To investigate the hypothesis that both patients with an ACLr and individuals without a knee injury show a significantly reduced jump distance during hoptests with a neurocognitive load compared to traditional hop tests.
ID
Source
Brief title
Condition
- Tendon, ligament and cartilage disorders
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
The primary outcome is the difference in jump distance between a traditional
hoptest and the hoptests with added neurocognitive load in 1) patients after
ACLr and 2) individuals without knee injury. The jump distance between the
traditional jump test, the first neurocognitive jump test and the second
neurocognitive jump test is compared.
Secondary outcome
The first secundary outcome is the left-right difference in traditional jump
tests and the left-right difference in jump tests with added neurcognitive load.
Other secondary outcomes consist of parameters derived from muscle activity and
joint angles, measured with EMG and 3D motion sensors, respectively.
Background summary
An anterior cruciate ligament reconstruction (ACLr) is the gold standard for
restoring knee stability in young athletic patients. After a ACLr, more than
90% of amateur athletes expect to be able to return to the preoperative sports
level. Unfortunately, only 55% of patients achieve this goal. In addition, it
is worrying that 23-33% of the athletes under the age of 25 develop a new ACL
rupture in the same or the other knee. Most of these new injuries occur within
two years after return to sports, half of them in the first 6 months after
return to sport. This implies that there may be a mismatch between completing
rehabilitation and resuming sport. Hoptests are often used to determine whether
patients can return to sports. However, these hoptests may not be specific
enough to determine if an athlete is ready to return to his/her sport. In this
study, hoptests with a neurocognitive load are evaluated. In this way, the
sport-specific tasks may be better represented. The jumps are performed
instrumented, so that the quality of movement can be evaluated. The results of
this study provide more information about which tests provide more insight into
whether a patient is ready to return to sport. With this insight,
rehabilitation can be better adapted to the needs of the patient in the future,
so that the number of re-ruptures and / or the number of patients who do not
return to their old sports level can hopefully be reduced.
Study objective
To investigate the hypothesis that both patients with an ACLr and individuals
without a knee injury show a significantly reduced jump distance during
hoptests with a neurocognitive load compared to traditional hop tests.
Study design
This study is a two-arm cross-sectional patient control study consisting of 30
patients with an ACL rupture and 30 individuals without a knee injury.
Intervention
Participants are asked to walk a distance of 15 meters and perform three
different hoptests while wearing motionsensors and EMG sensors. During the
first hoptest, the participant may decide when he/she will jump. During the
second hoptest, the participant must jump as soon as a light is turned on.
During the third and final hoptest, it depends on the color of the light
whether the participant is allowed to jump. In each hoptest, three good jumps
must be performed with the right leg and three with the left leg.
Study burden and risks
Participation in this study takes approximately 60-90 minutes. This is
considered to be a small additional burden, especially given the fact that the
study is linked to an existing appointment whenever possible, or can be planned
at a time that suits the individual without a knee injury. The hoptests with
neurocognitive load will be slightly more difficult than the traditional
hoptests. Jumping with the injured leg may cause some discomfort. There is a
small risk that the participant will drop through the knee when landing after
the jump. However, no cases have been reported in scientific literature.
Participation in this study does not entail more risks than participation in a
training, competition or physiotherapy treatment. For the participants without
a knee injury, these are daily movements that they will also make in their
sport and therefore this test does not involve any additional risks.
Geerdinksweg 141
Hengelo 7555 DL
NL
Geerdinksweg 141
Hengelo 7555 DL
NL
Listed location countries
Age
Inclusion criteria
To participate in this study, a participant of the ACLr group must meet the
following criteria:
- At the time of inclusion, an age between 18 and 30 years old
- Primary ACLr, as evidenced by history and physical examination and additional
examination (MRI);
- Physiotherapy during rehabilitation after ACLr;
- Between 6-24 months after ACLr.
To participate in this study, a participant in the control group must meet the
following criteria:
- At the time of inclusion, an age of 18 to 30 years;
- No knee injury that affects knee instability, such as ACL rupture;
- No lower extremity injury in the 6 months prior to study entry, resulting in
more than 2 weeks of inability to exercise;
- No motor impairment at the time of the measurement.
Exclusion criteria
A potential participant who meets any of the following criteria will be
excluded from this study:
- Color blindness
- Visual impairment;
- Neurological disabilities.
A potential participant of the ACLr group who meets one of the following
criteria will be excluded from participation in this study:
- Complications during rehabilitation (re-rupture, additional knee damage
and/or no functional recovery after 6 months);
- Bilateral ACL rupture and/or revision ACLr;
- Multiligamentary knee injury;
- Swelling of the knee, defined as stroke > 2;
- Degenerative changes in the knee joint;
- Surgical procedures or injuries of the contralateral leg.
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL77864.100.21 |