Materials: (1) Tape measure, (1) Stop watch
Methods:
- Subjects are instructed to perform large one-legged hops in series over the total distance (6m)
- The stopwatch is started when the patient’s heel lifts from the starting position and is stopped the moment that the tested foot passes the finish line
- Measurement is recorded to the nearest 10th of a second
Video Demonstration from Brian Schwabe, DPT, CSCS
Reliability:
| Study | Population | Type | ICC |
| Munro et al, 2011 | Recreational Female Athletes (Average age= 22.3) | Test-Retest Reliability | 0.84 |
| Recreational Male Athletes (Average age= 22.8) | 0.60 | ||
| Reid et al, 2007 | Young adults (Average age= 25.6) s/p ACLR | Test-Retest Reliability | 0.82 |
| Brosky et al, 1999 | Young Males (Average age= 26.0) s/p ACLR | Test-Retest Reliability | 0.88 – 0.97 |
| Bolgla et al, 1997 | Asymptomatic Young adults (Average age= 24.5) | Test-Retest Reliability | 0.66 |
Normative Data:
| Study | Population | Study Design | Limb Symmetry Index | MDC |
| Munro et al, 2011 | Recreational Female Athletes (Average age= 22.3) | Descriptive Laboratory Study | 99.5% | – |
| Recreational Male Athletes (Average age= 22.8) | 99.2% | – | ||
| Myers et al, 2011 | Young adults w/o History of ACLR (Average age= 16.9) | Case Control | 100.0% | – |
| Young adults w/ History of ACLR (Average age=16.9 ) | 96.0% | – | ||
| Reid et al, 2007 | Young adults (Average age= 25.6) 16 weeks s/p ACLR | Prospective, observational with repeated measures | 81.7% | 13.0% |
| Young adults (Average age= 25.6) 22 weeks s/p ACLR | 89.6% | 13.0% |
Research:
1. Bolgla LA, Keskula DR. Reliability of lower extremity functional performance tests. Journal of Orthopaedic & Sports Physical Therapy. 1997; 26: 138-142.
2. Brosky JA, Nitz AJ, Malone TR, et al. Intrarater reliability of selected clinical outcome measures following anterior cruciate ligament reconstruction. Journal of Orthopaedic & Sports Physical Therapy. 1999; 29: 39-48.
3. Reid A, et al. Hop Testing Provides a Reliable and Valid Outcome Measure During Rehabilitation After Anterior Cruciate Ligament Reconstruction. Physical Therapy. 2007; 87(3): 337–349.
4. Munro AG, Herrington LC. Between-session reliability of four hop tests and the agility T-test. Journal of Strength & Conditioning Research. 2011; 25(5): 1470-1477.
5. Myer GD, et al. Utilization of Modified NFL Combine Testing to Identify Functional Deficits in Athletes Following ACL Reconstruction. Journal of Orthopaedic & Sports Physical Therapy. 2011; 41(6): 377–388.
Continued Reading…
John Snyder, DPT 
Only change I would make is having the timer at the finish line to be more exact.
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