Table 4 Limitations to own studies given by authors of articles reviewed for the effect of SMT on pain
Limitations given by authors | |
|---|---|
[37] | Short term effect. Unable to project results on duration. |
Small sample of patients. | |
Did not include control group. | |
[42] | 4 different muscle situations assessed (rest, isotonic contraction and 2 isometric contractions) (Is it enough?) |
Duration (only immediate effect assessed). | |
Pop sound may have a placebo effect. | |
[23] | Healthy subjects. |
Unable to describe duration of effects. | |
[28] | Pain-free patients. |
Style, contacts or force used in the mobilization procedures. | |
[29] | Duration. Unable to project results on duration. |
Widespread to other areas? | |
Subthreshold pain stimulation, what about real pain? | |
Latent trigger points, subjects who may not be typical population. | |
Control group did not receive an intervention; maybe pop sound has a placebo effect. | |
[44] | Lack of control and placebo groups. |
Short term effect. Unable to project results on duration. | |
Did not take into account subject innate stiffness. | |
[38] | Short term effect. Unable to project results on duration. |
Placebo effect of cavitation. | |
Only women. | |
[30] | Algometer was not very precise. |
[43] | - |
[18] | Assessment not blind. |
Chronic low back pain. | |
Temporal summation as an indirect measure of central sensitization has been proven only in animals. | |
[19] | Short term effect. Unable to project results on duration. |
Possible placebo effect of cavitation. | |
Small sample of patients. | |
[39] | Short term effect. Unable to project results on duration. |
Not patients. | |
Possible placebo effect of cavitation. | |
PPT | |
[20] | Short term effect. Unable to project results on duration. |
Placebo effect of cavitation. | |
Healthy people, not patients. | |
[31] | Short term effect. Unable to project results on duration. |
Possible placebo effect of cavitation. | |
Healthy people, not patients. | |
[36] | Short term effect. Unable to project results on duration. |
Possible placebo effect of cavitation. | |
Healthy people, not patients. | |
No control, no sham group. | |
[40] | - |
[21] | - |
[32] | - |
[33] | - |
[41] | - |
[35] | - |
[34] | - |