Derrick and 3 of his friends are participating in an outdoor 3 on 3 BB tourney in early august. during the tourney it is mostly sunny, temperature in the low to mid 90's and high humidity (approximately 70%). answer the following questions:
under the environmental conditions, what is the primary means of thermoregulation:
B. evaporation
Derrick and 3 of his friends are participating in an outdoor 3 on 3 BB tourney in early august. during the tourney it is mostly sunny, temperature in the low to mid 90's and high humidity (approximately 70%). answer the following questions:
during the tourney Derrick suffers from muscle cramps. This may have occurred to because of:
C. neuromuscular fatigue
Derrick and 3 of his friends are participating in an outdoor 3 on 3 BB tourney in early august. during the tourney it is mostly sunny, temperature in the low to mid 90's and high humidity (approximately 70%). answer the following questions:
due to the high heat and humidity one of derricks teammates is experiencing nausea, chills, and seems to be confused. at the medical tent they might diagnosis him with:
A. heat stroke
Derrick and 3 of his friends are participating in an outdoor 3 on 3 BB tourney in early august. during the tourney it is mostly sunny, temperature in the low to mid 90's and high humidity (approximately 70%). answer the following questions:
which electrolyte do we lose the greatest amounts of in sweat?
D. sodium
Derrick and 3 of his friends are participating in an outdoor 3 on 3 BB tourney in early august. during the tourney it is mostly sunny, temperature in the low to mid 90's and high humidity (approximately 70%). answer the following questions:
what organ is responsible for keeping the core body temperature in a safe range?
hypothalamus
Derrick and 3 of his friends are participating in an outdoor 3 on 3 BB tourney in early august. during the tourney it is mostly sunny, temperature in the low to mid 90's and high humidity (approximately 70%). answer the following questions:
how much body mass would need to be lost before the players saw a decline in muscular endurance?
3-4%
Derrick and 3 of his friends are participating in an outdoor 3 on 3 BB tourney in early august. during the tourney it is mostly sunny, temperature in the low to mid 90's and high humidity (approximately 70%). answer the following questions:
Discuss the metabolic, cardiovascular, and thermoregulatory factors that might decrease performance with dehydration in a hot environment:
thermoregulationincreased core temperature
decreased sweat rate and skin blood flow
metabolicdecreased VO2max
decreased lactate threshold
increased glycogen use at given intensity
cardiovasculardecreased plasma volume
decreased stroke volume
increased HR
decrease in overall cardiac output
Jerry has been resistance training for the last 2 years. During this time he has discovered that you are an exercise scientist and was wondering if you would answer some questions for him.
he noticed that it took a couple of months before his muscles got any bigger, but yet he got stronger right away, what adaption was the main cause for this?
A. neurological
Jerry has been resistance training for the last 2 years. During this time he has discovered that you are an exercise scientist and was wondering if you would answer some questions for him.
Jerry is very interested in getting bigger. what must he change from his classic lifting routine of 5 sets and 5 reps for each exercise to enhance this?
D. increase the # of reps in each set
Jerry has been resistance training for the last 2 years. During this time he has discovered that you are an exercise scientist and was wondering if you would answer some questions for him.
which of the following muscle fiber types will jerry likely not use while he is trying to increase his muscle size:
A. IIx
Jerry has been resistance training for the last 2 years. During this time he has discovered that you are an exercise scientist and was wondering if you would answer some questions for him.
jerry was told by someone that growth hormone helps with protein synthesis. what part of the body is this released from?
B. anterior pituitary gland
Jerry has been resistance training for the last 2 years. During this time he has discovered that you are an exercise scientist and was wondering if you would answer some questions for him.
if he slows down the lowering of the weight during his repetitions this will increased the time that his muscles are in which muscle action?
eccentric
Jerry has been resistance training for the last 2 years. During this time he has discovered that you are an exercise scientist and was wondering if you would answer some questions for him.
during his training programs what is the major by product of his muscles?
lactate or CO2
Jerry has been resistance training for the last 2 years. During this time he has discovered that you are an exercise scientist and was wondering if you would answer some questions for him.
Jerry is curious how muscles actually contract. explain this to jerry from a neuromuscular perspective:
dendrites receive the signals
travels to the axon hillock
fires
release ACh
ACh travels down the T tubles
to the sarcoplasmic reticulum
calcium is released
calcium binds to troponin
tropomyosis moves back
cross bridge is formed
Jenna is an elite track athlete. Jenna's primary event is the 100 meter. The 100 is an all out sprint event. She just completed the 100 at a track meet in a time of 12.5 seconds. answer the following questions about this scenario.
what was the primary energy system that jenna used during the race?
B. atp-pcr
Jenna is an elite track athlete. Jenna's primary event is the 100 meter. The 100 is an all out sprint event. She just completed the 100 at a track meet in a time of 12.5 seconds. answer the following questions about this scenario.
what is her most likely RER during a race?
B. 1.0 only carbohydrate (anaerobic)
.70 is from fat only (triglycerides)
Jenna is an elite track athlete. Jenna's primary event is the 100 meter. The 100 is an all out sprint event. She just completed the 100 at a track meet in a time of 12.5 seconds. answer the following questions about this scenario.
what byproducts are created throughout her race?
D. co2
Jenna is an elite track athlete. Jenna's primary event is the 100 meter. The 100 is an all out sprint event. She just completed the 100 at a track meet in a time of 12.5 seconds. answer the following questions about this scenario.
as an elite sprinter, what would you guess Jenna's body fat % to be?
A. 15%
Jenna is an elite track athlete. Jenna's primary event is the 100 meter. The 100 is an all out sprint event. She just completed the 100 at a track meet in a time of 12.5 seconds. answer the following questions about this scenario.
if she were running a 400 m race, she would form atp from what energy system?
anaerobic glycolysis
Jenna is an elite track athlete. Jenna's primary event is the 100 meter. The 100 is an all out sprint event. She just completed the 100 at a track meet in a time of 12.5 seconds. answer the following questions about this scenario.
at the sound of the gun jenna's heart rate, respriation rate, and force of muscle contraction were increased by what horomone?
epinephrine
Jenna is an elite track athlete. Jenna's primary event is the 100 meter. The 100 is an all out sprint event. She just completed the 100 at a track meet in a time of 12.5 seconds. answer the following questions about this scenario.
weather can have an affect on the performance of athletes. Discuss whether Jenna would be more affected by an extremely cold or an extremely hot environment and why:
exterme coldif you preform anaerboic activity, more likely to be influenced by cold
decreased neuromusclar activity
decreased force velocity
reduced force production
reduced nerve conduction veloicty
reduced power out put
decreased time to peak power
discuss the factors contributing to energy production and fatigue in the following maximal effort performances:
B. performance under 10 seconds: ATP-PCr
limited supply in muscles, so fatigue.. also lack of o2 will cause fatigue
b. performance ranging from 10-180 seconds: anaerboic metabolism 40-90%, aerobic metabolism 10-60% H+ build up, decreased muscle pH causes fatigue
c. aerobic performances lasting 3-20 minutes: aerobic metabolism, ETC, krebs...training, environment, Vo2max, muscle fiber type (I) can effect preformance... muscle glycogen depletion, increased acidity, incrased H+, cause fatigue
d. aerobic performance lasting 20-60 minutes: aerobic metabolism
e. aerobic performance lasting 1-4 hours: beta oxidation.. envrionment and hydration can have an affect.
discuss the pros and cons of living at altitude and competing at sea level:
cons at altitudecant train at same intensity
decreased Vo2max
pro at altitudeincreased RBC concentration
discuss lactate threshold, the primary energy source system it effects, the physiological mehcanisms affecting lactate threshold, and how to train to improve lactate threshold:
