Clinical Trial Details
— Status: Completed
Administrative data
NCT number |
NCT05153980 |
Other study ID # |
B6702021000931 |
Secondary ID |
|
Status |
Completed |
Phase |
N/A
|
First received |
|
Last updated |
|
Start date |
November 2, 2021 |
Est. completion date |
November 30, 2023 |
Study information
Verified date |
December 2023 |
Source |
University Ghent |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
Sixty athletes will be randomized in two groups; (1) an experimental group and (2) a control
group. Both groups will undergo the following procedure:
Moment 1:
1. Baseline testing: countermovement jump, 25m sprint and strength assessment of the
Hamstrings and Quadriceps muscle.
2. Short warm-up (approximately 4 minutes), which will be completed with blood flow
restriction cuffs (experimental group) or without (control group)
3. Post testing: same tests as performed in baseline.
Moment 2:
1. Baseline testing: stiffness measurements of the Biceps Femoris Long Head via Shear Wave
Elastography.
2. Short warm-up (approximately 4 minutes), which will be completed with blood flow
restriction cuffs (experimental group) or without (control group)
3. Post testing: same tests as performed in baseline.
Both moments of testing as well as the order in which the performance tests take place are
randomized.
Description:
Traditionally, athletes perform a warm-up program before participating in sport activities,
due to its assumed beneficial effect on performance and injury prevention. However, within
team sports, substitutes usually do not perform the comprehensive pre-match warm-up. In many
cases, those substitute players get a very short period of time, during the game, to prepare
themselves for coming on to the pitch where they immediately have to perform at a very
high-intensity. Hence, this could lead to a poorer performance and a greater injury risk for
those substitute players, as they did not get a decent warm-up.
Therefore, new techniques are needed in order to prepare the substitute athletes optimally in
a very short period of time (often within a few minutes). Consequently, the aim of this study
is to investigate whether the incorporation of Blood Flow Restriction (BFR) within a warm-up
routine could be of additional value. Both performance parameters and muscle stiffness will
be evaluated. As Hamstring strain Injuries (HSI) are common within sports encompassing
high-speed running, this muscle group will be investigated on muscle stiffness as a
representation of the interventional effect on muscle stiffness. Athletes will be randomized
in two groups of 30 participants (anticipated); (1) an experimental group and (2) a control
group. Both groups will perform baseline testing (5x Countermovement Jump, 25m Sprint and
Muscle Strength of hamstrings and Quadriceps), and a short warm-up program, followed by
repeating the same tests as executed in baseline. The experimental group will receive Blood
Flow Restriction within the warm-up routine, whereas the control group will do the same warm
up program but without BFR.
On a separate occasion, the same athletes will perform the same warm-up routine with a Shear
Wave Elastographic assessment of the Biceps Femoris Long Head before and after (immediately
after, after 5 minutes and once more after 10 minutes) the warm-up.