NSCA CSCS Study guides, Class notes & Summaries

The Krebs cycle occurs in which portion of the cell? a. mitochondria b. nucleus c. membrane d. cytoplasm - Answer *a. mitochondria The law of mass action states which of the following? a. A stronger action potential cannot produce a stronger contraction. b. The concentrations of reactants or products will drive the direction of the reactions. c. The weight or mass of an object creates a stronger action potential. d. The rate of product formation is greatly influenced by the ...

How much carbs should an aerobic athlete consume within 30 minutes of exercise? - Answer 1.5 g/kg of BW For aerobic exercise, which training intensity and duration will have the greatest EPOC? - Answer 50-60% VO2 max, >40 minutes At 95% of 1 RM, how many reps are you allowed to perform? 87%? 80%? 75%? 67%? - Answer 2, 5, 8, 10, 12 What is the appropriate frequency of plyometric exercise for in-season football? - Answer 1 day/week What is the appropriate frequency of plyome...

1. What is the term used for stress that is applied to the body until performance begins to decline before a period of rest? A) Functional overreaching B) Non-functional overreaching C) Overtraining D) Detraining - Answer 1. A 2. Implementation of specific tasks during athletic movements or specific exercises is known as which of the following? A) Discovery B) Explicit instruction C) Specific instruction D) Guided discovery - Answer 2. B 3. Which of the following muscle actions...

A college basketball coach would like to know which one of her players has the most muscular power. Which of the following is the MOST valid test for measuring muscular power? a. vertical jump b. 1RM bench press c. 5RM squat d. 100 m (109-yard) sprint - Answer a When measuring maximal strength of a soccer player , which of the following could potentially adversely affect the test-retest reliability of the results? I. using multiple testers II. retesting at a different time of da...

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...

acceleration - Answer the change in velocity per unit time agonist - Answer also called the prime mover. The muscle most directly involved in bringing about a movement anatomical position - Answer the body is erect, the arms are down at the sides, and the palms face forward angle of pennation - Answer angle between the muscle fibers and an imaginary line between the muscle's origin and insertion; 0° corresponds to no pennation angular displacement - Answer the angle throu...

Why do sedentary ,healthy adults require dietary proteins/amino acids to maintain good health? a. to maintain cellular structure and function b. to prevent diseases such as cancer c. to strengthen bones - Answer ANSWER: a. to maintain cellular structure and function EXPLANATION: Protein is the primary structural and functional component of every cell in the human body. Dietary proteins are used for growth and development and to build and repair cells; they serve as enzymes, trans...

Which of the following substances regulates muscle actions? potassium calcium troponin tropomyosin - Answer calcium Which of the following substances acts at the NMJ to excite the muscle fibers of a motor unit? acetylcholine ATP creatine phosphate serotonin - Answer acetylcholine When throwing a baseball, an athlete's arm is rapidly stretched just before throwing the ball. Which of the following structures detects and responds to that stretch by reflexively increasing musc...

All of the following are considered one of the five food groups EXCEPT? a) Milk b) Beans c) Oils d) Fruit - Answer c) Oils [They should be included in all diets as they provide essential fatty acids and Vitamin E] Expressed as percent of daily caloric intake, a common protein intake recommendation would be a) 10% - 15% b) 45% - 65% c) 20% - 35% d) 3% - 5% - Answer a) 10% - 15% [This is a "common" recommendation, not necessarily enough for athletes during training] Which...

During the concentric phase of the low bar back squat, which of the following muscles acts as an antagonist to the gluteus maximus? a. quadriceps b. hamstrings c. psoas major - Answer c Which of the following muscle groups and types of muscle actions are associated with the downward phase of the dumbbell biceps curl? a. Primary group- elbow extensors, Primary action- eccentric b. Primary group- elbow flexors, Primary action- eccentric c. elbow flexors- concentric - Answer b Which...