Effects of high-velocity, low-amplitude manipulation on catalase activity in men with neck pain.
OBJECTIVE
The aim of this study was to identify the influence of high-velocity, low-amplitude (HVLA) manipulation on lipid peroxidation and catalase activity in subjects with neck pain who answered the Neck Disability Index and quadruple visual scale questionnaires.


METHODS
Twenty-two men (mean age, 38 years) with neck pain were recruited through radio and newspaper advertisements in the local media. Every patient received 6 sessions of HVLA manipulation, 3 times a week for 2 weeks. Blood samples were drawn from the cubital vein before treatment in the first session and after the third and sixth sessions. The quadruple visual scale was used with the same scheme. The Neck Disability Index questionnaire was applied before the beginning of treatment and after the last session. Catalase activity and lipoperoxidation were measured in erythrocyte samples.


RESULTS
Results showed no change in lipid peroxidation. Nevertheless, the catalase activity was increased by HVLA manipulation. The same treatment reduced pain perception and disability in these subjects.


CONCLUSIONS
The present study has shown that catalase activity of the erythrocytes, but not lipoperoxidation, increased after 6 sessions of HVLA manipulation treatment in men with neck pain. The results support the beneficial role of HVLA in the treatment of patients with neck pain.
Department of Physiology, Instituto de Ciências Básicas da Saúde, UFRGS, Porto Alegre, RS, Brasil. carolina.dc@clinicakolberg.com.br
Carolina
C
Kolberg
Andrea
A
Horst
Angela
A
Kolberg
Adriane
A
Belló-Klein
Wania A
WA
Partata
D000328:Adult; D002374:Catalase / Q000378:metabolism*; D004912:Erythrocytes / Q000201:enzymology*; D006801:Humans; D015227:Lipid Peroxidation; D008297:Male; D020393:Manipulation, Spinal / Q000379:methods*; D008875:Middle Aged; D019547:Neck Pain / Q000097:blood* / Q000201:enzymology / Q000628:therapy*; D010147:Pain Measurement; D058748:Pain Perception; D016059:Range of Motion, Articular; D016896:Treatment Outcome
D002374:Catalase