Is it Ok to Workout One Muscle Group a Week for Results?

Table of Contents

1. Introduction
2. The History and Psychology of the Once-Weekly Split
3. The Science of Hypertrophy and the 48-Hour Window
4. Understanding Total Weekly Volume
5. When Training Once a Week is Actually Better
6. Strategic Recovery: The BUBS Approach
7. Popular Workout Splits Explained
8. The Role of Intensity and Failure
9. Giving Back: Training with Purpose
10. The Verdict on Frequency
11. Putting It All Together for Your Wellness Journey
12. Summary of Key Takeaways
13. FAQ

Introduction

Did you know that individuals who train a muscle group twice a week can experience up to 48% more muscle growth than those who stick to the traditional once-a-week routine? This statistic often stops gym-goers in their tracks, especially those of us who have spent years religiously following the "Monday is Chest Day" philosophy. For decades, the gold standard in the bodybuilding community was the "bro split," where you’d absolutely demolish one muscle group for two hours and then leave it alone for an entire week. But as exercise science evolves, we have to ask ourselves: are we leaving gains on the table by waiting seven full days to hit those muscles again? Or is the recovery time provided by a once-weekly schedule the secret to avoiding burnout and injury?

At BUBS Naturals, we believe that the best fitness routine is one that balances high performance with sustainable wellness. Our mission is rooted in the legacy of Glen “BUB” Doherty—a Navy SEAL, adventurer, and dedicated athlete who lived life with purpose. We carry that purpose forward by providing clean, science-backed supplements and donating 10% of our profits to veteran-focused charities. We aren’t just here to sell you a tub of powder; we’re here to help you navigate the complexities of your training so you can live a life of adventure and longevity.

In this discussion, we will explore the nuances of training frequency. Is it actually okay to workout one muscle group a week, or should you be doubling up? We will dive into the physiological recovery window, the concept of total weekly volume, and how different demographics—from elite athletes to older adults—might benefit from different frequencies. You’ll also learn how to support your body’s natural rebuilding processes through nutrition and supplementation, specifically focusing on how our Collagen Peptides can be the cornerstone of your recovery strategy. By the end of this article, you will have a clear understanding of how to structure your week for maximum efficiency, ensuring that every drop of sweat counts.

The History and Psychology of the Once-Weekly Split

The "once-a-week" muscle group split, often called the "bodypart split," became the dominant way to train during the golden era of bodybuilding. The logic was simple: if you want a muscle to grow, you must subject it to an incredible amount of stress—so much stress that it needs a full week to recover. This led to the creation of National Chest Monday, followed by Back Tuesday, Shoulders Wednesday, and so on. This approach allowed for high intensity and high volume in a single session, making it easy to track and psychologically satisfying. There is something undeniably rewarding about "feeling the burn" so intensely that you’re sore for three days.

However, the question remains: is this the most efficient way to spend your time? For a professional bodybuilder, this split might work because their volume per session is astronomical. But for the rest of us—people with jobs, families, and adventures to pursue—waiting seven days to re-stimulate a muscle might be unnecessary. The psychological comfort of a once-weekly split is often what keeps people tied to it. It’s organized and predictable. But as we move forward, we must look at the biology of the muscle rather than just the tradition of the gym floor.

We’ve seen that many people thrive on this simplicity. If your schedule only allows you to hit the gym three or four days a week, a bodypart split ensures you don't miss anything. But if you are looking for progress, we have to look deeper into the "anabolic window" of the muscle itself. To support these hard-hitting sessions, many of our community members start their mornings with MCT Oil Creamer in their coffee to ensure they have the mental clarity and sustained energy to push through a grueling "Leg Day" that only happens once a week.

The Science of Hypertrophy and the 48-Hour Window

To understand if training once a week is "ok," we have to understand what happens inside the muscle after a workout. When we lift weights, we create microscopic tears in the muscle fibers. The body then works to repair these tears, a process known as muscle protein synthesis (MPS). Research indicates that for most people, MPS remains elevated for about 24 to 48 hours after a workout. By the 72-hour mark, the muscle has largely recovered and returned to its baseline state.

If you only train your chest on Monday, your body is in "growth mode" until Wednesday or Thursday. From Friday until the following Monday, that muscle is essentially sitting idle in terms of growth signaling. By increasing the frequency to twice a week, you keep that growth signal turned on for a much larger percentage of the week. This is why a meta-analysis of multiple studies found that training a muscle group twice a week resulted in significantly more hypertrophy than once a week, even when the total volume was the same.

Recovery isn't just about waiting; it’s about providing the body with the raw materials it needs to rebuild. This is where Collagen Peptides become vital. Collagen provides the amino acids necessary for the health of your tendons, ligaments, and the connective tissues that wrap around your muscles. When you increase your training frequency to twice a week, your joints and connective tissues are under more frequent stress. Supporting them with high-quality, pasture-raised collagen helps ensure that your "growth window" is spent building muscle, not just managing joint discomfort.

Understanding Total Weekly Volume

One of the most important concepts in modern strength training is Total Weekly Volume. This is calculated by multiplying the number of sets, repetitions, and the weight lifted (Sets x Reps x Weight). If you do 20 sets of chest on Monday, your weekly volume for chest is 20 sets. If you do 10 sets on Monday and 10 sets on Thursday, your weekly volume is still 20 sets.

The advantage of splitting that volume across two days is the quality of the work. If you try to do 20 sets of chest in one hour, by set 15, your energy levels are flagging, your form might be slipping, and the weight you can lift is likely decreasing. However, if you do 10 sets on Monday, you can perform every single rep with maximum intensity and perfect form. Then, you recover, and on Thursday, you hit those other 10 sets with fresh energy.

This is where your choice of "is it ok to workout one muscle group a week" becomes a question of quality vs. quantity. For many, the high-quality reps of a higher-frequency split lead to better long-term strength and muscle gains. To maintain this high level of intensity across multiple sessions, we recommend staying on top of your internal health. For example, our Apple Cider Vinegar Gummies can support digestive wellness, ensuring your body is effectively processing the nutrients you need to fuel those extra sessions.

When Training Once a Week is Actually Better

Despite the evidence favoring higher frequency, there are specific scenarios where training a muscle group once a week is not only "ok" but actually preferred. Fitness is not one-size-fits-all, and we must respect the individual's recovery capacity and lifestyle.

Maintenance and Busy Lifestyles

If you are in a season of life where your primary goal is simply to maintain the muscle you have, training each group once a week is perfectly sufficient. If you are traveling, focusing on a new business venture, or dealing with family commitments, don't stress about the "48% more growth" stat. Maintenance requires much less volume and frequency than growth. One heavy, well-executed session per muscle group per week will keep you in great shape.

Older Adults and Longevity

As we age, our recovery capacity changes. A study focusing on older adults (aged 65–79) found that training a muscle group once a week was just as effective as training it twice a week for increasing strength. For this demographic, the risk of overtraining or joint strain often outweighs the potential benefit of a second session. At BUBS, we prioritize longevity. We want you to be able to hike, surf, and play with your grandkids for decades. In these cases, a once-weekly full-body routine or a spread-out split can be incredibly effective, especially when paired with Vitamin C to support antioxidant activity and collagen formation.

Central Nervous System Recovery

Advanced lifters who move extremely heavy weights—think 500-pound deadlifts or 400-pound squats—tax their Central Nervous System (CNS) far more than a beginner. After a truly maximal effort, the CNS can take several days to fully recover, even if the muscles themselves feel fine. In these elite cases, hitting a specific movement pattern only once a week allows the nervous system to reset so that the athlete can bring 100% intensity to the next heavy session.

Strategic Recovery: The BUBS Approach

Whether you decide to train a muscle once or twice a week, the deciding factor in your success will always be recovery. You don't grow in the gym; you grow while you sleep and while you eat. This is the "No BS" truth that we live by. If you are training each muscle group twice a week, you are essentially doubling the demand on your body’s repair systems.

To meet this demand, we advocate for a holistic approach to supplementation. It starts with hydration. Proper fluid balance is required for every metabolic process, including muscle contraction and repair. Our Hydrate or Die – Lemon provides the necessary electrolytes without the sugar crashes of typical sports drinks. When your cells are hydrated, they are more resilient.

Next is the structural support. As we’ve mentioned, Collagen Peptides are the "glue" that holds everything together. By incorporating them into your daily routine, you are providing your body with a consistent stream of the glycine and proline needed for tissue repair. This is especially important for the tendons and ligaments that don't get as much blood flow as muscles and therefore take longer to heal. One scoop of BUBS Collagen in your morning coffee or post-workout shake can make a noticeable difference in how your joints feel after a heavy week of training.

Finally, for those looking to push their strength to the next level, Creatine Monohydrate is a must. It is one of the most researched supplements in the world, known for supporting ATP production—the primary energy source for short, explosive bursts of power. By combining creatine with a twice-weekly split, you are maximizing your body's ability to perform high-quality work in every session.

Popular Workout Splits Explained

If you’ve decided that you want to move away from the "one muscle group once a week" model, how do you actually structure your week? Here are a few of our favorite ways to organize a higher-frequency routine.

The Push/Pull/Legs (PPL) Split

This is a classic for a reason. You divide your movements into three categories:

• Push: Chest, Shoulders, and Triceps.
• Pull: Back and Biceps.
• Legs: Quads, Hamstrings, Glutes, and Calves.

In a six-day-on, one-day-off schedule, you hit each category twice. For example: Monday (Push), Tuesday (Pull), Wednesday (Legs), Thursday (Push), Friday (Pull), Saturday (Legs), Sunday (Rest). This ensures every muscle group is stimulated twice a week while allowing exactly the right amount of recovery time between sessions.

The Upper/Lower Split

This is perfect for those who can only commit to four days a week.

• Monday: Upper Body (Chest, Back, Shoulders, Arms).
• Tuesday: Lower Body (Quads, Hamstrings, Glutes).
• Wednesday: Rest.
• Thursday: Upper Body.
• Friday: Lower Body.
• Weekend: Rest/Adventure.

This split is highly efficient and allows for plenty of time for recovery and other activities, like hiking or mountain biking, which are central to the BUBS lifestyle.

The Full-Body Split

For those who only have three days a week to train, the full-body split is king. You hit every major muscle group every time you walk into the gym (e.g., Monday, Wednesday, Friday). Because you are hitting muscles three times a week, you keep the volume per muscle group low in each session, which prevents excessive soreness and allows you to stay consistent.

The Role of Intensity and Failure

Regardless of your frequency, the intensity of your sets is what drives adaptation. If you train a muscle group once a week, you almost certainly have to train to "failure" (the point where you cannot perform another rep with good form) to trigger growth. Because you won't be back for another seven days, you have to ensure the stimulus is deep and demanding.

Conversely, if you are training a muscle twice or three times a week, you may want to stop one or two reps short of total failure on most sets. This prevents excessive damage that might not heal before your next session. This is a more "rhythmic" approach to training—stimulating the muscle frequently without completely crushing it every time.

This nuance is why listening to your body is so important. If you’re feeling sluggish, it might be time to look at your fueling. Are you getting enough healthy fats for hormonal support? Our Butter MCT Oil Creamer is a fantastic way to get high-quality fats that support sustained energy levels, making it easier to gauge your true intensity levels during a workout.

Giving Back: Training with Purpose

At BUBS Naturals, we believe that fitness is about more than just the reflection in the mirror. It’s about being ready for whatever life throws at you. Our brand was born from a desire to honor Glen “BUB” Doherty’s legacy—a man who lived for the thrill of the mission and the camaraderie of his teammates. Glen was one of the four Americans killed in Benghazi, Libya, in 2012. He was a hero, a friend, and an athlete who believed in doing things the right way.

When you train, whether it's once a week or five times a week, you are participating in a tradition of self-improvement and resilience. We carry that spirit into every product we make. Our 10% Rule—donating 10% of all profits to the Glen Doherty Memorial Foundation and other veteran-focused charities—is our way of ensuring that your wellness journey supports a larger cause. When you choose BUBS, you aren't just buying Collagen Peptides; you are helping to fund scholarships and transition programs for special operations veterans. That purpose, that "why," is often the best supplement for motivation when the weights feel heavy.

The Verdict on Frequency

So, is it ok to workout one muscle group a week? The answer is a resounding "Yes, but..."

Yes, it is okay if you are a beginner, if you are an older adult focusing on health and longevity, or if you are in a maintenance phase of your life. It is also okay if you are performing such extreme volume and intensity in that one session that your body truly requires a week to reset.

However, if your goal is the most efficient muscle growth and strength gain possible, the science points toward a frequency of at least twice a week. By spreading your volume across two sessions, you improve the quality of your sets, keep your muscle protein synthesis elevated, and reduce the likelihood of the extreme "can't walk" soreness that often follows a once-weekly leg demolition.

Ultimately, the best frequency is the one you can stick to for months and years, not just weeks. Consistency is the only true "secret" in fitness. Whether you hit your chest once on Monday or split it between Monday and Thursday, the most important thing is that you show up, you put in the work, and you take care of your body afterward.

Putting It All Together for Your Wellness Journey

Your training routine is a foundational part of your wellness, but it’s just one piece of the puzzle. To truly thrive, you must look at your lifestyle as a whole. Are you getting 7-9 hours of sleep? Are you managing your stress? Are you fueling your body with clean, simple ingredients?

We suggest starting your day with a clear intention. Maybe that means a morning walk followed by a coffee with our MCT Oil Creamer. During your workout, stay focused and keep your hydration levels high with Hydrate or Die – Mixed Berry. Post-workout, prioritize recovery by feeding your joints and muscles with Collagen Peptides.

This holistic approach ensures that you aren't just "working out," but rather, you are building a body that is capable of adventure. We are honored to be a part of that journey with you. Our commitment to quality—NSF for Sport certification, rigorous third-party testing, and no-BS ingredients—means you can trust what you’re putting in your body. And our commitment to Glen’s legacy means you can feel good about where your money is going.

As you look at your calendar and decide on your workout split for the coming weeks, remember that the goal isn't perfection; it’s progress. Whether you decide to stick with your once-a-week routine or venture into the world of higher frequency, do it with purpose. Take care of your joints, stay hydrated, and never forget why you started.

Summary of Key Takeaways

To recap, the decision to train a muscle group once or twice a week depends on your specific goals and your body's ability to recover. While once-a-week training is excellent for maintenance and older adults, twice-a-week training generally offers a higher return on investment for muscle growth and strength.

The key factors to remember are:

• The Recovery Window: Muscle protein synthesis lasts about 48 hours. Training more frequently keeps this "growth window" open longer.
• Volume Quality: Splitting your weekly volume into two sessions allows for higher intensity and better form in every set.
• Structural Integrity: Increased frequency requires better recovery. Collagen Peptides are essential for supporting the tendons and ligaments that work overtime in a high-frequency split.
• Individual Variance: Factors like age, stress, and nutrition will dictate your ideal frequency. Always listen to your body and adjust as needed.

If you’re ready to take your recovery as seriously as your training, we invite you to explore our Collagen Peptides Collection. It is the simplest, cleanest way to support your joints and ensure that you can keep pushing your limits, week after week. One scoop, no excuses. Let's get to work.

FAQ

1. If I only have three days a week to exercise, should I do a bodypart split or a full-body routine?
For most people training three days a week, a full-body routine is superior. This allows you to hit every muscle group three times a week with moderate volume, which is more effective for growth and strength than hitting each group only once. However, if you prefer the intensity of a split, you can do a "Push/Pull/Legs" routine, but keep in mind that each group will only be worked once every seven days.

2. Is it possible to overtrain if I workout each muscle group twice a week?
Overtraining is a real concern, but it’s usually caused by a lack of recovery rather than just the frequency of training. If you are sleeping well, eating enough calories, and supporting your connective tissues with Collagen Peptides, most people can easily handle twice-weekly sessions. If you start to experience persistent fatigue, a drop in performance, or joint pain, it may be a sign to scale back the intensity or add an extra rest day.

3. Does the "once-a-week" rule change if I am only focused on strength rather than muscle size?
Strength is a skill that requires practice. Because strength involves the nervous system learning how to recruit muscle fibers efficiently, higher frequency is often better. Many powerlifters and weightlifters train the same movement (like the squat) multiple times a week to "grease the groove." However, these sessions are carefully managed so that they don't all reach maximum intensity, allowing the CNS to recover.

4. How can I tell if my muscles have recovered enough to train them again?
While some muscle soreness (DOMS) is normal, it isn't the only indicator of recovery. A better sign is your performance. If you go to the gym and find that you are significantly weaker than your last session, or if your "explosiveness" is gone, you likely haven't recovered. Using supplements like Hydrate or Die – Lemon can help speed up the removal of metabolic waste from the muscles, potentially shortening your recovery time and making it easier to stick to a more frequent schedule.