Q2. What are the future works mentioned in the paper "Low back pain and postural sway during quiet standing with and without sensory manipulation: a systematic review" ?
Therefore, dualtasking can be used in future studies on balance performance in LBP. Further analysis of postural sway by nonlinear methods might reveal differential responses of LBP and healthy people to sensory and cognitive manipulations more consistently.
Q3. What is the effect of pain on postural sway?
In addition, nociceptive afference has negative effects on proprioceptive feedback from muscle spindle afferents [53], which may also contribute to increased postural sway.
Q4. What is the effect of fear of movement on postural sway?
pain-related fear of movement might reduce postural sway through a more rigid postural control strategy, i.e. through an increase in co-contraction levels and/or feedback gains [55], as an effect of arousal.
Q5. What is the common factor causing activity limitation in people under the age of 45?
Recurrent LBP may interfere with different aspects of peoples’ lives and LBP is the most common factor causing activity limitation in people below the age of 45 [2]
Q6. What is the reason for increased sway in LBP?
A decrease in force steadiness has been shown to occur with experimentally induced back pain [50] as well as in clinical low back pain [51,52], and might be a cause of increased sway.
Q7. What is the simplest way to limit postural sway?
Limiting postural sway requires adequate trunk control, since any rotation around the ankle joints will induce variation in gravitational moments around the spine that have to be controlled by trunk musculature to maintain trunk alignment.
Q8. How long does it take to recover from a LBP?
Episodic LBP 18 months with at least one episode per year Minimal or no pain with no medication at the time of testing Insidious LBP leading to functional limitation and seeking medical or allied health treatment
Q9. How many studies found a larger sway in LBP?
For instance, when no manipulations were applied, 12 studies found a larger sway in LBP, 9 studies found no effect and 3 studies found reduced sway in LBP.
Q10. What is the effect of LBP on postural sway in those studies that obtained no?
The effect of LBP on postural sway in those studies that obtained no between-group differences may be missed due to a lack of statistical power.
Q11. Why does this comparison seem more informative?
Due to the complex relationship of LBP and postural balance, this extensive comparison seems more informative, but more importantly it avoids type 1 errors due to multiple testing in the original studies.