HES 410: exam 2 (lecture 12) Questions and
Answers with Verified Solutions | Latest
Updated 2026
vibration physiology -tonic vibration reflex (neural potentiation
b/c of
increased muscle spindle activity)
-increased metabolic response
-muscle temp is not really affected
types of vibration devices -whole body (side-alternating, vertical
power
plate)
-regional
-DBs (shake weight)
vibration load: frequency -0-50 Hz
-most studies: 30-40 Hz
vibration load: amplitude -0-12 mm
-most studies: 2-6 mm
vibration load: acceleration -angular frequency x peak amp
-0-18g
-most studies: 2-13g
vibration load: duration 30-60s per set
, posture on vibration plate -knee joint angle is critical
-more flexion: less vibration to head
-less flexion: more vibration to head
-target upper body with hands on plate
acute performance on vibration VJ, jump power (BIGGEST INCREASE),
plate increases squat power,
bench press power, elbow flexion power,
muscle
activity and temp
chronic performance on vibration VJ height (20%), leg press power, jump
plate increases power,
elbow flexor MVC, 1RM bench pull
meta-analysis: strength and -strength and power increase the most
vibration when
plate dynamic and ISOM ex are used
-greater strength with squat and lunges
than squats
alone
-better chronic effects than acute
meta-analysis: power and vibration -larger effect size in older than younger
plate
contraindications and vibration -acute inflammations/infections
plate -migraine
-acute RA
-low extremity ulcers
-heart valve and rhythm disorders
-severe diabetes
-pregnancy
Answers with Verified Solutions | Latest
Updated 2026
vibration physiology -tonic vibration reflex (neural potentiation
b/c of
increased muscle spindle activity)
-increased metabolic response
-muscle temp is not really affected
types of vibration devices -whole body (side-alternating, vertical
power
plate)
-regional
-DBs (shake weight)
vibration load: frequency -0-50 Hz
-most studies: 30-40 Hz
vibration load: amplitude -0-12 mm
-most studies: 2-6 mm
vibration load: acceleration -angular frequency x peak amp
-0-18g
-most studies: 2-13g
vibration load: duration 30-60s per set
, posture on vibration plate -knee joint angle is critical
-more flexion: less vibration to head
-less flexion: more vibration to head
-target upper body with hands on plate
acute performance on vibration VJ, jump power (BIGGEST INCREASE),
plate increases squat power,
bench press power, elbow flexion power,
muscle
activity and temp
chronic performance on vibration VJ height (20%), leg press power, jump
plate increases power,
elbow flexor MVC, 1RM bench pull
meta-analysis: strength and -strength and power increase the most
vibration when
plate dynamic and ISOM ex are used
-greater strength with squat and lunges
than squats
alone
-better chronic effects than acute
meta-analysis: power and vibration -larger effect size in older than younger
plate
contraindications and vibration -acute inflammations/infections
plate -migraine
-acute RA
-low extremity ulcers
-heart valve and rhythm disorders
-severe diabetes
-pregnancy
