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This study aims to compare the effects of low-intensity blood flow restriction training combined with resistance training versus traditional high-intensity resistance training on body composition (skeletal muscle mass, body fat mass) and maximal strength (isometric mid-thigh pull, vertical jump, isometric squat pull) in male military academy cadets. The study lasts for 6 weeks and adopts a randomized parallel-group design.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Low-Load Blood Flow Restistance Training (LL-BFR) | Experimental | Participants perform low-load resistance training (30% 1RM) combined with blood flow restriction. Lower extremity exercises include squat, deadlift, weighted lunge, and resisted running. Pneumatic cuffs (KAATSU Master) are applied at the proximal thigh at 200 mmHg during exercise and rest intervals. Training: 1 set of 30 reps, followed by 3 sets of 15 reps; 60-second rest between sets; 3 days/week for 6 weeks. |
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| Traditional High-Load Resistance Training (HL-RT) | Active Comparator | Participants perform traditional high-load resistance training at 70% 1RM. Same exercises as experimental group: squat, deadlift, weighted lunge, and resisted running. 4 sets of 8-12 reps; 3-minute rest between sets; 3 days/week for 6 weeks. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| KAATSU Master Pneumatic Cuff | Device | Pneumatic pressure cuffs applied to the proximal thigh at 200 mmHg to achieve partial blood flow restriction during low-load resistance training (30% 1RM). Initial warm-up at 40 mmHg. |
| Measure | Description | Time Frame |
|---|---|---|
| Peak Force in Isometric Mid-Thigh Pull (IMTP) | Maximal vertical ground reaction force during isometric mid-thigh pull measured on ELIGA portable force plate. Participants pull a fixed bar with knee angle 125°-135° for 3-5 seconds. Best of 2 trials recorded in Newtons (N). | Baseline (T1), Week 3 (T2), Week 6 (T3) |
| Measure | Description | Time Frame |
|---|---|---|
| Countermovement Jump Height (CMJ) | Vertical jump height calculated from flight time measured on ELIGA portable force plate. Formula: height = g × t²/8, where g = 9.81 m/s². Hands on hips, self-selected countermovement depth. Best of 3 trials in centimeters (cm). | Baseline (T1), Week 6 (T3) |
| Body Fat Mass |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Pangfeng Liu Liu | Contact | 18569427353 | 965004077@qq.com |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Physical Training Hall | Recruiting | Changsha | Changsha | 410073 | China |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 39025894 | Background | Yang K, Chee CS, Abdul Kahar J, Tengku Kamalden TF, Li R, Qian S. Effects of blood flow restriction training on physical fitness among athletes: a systematic review and meta-analysis. Sci Rep. 2024 Jul 18;14(1):16615. doi: 10.1038/s41598-024-67181-9. |
| Label | URL |
|---|---|
| Related Info | View source |
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| High-Load Resistance Training | Behavioral | Traditional resistance training at 70% of one-repetition maximum (1RM) without blood flow restriction. |
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Total body fat mass measured by bioelectrical impedance analysis (InBody). Expressed in kilograms (kg). |
| Baseline (T1), Week 6 (T3) |