Performance
B · Reasonable confidenceDoes weekly training frequency matter for strength?
Subject: Effects of Variations in Resistance Training Frequency on Strength Development in Well-Trained Populations and Implications for In-Season Athlete Training: A Systematic Review and Meta-analysis
What this means
Upper and lower body strength increased at all training frequencies. Over 6 to 12 weeks there was no clear difference in maximal strength between training more or less often.
Cuthbert M, Haff GG, Arent SM, Ripley N, McMahon JJ, Evans M, Comfort P · 2021 · Sports Medicine
What does this rating mean?
A solid systematic review with caveats, or consistent indications with a limited scope.
Findings
In well-trained populations, higher frequency with volume equated did not produce significantly greater strength gains, suggesting that in trained individuals volume and intensity matter more than frequency.
Who this applies to
Well-trained people doing exercises that use several joints at once, such as squats.
What to keep in mind
The studies lasted 6 to 12 weeks. The summary does not state how many studies and participants were included. Results between groups varied moderately across studies.
Practical conclusion for REZA
For REZA's more advanced clients: at matched volume, training frequency doesn't need to go up for extra strength — volume and intensity remain the main levers.
View method and source
Methodology
Meta-analysis
Population
Well-trained populations and in-season athletes
Intervention
Different training frequencies in trained populations
Outcome measures
Maximal strength (1RM)
Limitations
Limited studies in well-trained; heterogeneity; small samples.
Original source
DOI: 10.1007/s40279-021-01460-7 · PMID: 33886099
View on PubMed →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.