Healthy Subjects, Sports Level 1
Conditions
Keywords
blood flow restriction training, sham blood flow restriction training, BFR, Eccentric training
Brief summary
The goal of this randomized clinical trial study is to compare low-load blood flow restriction (LL-BFRt), sham LL-BFRt, and high-load eccentric training (HL-Et) in healthy level 1 sportsman. The main questions it aims to answer are: 1. Does LL-BFR improve muscle strength better than sham LL-BFRt and HL-Et? 2. Does LL-BFR improve dynamic stability better than sham LL-BFRt and HL-Et? 3. Does LL-BFR prevent ACL injury better than sham LL-BFRt and HL-Et? Participants will be randomized into three intervention groups: LL-BFRt, sham LL-BFRt, and HL-Et. Participants will be asked to do: * In LL-BFRt, participants will be asked to do LL eccentric training (including double leg squats, split squats, deadlifts, and monster walks) with a 30% of repetition maximum (RM) and 70% of arterial occlusion pressure (AOP). * In sham LL-BFRt, participants will be asked to do LL eccentric training with a 30% of repetition maximum (RM) and 10% of arterial occlusion pressure (AOP). * In HL-Et, participants will be asked to do LL eccentric training with a 70% of repetition maximum (RM). Researchers will compare LL-BFRt, sham LL-BFRt, and HL-Et to see if muscle strength, dynamic stability, and ACL injury prevention improve after the interventions and follow-up.
Detailed description
Participants will be asked to do five sets of ten repetitions of each eccentric training, one-minute rest interval for each eccentric training and two mins rest interval between each set.
Interventions
Physical therapist will apply the BFR cuffs with 70% of arterial occlusion pressure on the both legs of participants. Then, participants will be asked to perform eccentric trainings (including, double leg squats, split squats, deadlifts, and monster walks) with 30% of repetition maximum.
PROCEDURESham Low-load Blood Flow Restriction training
Physical therapist will apply the BFR cuffs with 10% of arterial occlusion pressure on the both legs of participants. Then, participants will be asked to perform eccentric trainings (including, double leg squats, split squats, deadlifts, and monster walks) with 30% of repetition maximum.
PROCEDUREHigh-load Eccentric training
Physical therapist will ask participants to perform eccentric trainings (including, double leg squats, split squats, deadlifts, and monster walks) with 70% of repetition maximum.
Sponsors
Udayana University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
15 Years to 35 Years
Healthy volunteers
Yes
Inclusion criteria
* Being 15-35 years old * Perform sports level 1 (soccer, basket ball, futsal, combat martial art) at least twice per week. * Never had an history of ACL injury * Never had an history of sprain or strain grade III * Agree to participate until the end of this study period and sign the inform consent
Exclusion criteria
* Having hypertension, blood circulation disease, anemia, obesity, diabetes, kidney failure, vena thromboembolic, cancer, and tumor. * Disabilities or disabled people.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Muscle strength | 8 weeks | Investigators will measure the quadriceps muscle isometric strength using dynamometer (units: Newton or kilogram). |
| Dynamic stability I | 8 weeks | Investigators will measure the dynamic stability I using Y-balance test (units: centimeter). |
| Dynamic stability II | 8 weeks | Investigators will measure the dynamic stability II using single leg hop test (units: centimeter). |
Countries
Indonesia
Outcome results
None listed