Strength is a skill. The more often you practice a movement pattern under load, the stronger you get at it.

Key Points

Strength is primarily a neural adaptation. Motor unit recruitment, rate coding, and intermuscular coordination all improve with practice frequency.
When total volume is equated, training frequency does not significantly affect maximal strength gains (Colquhoun et al., 2018), but higher frequency makes it easier to accumulate quality volume.
Full body training lets you squat, bench, and deadlift multiple times per week with built-in heavy/light variation.
Spreading heavy compound work across sessions prevents the central fatigue accumulation that degrades performance in back-loaded split sessions.
Frequency-based programming is how every elite strength sport structures training. and it works for intermediates too.

Introduction

In a previous article, Full Body Training vs. Bro Splits for Hypertrophy, I wrote about why training each muscle multiple times per week is often a more effective strategy for building muscle than the traditional "one body part per day" approach. Strength, however, is a different adaptation. While bigger muscles certainly have the potential to produce more force, maximal strength depends on far more than muscle size alone. Your nervous system must learn to recruit more motor units, fire them more rapidly, and coordinate multiple muscles into efficient movement patterns. In other words, strength is as much a skill as it is a physical quality.

That difference changes the conversation around training frequency. Although many of the same principles from the hypertrophy literature still apply, the reasons why full-body training often outperforms traditional body part splits are different when your primary goal is getting stronger. In this article, we'll look at what the research says about training frequency for strength, why practicing the main lifts more often improves performance, and how full-body programming naturally creates a better environment for long-term strength development.

Strength Is Not Just About Muscle Size

If you have been around lifting for any length of time, you have met the person who looks like they should squat 500 pounds but struggles with 315. You have also met the person who weighs 165 and squats 455. The difference is not just muscle mass. It is neural efficiency.

Maximal strength depends on your nervous system's ability to recruit motor units, fire them at high rates (rate coding), and coordinate multiple muscle groups to produce force in a specific movement pattern. These are skills (Sale, 1988). And like all skills, they improve with practice.

This is the fundamental reason full body training has an edge for strength development: it gives you more opportunities to practice the movements that matter.

What the Research Says About Frequency and Strength

The meta-analysis by Grgic et al. (2018) examined the effect of resistance training frequency on strength gains across 22 studies. Their finding: higher training frequencies were associated with greater strength gains. However. and this is important. when total weekly volume was equated between groups, the advantage of higher frequency was diminished.

Colquhoun et al. (2018) drove this point home directly. They compared training the squat, bench press, and deadlift three times per week versus six times per week in competitive powerlifters, with volume equated. After six weeks, both groups made similar strength gains. The authors concluded that training volume, not frequency, is the primary driver of maximal strength adaptations.

So if frequency does not matter when volume is matched, why am I arguing for full body training? Because in the real world, frequency determines how well you can accumulate and dose that volume.

The Neural Practice Effect

Here is what the volume-equated studies do not fully capture: the quality of practice changes with frequency. When you squat heavy once per week, you get one shot to dial in your technique under maximal loads. When you squat three times per week. with varying intensities. you get three opportunities to refine your motor pattern, troubleshoot sticking points, and build the kind of groove that makes heavy singles feel automatic.

Ralston et al. (2017) found in their meta-analysis that higher weekly set volumes were associated with greater strength gains, with a dose-response relationship up to a point. But here is the practical problem: cramming all of your squat volume into a single session means your later sets are performed in a fatigued state where bar speed is slow, technique breaks down, and the neural signal becomes noisy. You are practicing the movement poorly.

Spread that same volume across three sessions, and each set is crisper. You are practicing the movement well. Over weeks and months, that difference in practice quality compounds.

Central Fatigue and Heavy Compound Movements

Squats, deadlifts, bench presses, and overhead presses are taxing. Not just on the target muscles, but on the entire system. Heavy compound movements generate significant central nervous system (CNS) fatigue. a reduction in your brain's ability to maximally activate muscle. This is different from peripheral fatigue (the muscle itself being tired).

In a body part split, you might have a "leg day" where you squat, leg press, lunge, do leg curls, and finish with calf raises. By the time you are done squatting, you are centrally fatigued, and everything that follows can be compromised. Worse, if you are also trying to deadlift that week, you need a separate "back day" that is equally draining.

Full body training distributes heavy compound work across the week. Monday might be heavy squats and moderate bench. Wednesday might be heavy bench and moderate deadlifts. Friday might be heavy deadlifts and moderate squats. Each session has one primary heavy lift, and the secondary movements are performed at manageable intensities. This is exactly how we approach fatigue management at Verro as we outlined in ourFatigue Management, Simplified post , the goal is to manage fatigue so that it never outpaces your recovery.

Heavy/Light Programming: Built Into Full Body

One of the most effective strength programming strategies is daily undulating periodization (DUP) (Rhea et al., 2002), which has varying intensity and volume across training days. A Monday/Wednesday/Friday full body schedule lends itself perfectly to this:

Monday: Heavy squats (3x3 at RPE 8-9), moderate bench (4x6 at RPE 7), light rows
Wednesday: Heavy bench (3x3 at RPE 8-9), moderate deadlifts (3x5 at RPE 7), light squats
Friday: Heavy deadlifts (3x2 at RPE 8-9), moderate squats (4x5 at RPE 7), light bench

One heavy day per lift, spread across the week

Lift	Mon	Wed	Fri
Squat	Heavy	Light	Moderate
Bench	Moderate	Heavy	Light
Deadlift	—	Moderate	Heavy

Daily undulating periodization in a full-body week: each lift gets one heavy, one moderate, and one light session. High weekly volume, optimal frequency, and no single session that buries you (Rhea et al., 2002).

Each major lift gets one heavy session, one moderate session, and one light or off session per week. Total volume is high, frequency is optimal, and no single session buries you. Compare this to a split where your only squat exposure is a grueling leg day that takes 90 minutes and leaves you hobbling for three days.

We actually explored a similar idea in our postWhat Endurance Athletes Can Teach Lifters, where the core insight is, is that endurance athletes do not run one massive session per week. They train frequently, with most sessions at moderate intensity and occasional hard efforts. This builds a robust base while allowing consistent practice and recovery.

Strength training benefits from the same logic. Most of your sets should be at moderate intensities (RPE 6-8), with occasional heavier work (RPE 8-9) to push adaptation. Full body training makes this structure intuitive and easy to design. Splits make it harder because each session tends to push toward the high end for the muscles being trained that day.

The Skill Argument for Beginners and Intermediates

For beginners and early intermediates, the case for full body training is even stronger. These lifters are improving primarily through neural adaptations (Folland & Williams, 2007), learning to recruit more motor units and coordinate movement patterns. They are not yet limited by muscle size. They are limited by skill.

Giving a beginner one day per week to practice the squat is like giving a piano student one lesson per month. You can do it, but progress will be painfully slow. Three squat sessions per week, even at moderate loads, builds competence far faster.

I have seen this consistently with our clients at Verro. Lifters who train full body 3-4 times per week progress faster on their main lifts than those who trained with splits at similar volumes. The skill practice effect is real and it compounds over time.

When Splits Work for Strength

Advanced powerlifters and strength athletes sometimes benefit from upper/lower or squat/bench/deadlift splits because their volume needs are so high that fitting everything into three full body sessions becomes impractical. When you need 15+ sets of squats per week at meaningful loads, spreading that across two, three, or even four or more dedicated sessions (rather than three sessions that also include everything else) can be a sensible organizational choice.

But for the vast majority of intermediate lifters training 3-4 days per week, full body training provides better movement practice, smarter fatigue distribution, and simpler programming.

Practical Takeaways

Practice your main lifts 2-3 times per week. Strength is a skill. More frequent practice under load builds neural efficiency faster than weekly exposure.
Vary intensity across sessions. Use a heavy/light/moderate approach rather than going all-out every time you touch a barbell.
Keep RPE in check. Most working sets should be RPE 7-8. Save RPE 9+ for planned heavy days or testing.
Do not fear submaximal work. Sets at 70-80% of your max still build strength when accumulated across the week. Not every set needs to feel like a grind.
Structure around compounds first. Build your full body sessions around 1-2 primary compound lifts, then fill in with accessory work. This ensures the most important movements get your freshest effort.

References

Citation (APA)	Study Type	Why It Matters	Supports This Claim
Sale, D.G. (1988). Neural Adaptation to Resistance Training. Medicine & Science in Sports & Exercise, 20(5 Suppl), S135-S145.	Review	Foundational review of how the nervous system adapts to resistance training.	Early strength gains are largely neural; practicing the lift trains recruitment and rate coding.
Folland, J.P., & Williams, A.G. (2007). The Adaptations to Strength Training: Morphological and Neurological Contributions to Increased Strength. Sports Medicine, 37(2), 145-168.	Review	Separates neural vs muscular contributions to strength gains.	Beginners and intermediates gain strength mostly through neural skill, which frequency develops.
Ralston, G.W., et al. (2017). The Effect of Weekly Set Volume on Strength Gain: A Meta-Analysis. Sports Medicine, 47(12), 2585-2601.	Meta-analysis	Quantifies the dose-response of weekly set volume on strength.	Higher weekly volume drives strength gains, up to a point.
Grgic, J., et al. (2018). Effect of Resistance Training Frequency on Gains in Muscular Strength: A Systematic Review and Meta-Analysis. Sports Medicine, 48(5), 1207-1220.	Meta-analysis (22 studies)	Pools the effect of training frequency on maximal strength.	Higher frequency associates with greater strength — largely by enabling more volume.
Colquhoun, R.J., et al. (2018). Training Volume, Not Frequency, Indicative of Maximal Strength Adaptations to Resistance Training. Journal of Strength and Conditioning Research, 32(5), 1207-1213.	RCT (volume-equated)	3x vs 6x/week in powerlifters with volume equated.	With volume equated, frequency itself adds little — volume is the primary driver.
Rhea, M.R., et al. (2002). A Comparison of Linear and Daily Undulating Periodized Programs With Equated Volume and Intensity for Strength. Journal of Strength and Conditioning Research, 16(2), 250-255.	RCT	Compares undulating vs linear periodization with volume and intensity equated.	Undulating intensity across the week (built into full body) can outperform a flat plan.
Schoenfeld, B.J., Ogborn, D., & Krieger, J.W. (2016). Effects of Resistance Training Frequency on Measures of Muscle Hypertrophy: A Systematic Review and Meta-Analysis. Sports Medicine, 46(11), 1689-1697.	Meta-analysis	Frequency dose-response for muscle growth (cross-referenced).	Higher frequency supports the muscle size that underpins long-term strength.

DISCLAIMER

This article is for educational purposes only and is not intended as training or medical advice. Strength is influenced by limb proportions, neuromuscular factors, training age, and technique, so individual responses to frequency and volume vary widely.

Several of the studies here are short-term (6-12 weeks), use small samples of trained lifters, or equate volume between groups — we have flagged the study type in the References table so you can weigh each in context. Heavy compound training carries injury risk if loaded or progressed carelessly.

Consult a qualified strength coach or healthcare professional before starting a new program or adding heavy barbell work, particularly if you are new to lifting or returning from injury. At Verro, we treat training frequency as one lever within a larger system — volume, intensity, exercise selection, technique, and recovery — not as a standalone determinant of strength.