The Claim
The minimal important difference for normalized trunk extensor torque (UBTR) is approximately 0.2, and values below 1.8 indicate clinically relevant deconditioning of the back muscles.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
A change of 0.2 in normalized trunk extensor torque is the smallest meaningful difference, and values below 1.8 are associated with measurable weakness in the back muscles.
See the scientific wording
The minimal important difference for normalized trunk extensor torque (UBTR) is approximately 0.2, suggesting that values below 1.8 may indicate clinically relevant deconditioning of the back muscles.
When back muscles lose strength, it is because the muscle fibers shrink and fewer nerve signals activate them during effort, causing the force they can produce to drop below the level needed for normal function.
What the research says
1 studyThe study found that healthy people, both men and women, have back strength about 2 times their upper body weight. If someone’s strength drops below 1.8 times their body weight, it’s likely weaker than normal and could mean their back muscles are deconditioned.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.