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BPIT 5-Line Pilot: Interventional Study on Strength, HRV & Injury Risk Reduction (n=23)

A Prospective, Single-Center, Interventional Study to Evaluate the 5-Line Principle of Balanced Intensity Training (BPIT) for Enhancing Physical Performance and Reducing Injury Risk

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07296640
Acronym
BPIT 5-Line
Enrollment
23
Registered
2025-12-22
Start date
2024-07-01
Completion date
2024-11-30
Last updated
2025-12-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

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

BEHAVIORALBPIT 5-Line Training

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

MMSx Authority Institute for Movement Mechanics & Biomechanics Research Inc.
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
22 Years to 65 Years
Healthy volunteers
Yes

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

MeasureTime frameDescription
Change in 1RM Strength6 weeksChange 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 IncidenceBaseline to Week 6Number 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

MeasureTime frameDescription
Change in Joint Biomechanics (Knee Valgus and Spinal Curvature)Baseline to Week 6Change 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 AdherenceBaseline to Week 6Percentage 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 6Change 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 WeeksChange 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 Feedback6 weeksQualitative 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 6Change 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

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026