Quiz
Exam Prep Exercise Science Practice Exam
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Perguntas do quiz (30)
1Which of the following does the cross-bridge attach to during the excitation-contraction coupling phase?
- AMyosin
- BActin
- CTroponin
2A 22-year old soccer player begins resistance training for the FIRST TIME. All major muscle groups are included. Which of the following BEST explains an increase in lower-extremity strength after 3 weeks?
- AMuscle hypertrophy
- BMuscle hyperplasia
- CImproved neuromuscular function
3The energy system used during exercise depends on which of the following training variables?
I. Mode
II. Duration
III. Frequency
IV. Intensity- AI and IV only
- BII and IV only
- CIII and IV only
4When a motor unit is stimulated, all of its innervated muscle fibers fully contract due to
- Athe size principle
- Bthe principle of selective recruitment
- Cthe all-or-none law
5An elite aerobic endurance runner preparing for a 26.6-mi marathon will have a high concentration of which of the following types of muscle fibers?
- AType I
- BType IIa
- CType IIx
6Michelle runs 30-40 mi/week (10-12 Sun: 8 Mon; 6 Wed; 8 Fri) and wants to improve her 10-k time, currently at 74 min. Which of the following is the MOST appropriate modification to her program?
- AIncrease her long run to 15 miles
- B150m track repeats
- C400-800m track repeats
7Which of the following will occur as a result of shortening rest periods from 2 minutes to 1 minute in a 10RM circuit weight training program?
- AIncreased lactic acid levels
- BIncreased pH levels
- CDecreased creatine kinase levels
8A football wide receiver performs 10 sprints of 40 yards to increase his 40 yard sprint speed. What is the primary energy system?
- AOxidative
- BPhosphagen
- CFast Glycolysis
9Which of the following enzymes catalyze the rate-limiting step of glycolysis?
- APhosphorylase
- BLactate dehydrogenase
- CPhosphofructokinase
10Which of the following can be metabolized anaerobically?
- AProtein
- BCarbohydrate
- CFat
11Which of the following substances is MOST important in the regulation of muscle action?
- ACalcium
- BPhosphorus
- CPotassium
12The wide grip bench press movement primarily takes place in which of the following anatomical planes?
- ASagittal
- BFrontal
- CTransverse
13Most human limbs operate as which class of lever?
- AThird Class
- BSecond Class
- CFirst Class
14Which is these is NOT one of the 8 biomechanical factors related to strength?
- AEnergy System Used
- BMuscle Cross Sectional Area
- CJoint Angular Velocity
15Which of the following best describes the differences between the downward and upward phases of a 1RM squat?
- AEnergy requirements are the same during the downward and upward phases
- BLess energy is required during the downward phase
- CMore muscle activity occurs during the downward phase
16Which type of exercise has the GREATEST positive influence on bone mineral density?
- AOpen kinetic chain
- BSingle-joint assistance
- CAxial Loading
17During free-weight exercise, muscle force varies with which of the following:
I. Perpendicular distance from the weight to the body joint
II. Joint angle
III. Movement velocity
IV. Movement velocity squared- AI and III only
- BI, II, and III only
- CII and III only
18A sophomore collegiate 1600-m runner has been aerobically training for 2 years. She increases her performance time throughout the course of her first season. Which of the following physiological responses is PRIMARILY responsible for her performance increases?
- AIncrease in running economy
- BIncrease in maximal hear rate
- CDecrease in lactate threshold
19Which of the following has the GREATEST influence on an athlete's dietary carbohydrate requirement?
- ABody size and body fat percentage
- BType, duration, and frequency of exercise
- CResting blood sugar levels
20Which of the following adaptations is an outcome of heavy resistance training (>85% 1RM) that can IMPROVE the performance of a baseball pitcher?
- AImproved lactate clearance
- BIncrease glycogen & triglyceride storage capacity
- CIncreased cross-sectional are of Type II muscle fibers
21Which of the following is a marker of aerobic overtraining?
- AIncreased serum testosterone concentration
- BDecreased muscle glycogen stores
- CIncreased testosterone-to-cortisol ratios
22Which of the following cardiovascular responses is disproportionately high during a resistance training exercise as compared to an aerobic exercise?
- ACardiac Output
- BHeart Rate
- CStroke Volume
23A 33-year-old, 5'1" woman has been working with a personal trainer for 6 months. Her initial and most recent body composition tests revealed these results:
January 1: Bodyweight=130lbs Body fat=30%
January 30: Bodyweight=124lbs Body fat=25%
Approximately how much body fat (in lbs) has this client lost since her first body composition evaluation?- A39lbs
- B8lbs
- C12lbs
24Which of the following is most important to replace after strenuous exercise in a warm climate?
- ASodium
- BWater
- CCarbohydrates
25An 18-year-old male baseball player has a RMR of 2,200 calories. He expends 700 calories per day through exercise and ingests the following:
Average daily protein intake: 125g
Average daily carb intake: 425g
Average daily fat intake: 40g
He would like to gain six pounds of muscle in 6 weeks. How many additional cals/day should he ingest daily to reach this goal?- A697 kcals/day
- B357 kcals/day
- C427 kcals/day
26A wrestler prepares for a competition and loses 11 lbs in 5 days. Most of the weight loss is
- AFat
- BWater
- CMuscle Tissue
27A 22-year-old female college swimmer has the following anthropometric data:
Height: 66in Weight: 70kg Body fat: 22%
What is her approximate lean body mass in lbs?- A120
- B34
- C154
28Which of the following BEST explains the requirement for increased protein intake by athletes?
- ADecreased protein oxidation during aerobic exercise
- BIncreased need for tissue repair
- CProtein quality
29An 18-year-old male baseball player has a RMR of 2,200 calories. He expends 700 calories per day through exercise and ingests the following:
Average daily protein intake: 125g
Average daily carb intake: 425g
Average daily fat intake: 40g
How many calories does he eat each day?- A2360
- B2560
- C2460
30Which of the following proteins has an amino acid profile MOST similar to the body's needs?
- ASoy
- BMilk
- CEgg
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- Criado em 1 jun 2015 · atualizado em 18 jan 2017
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