Barbell Complexes After 45: The Evidence Behind Combined Training

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Strength & Muscle

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On September 28, 2026, Men’s Journal published a look at barbell complexes through research on combining resistance and endurance exercise. The story revisited a method that Romanian weightlifting coach Istvan “Steve” Javorek developed in 1967.

What research did the article draw on?

The Men’s Journal report brought together several reviews rather than presenting a new exercise trial. One was a September 2026 meta-analysis comparing concurrent training with endurance training alone. Another was a systematic review and meta-analysis of 45 studies on circuit-style resistance training. The article also discussed a meta-analysis on muscle growth and maximal strength.

Participant demographics and trial duration are not available in the retrieved coverage. It does not specify the participants’ ages or sex, their training background or the length of the interventions. That leaves no basis for describing these results as a trial conducted specifically in men over 45.

The report connects several training approaches that need to remain separate:

Concurrent training combines resistance exercise and endurance exercise.
Circuit-style resistance training is the format examined in the reported 45-study review.
A barbell complex links several exercises using one bar without setting it down between movements.

Javorek’s method belongs to that last category. According to Men’s Journal, his stated goals were to improve performance while saving time and making training more enjoyable.

The sequence described in the story begins with deadlifts, hang cleans, front squats and hang snatches. It continues with overhead squats, presses, rows and Romanian deadlifts. The bar stays in the lifter’s hands as the exercises change.

This matters when reading the research: the article describes a particular workout while drawing on reviews of broader training formats. Understanding what the researchers examined comes before deciding how much support those findings offer the workout itself.

What did the reviews report about fitness and muscle?

The coverage reported outcomes across aerobic fitness and skeletal muscle. Its main findings were:

Improved aerobic capacity with concurrent training. Men’s Journal reports that the September 2026 meta-analysis found similar improvements in VO₂ max from concurrent training and endurance training alone. This is the aerobic fitness finding behind the article’s interest in combining training demands.
Similar muscle mitochondrial adaptations. The same reported analysis found similar skeletal-muscle mitochondrial adaptations from concurrent training and endurance training alone. These were reported alongside the VO₂ max results rather than as findings about muscle size or maximal strength.
Broader gains from resistance circuits. The separate review of 45 studies reportedly found improvements in muscle mass, strength and cardiorespiratory fitness. Men’s Journal gives an average VO₂ max increase of 6.3% for that review.
No general compromise to whole-muscle growth or maximal strength. A further meta-analysis summarized by Men’s Journal found that concurrent aerobic and resistance training generally did not compromise those outcomes. The report also noted more nuanced findings at the muscle-fiber level.

The useful point is the breadth of the reported outcomes. The coverage discusses aerobic fitness, muscle mass and strength rather than treating a workout as belonging to just one category. That makes combined training relevant to men who care about lifting and staying active outside the gym.

A separate Open Access Government discussion argues that adding resistance training need not compromise endurance adaptations when it does not add excessive volume or reduce the quality of endurance work. It also says resistance training may improve endurance performance. This is a broad discussion article rather than the underlying study behind the September findings.

Taken together, the coverage argues against assuming that resistance and endurance goals must always work against each other. The question becomes how the training demands are combined, rather than whether combining them automatically defeats the purpose.

That is a more useful starting point than judging a session only by whether it looks like lifting or cardio. It also keeps attention on the outcomes being studied rather than the reputation of a particular workout.

Where does the evidence stop?

The circuit findings are not direct evidence for Javorek’s exact sequence. Men’s Journal calls resistance circuits the closest studied cousin of barbell complexes. Related training formats can inform a discussion without proving that the same results apply to every exercise sequence.

The retrieved coverage does not give the September meta-analysis’s title or authors. It also leaves the circuit review unidentified and does not provide its study-quality assessment or uncertainty estimates. Those gaps limit how closely readers can assess the reported findings and how much weight to place on them.

The reported percentage improvement is a review average, not a personal forecast. It does not establish what an individual reader would gain from a complex. The muscle-fiber nuances also argue against turning the strength findings into a blanket claim that every training schedule produces the same response.

Time efficiency needs careful wording too. Saving time was part of Javorek’s stated aim, but an aim is not a measured comparison showing that his method is superior. The age of a workout does not settle that question either.

For readers interested in the wider context, questions about movement and capability with age remain separate from whether one named routine has direct research support.

What should men over 45 take from this?

For men who already perform the lifts well, a complex is one possible way to combine resistance movements with cardiovascular demand. The practical message in Men’s Journal is not to turn every complex into an all-out exhaustion test or use it to replace dedicated strength and aerobic work.

Strength coach Doug Briggs, quoted in the article, recommends choosing the load for the weakest movement in the sequence. That places the loading decision on what the lifter can manage across the full series rather than on the strongest lift. He also stresses technique and says the weight used helps determine the muscle-growth response.

This loading principle matters because the sequence includes technically demanding movements such as hang cleans and hang snatches. It also includes overhead squats. The article’s emphasis on movement quality and fatigue management argues against treating this particular sequence as a universal starting point.

The useful planning question is what role a complex would serve. A compact session that combines demands has a different purpose from a session built around a dedicated strength or endurance goal. That question belongs alongside how a weekly lifting schedule is organized, rather than being settled by how demanding one workout feels.

Fatigue deserves its own attention without becoming the measure of success. Readers weighing that part of training can also read about interpreting recovery and adjusting training. Personal questions about exercise suitability belong with a qualified training professional or clinician.

The clearest practical takeaway is therefore modest: judge a complex by its purpose, the load each movement allows and the quality of the lifting. Its compact format is a reason to assess it, not a reason to force it into every program.

What this changes: the reported evidence reinforces the case for combining training goals without changing best practice or establishing Javorek’s complex as the preferred method.

How Everfitguys helps

Day-to-day decisions about barbell complexes sit with lifters and any professionals advising them; the role of Everfitguys is to explain the research. Its research-led reporting addresses confusion around healthy-aging claims so men in midlife and later life can judge findings with strength and physical capability in mind.

Read the research