Big Giant List of CrossFit Questions Flashcards
(374 cards)
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