Angie
100 pull-ups100 push-ups100 sit-ups 100 squats20mins continuous work.Aerobic.
Barbara
5RFT20 pull-ups30 push-ups40 sit-ups50 squats3min restRoughly 1:1 work:restAerobic interval.
Chelsea
30min EMOM5 pull-ups10 push-ups15 squatsRoughly 2:1 work:rest (40:20secs)Anaerobic interval.
GPPThree key reasoning points
General Physical Preparedness Base of fitness = Strong foundations upon which to build.Greater margin for improving performance in elite athletes by improving GPP, makes sport specific training more efficient.Training/physiology not so well understood that specialisation S&C is optimally effective.
An individual can not reach their genetic potential in all activities because…
- Long endurance events are detrimental to strength training, tissue used for fuel.2. Upper body mass resulting from strength training makes endurance events more difficult.3. Concentrations of aerobic and anaerobic enzymes can not be maximised at the same time.4. Training certain energy systems/muscle groups detracts from training others. Simply not enough time to maximise everything. Even given time, fatigue would compromise training.
Astrand
Major evolutionary adaptations “consistent with habitual physical activity, including endurance and peak effort alternated with rest.”Reasoning behind ‘high intensity’.
The ten fitness domains
Cardiovascular and respiratory enduranceStaminaStrengthFlexibilityPowerSpeedCoordinationAgilityBalanceAccuracy
CrossFit definition of athlete
A person who is trained or skilled in strength, power, balance and agility, flexibility and endurance.’
Measurable parameters of health
Blood pressureCholesterol Heart rateBody fatMuscle massFlexibility Strength
What are the three measures of health?
FitnessWellnessSickness
Hierarchy of effort and concern
Diet: Lays molecular foundation for fitness and healthMetcon: Builds capacity in the three metabolic pathways; aerobic, lactic, phosphocreatine Gymnastics: Establishes functional capacity for body control and ROMWeightlifting/throwing: Develop ability to control external objects and produce powerSport: Applies fitness in competitive atmosphere with more randomised movements and skill mastery
Examples of ‘fringe athletes’
Sumo wrestlerTriathleteMarathonerPower lifter
Energy is derived aerobically when ________
Energy is derived aerobically when oxygen is utilised to metabolise substrates derived from food and liberates energy.>90secs in durationLow/moderate power output
Energy is derived anaerobically when ________
Energy is derived aerobically when energy is liberated from substrates in the absence of oxygen.2 systems: Phosphogen + lactic acid
Benefits of Olympic lifting
Explosiveness/muscle activationCore to extremity sequencingDevelopment of;StrengthMusclePowerSpeedCoordinationVertical leapMuscular endurance Bone strengthMaximum oxygen uptake
Benefits of gymnastics
Improvement of strength to body weight ratio.Skill developmentImprovement of;Coordination BalanceAgilityAccuracyFlexibility
Limitations of a routine
Any routine, no matter how complete, contains within its omissions the parameters for which there will be no adaptation. The breadth of adaptation will exactly match the breadth of stimulus.’
Neuroendocrine adaptation is ________
Neuroendocrine adaptation is a change in the body that affects you neurologically or hormonally.
Factors affecting neuroendocrine adaptation
Heavy load weight training Short rest periodsHigh heart rateHigh intensity training
Definition of power
Time rate of doing work.Power is defined as intensity and vice versa.
“Athletes are weakest at the margins of their exposure.”Give an example.
If you only ever cycle 5-7miles in each training session you will test weak at less than five and greater than seven miles.True for;Range of motionLoadRestIntensityPowerEtc
The importance of functional movements are __________
The importance of functional movements are twofold;They are mechanically sound and therefore safe.They elicit a high neuroendocrine response.
The four dominant CrossFit themes
Neuroendocrine adaptationPower (Intensity)Cross-TrainingFunctional movements
What are the aims of CrossFit?
Forge a broad, general and inclusive fitness.To build a program that would best prepare trainees for any physical contingency - prepare them not only for the unknown but the unknowable.
The CrossFit prescription.
Constantly varied, high intensity, functional movement.
Break down ‘power’.
Three attributes;LoadDistanceSpeedTherefore; Move large loads over long distances and to do so quickly.Note: Intensity is defined exactly as power.
Characteristics of low GI foods
Limited shelf lifePredominantly found on the perimeter of the grocery store
One protein block in grams
7g
One block of carbs in grams
9g
One block of fat in grams
1.5gAssumes 1.5g contained in protein source. A meal therefore contains 3g of fat per block.
What is the glycemic index?
A measure of a food’s propensity to raise blood sugar.
Dr Uffe Ravnskov on how we can be certain his work was not biased.
We can’t. “Everybody must gain the truth in an active way. If you want to know something you must look at all the premises yourself, listen to all the arguments yourself, and then decide for yourself what seems to be the most likely answer.’
Heart disease: Traditional model v deadly quartet
Traditional modelObesity causes glucose intolerance, hypertension and hypertriglyceridemiaDeadly quartetObesity (Specifically upper body), glucose intolerance, hypertension and hypertriglyceridemia all correlates of hyperinsulemia.Obesity is a symptom, not a cause.
Blood cholesterol v dietary cholesterol
Body produces 3-4x the cholesterol consumed.Production increases when little is consumed, decreases when more is consumed.No correlation between blood cholesterol and artherosclerosis (Coronary heart disease precursor/correlate). Sufferers just as likely to have low blood cholesterol. Degree of artherosclerosis on autopsy unrelated to diet.
Things reduced by intermittent fasting
Blood lipids (Triglycerides and LDL cholesterol)Blood pressureMarkers of inflammation Oxidative stressRisk of cancer
Things increased by intermittent fasting
Cellular turnover and repair Later in the fast:Fat burningGrowth hormone Metabolic rate
Things improved by intermittent fasting
Appetite controlBlood sugar controlCardiovascular functionEffectiveness of chemotherapy
GLUT4 purpose, types and research results
Glucose transporterInsulin and exercise both capable of lowering blood glucose levels (Imports into cells to be used/stored)Clarifies why post workout carbs don’t elicit as large an insulin spike as expected.Diabetics benefit from exercise (See above.) No side effects as with prescription drugs.
Continuum of adaptation persistence (Most to least persistent)
HypertrophyStrengthMuscular endurance PowerTechnique Cardiovascular Endurance
Carbohydrate and protein hormonal responses
CarbohydrateInsulin. Storage hormone.ProteinGlucagon. Has an inhibitory effect on insulin.
Outline gymnastics proficiency in the warmup.
Incrementalism, patience and practice make basic calisthenics easy.Easily incorporated into a warmup for regular exposure.
Essential features of a CrossFit warmup
StretchHip/leg extensionTrunk/hip extension and flexion Pushing and pulling movements
Foundations of effective training
Teaching: Articulate and instruct mechanics of each movement based on individual needs and capacity.Seeing: Discern good from poor movement and identify faults when athlete is static or in motion.Correcting: Facilitate better mechanics using visual, verbal and tactile cues. Includes ability to prioritise faults. Dependent on capacity in teaching and seeing.Group Management: The ability to organise and manage time, space, equipment and participantsPresence and Attitude: The ability to create a positive and engaging learning environment.Demonstration: Provide athletes with an accurate visual example of movement at hand. Lead by example.
Seven steps to the overhead squat
Strong squat using dowel or PVCDislocates, narrow the grip incrementallyDislocates while descending in the squatFind frontal plane while descendingStand straight and tall, dowel overheadSlowly squat, keeping dowel in frontal planeAdd 2.5kg plate etc
Difference between American and Russian swing
Range of motionPower output (Greater amplification than expected)Heart rate
Recommended deadlift frequency
Once per week at max loads
Symptoms of cardiorespiratory failure
Repetitions smooth up until stoppingPale skinHigh heart rateNon communicative Can’t stand unassisted Related to cardiorespiratory endurance
Symptoms of muscular failure
Reps slow down, final rep only partially completeAthlete is flushedLow ventilation and heart rateCommunicative on unloadingRelated to stamina
Contrast cardio respiratory endurance with stamina
CE: The ability of body systems to gather, process and deliver oxygen.Stamina: The ability of body systems to process, store, deliver and utilise energy
Cardiorespiratory endurance possesses breadth and depth. Explain.
Depth: cardiorespiratory capacityBreadth: Measure across multiple domains.Does not exist or develop independently of neuromuscular function.Utility and advantage depends on manner/mode of development (Transferability of capacity)
General Adaptation Syndrome Theory
Organisms go through a series of physiologic responses and adaptations to stress to ensure survival on subsequent exposures later in life cycle.Practical application: homeostasis must be disrupted in order for adaptation to occur.
LSD training incompatible with General Adaptation Syndrome Theory. Why? VO2 Max example.
In conventional 20-60min prescriptions oxygen demand is easily met by supply.This type of training does not - and cannot - disrupt homeostasis.With no homeostatic disruption there is no adaptation.
LSD training improves endurance without improving VO2 Max. How?
LSD training is energy substrate (Glycogen) depleting and can also exceed body’s ability to metabolise fat for energy.Both of these are significant homeostatic disrupters within the General Adaptation Syndrome theory and result in improved endurance.Stamina v endurance
Adaptation induced by interval training
Exceeding oxygen consumption capacityRequires body to use primarily glycogen (Anaerobic glycolysis)NOTABLE: Lactic acid accumulation is a correlate, not cause of adaptation.
Oxygen consumption does not relate strongly to delivery. Explain.
VO2 Max adaptation occurs in the muscle (The consumption), not in the heart, lungs or vasculature (The delivery system)
Four principles of physiologic conditioning
OverloadSpecificityReversibilityIndividual differences
Overload
If you work the body harder than it is used to, it will adapt and improve in that area.Three parameters: Frequency, intensity, duration
Routine is to be avoided. Why?
- Avoids training plateaus2. Forces work on weaknesses3. Variance keeps a program interesting
Specificity
Specific exercise elicits specific adaptation.Specialisation comes at a cost.
Reversibility
Once you reach a desirable level of fitness activity must be maintained to prevent deconditioning.
Individual differences
One size does not fit all.Individuals have different areas they need to work on.Genetics play a role in strengths and weaknesses.
Physiological factors that determine VO2 Max
- Ability of the heart to pump blood2. Oxygen carrying capacity (Hemoglobin content) of blood3. Ability of working muscles to accept a large blood supply (Capillarisation)4. Ability of muscle cells to extract oxygen and use it to produce energy (Number of mitochondria and aerobic enzymes)
Why is VO2 Max a poor test of aerobic capacity?
VO2 Max is specific to what you are doing.Test is conducted on stationary bike or treadmill.There is no true movement-agnostic VO2 max, simply a range of maxes (Breadth and depth)
Alternative to VO2 Max test.
CrossFit benchmark workouts.
Characteristics defining FT/ST fibres
Mitochondria density Capillary densityOxidative/glycolytic enzyme activityCreative phosphate storesContraction velocity
Categories of dysfunction (Starrett)
Pathological: Disease, infection, medical intervention requiredCatastrophic: Car crash, sports injury etc^ 1% Unavoidable Overtension: Good positions but tight. Think rusty door hingeOpen circuit fault: Optimal position not achieved, body finds stability wherever possible^ 99% Avoidable
MechanicsTechnique FormStyle
Mechanics: Physics of the movement, the angles, velocityTechnique: The method that will help me successfully complete the motionForm: Attaching normative values to the movement, “good”/”bad” technique Style: Signature that adds nothing to the above
Hans Selye
General adaptation syndrome3 stages: Alarm, resistance, exhaustion
Characteristics of a task priority workout
Intensity conferred by;PaceLoadRepsSome combination of the aboveFirst round hard but possibleSecond round onwards, pacing, rest and rep strategies should be employed to make the task manageable.If second round can be completed without trouble, the elements are too easy.
Time priority
Time is set, work rate variesAMRAP
Characteristics of a time priority workout
Challenge manifests only through multiple cyclesElements themselves not significant outside of the pace required to maximise rotations
Task priority
Task is set, time variesEg. 3RFT
The three sleep hormones
Growth hormoneLeptin Cortisol
Growth hormone
Aids bone and muscle recovery50-60% released during sleep, most of which is in the first half.Stimulates release of triglycerides from fat ie more energy from fat when we get adequate growth hormone
Leptin
Appetite suppressant during sleepRegulates insulinLack of sleep reduces leptin levels, messing with cravings and diet
Cortisol
Stress hormone only meant during fight or flight responsesStops use of energy from foodCauses weight gain and breakdown of muscleIncreased by stress and overtraining Reduced by sleep
CrossFit.com programming demonstrates effective variance by:
Not following a set pattern for which days certain elements occurIncluding all movements regardless of skillAllowing ample opportunities for assessmentCreating simple, short, high-intensity pairings
How to optimize CF programming
Working Weaknesses: Improves overall fitness but must not become a bias. Improve area, maintain, move on.Scaling Effectively: a trainer needs to review the original workout for its intended s lus, to include:movement functionsloading parameterstimeframevolume of repetitions
Common programming errors
Lack of regular assessment to determine effectivenessVariance is not applied correctly:randomization of workout variablesbiasing certain variablesemphasizing non-essential elementsLack of higher-skill developmentExcessive volumeAssumption that games standards are best representation of movement or fitness
Drills to become a ‘great’ coach
Gauge reactions to your coaching, are your words affecting performance?Listen. Just listen. Don’t prepare next statement.Engage a newer member for 5mins after class.Defend those who aren’t present.Coach using only positive statements.Only be constructive.
Air Squat
Setup:Shoulder width stanceExecution:Hips descend back & downLumbar curve maintainedKnees in line with toesHips descend lower than kneesHeels downFinish:Full hip & knee extension
Air Squat: Faults/fixes
Flexion in lumbarCue: Lift chestHave athlete raise arms during descentWeight on toesExaggerate weight on heels by lifting toesTactile cue to push hips back and downDepth Relentless cue of “Lower”Target (Medball/box/plates)Initiation with kneesTactile cue for hips back and downBlock knees with hand Knees track inCue “Knees out” or “Spread ground apart w/ feet”Tactile cue on outside of knee
Front Squat
Setup:Same as air Squat plus…Hands just outside of shouldersLoose fingertip grip on barElbows high (Upper arm parallel to ground)Execution:See air Squat Finish:See air Squat
Front squat faults/fixes
As air Squat, plus…Bar away from torso:Check that grip is open, bar on fingertipsCue “Elbows high”Adjust rack manually Elbows drop during squat:Tactile/verbal adjustment
What is the crossfit prescription?
constantly varied, high-intensity, functional movement
What are functional movements?
Universal motor recruitment patterns
Are compound movements single or multi joint?
multi joint
What 3 attributes qualify functional movements for the production of high power?
Load, distance and speed
Definition of intensity
Power
The independent variable most commonly associated with maximizing favorable adaption to exercise
Intensity
The 3 most important and interdependent faceets of any fitness program
Safety, efficacy, and efficiency
Safety, efficacy, and efficiency of any fitness program can be supported only by
measureable, observable, repeatable facts
Crossfit is
empirically driven, clinically tested, and community developed.
In implementation crossfit is
the sport of fitness
What is the power to produce an effect?
Efficacy
What type of program is crossfit?
A core strength and conditioning program
Crossfit is not a specialised fitness program but
a deliberate attempt to optimise physical competence in each of the ten recognised fitness domains.
What are the ten fitness domains?
Cardiovascular and respiratory endurance, stamina, strength, flexibility, power, speed, coordination, agility, balance, and accuracy.
Why was the crossfit program developed?
To enhance an individual´s competency at all physical tasks.
What are the 3 metabolic pathways?
glytolitic, oxidative and phosphagen.
Crossfit works with
compound movements and shorter high intensity cardiovascular movements and shorter high intensity cardiovascular sessions
What is the Webster’s Dictionary definition of an athlete
a person who is trained or skilled in exercises, sports, or games requiring strength, agility, or stamina
Crossfit definition of an athlete
a person who is trained or skilled in strength, power, balance and agility, flexibility, and endurance
What is the crossfit method
to establish a hierarchy of effort and concern that builds as diet, metabolic conditioning, gymnastics, weightlifting and throwing, and sport
Diet
lays the molecular foundations for fitness and health
Metabolic Conditioning
builds capacity in each of three metabolic pathways, beginning with aerobic, then lactic acid, and then phosphocreatine pathways
Gymnastics
establishes functional capacity for body control and range of motion
Weightlifting and throwing
develop ability to control external objects and produce power
Energy is derived aerobically when
oxygen is utilized to metabolize substrates derived from food liberates energy
Examples of aerobic activity
running on treadmill, swimming a mile
Energy is derived anaerobically when
energy is liberated from substrates in the absence of oxygen
examples of anaerobic activity
running a 100 meter sprint, squatting, and doing pull-ups
Two olympic lifts
The clean and jerk and the snatch
The proper sequence to apply force to muscle groups
the center of the body to its extremities
The only lifts shown to increase maximum oxygen uptake
Olympic lifts
A change in the body that affects you either neurologically or hormonally
Neuroendocrine adaptation
the time rate of doing work
The time rate of doing work
functional movements
Mechanically sound movements that elicit a high neuroendocrine response
Protein
should be lean and account for 30% of total caloric load
carbohydrates
should be predominantly low-glycemic and account for about 40% of total caloric load
fat
should be predominantly monounsaturated and account for about 30% of total caloric load
Base your diet on
garden vegetables
Webster’s dictionary of fitness
ability to transmit genes and be healthy
training
Activity that improves performance through a measurable organic change in the body
practice
Activity that improves performance through changes in the nervous system
phosphagen pathway
metabolic pathway that dominates the highest-powered activities that last less than ten seconds
glycolytic pathway
metabolic pathway that dominates moderate-powered activities that last up to several minutes
oxidative pathway
metabolic pathway that dominates low-powered activities that last in excess of several minutes
what two metabolic pathways are anaerobic
phosphagen and glycolytic
The key to developing the cardio system without an unacceptable loss of strength, speed, and power is
interval training
What metabolic pathway is the dominant pathway in intervals of 10-30 seconds of work followed by rest of 30-90 seconds repeated 25-30 times
phosphagen pathway
gymnastics
All activities like climbing, yoga, calisthenics, and dance where the aim is body control
Which is considered a sport, weightlifting or weight lifting?
weightlifting
The enemy of progress and broad adaptation
routine
health
Increased work capacity across broad time, modal, and AGE domains
work capacity
The ability to perform real physical work as measured by force x distance/time
Physical output can be measured in terms of
foot-pounds/minute
Crossfit dietary recommendation for optimal physical performance is to eat
meat and vegetables, nuts and seeds, some fruit, little starch, and no sugar