Research
Energy balance
No significant pre-to-post intervention increases in muscular endurance were observed in either training group.
Practitioners should note that increased training frequency may not enhance muscular endurance.
StrongRefutesmedium confidence
No significant pre-to-post intervention increases in muscular endurance were seen in either of the training groups.
Why this rating
The study's design allows for clear conclusions about endurance outcomes.
Source
Resistance Training Frequencies of 3 and 6 Times Per Week Produce Similar Muscular Adaptations in Resistance-Trained Men
Juraj Šarić et al. · The Journal of Strength and Conditioning Research · 2018
DOI 10.1519/jsc.0000000000002909
rct · n=27Cited 48×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Resistance training performed 3 times per week (RT3) and 6 times per week (RT6) produce similar increases in upper-body strength (+4% for RT3 and +6% for RT6) and lower-body strength (+22% for RT3 and +18% for RT6) over a 6-week period.Strong
- Both RT3 and RT6 groups showed significant increases in muscle thickness for elbow extensors (+14% for RT3 and +11% for RT6), rectus femoris (+5% for RT3 and +6% for RT6), and vastus intermedius (+10% for RT3 and +11% for RT6) with no significant between-group differences.Strong
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