8; this was not statistically significant (95% CI −0.1 to 3.6), as presented in Figure 4. A more detailed forest plot is presented in Figure 5, which is available in the eAddenda. Data were pooled from two trials comparing the use of acupressure with control.24 and 26 Both trials measured pain intensity on the VAS. The trials provided were methodologically low quality, providing low-grade evidence. The Dinaciclib manufacturer pooled analysis showed a significant benefit of acupressure compared to no treatment, with a weighted mean difference of 1.4 (95% CI 0.8 to 1.9), as presented in Figure 6. A more detailed forest plot is presented in Figure 7, which is available in the eAddenda. Two trials compared the effects of acupressure with sham acupressure
as a control.22 and 27 The trials were methodologically low quality, providing low-grade evidence. The study showed no statistical significance between the groups, with a weighted mean difference of 1.9 (95% CI −0.4 to 4.2), as presented in Figure 8. A more detailed forest plot is presented in Figure 9, which is available in the eAddenda. Note that the trial by Mirbagher-Ajorpaz
et al22 assessed pain intensity up to 3 hours after treatment and effects were increasingly better, with peak effect reached at 3 hours after treatment. Two trials compared the effect of spinal manipulation with sham manipulation as a control.20 and 21 The trials were methodologically low quality, providing low-grade evidence. The pooled analysis showed a non-significant benefit of manipulation, see more with a weighted mean difference of 0.6 (95% −0.4 to 1.7), as presented in Figure 10. A more detailed forest plot is presented in Figure 11, which is available in the eAddenda. One trial compared the effect of a heat pad with a sham (unheated) pad.19 The trial showed a significant benefit from heat compared to placebo,
with a mean difference of 1.8 (95% CI 0.9 to 2.7). One trial compared the analgesic effect of TENS with a placebo pill.2 The trial showed a significant effect of TENS compared to placebo pill immediately after treatment, with a mean difference of 2.3 (95% CI 0.03 to 4.6). One trial compared the analgesic effect of yoga with no treatment control.25 Note that the data collected using Tryptophan synthase a 0–3 scale are converted to a 0–10 scale here. The study showed a significant effect of yoga compared to control at 1 month following treatment, with a mean difference of 3.2 (95% CI 2.2 to 4.2). This systematic review identified statistically significant reductions in pain severity due to several physiotherapy interventions. It is important to interpret the result for each physiotherapy intervention carefully, considering the extent and quality of the evidence obtained, the details of the interventions provided, the estimates of the mean effect on pain obtained derived from the data, and whether the confidence intervals around those estimates include clinically trivial or clinically worthwhile effects.