How do split- and full-body training programs compare regarding muscle and strength gains according to the provided text?

According to the provided text, a meta-analysis found that muscle and strength gains were not significantly different between split- and full-body training programs. This finding, as discussed in the article, isn't surprising because the volume and load lifted (relative intensity, or % of 1RM) were similar between the two program types in most of the studies reviewed. The main difference between the programs was frequency, which is not very impactful for hypertrophy when training volume is equated, or for strength when training load is equated.
Therefore, on the surface, the results suggest that lifters can train with either type of program, regardless of their goals, and still maximize their results. The text indicates that this statement is mostly true, but there are specific circumstances where one program type might be more practical to achieve a desired outcome. These circumstances include considering the exercise order principle for specific strength and muscle growth, and when an individual can only train a limited number of days (2-3 days/week), or when attempting to achieve very high volumes for short periods.
In summary, the text suggests that both split- and full-body programs can lead to similar muscle and strength gains when training volume and load are equated. The choice between them may come down to practical considerations and specific goals related to exercise order and training frequency.
What specific scenarios or goals might make either split- or full-body training programs more practically advantageous to implement?

Generally, both split- and full-body training programs can lead to similar results for building strength and size. Lifters can often choose whichever they prefer or fits their schedule. However, there are specific circumstances where one might be more practically advantageous than the other.
Here are some scenarios where a split-body program might be more practically advantageous:
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When prioritising specific strength goals: If a lifter's primary goal is to increase the strength of particular movements like the squat, bench press, or deadlift, a split-body program makes it easier to prioritise these exercises at the beginning of a session, consistent with the exercise order principle for specific strength. This allows for maximal effort on those key lifts without being affected by fatigue from earlier exercises.
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Potentially when needing to focus on lagging muscle groups: While exercise order doesn't significantly impact overall muscle growth, if someone wants to bring up the development of smaller muscle groups like biceps or triceps, prioritising them earlier in a split-body session might be beneficial. This is because effort levels for these smaller muscles might be lower if they are always trained after larger, more fatiguing exercises.
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When a lifter finds full-body workouts too fatiguing: If the systemic fatigue from a full-body workout makes it difficult to maintain effort and volume across all muscle groups, a split-body program, which typically involves less total volume per muscle group per session, might be a better option.
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When aiming for very high volumes for short periods: Although the effectiveness of later sets might diminish, a split-body program might allow for the inclusion of a higher number of sets for specific muscle groups in a dedicated session.
Here are some scenarios where a full-body program might be more practically advantageous:
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When training frequency is limited: If an individual can only train 2-3 days per week, a full-body program allows for each muscle group to be trained more frequently within that limited timeframe compared to many split routines. The source provides examples of how to structure full-body programs to still prioritise major lifts with limited training days.
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When aiming to increase overall training volume through higher frequency: Full-body programs can be implemented with higher frequencies (e.g., around five days per week), which can be a vehicle for achieving greater total weekly volume across all muscle groups. The source illustrates how a 3-day full-body program can be translated into a 5-day version to increase weekly sets.
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When translating a higher frequency split routine to a lower frequency schedule: If someone needs to reduce their training days, a split-body program can be adapted into a full-body program that can be completed in fewer sessions per week. This often requires incorporating time-efficient training strategies.
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When general strength and size are the goals without specific prioritisation: If the primary goal is general muscle growth and strength gains across the board, either split- or full-body programs can be effective, allowing the lifter to choose based on preference and schedule. Full-body allows for frequent practice of compound movements.
Ultimately, the "most practical" choice depends on the individual's specific goals, training availability, recovery capacity, and personal preferences. When transitioning between program styles, especially from split to full-body, nuanced adjustments regarding exercise selection, volume distribution, and the inclusion of time-efficient strategies should be considered.
What key adjustments or considerations arise when translating training programs between split- and full-body routines based on this guide?

Based on the MASS Research Review, several key adjustments and considerations arise when translating training programs between split- and full-body routines.
Firstly, when translating a split-body program to a full-body program, nuanced adjustments beyond just combining exercises from different days are necessary for practical reasons.
One major consideration is the exercise order principle, especially when aiming to maximize strength on specific movements. In a split routine, it's easier to prioritize specific exercises by performing them first on a dedicated day. When moving to a full-body program, especially with limited training days (like 3 days/week), the principle of staggering the prioritized exercises becomes important. This involves strategically placing exercises to manage fatigue and allow for sufficient performance on key lifts like squats, bench press, and deadlifts, which might be trained more frequently in a full-body program. For example, power-focused training, which generates less fatigue, might be placed after a strength or hypertrophy exercise.
Another consideration, particularly relevant when translating for strength goals with limited training frequency, is the potential need for time-efficient programming strategies such as rest-pause training and agonist/antagonist supersets to accommodate all necessary exercises within fewer training sessions.
When hypertrophy is the primary goal, exercise order is less critical. However, even in this case, when translating a split program (like the one in Table 3 where each muscle group is prioritized on a certain day) to a full-body program (like in Table 4), several points need attention:
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Distribution of volume: Each individual day in the full-body program will likely have less total volume per muscle group, but the total weekly volume for each muscle group will be spread across more training days. This is evident in the comparison of weekly sets between the split-body program in Table 3 and the full-body program in Table 4, as shown in Table 8.
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Incorporating time-efficient strategies: Full-body workouts can become lengthy, so time-saving techniques might be necessary.
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Managing systemic fatigue: Since full-body workouts can be more systemically fatiguing, it might be beneficial to split up major exercises that target the same muscle groups across different days within the same week (e.g., not performing squats and bench press in the same session).
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Careful exercise positioning: Exercises should be placed strategically within and across training days to minimize the impact of fatigue from one exercise or day on the performance of others. For instance, highly fatiguing exercises might be placed before an off day to allow for recovery.
Finally, when considering high-frequency full-body training (e.g., five days per week) as a way to increase overall volume, the translation from a lower frequency full-body program (e.g., three days per week) involves managing fatigue by training farther from failure, incorporating recovery strategies like light weight "recovery squats", and further emphasizing time-efficient methods to keep individual sessions manageable.
In summary, translating between split- and full-body routines requires careful consideration of training goals (strength vs. hypertrophy), training frequency, exercise order and prioritization, fatigue management, and the strategic implementation of time-efficient programming techniques. The specific adjustments will depend on the initial split program and the desired structure and goals of the full-body program.