exercise physiology
Pickle juice has some scientific evidence to support its use for fighting muscle cramps.
T
Taking a taste of mustard & eating bananas & oranges can help remedy muscle cramps.
T
The fitter & stronger you are, the more nuclide you have in your muscle cells.
T
The ratio of fiber types is determined by genetics.
T
The response to training will be less than optimal if the client doesn't get enough rest.
T
The very nature of a muscle cramp indicates an imbalance between the motor nerve & muscle.
T
There is no single cause for muscle cramps
T
Type II fibers produce and use energy faster.
T
Whole-body cramps are considered the worst of all cramps.
T
Work ethic, dedication, rest, nutrition, and hydration also impact training adaptation.
T
An enormous protein that acts like a spring inside each skeletal muscle cell. Correct! Titin
TITIN
Satellite cells are responsible for most of the muscle growth that occurs from training.
TRUE
Strength training wakes up satellite cells in your muscles.
TRUE
Which letter correctly identifies the nuclei?
A
The human body has
10-20 billion satellite cells lying dormant
The study of how the body responds to exercise and physical training.
1Exercise Physiology 2.
Which letter correctly identifies the sarcolemma?
B
Which is the fourth step that must occur before a muscle contraction can occur?
Ca2+ (Calcium ions) are released
Genetic makeup has no impact on the capacity to build strength, speed, and endurance.
F
One of the adaptations to aerobic training is decreased mitochondria.
F
The additional nuclei may explain why formerly fit people improve slower than inexperienced people
F
The gastrocnemius (calf) muscle in a distance runner would most likely have _
Greater % of type I muscle fibers
The posterior deltoid (shoulder) muscle in a cyclists would most likely have
Greater % of type I muscle fibers
One of the adaptations to aerobic training is increased ventilation of the lungs
T
The motor neurons that innervate type II motor units are
Larger in diameter
Which muscle protein aids in maintaining the structure of the muscle fiber?
Titin
The most common muscle cramp occurs when ________ contract(s) & remain(s) contracted.
a single muscle group
Large increases in muscle mass from testosterone & other anabolic steroid use
continuously stimulate production of contractile proteinS
In response to strength training,
more contractile proteins are produced.
In response to aerobic training,
more mitochondria are enabled for energy production.
For movements that require maximal strength, a max # of available motor units are activated.
T
Heat cramps are thought to result from dehydration and salt loss during prolonged exercise. Correct!
T
Initial gains in strength results from increased recruitment of motor units.
T
Most muscles are roughly 50% fast-twitch and 50% slow-twitch.
T
Muscles adapt to strength training by producing more actin, myosin, and titin.
T
Muscles cannot function in isolation.
T
Muscles contract only in response to nerve input.
T
Not all muscle cramps are the same.
T
One of the adaptations to aerobic training is increased blood flow.
T
One of the adaptations to aerobic training is increased mitochondria.
T
Satellite cells are responsible for most of the muscle growth that occurs in early childhood.
T
Sex (gender) plays a role in the capacity for adaptations to training.
T
Type I fibers have more mitochondria allowing more sustained energy production.
T
Which muscle protein is important in muscle strength when stretched (eccentric contractions)?
TITIN
"No pain, no gain" is bad advice that can result in injury or worse.
T
A single motor neuron may be connected to dozens, hundreds, or even thousands of muscle cells.
T
All skeletal muscle cells have tiny satellite cells attached to their sarcolemma.
T
Anaerobic training programs can be effective at improving aerobic capacity & performance. Correct!
T
As you age, the amount of nuclei appear to stay put over timE
T
Beyond the initial gain in strength, increase in strength takes weeks & months.
T
For movements that require little strength, only a few motor units are activated
T
The motor neurons that innervate type II motor units are
Capable of developing more force when activated.
Which letter correctly identifies the sarcoplasm?
D
When the motor neuron fires, all of the muscle cells in that motor unit contract slightly.
F
Skeletal muscle cells divide like all other cells. Even a little dehydration impairs the body's physiological responses. Correct! True Question 20 / 1 pts People who sweat should drink the less fluids than a person who doesn't sweat. You Answered True Correct Answer False Question 31 / 1 pts Your thirst mechanism is designed to protect you against Correct! severe dehydration any form of dehydration mild dehydration Question 41 / 1 pts How much fluid should you drink on daily basis, regardless of activity level? 1 Liter 1 Gallon 2 - 8oz glasses Correct! 2 Liters Question 51 / 1 pts As body fat increases, the percent of water in the body increase doubles Correct! decreases stays the same Question 61 / 1 pts When you allow yourself to become dehydrated Correct! All listed blood volume shrinks blood flow to the muscles reduces blood flow to the skin reduces Question 70 / 1 pts The U.S. Institute of Medicine estimates that adult women should consume _____ water each day. You Answered 125 oz Correct Answer 90 oz 16 oz 8 oz Question 81 / 1 pts Even a little dehydration impairs the body's mental performance. Correct! True False Question 91 / 1 pts Feces accounts for large amounts of water loss each day. True Correct! False Question 101 / 1 pts Dehydration negatively impacts cardiac output. Correct! True False Question 111 / 1 pts People who sweat should drink the same amount of fluids as a person who doesn't sweat. True Correct! False Question 121 / 1 pts Exercise-related hyponatremia is very common. True Correct! False Question 131 / 1 pts Exercise-related hyponatremia is not common. Correct! True False Question 141 / 1 pts Each breath you exhale contains water. Correct! True False Question 151 / 1 pts The U.S. Institute of Medicine estimates that adult men should consume _____ water each day. 16 oz 8 oz 90 oz Correct! 125 oz Question 161 / 1 pts Sucrose is the body's most important fuel. True Correct! False Question 171 / 1 pts Which enables cells to keep a ready supply of carbohydrate energy close at hand. Fats Proteins Correct! Carbs All Listed Question 180 / 1 pts Carbs consumed during exercise are absorbed slowly & converted to glucose for your muscles. You Answered True Correct Answer False Question 191 / 1 pts Of the 20 amino acids that the body needs, how many have to be supplied by food? 20 13 Correct! 9 5 Question 201 / 1 pts All skeletal muscle cells have tiny satellite cells attached to their sarcolemma. Correct! True False Question 211 / 1 pts Since skeletal muscle cells do not divide, satellite cells are another way to hypertrophy. Correct! True Question 221 / 1 pts Satellite cells are always active. True Correct! False Question 231 / 1 pts Which letter correctly identifies the myofibril? D Correct! E A B C Question 241 / 1 pts Using weight-bearing and nonweight-bearing exercises is training is a good idea. Correct! True False Question 251 / 1 pts Most types of training that are weight bearing or repeated high impact benefit bone & ligaments Correct! True False Question 261 / 1 pts Men typically experience more hypertrophy due to increased levels of testosterone. Correct! True False Question 271 / 1 pts Genes determine the speed & magnitude of the response to training. Correct! True False Question 281 / 1 pts For movements that require little strength, none of the possible motor units are activated. True Correct! False Question 291 / 1 pts Type II fibers are larger than types I fibers. Correct! True False Question 301 / 1 pts Which part of a muscle cell helps speed up reactions? Correct! Enzymes Contractile Proteins Nuclei Mitochondria
False
The motor neurons that innervate type I motor units are
Smaller in diameter
