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Effects of Spray and Stretch On Postneedling Soreness And Sensitivity After Dry Needling Of A Latent Myofascial Trigger Point.

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Effects of Spray and Stretch On Postneedling Soreness And Sensitivity After Dry Needling Of A Latent Myofascial Trigger Point.

Arch Phys Med Rehabil. 2014 Jun 10;

Authors: Martín-Pintado-Zugasti A, Rodríguez-Fernández AL, García-Muro F, López-López A, Mayoral O, Mesa-Jiménez JA, Fernández-Carnero J

OBJECTIVE: To investigate (1) the effect of spray and stretch (SS) versus control on reducing post-needling soreness of one latent myofascial trigger point (MTrP) and (2) if higher levels of psychological distress are associated with increased post-needling pain intensity.
DESIGN: A 72-hour follow-up, single-blind randomized controlled trial.
SETTING: University community.
PARTICIPANTS: Healthy volunteers (N=70:40 men,30 women) aged 18 to 36 years (mean±SD, 21±4y) with latent MTrP in one upper trapezius muscle.
INTERVENTION: All subjects received a dry needling application over the upper trapezius muscle. Then, participants were randomly divided into two groups: an intervention group, which received SS over the needled trapezius muscle, and a control group that did not receive any intervention.
MAIN OUTCOME MEASURES: Visual analog scale (VAS; at post-needling, post-treatment, 6, 12, 24, 48 and 72 hours), pressure pain threshold (PPT; at pre-needling, post-needling, 24 and 48 hours). Psychological distress was evaluated by the Symptom Checklist-90-Revised.
RESULTS: Repeated measures analysis of variance (ANOVA) demonstrated a significant interaction between group and time (F3,204.8=3.19, P.05). Repeated measures of covariance (ANCOVA) showed that none of the psychological covariates affected these results. Somatization, anxiety, interpersonal sensitivity and hostility were significantly correlated (P<.05) with post-needling pain intensity. Repeated measures ANOVA did not show a significant effect of SS on mechanical hiperalgesia (F2.6,175=1.9, P=.131, ηp(2)=0.02).
CONCLUSIONS: The SS had a short-term (less than 6 hours) effect reducing post-needling soreness of a latent MTrP. PPT did not significantly change after SS. Psychological factors are related to post-needling pain.

PMID: 24928191 [PubMed – as supplied by publisher]


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