Before his workout, John performs a few sets of the inchworm. What type of stretch is this?
A. Static stretch
B. Ballistic stretch
C. Dynamic stretch
Explanation:
Dynamic stretches are functionally based exercises that use sport specific movements to prepare the body for activity. One can think of dynamic stretching as actively moving a joint through the range of motion required for a sport or tactical activity.
The inchworm is performed in a multi step process:
1. Stand erect with feet placed shoulder width apart.
2. While slightly bending the knees, bend forward at the waist and place hands shoulder width apart flat on the floor.
3. Move the hands alternately forward, walking them out until the body is in the push up position.
4. Walk the feet up to the hands using small steps while keeping the knees just slightly flexed.
5. Repeat the motion over a prescribed distance or number of repetitions.
Generally, when the exercise intensity of an aerobic training session increases, what happens to the duration of exercise sessions?
A. Increases
B. Stays the same
C. Decreases
Explanation:
Intensity and duration of aerobic exercise have an inverse relationship. Generally, the higher the exercise intensity, the shorter the exercise duration needs to be. Adaptations in the body are specific to intensity, or effort expended during a training session.
Lower intensity aerobic exercise sessions can be performed for much longer durations than high intensity aerobic exercise sessions.
Question: 3
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During a biceps curl, when would the biceps be performing a concentric muscle action?
A. When the dumbbell is at the very bottom of the movement
B. When the dumbbell is on its way up
C. When the dumbbell is on its way down
Explanation:
A concentric muscle action is when the muscle shortens because the contractile force is greater than the resistive force.
In the case of a biceps curl, the biceps muscle shortens as the dumbbell is on its way upward, thereby creating a concentric muscle action.
Activities such as resistance training that are high intensity, and thus have a high power output, require a rapid rate of supplied energy and rely almost entirely on which energy system?
A. Phosphagen system
B. Oxidative system
C. Glycolytic system
Explanation:
The phosphagen, glycolytic, and oxidative energy systems differ in their ability to supply energy for activities of various intensities and durations. Exercise intensity is defined as a level of muscular activity that can be quantified in terms of power.
Activities such as resistance training that are high intensity and thus have a high power output require a rapid rate of supplied energy and rely almost entirely on the energy supplied by the phosphagen system. Activities low in intensity, such as marathon running, rely on the oxidative system.
When a baseball pitcher is extending the elbow and getting ready to release the ball, which muscle is acting as the agonist and which the antagonist?
A. Agonist: biceps; Antagonist: triceps
B. Agonist: triceps; Antagonist: biceps
C. Agonist: triceps; Antagonist: latissimus dorsi
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Explanation:
The muscle most directly involved in creating the movement is the agonist; in the case of a baseball pitcher throwing a ball, the elbow will fully extend to accelerate the ball. The triceps are responsible for that motion and, therefore, are categorized as the agonist.
As the elbow is approaching full extension, the biceps act to slow down elbow extension and bring it to a stop to protect the elbow structures. This categorizes the biceps as the antagonist. Question: 6
A. Rhomboids, anterior deltoids B. Latissimus dorsi, rhomboids C. Middle trapezius, gluteals
Explanation:
The bent over row involves the lifter bending over, keeping a flat back, and rowing a barbell or dumbbells to the torso and back down for a desired number of reps.
There are several major muscles involved in performing a bent over row:
• Latissimus dorsi
• Teres major
• Middle trapezius
• Rhomboids
• Posterior deltoids Question: 7 How many facility rule offenses does it take for an athlete to be dismissed from the facility for the remainder of the year? A. Five B. Four C. Three Answer: B
Explanation:
There are five steps that strength and conditioning professionals should take in response to rule breaking:
• 1st offense: Verbal warning
• 2nd offense: Dismissal from facility for one day
• 3rd offense: Dismissal from facility for one week
• 4th offense: Dismissal from facility for remainder of the year
• 5th offense: Permanent dismissal from facility Visit us athttps://www.certschief.com/nsca-tsac-f/
Answer: A
Explanation: When designing a weight room, there are many guidelines for safety, including for the placement of mirrors in the facility. The minimum requirement for the space from the bottom of a mirror to the floor is 20 inches; this will prevent the mirror from breaking if equipment rolls against the wall.
Explanation: Vitamin D aids in the absorption of calcium and helps to build bone mass and prevent bone loss. Vitamin A promotes growth and repair of body tissue and healthy skin and hair. Vitamin K helps to maintain normal blood clotting and bone health.
There are three numerical measurement categories in descriptive athletics. Central tendency measures how the data clusters. Variability measures how the data disperses. Percentile rank measures the percentage of scores below an individual's specific score.
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