{"id":868,"date":"2026-05-26T22:55:29","date_gmt":"2026-05-26T19:55:29","guid":{"rendered":"https:\/\/www.life-on.com.ua\/?p=868"},"modified":"2026-05-26T22:55:31","modified_gmt":"2026-05-26T19:55:31","slug":"concurrent-training-order-strength-first","status":"publish","type":"post","link":"https:\/\/www.life-on.com.ua\/en\/concurrent-training-order-strength-first\/","title":{"rendered":"Concurrent training order: strength before cardio provides a +11% boost to explosive strength."},"content":{"rendered":"

Concurrent training order \u2014 this is a question that comes up in every conversation. Those who train twice a week have asked themselves this. Barbell first, then treadmill, or vice versa. Until recently, the answer was \u201cwhatever's convenient.\u201d Now, the answer is more specific.<\/p>\n\n\n\n

A 12-week RCT, 45 obese men (BMI ~30). Two concurrent training orders in the same session were compared: strength before cardio (CRE) and cardio before strength (CER). A third group was the control. Training was 3 times per week, 60-minute sessions: 30 minutes of strength + 30 minutes of cardio.<\/p>\n\n\n\n

Result: VO2 max is not affected. Strength, explosive power, and muscular endurance are affected, and noticeably.<\/p>\n\n\n\n

What did the study show about concurrent training order<\/h2>\n\n\n\n

Participants: 45 young men with obesity. No regular exercise for six months prior to the start. Strength training \u2014 6 basic exercises (bench press, deadlift, squats, lateral raises, toe raises, bicep curls). Progression from 50% to 80% of 1RM over 12 weeks. Endurance training \u2014 running or exercise bike from 55% to 75% of maximum heart rate. Calorie intake and diet composition were controlled \u2014 there were no differences between the groups. In other words, this was not a case of \u201cone group eating more protein\u201d, but the pure effect of concurrent training order.<\/p>\n\n\n\n

Both groups improved compared to the control. The question is, by how much.<\/p>\n\n\n\n

Indicator<\/th>Strength \u2192 Cardio (CRE)<\/th>Cardio \u2192 Strength (CER)<\/th><\/tr><\/thead>
VO\u2082max<\/td>+13.3%<\/td>+11.6%<\/td><\/tr>
Maximum strength<\/td>+21.8%<\/td>+15.0%<\/td><\/tr>
Explosive force<\/td>+28.2%<\/strong><\/td>+17.2%<\/td><\/tr>
Muscular endurance<\/td>+26.7%<\/strong><\/td>+17.0%<\/td><\/tr>
MVPA a day<\/td>+19 mins<\/td>+11.9 mins<\/td><\/tr>
Steps per day<\/td>+3488<\/td>+1580<\/td><\/tr>
Reduction in % fat<\/td>More<\/td>less<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

The biggest gap is in explosive power and muscular endurance. This is almost 1.5 times better than the same volume of work. The only difference is what came first.<\/p>\n\n\n\n

The VO2max increase is almost identical, which confirms that concurrent training order does not \u201cbreak\u201d cardio adaptation. You can do strength first without losing the aerobic component.<\/p>\n\n\n\n

Why does order matter at all<\/h2>\n\n\n\n

Concurrent training order is not a matter of comfort. It is a question of the metabolic state the muscle enters into when performing strength work.<\/p>\n\n\n\n

Cardio before strength doesn't mean strength goes in \u201ctired\u201d. It means strength goes in a completely different metabolic state.<\/p>\n\n\n\n

After 30 minutes of endurance exercise at 60\u201375% of maximum heart rate, the pH of the muscle changes. This is metabolic acidosis. Phosphate (Pi) and extracellular potassium (K\u207a) accumulate. The sensitivity of muscle fibres to calcium decreases\u2014and this is the \u201ccontract\u201d signal transmitted from the nerve to the muscle. Plus, central fatigue sets in \u2014 the brain sends a weaker signal to repeat the action.<\/p>\n\n\n\n

The practical implication is simple: you\u2019ll do fewer reps on the same 80% from 1PM. Not because you\u2019ve \u201clost strength\u201d. It\u2019s because the internal environment of the muscle is no longer the same.<\/p>\n\n\n\n

If the force comes first, these mechanisms don't have time to engage. The volume of work done in the power part is greater. The adaptation is stronger.<\/p>\n\n\n\n

The authors add another layer. When strength training precedes cardio, there are higher blood levels of free fatty acids, glycerol, and growth hormone before endurance work. This means that the subsequent cardio \u201cburns\u201d fat more effectively, hence the additional abdominal fat loss in the CRE group.<\/p>\n\n\n\n

How does this affect body composition<\/h2>\n\n\n\n

Concurrent training itself changes body composition \u2013 dozens of studies have shown this. But the order of exercises changes specifically which ones<\/em> disappears.<\/p>\n\n\n\n

In the CRE group, the percentage of body fat decreased further. Most importantly, visceral (abdominal) fat: the fat around the internal organs. This is linked to an increased risk of diabetes, hypertension, and cardiovascular disease. This is not an aesthetic difference. It is a difference in metabolic risk one or two years after the intervention.<\/p>\n\n\n\n

Bone mineral density increased equally in both groups \u2014 bone requires more than 12 weeks to show a difference in order.<\/p>\n\n\n\n

What cyclists and runners should do with this<\/h2>\n\n\n\n

Last week<\/a> There was an article here about a study in which cyclists were made to do strength training at 70% of their maximum capacity \u2014 and their VO\u2082max increased by 61%. That analysis concluded with the statement that \u201cheavy strength training is necessary\u201d. This study adds to that: if everything is done in a single session \u2014 strength training first, then cycling.<\/p>\n\n\n\n

The logic is simple: a muscle fibre should not enter the force phase with a depleted calcium transport system. Otherwise, even a properly prescribed heavy workout on the 70-80% will yield poorer results than it could have.<\/p>\n\n\n\n

When concurrent training order is not critical<\/h2>\n\n\n\n

If your sole aim is aerobic fitness (VO2max, cardiovascular endurance), the order doesn't matter. Both groups in the study saw virtually identical gains.<\/p>\n\n\n\n

If strength training and cardio are done on different days, the order is not an issue at all. It only becomes relevant within a single session. For people with limited time, this is the typical scenario.<\/p>\n\n\n\n

And also: the study was conducted on young men with obesity, with no training experience. Extrapolation to highly trained athletes should be done with caution. In their case, the interference effect mechanism might work slightly differently due to adaptation.<\/p>\n\n\n\n

Practical steps<\/h2>\n\n\n\n

If the training is combined into one session, the structure looks like this:<\/p>\n\n\n\n

    \n
  1. 10-minute warm-up \u2014 joints, mobility, light cardio up to 50% of maximum heart rate<\/li>\n\n\n\n
  2. Strength training: 25\u201330 mins \u2014 basic exercises with progression to 70\u201380% of 1RM, 3 sets, 60\u201390-second rest periods<\/li>\n\n\n\n
  3. Endurance session: 25\u201330 mins \u2014 running, exercise bike, rowing, with intensity increasing to 70\u201375% of maximum heart rate<\/li>\n\n\n\n
  4. 5-min warm-down \u2014 stretching of working muscles<\/li>\n<\/ol>\n\n\n\n

    Total duration is 60-75 minutes. If time is even shorter, reduce the endurance part, not the strength part. Strength is what gives the main advantage of concurrent training order.<\/p>\n\n\n\n

    If training is on different days, the concurrent training order is not an issue. Separating cardio and strength by at least 6-8 hours already removes most interference. Better still is 24 hours.<\/p>\n\n\n\n

    One-sentence conclusion<\/h2>\n\n\n\n

    For the same amount of work, concurrent training in a \u201cstrength before cardio\u201d order yields approximately 11 percentage points greater explosive power gains. This is the best that can be achieved simply by reversing the order of exercises.<\/p>\n\n\n\n

    \n\n\n\n

    Sources<\/strong><\/p>\n\n\n\n