ESSENTIALS OF STRENGTH TRAINING AND CONDITIONING STUDY QUESTIONS
1.What substance regulates muscle actions? ANS Calcium
2.What substance acts at the neuromuscular junction to excite the muscle fibers of a
motor unit? ANS Acetylcholine
3.When throwing a baseball, an athlete's arm is rapidly stretched just before throwing
the ball. What structure detects and responds to that stretch by reflexively increasing
muscle activity? ANS Muscle Spindle
4.Where is the heart's electrical impulse normally initiated from? ANS Sinoatrial (SA)
Node
5.What happens during the QRS complex of a typical ECG? ANS I. Repolarizing of the
Atria
II. Depolarizing of the Ventricles
6. What is the definition of power? ANS (force) x (velocity)
7. To compare performacnes of Olympic weightligters of different bodyweights, the
classic formula divides the load lifted by the athlete's _______________. ANS Body
weight to the 2/3 power
, ESSENTIALS OF STRENGTH TRAINING AND CONDITIONING STUDY QUESTIONS
8. During a free weight exercise, muscle force varies with ANS -perpendicular distance
from the weight to the body joint
-joint angle
9. A vertical jump involves knee, hip and shoulder movement in which anatomical
planes? ANS Sagittal Plane
10. An athlete is performing a concentric isokinetic elbow flexion and extension
exercise. Which types of levers occurs at the elbow? ANS -First Class
-Third Class
11. What energy substrate can be metabolized anaerobically? ANS Glucose
12. What reaction is the primary cause of metabolic acidosis (the decrease in
intramuscular pH during high-intensity fatiguing exercise)? ANS ATP -> ADP+P(i)+H(+)
13. What energy system produces ATP at the quickest rate? ANS Phosphagen
14. Approximately how many net ATP are produced via the oxidative energy system
from the metabolism of one glucose molecule? ANS 38
1.What substance regulates muscle actions? ANS Calcium
2.What substance acts at the neuromuscular junction to excite the muscle fibers of a
motor unit? ANS Acetylcholine
3.When throwing a baseball, an athlete's arm is rapidly stretched just before throwing
the ball. What structure detects and responds to that stretch by reflexively increasing
muscle activity? ANS Muscle Spindle
4.Where is the heart's electrical impulse normally initiated from? ANS Sinoatrial (SA)
Node
5.What happens during the QRS complex of a typical ECG? ANS I. Repolarizing of the
Atria
II. Depolarizing of the Ventricles
6. What is the definition of power? ANS (force) x (velocity)
7. To compare performacnes of Olympic weightligters of different bodyweights, the
classic formula divides the load lifted by the athlete's _______________. ANS Body
weight to the 2/3 power
, ESSENTIALS OF STRENGTH TRAINING AND CONDITIONING STUDY QUESTIONS
8. During a free weight exercise, muscle force varies with ANS -perpendicular distance
from the weight to the body joint
-joint angle
9. A vertical jump involves knee, hip and shoulder movement in which anatomical
planes? ANS Sagittal Plane
10. An athlete is performing a concentric isokinetic elbow flexion and extension
exercise. Which types of levers occurs at the elbow? ANS -First Class
-Third Class
11. What energy substrate can be metabolized anaerobically? ANS Glucose
12. What reaction is the primary cause of metabolic acidosis (the decrease in
intramuscular pH during high-intensity fatiguing exercise)? ANS ATP -> ADP+P(i)+H(+)
13. What energy system produces ATP at the quickest rate? ANS Phosphagen
14. Approximately how many net ATP are produced via the oxidative energy system
from the metabolism of one glucose molecule? ANS 38
