CSCS Practice Exam set of 300 answered questions similar to Actual Exam Created for 2022/2023

Each muscle fiber is surrounded by a connective tissue called? - ANSWER Endomysium What is released from the sarcoplasmic reticulum into the myofibril, causing tension development in a muscle? - ANSWER Calcium ions that bind to troponin What type of muscular contraction occurs in the pectoralis major during the slow, controlled, downward phase of a bench press? - ANSWER Eccentric What is the thick structural protein inside the sarcomere? - ANSWER Myosin A muscle fiber that is small in diameter has a slow contraction speed, and a high capillary density would be classified as? - ANSWER Type I Through which of the following valves does blood flow after contraction of the right atrium? - ANSWER Tricupsid During a typical electrocardiogram, atrial depolarization is represented by? - ANSWER P-wave While reading an ECG, electrical potential that depolarizes the ventricles is represented by? - ANSWER QRS complex What blood vessel functions to exchange oxygen, fluid, nutrients, electrolytes, hormones, and other substances between the blood and the interstitial fluid in the various tissues of the body? - ANSWER Capillaries Where are normal rhythmic electrical impulses initiated in the heart? - ANSWER Sinoatrial (SA) node When performing a biceps curl, tension in the biceps brachii muscle increases. Which of the following structures detects and responds to the tension by reflexively reducing muscle activation? - ANSWER Golgi tendon organ An athlete training for a marathon would benefit from having a high concentration of which muscle fiber type? - ANSWER Type I A college football player decides to add 30 minutes of intense stationary cycling every other day to his current resistance training program. Which of the following best describes the effect the stationary cycling will have on his performance? - ANSWER Strength gains compromised Which of the following represents the correct transmission of the heart's electrical impulse? - ANSWER SA node, AV node, AV bundle, Purkinje fibers Which of the following represents a muscle of expiration? - ANSWER Internal Intercostal Identify the correct path in which inhaled air is distributed to the lungs. - ANSWER Trachea, Bronchi, Bronchioles, Alveoli Heavy resistance exercise has what effect on cardiac output? - ANSWER No change What is the value of a metabolic equivalent (MET) - ANSWER 3.5 ml of oxygen per kilogram of body weight per minute The phosphagen energy system would primarily supply ATP for which of the following activities? - ANSWER 100-m dash Which of the following pathways/systems has the highest capacity for energy production? - ANSWER Oxidation of fats and proteins A male athlete fatigues during the running of a marathon and must pull out of the race, which is the most probable factor that limited his performance in the race. - ANSWER Depleted muscle glycogen Which of the following is the primary energy system at work when the body is at rest? - ANSWER Oxidative ATP used during the 400-m dash would be primarily supplied from what energy system? - ANSWER Fast glycolysis Which of the following has the greatest influence on the energy system used for a given exercise? - ANSWER Intensity Which energy system results in the formation of the organic end product lactic acid? - ANSWER Fast glycolysis A female weightlifter is only able to complete 8 repetitions of a 10 RM set of power cleans. Which of the following factors is the least likely to have contributed to her missed repetitions? - ANSWER Fat Stores You decide to use interval training to stress the phosphagen energy system, which of the following would be an appropriate work to rest period ratio? - ANSWER 1:15 Aerobic training added to the training of anaerobic athletes (Combination Training) can lead to all of the following EXCEPT? - ANSWER Increased speed All of the following are physiological roles of growth hormone EXCEPT - ANSWER Increase glycogen synthesis Which of the following exercises would promote the highest increase in serum testosterone concentrations? - ANSWER 3 sets of deadlifts at 90% of one-repetition maximum Growth hormone stimulates what organ to secrete Insulin-Like Growth Factors? - ANSWER Liver Which of the following variables would promote the greatest increased serum testosterone levels? - ANSWER Short rest intervals (30 sec to 1 min) Growth hormone is secreted by which of the following? - ANSWER Anterior Pituitary Which of the following locations produce testosterone in women? - ANSWER Ovaries and Adrenal Gland All of the following are important signal mechanisms for IGF release EXCEPT? - ANSWER Testosterone Catecholamines act as all of the following EXCEPT? - ANSWER Vasoconstrictors For women still having a menstrual cycle, which of the following hormones is higher than men at rest? - ANSWER Growth Hormone The skull, vertebral column, ribs, and sternum are referred to as the? - ANSWER Axial Skeleton The sutures of the skull are an example of what type of joint? - ANSWER Fibrous When passing a basketball which muscles act as the agonist and antagonist? - ANSWER Agonist: Triceps, Antagonist: Biceps A lever in which the muscle force and resistive force act on opposite sides of the fulcrum is referred to as? - ANSWER First class A volleyball player is performing standing plantar flexion against resistance. Which of the following types of levers occurs at the ball of the foot during this exercise? - ANSWER Second class Punting a football requires flexion of the hip that occurs in which plane of action? - ANSWER Sagittal Which of the following shoulder movements and planes of action are associated with a tennis backhand? - ANSWER Abduction/transverse During freestyle swimming, which of the following muscles acts as a synergist to the deltoid with regards to upper arm movement? - ANSWER Infraspinatus Which of the following represents the equation for Power? - ANSWER Work / Time How much work is required to lift a 100 kg barbell 2 m for 5 repetitions? - ANSWER 9,800 J If it takes 30 seconds to lift a 100 kg barbell 2 m for 6 repetitions, what is the power output? - ANSWER 392 W Which type of muscle arrangement is NOT matched with the correct muscle example? - ANSWER Biceps Brachii: Longitudinal All of the following are advantages of weight stack machines EXCEPT? - ANSWER Simulation of real life activities An athlete is utilizing a cycle ergometer and in order to increase the intensity she turns the knob which controls the brake pad, this type of resistance is referred to as? - ANSWER Friction The normal lumbar spine has what kind of curvature? - ANSWER Lordotic Of the following back postures during lifting, which has been found to be the best at avoiding injury? - ANSWER Slightly Arched Which of the following occurs as result of heavy resistance training? - ANSWER Decreased Mitochondrial Density Which of the following would result in increased motor cortex activity? - ANSWER When an athlete learns a new sprinting technique A 13 year old boy is just beginning a resistance training program, at this stage which type of adaptations will predominate? - ANSWER Neural With regards to muscular hypertrophy, which fiber type shows the greatest increases in size? - ANSWER Type II