Many athletes overlook single leg RDL hamstring balance, but when performed systematically, it delivers direct performance transfer to competition. This guide bridges the gap between research and practice.
We cover the anatomical foundation, step-by-step progression, set/rep programming, and optimal placement in your training week for Single-Leg RDL: Hamstring Strength and Balance.
Scientific Background
Scientific Background
Understanding Single-Leg RDL requires examining key neuromuscular mechanisms. Muscle contraction begins with electrical signals transmitted from the CNS through α-motor neurons to muscle fibers.
Motor Unit Recruitment
Per Henneman's Size Principle (1965), motor units recruit from smallest to largest: Type I → Type IIa → Type IIx. Above ~80% maximum strength, most motor units are active, with further force from rate coding increases. Type IIx fibers contract 4-6x faster than Type I.
Force-Velocity and Power
From Hill's equation (1938), power (P = F × V) optimizes at 30-60% of max force and velocity. Samozino et al. (2012) demonstrated force-velocity profiling accurately diagnoses athlete weaknesses. See also: velocity cutoff bench press
Execution Guide
Practical Execution Guide
Systematic Warm-Up (10-15 min)
① General 5-8 min (jog/row) → ② Dynamic mobility drills (world's greatest stretch, leg swings, hip circles ×8 each) → ③ Neural activation (light jumps 3×3, band pull-aparts 2×12) → ④ Specific warm-up (45%, 65%, 80% for 3-5 reps).
Core Principles
- Maximal velocity intent: González-Badillo (2017): increases EMG 10-15%.
- Technique first: End sets when form degrades.
- Rest periods: Strength 3-5 min, power 2-3 min, hypertrophy 60-90 sec.
Velocity Monitoring
Track MCV with PoinT GO. End sets at 20%+ velocity loss (Pareja-Blanco et al., 2017). Read more: medicine ball slam power
Programming Strategy
Programming Strategy
Weekly Structure (Undulating)
| Day | Focus | Intensity | Volume | Velocity Zone |
|---|---|---|---|---|
| Mon | Max Strength | 87-93% 1RM | 5×2-3 | 0.15-0.30 m/s |
| Wed | Power/Speed | 45-65% 1RM | 5×3 | 0.70-1.0+ m/s |
| Fri | Strength-Speed | 72-83% 1RM | 4×3-4 | 0.35-0.55 m/s |
4-Week Mesocycle
Weeks 1-3: progressive overload (+2.5-5%/week). Week 4: deload (40-50% volume reduction, intensity maintained). Re-measure load-velocity profiles with PoinT GO before and after each mesocycle.
<p>With PoinT GO sensor, record velocity data per set to monitor fatigue in real-time. End sets when velocity loss exceeds 20% to prevent excessive fatigue. <a href="https://poin-t-go.com?utm_source=blog&utm_medium=inline&utm_campaign=single-leg-rdl-hamstring-balance">Learn more about PoinT GO →</a></p> Learn More About PoinT GO
Data-Driven Decisions
Data-Driven Decisions
Key Metrics
- Daily CMJ height: 3 pre-training attempts. Below -5% baseline → reduce volume. Claudino et al. (2017): most reliable fatigue indicator.
- Load-velocity profile: Re-test every 2-3 weeks. Slope changes guide training direction.
- Velocity loss: 15-20% appropriate; 25%+ excessive fatigue.
- Asymmetry: Above 10% → prioritize weaker side.
Weekly Review
In PoinT GO app: ① Weekly MCV trends ② Velocity-load graph slope ③ CMJ daily trends ④ Next week adjustments.
Coaching Insights
Coaching Insights
- Less is more: Three quality sets beat six fatigued sets.
- Limit cues to three: Focus on 1-2 most important cues per exercise.
- Sleep and nutrition non-negotiable: 1.6-2.2g protein/kg, 7-9 hours sleep. Walker (2017): <6 hours reduces strength 30%.
- Use data AND eyes: Numbers are tools—athlete feedback, movement quality, and energy levels matter too.
- Long-term perspective: Elite takes 8-12+ years. Focus on session quality.
Frequently asked questions
01What experience do I need to start Single-Leg RDL?+
02Can I train effectively without a PoinT GO sensor?+
03How long until I see results?+
04Is this applicable during competition season?+
05How do I combine this with other programs?+
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