Skip to content
ExamPassoLog in

NASM Certified Personal Trainer · Exercise Technique and Training Instruction

Written by AI · Not yet reviewed by staff

NASM Certified Personal Trainer Flexibility, Core, and Balance Technique Summary

Importance
★★★★☆ (4 / 5)
Weight
About 8 of 24 Exercise Technique and Training Instruction questions (35%)

How to teach foam rolling, stretching, core, and balance exercises, and how to make them easier or harder.

Flexibility, Core, and Balance Technique: must-know points

  • Self-myofascial release (foam rolling) applies pressure to tight or tender tissue.
  • Static stretching holds a position; dynamic stretching uses controlled movement.
  • A stabilization exercise keeps the spine still, like a plank.
  • Balance gets harder with a smaller base of support or a less stable surface.

Flexibility, Core, and Balance Technique: 10 sample questions

Practice questionReviewedExercise Technique and Training Instruction › Flexibility, Core, and Balance Technique★★★★☆

Question 1. A trainer has a client hold steady pressure on a tender spot with a foam roller. What is this technique called?

  1. ① Dynamic stretching
  2. ② Self-myofascial release
  3. ③ Ballistic stretching
  4. ④ Reactive training
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ② Self-myofascial release

Key point: Foam rolling = self-myofascial release (SMR)

Foam rolling is called self-myofascial release (SMR). The client applies pressure to tight or tender soft tissue.

Wrong choices

  • Dynamic stretching: Dynamic stretching is movement, not held pressure.
  • Ballistic stretching: Ballistic stretching uses fast bouncing.
  • Reactive training: Reactive training is fast, powerful movement such as jumps.
Practice questionReviewedExercise Technique and Training Instruction › Flexibility, Core, and Balance Technique★★★★☆

Question 2. Which stretching method uses controlled, repeated movement through the full range of motion, such as walking lunges with a reach?

  1. ① Static stretching
  2. ② Dynamic stretching
  3. ③ Ballistic stretching
  4. ④ Self-myofascial release
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ② Dynamic stretching

Key point: Dynamic stretching = controlled movement through range

Dynamic stretching moves the joints through their range of motion in a controlled way. It is often used to warm up.

Wrong choices

  • Static stretching: Static stretching holds one position without moving.
  • Ballistic stretching: Ballistic stretching uses bouncing momentum, not controlled movement.
  • Self-myofascial release: This uses pressure from a roller or ball, not movement through a range.
Practice questionReviewedExercise Technique and Training Instruction › Flexibility, Core, and Balance Technique★★★★☆

Question 3. Which deep abdominal muscle is mainly trained by the drawing-in maneuver?

  1. ① Transversus abdominis
  2. ② Rectus abdominis
  3. ③ External obliques
  4. ④ Latissimus dorsi
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ① Transversus abdominis

Key point: Drawing-in trains the transversus abdominis

The drawing-in maneuver pulls the belly button gently toward the spine. It mainly activates the transversus abdominis, a deep muscle that helps stabilize the spine.

Wrong choices

  • Rectus abdominis: The rectus abdominis is the outer 'six-pack' muscle.
  • External obliques: The external obliques mainly rotate and bend the trunk.
  • Latissimus dorsi: The latissimus dorsi is a large back muscle, not a deep core muscle.
Practice questionReviewedExercise Technique and Training Instruction › Flexibility, Core, and Balance Technique★★★★☆

Question 4. Which change makes a standing balance exercise easier?

  1. ① Closing the eyes
  2. ② Widening the base of support
  3. ③ Lifting one foot off the floor
  4. ④ Standing on a foam pad
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ② Widening the base of support

Key point: Wider base of support = easier balance

A wider base of support is more stable, so the exercise gets easier. A smaller base, a soft surface, or closed eyes make it harder.

Wrong choices

  • Closing the eyes: Closing the eyes makes it harder.
  • Lifting one foot off the floor: A single-leg stance is harder.
  • Standing on a foam pad: An unstable surface is harder.
Practice questionReviewedExercise Technique and Training Instruction › Flexibility, Core, and Balance Technique★★★★☆

Question 5. Which stretch is held still at the point of mild tension to lengthen a tight, overactive muscle?

  1. ① Dynamic stretching
  2. ② Ballistic stretching
  3. ③ Plyometric training
  4. ④ Static stretching
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ④ Static stretching

Key point: Static stretch = hold at mild tension

Static stretching holds a muscle in a lengthened position without movement. It is used to lengthen overactive muscles.

Wrong choices

  • Dynamic stretching: Dynamic stretching keeps moving instead of holding.
  • Ballistic stretching: Ballistic stretching bounces and is not held still.
  • Plyometric training: Plyometrics are quick jumping exercises, not stretches.
Practice questionReviewedExercise Technique and Training Instruction › Flexibility, Core, and Balance Technique★★★★☆

Question 6. Which exercise is best classified as a core stabilization exercise, where the spine stays still?

  1. ① Cable trunk rotation
  2. ② Back extension on a bench
  3. ③ Front plank
  4. ④ Medicine ball rotation throw
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ③ Front plank

Key point: Plank = core stabilization (spine does not move)

In a stabilization exercise the client holds a position and resists movement. A front plank is a good example.

Wrong choices

  • Cable trunk rotation: Rotation moves the spine, so it is a core strength exercise.
  • Back extension on a bench: The spine moves through a range of motion.
  • Medicine ball rotation throw: This is a fast, powerful rotation, so it is core power.
Practice questionReviewedExercise Technique and Training Instruction › Flexibility, Core, and Balance Technique★★★★☆

Question 7. During a floor bridge, which muscle should be the main mover that lifts the hips?

  1. ① Rectus femoris
  2. ② Gluteus maximus
  3. ③ Erector spinae
  4. ④ Gastrocnemius
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ② Gluteus maximus

Key point: Bridge: glute max is the prime mover for hip extension

The gluteus maximus is the main hip extensor, so it lifts the hips in a bridge. The client should feel the glutes, not the low back.

Wrong choices

  • Rectus femoris: The rectus femoris is a hip flexor and would work against the hip lift.
  • Erector spinae: The erector spinae should stay quiet and keep the spine steady.
  • Gastrocnemius: The gastrocnemius is a calf muscle and is not the hip mover.
Practice questionReviewedExercise Technique and Training Instruction › Flexibility, Core, and Balance Technique★★★★☆

Question 8. About how long is a static stretch commonly held to lengthen a tight muscle?

  1. ① About 2 seconds
  2. ② About 5 seconds
  3. ③ About 5 minutes
  4. ④ About 30 seconds
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ④ About 30 seconds

Key point: Hold a static stretch about 30 seconds

A static stretch is commonly held for about 30 seconds so a tight muscle can relax and lengthen.

Wrong choices

  • About 2 seconds: 2 seconds is too short for the muscle to relax.
  • About 5 seconds: 5 seconds is too short for the muscle to relax.
  • About 5 minutes: 5 minutes is far longer than needed.
Practice questionReviewedExercise Technique and Training Instruction › Flexibility, Core, and Balance Technique★★★★☆

Question 9. Which change makes a forearm plank harder?

  1. ① Lift one foot off the floor
  2. ② Rest on the knees instead of the toes
  3. ③ Place the forearms on a high bench
  4. ④ Hold the plank for a shorter time
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ① Lift one foot off the floor

Key point: Fewer points of support = harder core exercise

Lifting one foot reduces the base of support, so the core works harder to keep the spine still.

Wrong choices

  • Rest on the knees instead of the toes: Resting on the knees shortens the lever, which makes the plank easier.
  • Place the forearms on a high bench: Raising the forearms on a bench lowers the load on the core, which makes it easier.
  • Hold the plank for a shorter time: A shorter hold is less demanding, not more.
Practice questionReviewedExercise Technique and Training Instruction › Flexibility, Core, and Balance Technique★★★★☆

Question 10. Standing on a foam pad instead of the floor makes a balance exercise harder mainly because of what change?

  1. ① The base of support is wider
  2. ② The client weighs more
  3. ③ The surface is less stable
  4. ④ The muscles no longer need to work
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ③ The surface is less stable

Key point: Less stable surface = harder balance

A foam pad moves under the foot, so the surface is less stable and the body must work harder to stay balanced.

Wrong choices

  • The base of support is wider: A foam pad does not widen the base of support.
  • The client weighs more: Body weight does not change when standing on a pad.
  • The muscles no longer need to work: The muscles work harder, not less, on an unstable surface.

Test yourself.

Flexibility, Core, and Balance Technique: 5 questions →Exercise Technique and Training Instruction: 5 questions →