Healthy
Conditions
Brief summary
This prospective, single-center, interventional pilot (n=23) evaluates the 5-Line Principle of Balanced Intensity Training (BPIT) over 6 weeks at GFFI Fitness Academy. Participants (18 males aged 22-48, 5 females aged 20-33) will receive BPIT 5-Line Training (3 sessions/week, 6 weeks). No control group. Conducted July 1 - November 30, 2024. Progressive intensity via anatomical lines: 1. Ground-Based (Low Intensity); 2. Knee-Level (Low-Moderate); 3. Standing (Moderate); 4. Head-Level (Moderate-High); 5. Plyometric/High-Impact (High). Aims to assess changes in strength, HRV, and injury risk.
Detailed description
STUDY DESIGN: Prospective, single-center, interventional pilot (n=23) with single-group assignment. All participants receive the BPIT 5-Line intervention. Assessments at baseline and Week 6. INTERVENTION: BPIT 5-Line Training: 3 x 60-minute sessions/week for 6 weeks, progressing across five intensity lines: 1. Ground-Based (Low Intensity, e.g., prone planks); 2. Knee-Level (Low-Moderate, e.g., shoulder press); 3. Standing (Moderate, e.g., half-squat); 4. Head-Level (Moderate-High); 5. Plyometric/High-Impact (High Intensity). Specific exercises detailed in Training Protocol Manual. OBJECTIVES: Primary - Evaluate BPIT's impact on 1RM strength (e.g., squat, bench press, deadlift) and training-related injury incidence. Secondary - Assess changes in HRV (RMSSD), HRR (bpm in 60s), EMG muscle activation, joint biomechanics (knee valgus, spinal curvature), adherence (% sessions completed), and participant feedback (questionnaires).
Interventions
All 23 participants received BPIT 5-Line Training (3-5 sessions/week, 6 weeks). Intensity progressed via 5 anatomical lines: 1. Ground-Based, Low Intensity; 2. Knee-Level, Low-Moderate; 3. Standing, Moderate; 4. Head-Level, Moderate-High; 5. Plyometric/High-Impact, High Intensity. Sessions 45-60 min, monitored via HRV, pain, fatigue.
Sponsors
Study design
Eligibility
Inclusion criteria
* Healthy adults aged 22-65 years * Regular fitness trainees (≥2 sessions/week prior) * Able to provide informed consent * No recent musculoskeletal injury (past 3 months)
Exclusion criteria
* \- Cardiovascular disease or uncontrolled hypertension * Current musculoskeletal injury or surgery (past 6 months) * Neurological disorders affecting movement * Pregnancy * Use of performance-enhancing substances
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in 1RM Strength | 6 weeks | Change in one-repetition maximum (1RM) strength for key exercises (e.g., squat, bench press) from baseline to week 6. Measured in kilograms (kg) using standard 1RM testing protocol. Time Frame: Baseline to Week 6 Unit of Measure: kilograms (kg) |
| Injury Incidence | Baseline to Week 6 | Number of new musculoskeletal injuries reported during the study period, defined as any complaint requiring medical attention, training modification, or rest exceeding 1 day. Measured as incidence rate per 100 participant-weeks (normalized for exposure in this 23-participant pilot). Unit of Measure: injuries per 100 participant-weeks |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in Joint Biomechanics (Knee Valgus and Spinal Curvature) | Baseline to Week 6 | Change in knee valgus and spinal curvature angles during functional movements from baseline to week 6, measured in degrees via 3D motion analysis or goniometer. Time Frame: Baseline to Week 6 Unit of Measure: degrees |
| Training Adherence | Baseline to Week 6 | Percentage of completed training sessions from baseline to week 6, measured via session logs. Time Frame: Baseline to Week 6 Unit of Measure: percentage |
| Change in Heart Rate Variability (HRV) | Week 6 | Change in Heart Rate Variability (RMSSD) from baseline to week 6, measured via 60-second daily monitoring using HRV device/app. Time Frame: Baseline to Week 6 Unit of Measure: milliseconds (ms) |
| Heart Rate Recovery (HRR) | 6 Weeks | Change in Heart Rate Recovery (bpm decrease in 60 seconds post-exercise) from baseline to week 6, measured via HR monitor. Time Frame: Baseline to Week 6 Unit of Measure: beats per minute (bpm) |
| Participant Feedback | 6 weeks | Qualitative feedback from post-study questionnaires, scored on a Likert scale (1-5) for satisfaction and perceived benefit. Time Frame: Week 6 Unit of Measure: units on a scale (1-5) |
| Change in Muscle Activation (EMG Amplitude) | Baseline to Week 6 | Change in Electromyography (EMG) amplitude for key muscle groups during specific exercises from baseline to week 6, measured as percentage of maximum voluntary contraction (%MVC) using EMG equipment. Time Frame: Baseline to Week 6 Unit of Measure: percentage of maximum voluntary contraction (%MVC) |
Countries
India