Pickup Soccer May Improve Youth Heart Health Markers

Pickup-style soccer may do more for inactive young people than provide an hour away from a screen. A 2024 meta-analysis found that small-sided soccer games were associated with lower systolic blood pressure and triglycerides in untrained children and adolescents after interventions lasting at least eight weeks. The average differences versus passive control were 4.0 mmHg lower systolic blood pressure and 30 mg/dL lower triglycerides.

Those are useful changes in risk markers, especially for young people who start with excess weight or elevated cardiometabolic risk. They do not prove that a few games of soccer prevent heart attacks decades later, and they do not establish that soccer matches a well-designed HIIT program. The evidence supports a narrower, more practical conclusion: organized small-sided games can be a credible exercise option for inactive youth, and adding HIIT may improve the results further.

Why small-sided games can count as exercise

Small-sided soccer games, or SSGs, put fewer players on a reduced pitch—often formats such as 3v3 through 7v7. The ball stays involved, players accelerate and recover repeatedly, and the session can deliver intermittent high-intensity work without asking children to spend the afternoon staring at a stopwatch. That format may be easier to accept than a conventional exercise prescription, although direct long-term adherence comparisons with structured HIIT are still missing.

The best broad estimate comes from Gómez-Álvarez et al.'s 2024 systematic review and meta-analysis. It combined 16 controlled studies with 2,872 untrained participants younger than 18 years and required interventions to last at least eight weeks. Compared with passive control conditions, SSG programs reduced systolic blood pressure by 4.0 mmHg and diastolic pressure by 1.3 mmHg, and lowered triglycerides by 30 mg/dL. The review also reported significant improvements in cardiorespiratory fitness, waist circumference, and body composition.

The 4.0 mmHg systolic result is the headline number because systolic pressure tracks cardiovascular risk over time. Triglycerides are also clinically relevant in youth with overweight or obesity, where elevated levels can accompany insulin resistance and other metabolic risk markers. Still, these are biomarker and fitness outcomes, not evidence of fewer future cardiovascular events.

The publication details make the review more credible than a casual collection of before-and-after studies. Its protocol was registered in PROSPERO, it followed PRISMA reporting standards, and it assessed randomized trials with ROB2 and non-randomized controlled studies with ROBINS-I. Yet sound review methods cannot erase the limitations of the underlying studies.

The effect estimates need a cautious reading

The meta-analysis pooled randomized and non-randomized controlled trials in one random-effects model. Non-randomized exercise studies can overestimate effects because participants and groups may differ before the intervention begins. The available report does not provide extractable confidence intervals or full I² heterogeneity statistics for the blood-pressure and triglyceride estimates, so readers cannot judge their precision or how consistently the studies agreed. An RCT-only sensitivity result is also unavailable.

Population mix matters as much as statistics here. The studies included children described as healthy or as having health conditions; they were not limited to one BMI category. Young people with overweight, obesity, higher blood pressure, or higher triglycerides at baseline may have more room to improve than healthy-weight peers with normal measurements. The pooled averages therefore should not be treated as a promise that every child will see a 4.0 mmHg or 30 mg/dL change.

Small-sided soccer has evidence as an active intervention for inactive youth. It does not yet have the evidence needed to prescribe one universal pitch size, team size, session length, or weekly dose.

That distinction also limits comparisons with HIIT. Several reviews support HIIT for pediatric fitness and cardiometabolic health, including a 2021 meta-analysis in Pediatrics and a 2024 umbrella review. But the available summaries do not provide pooled blood-pressure and triglyceride estimates that can be validly compared with the SSG figures above. Calling soccer equivalent to HIIT would outrun the data.

Adding HIIT appears to improve the outcome

A 2025 randomized controlled trial by Bo Zheng et al. tested that question more directly in overweight youth. It assigned participants to SSG alone, HIIT alone, or a combined SSG-plus-HIIT program. The combined program improved cardiometabolic and physical-fitness markers more than either single approach. The SSG-only group also improved, which supports its usefulness as a standalone intervention in this higher-risk pediatric population.

The trial's three-arm structure is valuable because it separates the combined program from its component parts. It also delivers an inconvenient result for anyone trying to turn recreational soccer into a miracle protocol: if SSG alone produced the full attainable adaptation, adding HIIT should not have improved outcomes further. It did.

The study does not establish why the combination worked better. SSG likely delivers repeated bursts of running alongside sport-specific movement and skill work, while HIIT gives coaches tighter control over intensity. That is a plausible explanation, not a demonstrated mechanism. A 2024 network meta-analysis of concurrent aerobic and resistance training in children and adolescents similarly found advantages for combined training on fitness outcomes, but it studied a different intervention and cannot explain the soccer-HIIT result.

What adult trials add—and what they cannot answer

Two 2024 trials by Qi Xu and colleagues help make SSG more measurable, but they enrolled sedentary young adults rather than children. In one 16-week randomized trial of 60 sedentary overweight adults with a mean BMI of 30.4, participants completed three SSG sessions per week and improved BMI, fat mass, VO₂max, and waist circumference; attendance exceeded 75%. In a related four-month trial of 60 sedentary adults with BMI above 28, cumulative perceived exertion and GPS-derived training load correlated with changes in fitness and body composition, with attendance above 85%.

Those findings suggest that soccer's exercise dose can be tracked rather than guessed. The relevant studies are the 16-week SSG randomized trial and the training-load analysis. They do not define an optimal pediatric dose. Children are not smaller young adults, and the adult attendance figures do not establish that youth will sustain the same schedule.

A practical verdict

For schools, community programs, and clinicians working with overweight youth, small-sided soccer is a reasonable way to deliver meaningful physical activity with little equipment: a ball, cones, space, and supervision. The strongest pooled youth evidence supports improvements in blood pressure, triglycerides, fitness, and body-composition measures versus passive control after at least eight weeks. The results are encouraging, but the mixed study designs and unclear heterogeneity lower confidence in the exact effect sizes.

If a program can safely include structured intervals, the 2025 randomized trial gives a better case for combining HIIT with SSG than for choosing either alone. What remains unknown is the pediatric minimum effective dose, whether changes persist after the program ends, how healthy-weight children respond, and whether SSG beats equally time-matched structured aerobic training. Those are the studies that would turn an appealing activity into a precise prescription.