파워리프팅을 위한 VBT: 스쿼트, 벤치, 데드리프트 자동 조절

Powerlifting has traditionally been a percentage-based sport. Programs prescribe loads as a percentage of your 1RM, and you follow the numbers regardless of how you feel on a given day. The problem is that your true 1RM fluctuates by 10-18% on any given day based on sleep, stress, nutrition, and accumulated fatigue (Greig et al., 2020). Training at a fixed 85% of a stale 1RM means some days you are overreaching and other days you are leaving gains on the table.

Velocity-based training (VBT) solves this by using real-time barbell speed as a proxy for intensity. Because the load-velocity relationship is remarkably linear and stable within an individual, measuring the velocity of your warm-up sets allows you to estimate your true 1RM on that specific day and adjust working loads accordingly. This guide shows you exactly how to implement VBT across all three powerlifts.

Skepticism toward VBT in powerlifting circles is understandable. Powerlifting rewards grinding through slow, heavy reps, and the sport does not require the high-velocity movements that VBT was originally designed for. However, VBT offers powerlifters several distinct advantages that address the specific demands of the sport:

• Objective autoregulation — RPE (rate of perceived exertion) is the current gold standard for powerlifting autoregulation, but it is subjective and requires years of experience to calibrate accurately. Velocity provides an objective number that correlates strongly with %1RM, removing guesswork.
• Daily 1RM estimation — By recording velocity at 2-3 warm-up loads, you can estimate your 1RM for that day without ever attempting a maximal lift. This allows you to train at the correct relative intensity every session.
• Fatigue management — Monitoring velocity loss within a set tells you exactly how much fatigue you are accumulating. A 20% velocity loss from rep 1 to the last rep of a set corresponds to approximately 2 reps in reserve (RIR), while a 30-40% loss approaches failure.
• Competition peaking — Tracking velocity trends across a training cycle allows you to identify when you are peaking and when you are fatigued, enabling precise taper timing for competition.
• Long-term progression monitoring — If your velocity at a given absolute load increases over time, you are getting stronger even if your tested 1RM has not changed yet. This provides early indicators of adaptation.

A landmark study by Gonzalez-Badillo et al. (2017) found that powerlifters who received velocity feedback during training achieved greater strength gains than those training at identical loads without feedback. The feedback mechanism itself enhanced motor recruitment and effort.

The three powerlifts have different velocity profiles due to variations in range of motion, muscle groups involved, and movement mechanics. Using squat velocity benchmarks for the bench press is one of the most common VBT implementation errors.

Back Squat velocity benchmarks:

Bench Press velocity benchmarks:

Deadlift velocity benchmarks:

These are population averages from trained male lifters. Individual variation of plus or minus 0.05 m/s is common. You must build your own profile to use these effectively.

One of the most powerful applications of VBT for powerlifters is estimating your 1RM on any given day without ever attempting a true max. This is done by exploiting the linear relationship between load and velocity.

How it works:

1. During your warm-up, perform single reps with maximal intent at 3 or more progressively heavier loads (e.g., 60%, 70%, 80% of your last known 1RM).
2. Record the mean concentric velocity at each load.
3. Plot load on the x-axis and velocity on the y-axis. The relationship should form a nearly straight line.
4. Extrapolate the line to your known minimum velocity threshold (MVT) — the velocity at which your true 1RM occurs.
5. The load at which the line crosses your MVT is your estimated daily 1RM.

Minimum Velocity Thresholds by exercise:

• Back Squat: 0.20 - 0.30 m/s (average ~0.25 m/s)
• Bench Press: 0.10 - 0.17 m/s (average ~0.15 m/s)
• Deadlift: 0.12 - 0.20 m/s (average ~0.16 m/s)

Your personal MVT should be established by performing an actual 1RM test while measuring velocity. This number tends to be stable over time for a given individual and exercise.

Practical example:

A lifter with a known squat MVT of 0.25 m/s records the following during warm-ups:

• 100 kg at 0.72 m/s
• 120 kg at 0.55 m/s
• 140 kg at 0.40 m/s

Using linear regression, the estimated load at 0.25 m/s is approximately 157 kg. The lifter's daily estimated 1RM is 157 kg. If their program calls for 80% 1RM, today's working weight would be 126 kg rather than a fixed number from a stale test.

Research by Jovanovic and Flanagan (2014) validated this approach, finding that the load-velocity relationship predicted 1RM within 3-5% accuracy when using at least 3 data points with good technical consistency.

Beyond daily 1RM estimation, VBT enables rep-by-rep and set-by-set autoregulation. Here are three practical autoregulation strategies for powerlifters:

Strategy 1: Velocity-based load selection

Instead of prescribing 82.5% of 1RM, prescribe a target velocity. For example, prescribe working sets at 0.40-0.48 m/s on the squat. The athlete loads the bar until they find the weight that produces velocity in this range. This inherently adjusts for daily readiness.

Strategy 2: Velocity stop sets

Prescribe a velocity floor. For example: squat sets of up to 5 reps, stop the set when velocity drops below 0.35 m/s. On a good day, the athlete completes all 5 reps. On a bad day, they may stop at 3. This regulates volume based on fatigue rather than forcing a fixed rep count.

Strategy 3: First-rep velocity monitoring

Track the velocity of the first rep of each set across multiple sets. If the first-rep velocity drops more than 8-10% from set 1, accumulated fatigue is high and the session should be capped. For example:

• Set 1, Rep 1: 0.48 m/s
• Set 2, Rep 1: 0.46 m/s
• Set 3, Rep 1: 0.44 m/s
• Set 4, Rep 1: 0.40 m/s (17% drop from set 1 — consider stopping)

Combining VBT with RPE:

VBT and RPE are not mutually exclusive. Many elite powerlifters use both: RPE for the subjective experience and velocity for the objective measurement. When the two disagree (e.g., RPE says 8 but velocity indicates the load is closer to 90% than 80%), it often signals accumulated fatigue that subjective perception has not yet registered. This combined approach creates a robust autoregulation system.

Competition peaking is where VBT provides perhaps its greatest advantage to powerlifters. The goal of peaking is to express maximal strength on competition day, which requires dissipating accumulated fatigue while maintaining or slightly improving neural readiness.

Velocity indicators of readiness:

• Rising velocity at submaximal loads — If your velocity at 80% 1RM has been trending upward over the final 2-3 weeks of your prep, you are likely supercompensating. This is a strong indicator that your taper is working.
• Stable or improving estimated daily 1RM — As volume drops during the taper, your daily estimated 1RM should stabilize or increase. A declining estimated 1RM during the taper suggests insufficient recovery or overtaper.
• Consistent first-rep velocities — Low variability in first-rep velocity across sessions indicates a stable, well-prepared nervous system.

Practical peaking protocol with VBT (final 3 weeks):

Selecting competition attempts using velocity:

1. Opener — Select a load you consistently hit at 0.35-0.40 m/s (squat) in training. This is a confident, conservative opener you could triple on any day.
2. Second attempt — Target a load corresponding to 0.28-0.33 m/s — a solid single that leaves room for a third attempt.
3. Third attempt — This should approach your MVT (0.20-0.27 m/s for squat). Velocity data from your final training sessions helps predict whether your target third attempt is realistic.

This sample program integrates VBT into a standard powerlifting periodization framework with four training days per week. All intensity prescriptions use velocity targets rather than fixed percentages.

Phase 1: Hypertrophy/Accumulation (Weeks 1-4)

• Squat (2x/week): Day 1 — 4x5 at 0.50-0.60 m/s, 20% velocity loss cutoff. Day 2 — 3x8 paused squat at 0.55-0.65 m/s.
• Bench (2x/week): Day 1 — 4x5 at 0.38-0.48 m/s, 20% velocity loss cutoff. Day 2 — 3x8 close-grip bench at 0.42-0.52 m/s.
• Deadlift (1x/week): 4x4 at 0.45-0.55 m/s, 20% velocity loss cutoff.

Phase 2: Strength (Weeks 5-8)

• Squat: Day 1 — 5x3 at 0.40-0.50 m/s, 15% velocity loss cutoff. Day 2 — 4x4 front squat at 0.48-0.58 m/s.
• Bench: Day 1 — 5x3 at 0.30-0.38 m/s, 15% velocity loss cutoff. Day 2 — 4x4 floor press at 0.35-0.45 m/s.
• Deadlift: 5x2 at 0.35-0.45 m/s, 15% velocity loss cutoff.

Phase 3: Peaking (Weeks 9-12)

• Week 9-10: Heavy singles and doubles. Squat 5x2 at 0.30-0.38 m/s. Bench 5x2 at 0.22-0.30 m/s. Deadlift 4x1 at 0.28-0.36 m/s.
• Week 11: Overreach. Squat 3x1 at 0.25-0.32 m/s (near-max). Bench 3x1 at 0.18-0.25 m/s. Deadlift 2x1 at 0.22-0.30 m/s.
• Week 12: Taper. Openers only. Squat 2x1 at 0.35-0.40 m/s. Bench 2x1 at 0.28-0.33 m/s. Deadlift 1x1 at 0.32-0.38 m/s. Confirm velocity trends and finalize competition attempts.

Daily protocol for every session:

1. Record velocity at 3 warm-up loads to estimate daily 1RM.
2. Select working weight based on the velocity target for the day.
3. Monitor velocity loss within each set. Terminate if the cutoff is exceeded.
4. Track first-rep velocity across sets. Cap total sets if first-rep velocity drops more than 10% from set 1.
5. Log all data for trend analysis across the training cycle.