CompletedNot Applicable

The Acute Effects of an Isometric Loading Intervention on Lower Extremity Landing Biomechanics in Individuals With Patellar Tendinopathy

United States43 participantsStarted 2017-09-15

Plain-language summary

The purpose of this study is to determine differences in lower extremity landing biomechanics and real-world physical activity between individuals with patellar tendinopathy compared to individuals without patellar tendinopathy,and to determine the acute effects of an isometric loading intervention on lower extremity landing biomechanics in individuals with patellar tendinopathy.

Who can participate

Age range15 Years – 28 Years

SexMALE

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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

✓. Age 15 and post-pubertal (confirmed by Pubertal Development Scale Questionnaire) - 28 years
✓. Actively participating within an organized sport setting (high school, collegiate, club, competitive intramural sports) in their respective team's weekly training and competitions, quantified by a Tegner Activity Level Scale of at least 5.

Exclusion criteria

✕. Any anterior knee pain with no patellar tendon abnormality on ultrasound assessment.
✕. History of any knee joint surgery ever.
✕. History of other (non-knee) lower extremity surgery in the last 1 year.
✕. History of lower extremity injury in last 6 months (other than patellar tendinopathy).
✕. An injection (corticosteroids, plasma-rich-protein, etc.) to the patellar tendon in the last 3 months.
✕. Known history of osteoarthritis or current symptoms related to osteoarthritis (i.e. stiffness, swelling).
✕. Participation in formal rehabilitation for patellar tendinopathy in prior 3 months
✕. Known neurological disorders, including: stroke, multiple sclerosis, ALS, diabetic neuropathy, epilepsy, traumatic brain injury resulting in loss of consciousness, concussion within the last 6 months, cranial neural surgery, balance disorders.

What they're measuring

Difference in the change in mean internal knee extension moment during landing between groups

Timeframe: Pre- and post-intervention condition (~30 minutes)

Difference in the change in mean internal hip flexion moment during landing between groups

Timeframe: Pre- and post-intervention condition (~30 minutes)

Difference in the change in mean peak vertical ground reaction force during landing between groups

Timeframe: Pre- and post-intervention condition (~30 minutes)

Difference in the change in mean peak vertical ground reaction force loading rate during landing between groups

Timeframe: Pre- and post-intervention condition (~30 minutes)

Difference in the change in mean peak patellar tendon force during landing between groups

Timeframe: Pre- and post-intervention condition (~30 minutes)

Trial details

NCT IDNCT03262181

SponsorUniversity of North Carolina, Chapel Hill

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2018-04-20

View on ClinicalTrials.gov More Tendinopathy trials

Plain-language summary

Who can participate

Age range15 Years – 28 Years

SexMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion criteria

✓. Age 15 and post-pubertal (confirmed by Pubertal Development Scale Questionnaire) - 28 years
✓. Actively participating within an organized sport setting (high school, collegiate, club, competitive intramural sports) in their respective team's weekly training and competitions, quantified by a Tegner Activity Level Scale of at least 5.

Exclusion criteria

✕. Any anterior knee pain with no patellar tendon abnormality on ultrasound assessment.
✕. History of any knee joint surgery ever.
✕. History of other (non-knee) lower extremity surgery in the last 1 year.
✕. History of lower extremity injury in last 6 months (other than patellar tendinopathy).
✕. An injection (corticosteroids, plasma-rich-protein, etc.) to the patellar tendon in the last 3 months.
✕. Known history of osteoarthritis or current symptoms related to osteoarthritis (i.e. stiffness, swelling).
✕. Participation in formal rehabilitation for patellar tendinopathy in prior 3 months
✕. Known neurological disorders, including: stroke, multiple sclerosis, ALS, diabetic neuropathy, epilepsy, traumatic brain injury resulting in loss of consciousness, concussion within the last 6 months, cranial neural surgery, balance disorders.