17/05/2026
Just published ๐ฅ
๐ง๐ต๐ฒ ๐ฒ๐ณ๐ณ๐ถ๐ฐ๐ฎ๐ฐ๐ ๐ผ๐ณ ๐๐๐ฟ๐ฒ๐ป๐ด๐๐ต ๐ฒ๐
๐ฒ๐ฟ๐ฐ๐ถ๐๐ฒ ๐ฑ๐ผ๐๐ฎ๐ด๐ฒ ๐ผ๐ป ๐ฝ๐ฎ๐ถ๐ป ๐ฎ๐ป๐ฑ ๐ฑ๐ถ๐๐ฎ๐ฏ๐ถ๐น๐ถ๐๐ ๐ถ๐ป ๐ฝ๐ฒ๐ผ๐ฝ๐น๐ฒ ๐๐ถ๐๐ต ๐น๐ผ๐ ๐ฏ๐ฎ๐ฐ๐ธ ๐ฝ๐ฎ๐ถ๐ป: ๐ฎ ๐๐๐๐๐ฒ๐บ๐ฎ๐๐ถ๐ฐ ๐ฟ๐ฒ๐๐ถ๐ฒ๐ ๐ผ๐ณ ๐ฟ๐ฎ๐ป๐ฑ๐ผ๐บ๐ถ๐๐ฒ๐ฑ ๐ฐ๐ผ๐ป๐๐ฟ๐ผ๐น๐น๐ฒ๐ฑ ๐๐ฟ๐ถ๐ฎ๐น๐
๐๏ธโโ๏ธ Although strength exercises are recommended for for back pain (LBP) (https://pmc.ncbi.nlm.nih.gov/articles/PMC8477273/, https://pubmed.ncbi.nlm.nih.gov/40624581/), more information is needed on how to prescribe them. To date, no systematic review (SR) has investigated the impact of strength exercise parameters (e.g., intensity, frequency, sets, repetitions, exercise type, and treatment duration) on outcomes for LBP.
๐ A brand-new SR of randomized controlled trials (RCTs) by de Oliveira et al. (https://link.springer.com/article/10.1007/s00586-026-09901-5) aimed to investigate the efficacy of strength exercises dosages on pain intensity and disability in people with LBP. Comparisons of interest were placebo, sham, waiting list, and no intervention to clarify exercise efficacy.
๐ Although the review question was broad, the included evidence ultimately applied only to people with chronic non-specific low back pain; no eligible trials involved acute, subacute, radicular, or specific spinal conditions. Eight randomized controlled trials were included in the qualitative synthesis, and five contributed to the meta-analysis.
Main clinical finding
๐ Strength exercise showed statistically significant short-term improvements in both pain and disability compared with minimal intervention. The pooled effects were:
โฌ๏ธ Pain intensity: MD โ15.89 points on a 0โ100 scale, 95% CI โ27.66 to โ4.13
โฌ๏ธ Disability: MD โ9.30 points on a 0โ100 scale, 95% CI โ13.80 to โ4.81
โ
These effects suggest a small to moderate short-term benefit, with the pain effect approaching a clinically meaningful range depending on the threshold used. However, the certainty of evidence was low to very low, so the estimates are uncertain.
๐๐ผ๐๐ฎ๐ด๐ฒ-๐๐ฝ๐ฒ๐ฐ๐ถ๐ณ๐ถ๐ฐ ๐ฒ๐ณ๐ณ๐ฒ๐ฐ๐๐
๐๏ธโโ๏ธ The most consistent effects were seen for high-intensity, low-frequency, lumbar extensor-focused strength training.
โถ๏ธ ๐๐ถ๐ด๐ต ๐ถ๐ป๐๐ฒ๐ป๐๐ถ๐๐ >60% 1๐ฅ๐
High-intensity strength exercise produced statistically significant effects:
โฌ๏ธ Pain: MD โ19.3, 95% CI โ27.0 to โ11.6
โฌ๏ธ Disability: MD โ14.2, 95% CI โ15.7 to โ12.8
โ
This was one of the strongest signals in the review and suggests that progressive loading above 60% 1RM may be more effective than lower-intensity strengthening for chronic non-specific low back pain.
๐๐ผ๐ ๐๐ฒ๐ฒ๐ธ๐น๐ ๐ณ๐ฟ๐ฒ๐พ๐๐ฒ๐ป๐ฐ๐: ๐ผ๐ป๐ฐ๐ฒ ๐ฝ๐ฒ๐ฟ ๐๐ฒ๐ฒ๐ธ
Once-weekly strength training was associated with significant improvements:
โฌ๏ธ Pain: MD โ19.3, 95% CI โ27.0 to โ11.6
โฌ๏ธ Disability: MD โ11.8, 95% CI โ16.2 to โ7.5
โ
Training more than once per week did not show the same consistent effect. Clinically, this may indicate that higher-load lumbar strengthening does not necessarily require high weekly frequency, possibly because recovery and tolerability are important in this population.
๐ฆ๐ต๐ผ๐ฟ๐ ๐๐ฟ๐ฒ๐ฎ๐๐บ๐ฒ๐ป๐ ๐ฑ๐๐ฟ๐ฎ๐๐ถ๐ผ๐ป: โค3 ๐บ๐ผ๐ป๐๐ต๐
Shorter programs showed significant effects:
โฌ๏ธ Pain: MD โ19.9, 95% CI โ26.0 to โ13.8
โฌ๏ธ Disability: MD โ13.4, 95% CI โ15.2 to โ11.6
โ
Longer interventions did not show statistically significant pooled effects, but this should not be interpreted as evidence that longer treatment is ineffective. The number of trials was small, and the evidence was imprecise.
๐๐๐บ๐ฏ๐ฎ๐ฟ ๐ฒ๐
๐๐ฒ๐ป๐๐ถ๐ผ๐ป- ๐ฒ๐
๐ฒ๐ฟ๐ฐ๐ถ๐๐ฒ๐
Lumbar extension exercises showed clearer benefits than general strength training:
โฌ๏ธ Pain: MD โ19.6, 95% CI โ25.4 to โ13.7
โฌ๏ธ Disability: MD โ12.5, 95% CI โ14.9 to โ10.1
โ
General strength training alone showed smaller and non-significant effects in the subgroup analyses
โฌ๏ธ Pain: MD โ8.0, 95% CI โ27.5 to 11.6
โฌ๏ธ Disability: MD โ3.2, 95% CI โ7.8 to 1.4
โ
This does not mean general strength training is ineffective, but the available evidence more strongly supports targeted lumbar extensor strengthening.
๐๐ผ๐ป๐ด-๐๐ฒ๐ฟ๐บ ๐ฒ๐ณ๐ณ๐ฒ๐ฐ๐๐
Long-term effects were not statistically significant:
โฌ๏ธ Pain: MD โ9.27, 95% CI โ22.83 to 4.27
โฌ๏ธ Disability: MD โ2.85, 95% CI โ7.13 to 1.43
โข
โ
Therefore, the evidence mainly supports short-term improvement, while sustained effects remain unclear.
๐ฃ๐ฟ๐ฎ๐ฐ๐๐ถ๐ฐ๐ฎ๐น ๐ถ๐ป๐๐ฒ๐ฟ๐ฝ๐ฟ๐ฒ๐๐ฎ๐๐ถ๐ผ๐ป ๐ก
For physiotherapists treating patients with chronic non-specific low back pain, the review supports the use of progressive strength training, especially programs that target the lumbar extensors and reach higher relative intensities when clinically tolerated. A clinically reasonable interpretation is that once-weekly, high-intensity lumbar extensor strengthening over a period of up to 12 weeks may reduce pain by roughly 19โ20 points on a 0โ100 scale and disability by roughly 12โ14 points on a 0โ100 scale. These are meaningful short-term changes, but they should be applied with clinical reasoning because the evidence certainty is low.