Questão 1
Questão
All of the following sections of the sarcomere shorten during a concentric muscle action EXCEPT the
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A-band
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Distance between Z-lines
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H-zone
Questão 2
Questão
The length-tension relationship of muscle is based on the following fact
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As muscle lengthens, the tension changes and is highest at the middle length.
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As muscle lengthens, the tension changes and is highest at the shortest length.
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As muscle lengthens, the tension changes and is highest at the longest length.
Questão 3
Questão
This ion, stored in the sarcoplasmic reticulum, is released into the sarcoplasm to signal the beginning of the contraction process
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calcium
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potassium
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hydrogen
Questão 4
Questão
Internal rotation of the hip takes place in this plane
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transverse
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frontal
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sagittal
Questão 5
Questão
The joint involving the femur and tibia is an example of this type of joint
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cartilaginous
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fibrous
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synovial
Questão 6
Questão
Josephine performs a biceps curl, lifting a weight from the extended arm position up to full flexion of the elbow. This movement provides an illustration of this type of lever system:
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first-class
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second-class
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third-class
Questão 7
Questão
All else being equal, this type of muscle fiber arrangement will be associated with higher forces
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bipennate
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longitudinal
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radiate
Questão 8
Questão
The primary substrate for a 50-meter sprint is
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creatine phosphate
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glucose
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protein
Questão 9
Questão
The general recommendation for dietary fat is
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25% of total calories
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30% of total calories
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35% of total calories
Questão 10
Questão
At the beginning of aerobic exercise, before reaching steady state, an individual will be in this state
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EPOC
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lactate threshold
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oxygen deficit
Questão 11
Questão
The hormone used illegally by some athletes to enhance red blood cell production in the body is
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ephedrine
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erythropoietin
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growth hormone
Questão 12
Questão
Change question. Did with Marisa. In order to lose 10 pounds, an individual will have to have a deficit of this many TOTAL calories
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3,500 kilocalories
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35,000 kilocalories
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7,000 kilocalories
Questão 13
Questão
All of the following are examples of training adaptations for aerobic exercise EXCEPT
Questão 14
Questão
All of the following are signs of overtraining EXCEPT
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increased maximal oxygen uptake
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decreased muscle glycogen
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increased muscle soreness
Questão 15
Questão
Which principle of training is based on the idea that one should target the sport-related energy pathways and muscle groups?
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specificity
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progression
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overload
Questão 16
Questão
Adaptations in all of the following contribute to increases in VO2max with endurance training EXCEPT
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heart rate
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stroke volume
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mitochondrial density
Questão 17
Questão
Sally spent her Spring break training in the heat in Florida. She pushed herself more than usual and refused to take off any days. On three days she doubled her workout by running her program in the morning and again in the evening. When she returned from break, she found that her resting heart rate was higher than normal. This increase in heart rate was likely due to this
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overtraining syndrome
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detraining
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overload
Questão 18
Questão
Which of the following is the most effective type of exercise for optimizing sport-specific muscular strength for well-trained athletes?
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core exercises
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structural exercises
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assistance exercises
Questão 19
Questão
This training goal requires the longest recovery time between sets:
Questão 20
Questão
Which of the following is an approximate rest interval for a middle distance runner performing 800-meter (875-yd) running intervals in 2 minutes?
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2 minutes
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4 minutes
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6 minutes
Questão 21
Questão
165-pound (75-kg) athlete has an average daily intake of 450 grams of carbohydrate, 75 grams of protein, and 100 grams of fat. What percent of the total kilocalorie intake is carbohydrate?
Questão 22
Questão
11a-pound (50-kg) marathon runner started her pre-race taper and chose to carbohydrate load prior to the race. Approximately how many grams of carbohydrates should she consume per day?
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100grams
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500grams
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880grams
Questão 23
Questão
6-foot, 2-inch (188 cm), 220-pound (100-kg) college football player desires to gain muscle weight. Which of the following should be his first nutritional priority if his current 3000 calories/day intake consists of 18% protein
(1.4g/kg), 55% carbohydrate (4.1 g/kg), and 27% fat (0.9g/kg)?
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increase calories
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increase protein
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decrease fat
Questão 24
Questão
During a single aerobic exercise session, oxygen is delivered to the working muscles at an elevated rate due to an increase in
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total blood hemoglobin
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cardiac output.
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blood glucose
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plasma volume
Questão 25
Questão
Which of the following identifies the layer of connective tissue enveloping a single muscle fiber?
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Endomysium
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Perimysium
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Epimysium
Questão 26
Questão
Which of the following lever classes has the fulcrum at one end and the effort is applied between the fulcrum and the load?
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First Class
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Second Class
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Third Class
Questão 27
Questão
Which of the following shoulder movements and planes of action are associated with the upward movement phase of the side lateral shoulder raise exercise?
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adduction/sagittal
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adduction/frontal
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abduction/frontal
Questão 28
Questão
How many amino acids must be found in your diet and cannot be manufactured by your own body?
Questão 29
Questão
Which of the following is not a byproduct of protein breakdown?
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Enzymes
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Hydrogen
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Nitrogen
Questão 30
Questão
An untrained college-aged athlete begins a resistance training program. After training for three weeks, her strength increases dramatically. Which of the following is the most influential factor responsible for this improvement?
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improved neuromuscular efficiency
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improved ratio of muscle to fat components
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increased cross-sectional area of Type I fibers
Questão 31
Questão
What is the MINIMUM amount of carbohydrates that a 132-pound (60 kg) competitive Olympic triathlete should consume on a daily basis?
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480 grams
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960 grams
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1,920 grams
Questão 32
Questão
Which of the following causes the greatest increases in bone mineral density?
Questão 33
Questão
A college American football player weighs 210 pounds and would like to increase his muscle mass and strength. He is currently consuming 2800 calories per day and that has allowed him to maintain his weight. If he wishes to gain 10 pounds in 8 weeks, about how many extra calories should he consume each day?For the purposes of this question assume all of the weight gain will be lean body mass.