Hello and welcome to this week’s edition of HealthBeat, Chiropractic OnLine Today’s Health, News and Informational Podcast.
In this week’s news: We’ll Be Looking At –
- Spinal manipulation on nitric oxide substance P and pain perception
- And Finally, a Story About Multifidus Muscle Size and Chronic LBP
For HealthBeat, This is Dr. Todd Eglow!
Welcome to HealthBeat Podcast #481 recorded October 17, 2014.
HealthBeat is Chiropractic OnLine Today’s radio program, providing current news and commentary about Chiropractic and Health.
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Spinal manipulation on nitric oxide substance P and pain perception
Previous studies have analyzed the effects of spinal manipulation on pain sensitivity by using several sensory modalities, but no studies have focused on serum biomarkers involved in the nociceptive pathway after spinal manipulation.
The objectives of a recent study published in the journal Manual Therapy, were to determine the immediate effect of cervical and dorsal manipulation over the production of nitric oxide and substance P, and establishing their relationship with changes in pressure pain thresholds in asymptomatic subjects.
No changes in nitric oxide production were observed.
In conclusion, mechanical stimulus provided by cervical manipulation increases substance P levels and pressure pain threshold but does not change nitric oxide concentrations.
Part of the hypoalgesic effect of spinal manipulation may be due to the action of substance P.
Surf to our Show Notes for Links – http://www.manualtherapyjournal.com/article/S1356-689X%2814%2900029-0/abstract
Multifidus Muscle Size and Chronic LBP
The aim of a recent study published in the journal Manual Therapy, was to determine if differences exist in lumbar multifidus (LM) thickness at rest and during activation, between individuals with chronic low back pain (CLBP) and controls.
Lumbar multifidus thickness was assessed via rehabilitative ultrasound imaging (RUSI), and was performed in prone and standing both at rest and during muscle activation i.e. with a contralateral arm lift (CAL).
There was a significant difference in lumbar multifidus percentage thickness change in standing during activation with a contralateral arm lift; the chronic low back pain demonstrated a greater percentage thickness increase at L5/S1 compared to the controls.
There were no differences between groups at the L4/L5 level for this position. There were no differences between the groups for lumbar multifidus thickness or percentage thickness change in prone or standing at rest, or during activation with a contralateral arm lift in prone.
Within the chronic low back pain group, no significant between side differences were found.
These results give preliminary insight into possible differences in lumbar multifidus contractile behaviour during functional movements in chronic low back pain, however, larger scale research is warranted.
Surf to our Show Notes for Links – http://www.manualtherapyjournal.com/article/S1356-689X%2814%2900070-8/abstract
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For Chiropractic OnLine Today’s HealthBeat, This has been Dr. Todd Eglow.