Impact of Fatigue on Jumping Performance
| Status: | Completed |
|---|---|
| Conditions: | Healthy Studies |
| Therapuetic Areas: | Other |
| Healthy: | No |
| Age Range: | 19 - 40 |
| Updated: | 5/5/2017 |
| Start Date: | November 2016 |
| End Date: | April 2017 |
The purpose of this study will be to determine the effects of a 2-minute single limb lateral
step-down fatigue test versus a 30 second side hop test on single limb forward hop distance.
step-down fatigue test versus a 30 second side hop test on single limb forward hop distance.
Current methods to induce fatigue often incorporate equipment not available in all clinical
settings or include tasks that are difficult to standardize. One of the tests to fatigue the
leg muscles is the leg extensor fatigue test using a unilateral weight machine. There are
drawbacks to this testing including the clinician having access to the equipment, testing
only fatigued a single muscle group, and it is less sport/task specific compared to jump
testing. Our previous work has incorporated the use of a side hop task that is performed by
hopping over two lines 40 cm apart for 30 seconds. While this does induce fatigue and
decreases single leg forward hop performance the overall decrease was relatively small (<10
cm). It is likely necessary to induce a greater amount of fatigue; thus further limiting
single leg forward hop performance.
settings or include tasks that are difficult to standardize. One of the tests to fatigue the
leg muscles is the leg extensor fatigue test using a unilateral weight machine. There are
drawbacks to this testing including the clinician having access to the equipment, testing
only fatigued a single muscle group, and it is less sport/task specific compared to jump
testing. Our previous work has incorporated the use of a side hop task that is performed by
hopping over two lines 40 cm apart for 30 seconds. While this does induce fatigue and
decreases single leg forward hop performance the overall decrease was relatively small (<10
cm). It is likely necessary to induce a greater amount of fatigue; thus further limiting
single leg forward hop performance.
Inclusion Criteria:
- No history of knee surgery
- Tegner score >5
Exclusion Criteria:
- Participants with traumatic spine or lower extremity injury within past 6 months
- Participants who are unable to give consent or are unable to understand procedures of
experiment
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