From: The regional effect of spinal manipulation on the pressure pain threshold in asymptomatic subjects: a systematic literature review
Regions
First Author, Year [ref]
General quality classification of articles
Significant difference of outcomes between groups (Yes/No)
Cervical
Alonso Peres, 2016 [22]
High
No between groups results
Thoracic
Fryer, 2004 [21]
Medium
No
Lumbar
Thompson, 2009 [13]