GUEST SERIES | Dr. Andy Galpin: Optimal Protocols to Build Strength & Grow Muscles
Dr. Andy Galpin, professor of kinesiology, explains optimal protocols for increasing strength, speed, and hypertrophy. He details training principles, underlying mechanisms, and specific variables like reps, sets, rest, and nutrition for achieving these fitness goals.
Deep Dive Analysis
20 Topic Outline
Benefits of Strength and Hypertrophy Training for All Ages
Distinguishing Strength vs. Hypertrophy: Adaptations and Goals
Connective Tissue and Bone Adaptations to Resistance Training
Neuromuscular and Cellular Adaptations Underlying Strength Gains
Hypertrophy Mechanisms: Protein Synthesis and Muscle Growth
Muscle Physiology and Plasticity: Myonuclei and Muscle Memory
Non-Negotiable Concepts for Effective Exercise Training
Modifiable Variables Determining Training Adaptations
Speed and Power Training: The "3 to 5" Approach and Periodization
Optimal Warm-up Strategies for Different Training Goals
Repetition Cadence for Strength vs. Hypertrophy Training
Breathing Techniques During Resistance Training: Valsalva Maneuver
Auto-Regulation, Specificity, Variation, and Training to Failure
Advanced Strength and Power Training Techniques: Cluster Sets, DVR
Hypertrophy Training Principles: Stimuli, Volume, and Frequency
Exercise Selection and Splits for Balanced Hypertrophy
Managing Plateaus and Non-Responders in Hypertrophy Training
Combining Cardiovascular and Hypertrophy Training: Interference Effect
Impact of Deliberate Cold Exposure on Hypertrophy
Nutrition and Supplementation for Strength and Hypertrophy
9 Key Concepts
Neuromuscular Aging
This refers to the decline in the nervous system's ability to activate muscles and the muscles' ability to contract, which is the primary driver of functional decline with age. Resistance exercise is the number one tool to combat this, as it helps preserve muscle power and strength more effectively than other forms of exercise.
Sarcoplasmic Hypertrophy
This refers to an increase in muscle size due to an increase in fluid within the muscle fiber, rather than an increase in contractile units (myosin and actin). It can lead to larger muscles without a proportional increase in strength, and is likely a phasic change throughout a training experience.
Muscle Memory (Physiological)
In exercise physiology, muscle memory refers to the ability of muscles to regain size and strength faster after a period of detraining than it took to build them initially. This is now understood to be due to epigenetic changes in the myonuclei's ability to access DNA for muscle growth, rather than just the preservation of nuclei.
Progressive Overload
A non-negotiable principle for continued adaptation, progressive overload means consistently increasing the stress placed on the body over time. Without it, the body reaches a homeostatic state and will not continue to make gains in strength or hypertrophy, though other benefits like mood improvement may still occur.
Auto-Regulation
An exercise programming model where training is adjusted daily based on how one is feeling or performing, rather than sticking to a rigid long-term plan. This allows for flexibility to account for daily variations in recovery, energy, and readiness to perform.
Prilepin Chart
A guideline, primarily from weightlifting and powerlifting, that suggests optimal total repetitions to perform at different percentages of one's one-repetition maximum (1RM) to maximize strength gains while minimizing injury risk. It highlights that significant training volume occurs even at sub-maximal loads.
Cluster Sets
An advanced training technique where a mini-break (5-20 seconds) is taken between individual repetitions within a set. This allows for higher quality (force/power output) per repetition by reducing fatigue accumulation, making it effective for strength, power, and hypertrophy.
Dynamic Variable Resistance
A training method that uses bands or chains to alter the resistance profile of an exercise throughout its range of motion. This allows the load to increase as a lifter gains mechanical advantage (e.g., at the top of a squat), challenging the full strength curve and overcoming limitations of a constant load.
Interference Effect
Refers to the potential for endurance training to hinder or blunt adaptations to hypertrophy training. This effect is primarily an energy management issue and can be mitigated by ensuring sufficient caloric intake and avoiding endurance activities with high eccentric loading of the same muscle groups.
10 Questions Answered
Strength and hypertrophy training is crucial for combating neuromuscular aging, preserving muscle power and strength, enhancing overall functionality, improving immune function, and positively impacting mood and cognitive tasks. It also provides rapid aesthetic feedback, which can significantly boost exercise adherence.
Yes, strength can be improved without adding significant muscle mass by enhancing neuromuscular efficiency (firing rate, synchronization), improving contractility of muscle fibers, and optimizing technique and mechanics. While there's overlap, strength and hypertrophy are distinct adaptations.
Ligaments and tendons do adapt to resistance training, becoming stronger and more tolerant to stress, which is a major factor in injury reduction. Bone mineral density also improves, particularly with axial loading, though the capacity for significant bone density gains diminishes with age, starting around 40.
The core non-negotiable concepts are adherence (consistency beats intensity), progressive overload (continually increasing stress), individualization (tailoring to personal needs), and selecting an appropriate target (balancing specificity and variation).
For strength, the optimal cadence involves attempting to move the weight as fast as possible (e.g., a 3-1-1 tempo: 3 seconds eccentric, 1-second pause, 1 second concentric) to maximize acceleration and force. For hypertrophy, a 3-1-1 or 3-1-2 tempo (adding a second to the concentric phase) is effective, but the specific cadence is less critical than overall volume and proximity to failure.
For heavy lifts, the Valsalva technique is recommended, involving a large abdominal inhale to create intra-abdominal pressure, stabilizing the spine. The breath should be taken before the eccentric portion, and while exhaling during the concentric phase is acceptable, holding the breath for a single maximal repetition is often best to maintain stability.
For strength, going to absolute failure is not always necessary, especially for intermediate lifters, and can be risky. For hypertrophy, getting 'somewhat close to failure' (e.g., 2 reps in reserve) is generally sufficient, though occasional training to failure on safer exercises or as a finisher can be beneficial, especially for highly trained individuals.
For hypertrophy, the recommended weekly training volume per muscle group is generally between 10 to 20 working sets, with 15-20 sets being more optimal for intermediate to advanced individuals. This volume can be achieved through various splits and frequencies, as long as total weekly volume is met.
Yes, deliberate cold exposure immediately after hypertrophy training can blunt the muscle growth response by blocking the signaling cascade that leads to protein synthesis. It's generally not recommended for those prioritizing hypertrophy, and if used for recovery, it should be done on non-training days or significantly separated from hypertrophy workouts.
Creatine is unequivocally the most effective non-macronutrient supplement for strength, power, and hypertrophy, with robust benefits across multiple physiological domains including cognitive function and bone mineral density. Creatine monohydrate is the best-studied form, typically dosed at 3-6 grams per day (5g standard), with timing being irrelevant.
36 Actionable Insights
1. Combat Neuromuscular Aging
Engage in resistance exercise and strength training as it is the primary tool to preserve and fight the loss of neuromuscular function and strength that occurs with aging. This is the only exercise route for this specific benefit.
2. Start Strength Training Any Age
Begin strength and hypertrophy training at any age, even 90+, as significant improvements in muscle size and strength are possible. You don’t lose functionality due to aging itself, but rather a loss of training.
3. Prioritize Training Consistency
Focus on consistency in your training program, as it is the number one predictor of physical fitness outcomes. Consistency beats intensity for long-term results.
4. Implement Progressive Overload
Ensure your training program includes progressive overload, which means consistently and predictably increasing stress (e.g., load, volume) over time. This is critical for continued adaptation and gains in strength and hypertrophy.
5. Plan Training in Blocks
Set specific training plans for blocks of 6 to 12 weeks, rather than just planning day-to-day. This foresight helps guide your focus and ensures you’re working towards specific, long-term goals.
6. Optimize Protein Intake
Consume approximately 1 gram of protein per pound of body weight (or 2.2 grams per kilogram) daily to maximize muscle growth and recovery. Maintaining this high intake simplifies other nutritional variables like protein quality and timing.
7. Supplement with Creatine Monohydrate
Take 3 to 6 grams of creatine monohydrate daily, with 5 grams being a standard dose, adjusted for body size. Creatine is the most effective and well-studied supplement for enhancing strength, power, hypertrophy, and has other benefits like cognitive function and bone density; timing of intake is irrelevant.
8. Avoid Cold Post-Hypertrophy Training
Do not use ice baths or deliberate cold water immersion immediately after hypertrophy training, or even on the same day, as it can blunt the muscle growth signaling cascade. If maximizing hypertrophy is the goal, consider avoiding cold exposure during that training phase.
9. Use Dynamic Warm-ups
Perform a general dynamic warm-up (whole-body movements with momentum) for 5-10 minutes before your workout. This prepares your body, improves mobility, and activates the system without the detrimental effects of static stretching before strength/power work.
10. Warm Up for Peak Performance
For strength and power training, warm up until you feel ready to perform at 100% of your peak power and mobility. For hypertrophy, warm up until you feel ready to work, prioritizing volume over peak power in the warm-up.
11. Breathe and Brace During Lifts
Practice breathing and bracing to create intra-abdominal pressure, stabilizing your spine while lifting. Inhale and brace before the eccentric portion of a lift, and for maximal loads, hold your breath until the repetition is complete.
12. Manage Breathing for Multiple Reps
For multiple repetitions, especially with heavy loads, use a strategic breathing pattern like exhaling after a few reps, resetting, and then continuing. Ensure re-breathing occurs in a safe, locked-out position, not during the active lifting phase.
13. Train Speed & Power with High Intent
When training for speed and power, execute movements with high intent, attempting to move the implement as fast as possible, even with sub-maximal weights. Intention is critical for improving speed and power, regardless of the actual speed of movement.
14. Apply the ‘3-5’ Training Concept
For strength and power, follow the ‘3-5’ concept: 3-5 days/week, 3-5 exercises, 3-5 reps/set, 3-5 sets, and 3-5 minutes rest between sets. This provides a robust and effective framework for progression.
15. Select Compound Movements for Strength/Power
Choose compound, multi-joint movements (e.g., push, pull, lower body hinge, rotation) for strength and power training, focusing on movement patterns rather than isolated muscle groups. This ensures comprehensive development and neurological demand.
16. Prioritize Strength/Power Early in Workout
Perform strength and power exercises at the beginning of your workout when you are freshest, as they are neurologically demanding and quality-dependent. Avoid fatiguing activities like cardio or high-rep work beforehand.
17. Progress Strength/Power Weekly
Increase intensity (load) by 3-5% per week and/or volume by up to 5% per week for strength and power training. Run these progressions for 5-8 weeks, followed by a deload or back-off week.
18. Train to Technical Failure (Strength)
For strength training, aim for technical failure (where form starts to break down) or within 1-2 reps in reserve, rather than absolute muscular failure. Occasionally training to absolute failure can be beneficial for beginners to understand their limits, but should be done safely with a spotter.
19. Consider Cluster Sets for Quality
Implement cluster sets (taking a 5-20 second mini-break between individual repetitions within a set) to maintain high force and power output for each rep. This is effective for strength, power, and hypertrophy, especially for exercises like deadlifts.
20. Minimize Gym Distractions
Reduce distractions like smartphones and music selection during your workout to enhance focus and intent. This improves training quality and efficiency, especially for non-fatiguing strength and power work.
21. Target 10-20 Hypertrophy Sets/Week
Aim for 10-20 working sets per muscle group per week for hypertrophy, with 15-20 sets being more realistic for intermediate to advanced individuals. This volume is crucial for stimulating muscle growth.
22. Utilize 8-15 Rep Range for Hypertrophy
Perform most hypertrophy sets in the 8-15 repetition range, getting close to failure (1-2 reps in reserve). While 4-30 reps can induce growth, the 8-15 range is generally most effective and manageable.
23. Train to Failure Strategically (Hypertrophy)
Incorporate training to momentary muscular failure (inability to complete another rep with good form) on safer, often single-joint exercises or as the last exercise of a workout. This maximizes the hypertrophy stimulus without excessive injury risk.
24. Vary Hypertrophy Exercise Choice
Choose hypertrophy exercises based on personal preference, targeting specific muscles or movement patterns. Include a combination of bilateral (two limbs) and unilateral (one limb) exercises to ensure balanced development and prevent imbalances.
25. Leverage Machines for Isolation
Utilize machines for hypertrophy training, especially for beginners or to target specific muscle groups that are hard to activate with compound free-weight movements. Machines allow for isolation without worrying about stability or injury risk.
26. Include Rotational Movements
Incorporate rotational movements (e.g., cable rotations, medicine ball throws) into your strength and power training. This is important for overall health, wellness, and longevity, balancing push and pull patterns.
27. Don’t Neglect Lower Body Training
Avoid under-appreciating the complexity of leg training; if using body part splits, allocate sufficient days or volume to lower body muscles, not just a single ’leg day.’ Imbalances can occur if upper body is over-prioritized.
28. Consider Full Body Workouts
Opt for full-body workouts 2-3 times per week for hypertrophy, as this approach is more resilient to life’s interruptions and ensures consistent stimulus across all muscle groups. This can be more practical than strict body part splits for many.
29. Adjust Rest Intervals for Hypertrophy
Rest between sets for 30 seconds to 3-5 minutes for hypertrophy, depending on the load and proximity to failure. Shorter rests increase metabolic stress, while longer rests allow for heavier loads; both can be effective if other variables are adjusted.
30. Fuel with Carbohydrates Around Workouts
Consume carbohydrates around your training sessions (pre, mid, or post-workout) to replenish muscle glycogen and power the protein synthesis process. Carbohydrate timing is more critical than protein timing for performance and recovery.
31. Match Post-Workout Carbs to Training
Adjust your post-workout carbohydrate-to-protein ratio based on training type: 1:1 for strength, 2:1 for general workouts, and 3:1 or 4:1 for hard conditioning. This optimizes recovery and fuel replenishment for subsequent training.
32. Address Training Plateaus
If you hit a plateau, consider changing your hypertrophy protocol by either going heavier (lower reps, higher intensity) or lighter (higher reps, higher volume) to provide a new stimulus. Ensure other factors like sleep and nutrition are optimized.
33. Train Rear Deltoids and Neck
Include exercises for the rear deltoids (e.g., reverse flyes) and neck (e.g., isometrics) for balanced shoulder health, posture, and injury prevention. Avoid neck bridges due to potential disc damage.
34. Avoid Plyometrics for Hypertrophy
Do not prioritize plyometrics or Olympic weightlifting variations (snatch, clean & jerk) if your primary goal is hypertrophy. While they offer other benefits, their risk-to-benefit ratio for muscle growth is unfavorable compared to other exercises.
35. Integrate Cardio with Hypertrophy Smartly
Combine cardiovascular training with hypertrophy by ensuring adequate total energy intake and avoiding endurance exercises with high eccentric loading (e.g., running) on the same muscle groups. Separate cardio sessions from lifting, or perform them after lifting, for best results.
36. Improve Overall Fitness for Gains
If you are very unfit, prioritize improving your general physical fitness (e.g., through endurance work) before solely focusing on hypertrophy. Being fitter enhances recovery and allows for greater training volume, leading to more muscle growth in the long run.
8 Key Quotes
If you have a body, you're an athlete.
Andy Galpin
Resistance exercise and strength training is the number one tool to combat neuromuscular aging. You cannot get that through any other form of exercise besides heavy overload strength training.
Andy Galpin
You don't lose these functionalities because of aging. You lose these because of a loss of training.
Andy Galpin
Consistency beats intensity.
Dan Garner
Exercises do not determine adaptation... What determines adaptation is the execution of the exercises.
Andy Galpin
You don't get faster by moving kind of fast. You can't improve power by moving like, eh, powerfully. You have to be trying, regardless of whether you're actually moving faster or not.
Andy Galpin
It is a complete, uh, well, really it's a flat out lie that you have to break a muscle down to cause it to grow. That that's, that's not needed at all.
Andy Galpin
If you're so unfit that you're tying your shoes in your warm-up and you're already breaking a sweat, you probably don't have enough fitness to do enough training to get enough hypertrophy.
Andy Galpin
5 Protocols
The "3 to 5" Approach for Speed, Power, or Strength
Andy Galpin- Train 3 to 5 days per week.
- Select 3 to 5 compound exercises per workout.
- Perform 3 to 5 repetitions per set (less is okay for strength, more is generally not).
- Complete 3 to 5 sets per exercise.
- Rest 3 to 5 minutes between each set.
- Execute each repetition with high intent and maximal speed/power (for power/speed) or maximal force (for strength).
Strength-Focused Repetition Cadence
Andy Galpin- Lower the weight for approximately 3 seconds (eccentric phase).
- Pause briefly (approximately 1 second) at the transition point, ensuring control.
- Lift the weight as fast as possible (concentric phase) for approximately 1 second.
Hypertrophy-Focused Repetition Cadence
Andy Galpin- Lower the weight for approximately 3 seconds (eccentric phase).
- Pause briefly (approximately 1 second) at the transition point, ensuring control.
- Lift the weight for approximately 2 seconds (concentric phase), or as fast as possible.
General Warm-up for Resistance Training
Andy Galpin- Perform 5-7 minutes of general dynamic movements (e.g., high knees, butt kickers, multi-plane joint movements).
- For the first complex exercise of the day, perform specific warm-up sets until perfect movement and peak power/strength are achieved.
- Avoid extensive static stretching prior to strength or power training.
Post-Workout Macronutrient Intake for Training Goals
Andy Galpin- For strength training: Aim for a 1:1 carbohydrate-to-protein ratio (e.g., 35g protein, 35g carbohydrate).
- For hard conditioning/endurance: Aim for a 3:1 or 4:1 carbohydrate-to-protein ratio (e.g., 35g protein, 100-140g carbohydrate).
- For general/combination workouts: Aim for a 2:1 carbohydrate-to-protein ratio (e.g., 35g protein, 60-70g carbohydrate).
- Ensure overall daily protein intake is high (approx. 1g/lb or 2.2g/kg body weight) to minimize the importance of specific timing and quality.