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Hop Testing s/p ACL reconstruction
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4 hop tests and Minimal Detectable change
1. Single hop for distance +/-8.09%
2. 6-m timed hop +/-12.96%
3. Triple hop for distance +/-10.02%
4. Crossover hop for distance +/-12.25%
Combination of all tests +/-7.05%
Description:
For each hop test, have patient perform one practice test for each limb, followed by 2 measured and recorded tests. No additional warm-up activity is necessary. For each set of tests, patient is instructed to begin with the nonoperative limb. To minimize fatigue, a rest period can be offered between types of hop tests (up to 2 minutes) and between individual hop tests if needed (typically less than 30 seconds). Patient starts each test with the lead toe behind a clearly marked starting line. No restrictions are placed on arm movement during testing, and no instructions are provided regarding where to look.
For single, triple, and crossover hops to be deemed successful, the landing must have been maintained for 2 seconds. An unsuccessful hop is classified by any of the following: touching down of the contralateral lower extremity, touching down of either upper extremity, loss of balance, or an additional hop on landing. If the hop is unsuccessful, the patient is reminded of the requirement to maintain the landing, and the hop is repeated.
Note: Crossover hop for distance
Performed over a 15-cm strip on the floor. Patient hops forward 3 times while alternately crossing over a marking. Patient is instructed to position themselves such that the first of the 3 hops is lateral with respect to the direction of crossover.
The series of tests takes approximately 10 minutes to administer.
Bottom line: The described series of 4 hop tests provide reliable and valid perrformance based outcome measures for patients undergoing rehabilitation after ACL reconstruction. These findings support the use and facilitate the interpretation of hop tests for research and clinical practice.
View abstract
View article (PDF)
Noyes, et al - original article describing hop testing |
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