Performance
B · Reasonable confidenceDoes sprint interval training alongside strength training blunt strength gains?
Subject: Does Sprint Interval Training Cause Interference in Concurrent Training? A Meta-Analysis Study
What this means
Adding sprint intervals to strength training gave the same gains in strength and jump performance as strength training alone. Maximum oxygen uptake rose more.
Ferraro-Farro D, Bandeira-Guimaraes M, Blanco-Rambo E, Ferreira Vieira A, Cadore EL, Benitez-Flores S · 2026 · International Journal of Sports Medicine
What does this rating mean?
A solid systematic review with caveats, or consistent indications with a limited scope.
Findings
Sprint interval training combined with resistance training showed no interference with strength, hypertrophy, jump or sprint performance compared to resistance training alone. VO2max improved further with the addition of sprint interval training.
Who this applies to
Healthy adults aged 18 and over. Training status and sex are not reported in the abstract.
Size of the research
Nine randomized trials with 177 participants in total.
What to keep in mind
The number of participants is small. Greater jump gains appeared only with short sprints of up to 10 seconds, in an additional analysis.
Practical conclusion for REZA
For clients combining strength training with short, intense sprint intervals: no reason for concern about interference, and cardiovascular fitness benefits further.
View method and source
Methodology
Meta-analysis
Population
9 RCTs, 177 healthy adults (≥18 y)
Intervention
Sprint interval training-based concurrent training vs resistance training alone (≥6 supervised sessions over ≥2 weeks)
Outcome measures
Lower- and upper-body strength, hypertrophy, VO2max, jump and sprint performance
Limitations
Small evidence base (9 trials, 177 participants); short interventions; mostly young healthy participants.
Original source
DOI: 10.1055/a-2820-4527 · PMID: 41734815
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Next study →Neuromuscular Adaptations to Same Versus Separate Muscle-Group Concurrent Aerobic and Strength Training in Recreationally Active Males and Females
This information is general education about scientific research. It is not personal medical advice and does not replace diagnosis or treatment by a doctor or other healthcare professional. If you have symptoms, a medical condition or take medication, consult your GP or treating professional before changing your training or nutrition.