Table 2. Scoring criteria for each item of the Modified Tuck Jump Assessment.
Phase of jump Criterion View None (0) Small (1) Large (2)
Knee and Thigh motion 1. Lower Extremity valgus at landing Frontal (F) No valgus Slight Valgus Obvious valgus: Both knees touch
2. Thighs do not reach parallel (peak of jump) Lateral (L) The knees are higher or at the same level as the hips The middle of the knees are at a lower level than the middle of the hips The whole knees are under the entire hips
3. Thighs not equal side-to-side during flight F Thighs equal side-to-side Thighs slightly unequal side-to-side Thighs completely unequal side-to-side (one knee is over the other)
Foot Position
During Landing
4. Foot placement not shoulder width apart F Foot placement exactly shoulder width apart Foot placement mostly shoulder width apart Both feet fully together and touch at landing
5. Foot placement not parallel (front to back) L Foot (the end of the feet) placement parallel Foot placement mostly parallel Foot placement obviously unparalleled (one foot is over half the distance of the other foot/leg)
6. Foot contact timing not equal (Asymmetrical landing) F Foot contact timing equal side-to-side Foot contact timing slightly unequal Foot contact timing completely unequal
7. Excessive landing contact noise F/L Subtle noise at landing (landing on the balls of their feet) Audible noise at landing (heels almost touch the ground at landing) Loud and pronounced noise at landing (contact of the entire foot and heel on the ground between jumps)
8. Pause between jumps F/L Reactive and reflex jumps Small pause between jumps Large pause between jumps (or double contact between jumps)
9. Technique declines prior 10 seconds F/L No decline in technique. Technique declines after five seconds Technique declines before five seconds
10. Does not land in same foot print (Consistent point of landing) F/L Lands in same footprint Does not land in same footprint, but inside the shape Lands outside the shape