Athletic Performance Enhancement, Neuromuscular Function
Conditions
Keywords
Blood Flow Restriction Training, Artistic Jump Rope, Neuromuscular Function
Brief summary
The goal of this randomized controlled trial is to investigate whether blood flow restriction training can improve physical function and sports performance in artistic jump rope athletes. The study will include 30 healthy artistic jump rope athletes aged 18 to 25 years. The main questions this study aims to answer are: 1. Does blood flow restriction training improve neuromuscular function compared with conventional training? 2. Does blood flow restriction training improve muscle strength, power, body composition, physiological responses, and artistic jump rope performance? Researchers will compare participants receiving blood flow restriction training with participants performing conventional training to determine whether blood flow restriction training provides additional benefits. Participants will complete an 8-week training program and undergo assessments before and after the intervention, including muscle function tests, physical performance tests, body composition measurements, and physiological response evaluations.
Detailed description
Blood flow restriction (BFR) training is an exercise method that uses external pressure to partially restrict blood flow during exercise. This method may allow individuals to achieve improvements in muscle function and physical performance while using lower exercise loads. However, the effects of BFR training in artistic jump rope athletes are not fully understood. The purpose of this study is to examine the effects of an 8-week blood flow restriction training program on neuromuscular function, body composition, physiological responses, and sport-specific performance in artistic jump rope athletes. Approximately 30 healthy artistic jump rope athletes aged 18 to 25 years will participate in this study. Participants will be randomly assigned to either a blood flow restriction training group or a conventional training group. Both groups will continue their regular artistic jump rope training during the intervention period. The blood flow restriction training group will complete selected training sessions with individualized blood flow restriction pressure. Before and after the 8-week intervention, researchers will assess changes in neuromuscular function, upper and lower limb muscle strength, explosive power, jump rope-specific performance, body composition, heart rate responses, and blood lactate responses. This study may provide information about whether blood flow restriction training can be used as an effective training strategy to improve physical function and performance characteristics in artistic jump rope athletes.
Interventions
BEHAVIORALBlood Flow Restriction Training
An 8-week blood flow restriction training program combined with regular artistic jump rope training. External pressure will be applied using a blood flow restriction device during selected training sessions.
BEHAVIORALConventional Artistic Jump Rope Training
An 8-week conventional artistic jump rope training program without blood flow restriction.
Sponsors
Shanghai University of Sport
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 25 Years
Healthy volunteers
Yes
Inclusion criteria
1. Adults aged 18 to 25 years. 2. Current artistic jump rope athletes with at least 2 years of regular artistic jump rope training experience. 3. Participants who are able to perform artistic jump rope skills and complete all study-related assessments and training procedures. 4. Participants who are physically healthy and have no medical conditions that may interfere with exercise testing or blood flow restriction training. 5. Participants who have no acute or chronic musculoskeletal injuries affecting the upper limbs, lower limbs, or trunk. 6. Participants who voluntarily agree to participate and provide written informed consent before enrollment.
Exclusion criteria
1. Participants younger than 18 years or older than 25 years. 2. Presence of cardiovascular disease, peripheral vascular disease, respiratory disease, neurological disease, metabolic disease, coagulation disorders, history of thrombosis, severe varicose veins, severe hypertension, or other conditions that may affect exercise safety. 3. Presence of acute or chronic musculoskeletal injuries, including injuries involving muscles, joints, ligaments, tendons, or bones, that prevent safe completion of study procedures. 4. Significant pain, severe fatigue, insufficient recovery, poor sleep condition, or other health conditions that may affect exercise performance or participant safety. 5. Use of medications, nutritional supplements, or sports supplements within the previous week that may influence cardiovascular function, muscle metabolism, blood lactate response, heart rate variability, neuromuscular activation, fatigue response, or exercise performance. 6. Skin damage, infection, dermatological disorders, severe allergy history, or other conditions affecting blood flow restriction cuff application or surface electromyography electrode placement. 7. Inability to understand the study procedures or inability to complete required assessments, including physical performance tests, blood flow restriction training, or blood lactate testing. 8. Refusal to participate in blood flow restriction training or withdrawal of informed consent during the study.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Neuromuscular Function Assessed by Surface Electromyography and Maximal Voluntary Contraction | Baseline and after 8 weeks of intervention | Neuromuscular function will be assessed using surface electromyography (sEMG) and maximal voluntary contraction (MVC) testing. Outcome measures include muscle activation amplitude, root mean square (RMS, μV), integrated electromyography (iEMG, μV·s), mean power frequency (MPF, Hz), and maximal voluntary contraction force (N). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in Upper Limb Muscle Strength Assessed by Hand Grip Strength Test | Baseline and after 8 weeks of intervention | Upper limb muscle strength will be assessed using grip strength testing. The outcome measure is maximal voluntary grip force (kg) measured during maximal effort contraction. |
| Change in One-Repetition Maximum Strength | Baseline and after 8 weeks of intervention | Maximal muscle strength will be assessed using one-repetition maximum (1RM) testing. The outcome measure is the maximal load successfully completed during the strength test (kg). |
| Change in Lower Limb Explosive Power Assessed by Three-Dimensional Force Platform | Baseline and after 8 weeks of intervention | Lower limb explosive power and jump performance will be assessed using a three-dimensional force platform during jump testing. Outcome measures include jump height (cm), peak ground reaction force (N), peak power output (W), and rate of force development (N/s). |
| Change in Upper Limb Anaerobic Power During Wingate Test | Baseline and after 8 weeks of intervention | Upper limb anaerobic power will be assessed using a 30-second upper limb Wingate test performed on an arm crank ergometer. Outcome measures include peak power output (W), mean power output (W), relative peak power output (W/kg), total work (J), and fatigue index (%). |
| Change in Lower Limb Anaerobic Power During Wingate Test | Baseline and after 8 weeks of intervention | Lower limb anaerobic power will be assessed using Wingate cycling tests. Outcome measures include peak power output (W), mean power output (W), relative peak power output (W/kg), total work (J), and fatigue index (%). A 6-second Wingate test will assess explosive power, and a 30-second Wingate test will assess anaerobic capacity and fatigue-related performance. |
| Change in Body Composition Assessed by Dual-Energy X-ray Absorptiometry | Baseline and after 8 weeks of intervention | Body composition will be assessed using dual-energy X-ray absorptiometry (DXA). Outcome measures include body mass (kg), body fat percentage (%), fat mass (kg), lean body mass (kg), and bone mineral content (kg). |
| Change in Physiological Responses During Exercise | Baseline and 8 weeks after intervention | Physiological responses will be assessed using heart rate monitoring and blood lactate testing. Outcome measures include resting heart rate (beats/min), peak heart rate (beats/min), heart rate recovery (beats/min), and blood lactate concentration (mmol/L). |
| Change in Dynamic Balance Performance | Baseline and 8 weeks after intervention | Dynamic balance performance will be assessed using the Y Balance Test. Outcome measures include anterior reach distance (cm), posteromedial reach distance (cm), posterolateral reach distance (cm), and composite reach score (%). |
| Change in Short-Duration Rope Turning Performance | Baseline and after 8 weeks of intervention | Short-duration rope turning performance will be assessed using a 10-second maximal rope turning test. Outcome measures include total repetitions completed within 10 seconds and average movement frequency (repetitions/s). |
Countries
China
Contacts
CONTACTShijun Jin, student
CONTACTLiubin Fu, Student
PRINCIPAL_INVESTIGATORkun Zhu, Professor
Shanghai University of Sport
STUDY_DIRECTORJing Wang, Student
Shanghai University of Sport
Outcome results
None listed