What type of action involves a muscle contracting without causing any movement in the associated limbs?

Which of the following ions regulates a muscle contraction?

The structure in the cell that is responsible for using oxygen to produce energy is the

Which of the following characteristics describes a motor unit?

Which of the following events recruits fast-twitch muscle fibers the MOST?

Dynamically prestretching a muscle is associated with which type of subsequent muscle action?

Which of the following characteristics describes slow-twitch muscle fibers?

During the biceps curl exercise, the triceps brachii acts as

A mechanical advantage that requires less muscular force than resistive force has a value of

The anatomical plane that divides the body into right and left halves is called the

Which of the following exercises involves a first-class lever?

Which of the following movements of the extremities occur in the frontal plane during the lat pulldown exercise?

Which of the following bones is part of the axial skeleton?

Two days ago, after Jack completed his cycling workout at an average speed of 18 mph (29 km/hr), his breathing rate was elevated. Today, under the same conditions, after Jack completed his cycling workout at an average speed of 10 mph (16 km/hr), his breathing rate was elevated once again. What state or condition explains this phenomenon?

The molecule primarily responsible for providing direct energy for the work of the cells is

Which of the following energy systems produces the LOWEST capacity of ATP?

If energy must be generated at a high rate, such as during sprinting, pyruvate will be converted into which substrate?

Gas exchange in the lungs occurs at which of the following sites?

The blood in the chambers of which side of the heart holds the greatest amount of oxygen?

Which of the following is a component of the Fick equation?

Which of the following decreases as a result of acute aerobic exercise?

An athlete you are training says that lately she is really tired, has trouble sleeping, and feels her heart racing even while resting. When you ask, she says that for the past several months she added four more weekly workouts to the workout schedule you gave her. What is the likely cause of her symptoms?

Chloe is sprinting at top speed while training for the 100 meter (109 yd) dash. Which fiber type is she predominantly using for this activity?

As a result of adaptations to aerobic exercise, a-vO2 difference will

Which of the following BEST describes the transition in muscle fiber type caused by aerobic endurance training?

After 8 weeks of following a resistance training program, a 10-year-old boy can lift significantly heavier loads than he could lift previously in the chest press and leg press exercises. Which of the following explains his increased muscular strength?

Which of the following are the recommended volume guidelines for a youth resistance training program?

Relative to body weight, the lower-body strength of women compared to men is

All of the following are outcomes for a 70-year-old male who follows a resistance training program for 10 weeks EXCEPT

If one of the players on a basketball team makes two free throws at the end of practice, the team does not have to run sprints. This feedback is an example of

Which of the following is an appropriate guideline for protein intake for a marathon runner?

Which of the following is an example of a high-quality protein food?

An elite 10 km (6.2 mi) cross-country runner who weighs 154 pounds (70 kg) should consume approximately how many grams of carbohydrate per day?

Which of the following substances is the MOST important for athletic performance?

Isaiah consumes 3,000 kilocalories per day. His daily caloric intake consists of 450 grams of carbohydrate, 100 grams of fat, and 75 grams of protein. What percentage of Isaiah's diet is composed of fat?

Tom wants to lose 6 pounds (2.7 kg) in 7 weeks. To achieve his goal, Tom should have a weekly deficit of approximately how many calories?

Which of the following strategies for carbohydrate loading will result in the highest glycogen stores?

A basketball player who lost 3 pounds (1.4 kg) during a workout should consume approximately how much fluid to replace the fluid lost as sweat?

Athletes participating in which of the following sports experience the most optimal advantage of timing their carbohydrate consumption to 1 hour before a competition?

Which of the following practices or perceptions is most commonly performed or held by a person who has bulimia?

Growth hormone has which of the following effects on the body?

Which of the following substances stimulates the production of new red blood cells?

Which of the following performance-enhancing substances are banned by the National Collegiate Athletic Association (NCAA)?

Which of the following describes the bar path for the snatch exercise?

In the lowest body position during the forward movement phase of the lunge exercise, the lead knee should be

Which of the following describes the incline dumbbell bench press exercise?

Which of the following describes the lateral shoulder raise exercise?

Which of the following muscles is primarily responsible for causing plantar flexion during the standing calf (heel) raise exercise?

Which of the following is a shoulder exercise that specifically trains the deltoids but does not recruit the triceps?

Which of the following variations of the technique used for the standard push-up exercise will increase the stress placed on the triceps the MOST?

All of the following muscles are involved in performing the bent-knee sit-up exercise EXCEPT

Which of the following muscles is eccentrically involved during the backward movement phase of the seated chest press exercise?

When an athlete performs the pull-up exercise, when should he exhale?

What type of plyometric drill is the double-leg vertical jump?

It is difficult for an athlete to correctly perform a depth jump because the amortization phase is too long. Which of the following adjustments is most appropriate for addressing this problem?

Which of the following occurs during the countermovement for the double-leg tuck jump exercise?

Which of the following is the BEST recommendation for an athlete working on the start and acceleration phases of sprinting?

During the maximum-velocity phase of sprinting, an athlete is bending forward, with her head in front of her shoulders, and with a forward curvature of her upper back. Which of the following recommendations should optimize her performance during this phase of the sprint?

Sprinting uphill is an example of which type of training?

Which of the following athletes benefits the MOST from agility training?

As an athlete changes body position to change directions, which of the following movements should be avoided?

Which of the following is the BEST recommendation to give an athlete who is using the T-test as a drill to improve agility?

Which of the following instructions is recommended when using a stair climber or stepper?

Which of the following is occurring when a runner's foot hits too far in front of the body's center of gravity, leading to greater shock and a slight braking effect?

For which of the following exercises is a spotter recommended?

What is the first stage of performing a needs analysis?

After testing John's fitness level, the strength and conditioning professional decides that John needs to focus on improving the muscular strength of his lower body. Which of the following is the BEST type of exercise to incorporate into John's program?

Which of the following combinations of RM loads and rest period lengths will increase muscular endurance the MOST?

What type of training method should be added to a distance runner's aerobic endurance training program to increase the athlete's lactate threshold?

Which of the following tests is the BEST indicator of a softball player's ability to run the bases?

Which of the following tests estimates an athlete's body composition?

A strength and conditioning professional is preparing to test athletes on a high school American football team. The decisions about what tests to perform are based on

Which of the following actions should increase the reliability of measuring elapsed time with a stopwatch?

A strength and conditioning professional needs to do a preseason assessment on a basketball team using the following tests. 1. push-up test 2. 1RM power clean 3. pro agility test 4. sit-and-reach test

Performing which of the following movements during a flexibility test invalidates the test?

Alfonso is a 160 pound (72.7 kg) collegiate baseball player, and his 1RM in the power clean is 240 pounds (109 kg). How does his score rank?

Eight weeks ago David completed the 40-yard (37 m) sprint test in 4.6 seconds. Today he completed the test in 4.5 seconds. Which of the following actions is MOST appropriate for David's sprint training program?

Female basketball players typically have what percentage of body fat?

Which of the following is an exercise that is the BEST for training the primary muscles of the swing limb of a soccer kick?

Which of the following types of exercises is recommended for a beginning resistance training program that improves balance, coordination, and strength of isolated muscles?

Which of the following exercises is a plyometric jump-in-place drill?

An athlete performed the following exercises in the order indicated. 1. incline bench press 2. wide-grip bent-over row 3. standing shoulder press 4. machine seated row 5. lying triceps extension 6. hammer curl

Alternating upper- and lower-body exercises or alternating pushing and pulling exercises should achieve which of the following goals?

A 32-year-old distance runner has a resting heart rate of 48 bpm. Assuming an exercise intensity of 80%, and based on the Karvonen method, what is her target heart rate?

If an athlete's goal is to increase strength, which of the following is a recommended load to lift in the back squat exercise if his 1RM is 275 pounds (125 kg)?

Typically, what percentage of the 1RM allows an athlete to perform 15 repetitions in the shoulder press exercise?

Which of the following combinations of load and repetitions will cause the GREATEST increase in muscular hypertrophy?

Which of the following work-to-rest ratios is associated with training the phosphagen energy system?

An athlete is following a resistance training program that includes lifting loads of 90% 1RM for 4 repetitions for her core exercises. Which of the following is the BEST recommendation for the length of her rest periods between sets?

All of the following actions should contribute to exercise intensity progression for a plyometric training program EXCEPT

As an athlete progresses from a muscular endurance training program to a hypertrophy training program, which of the following characteristics of her training program DECREASES?

Athletes should devote the majority of their training time to practicing sport-specific techniques during which of the following periodization training periods?

In which of the following periodization phases does higher-volume, lower-intensity training change to lower-volume, higher-intensity training?

Which of the following exercises is a closed kinetic-chain exercise?

In a strength and conditioning facility, what should the minimum space be between the floor and the bottom edge of a mirror attached to the wall?

How much space should an athlete have to safely perform the back squat exercise with an Olympic-style bar in a squat rack, based on a 10-foot (3 m) user space width?

How frequently should the cables and belts of the resistance training machines in a strength and conditioning facility be inspected?

Before an athlete can use the equipment in a strength and conditioning facility, what should the athlete obtain?

All of the following items are included or described in an emergency plan for a strength and conditioning facility EXCEPT

When scheduling the strength and conditioning facility, which of the following teams normally has priority?