Acute Effects of Dry Needling on Myofascial Trigger Points in the Triceps Surae of Ballet Dancers: A Pilot Randomized Controlled Trial

# Background There is convincing evidence that dancers suffer injuries to the triceps surae musculature. Research on the immediate effects of dry needling (DN) is limited, and it is important to understand the acute effects of this treatment prior to performance. # Purpose The purpose of this pil...

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Main Authors: Jennifer A Janowski, Deanna M L Phelan-Smith, Maria N Kroat Brady, Kelsey L Michels, Alexandra H Timm, Nicole M Boucher, Kedron D Casteen, David Village, Mark D Sleeper
Format: Article
Language:English
Published: North American Sports Medicine Institute 2021-04-01
Series:International Journal of Sports Physical Therapy
Online Access:https://doi.org/10.26603/001c.21475
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author Jennifer A Janowski
Deanna M L Phelan-Smith
Maria N Kroat Brady
Kelsey L Michels
Alexandra H Timm
Nicole M Boucher
Kedron D Casteen
David Village
Mark D Sleeper
author_facet Jennifer A Janowski
Deanna M L Phelan-Smith
Maria N Kroat Brady
Kelsey L Michels
Alexandra H Timm
Nicole M Boucher
Kedron D Casteen
David Village
Mark D Sleeper
author_sort Jennifer A Janowski
collection DOAJ
description # Background There is convincing evidence that dancers suffer injuries to the triceps surae musculature. Research on the immediate effects of dry needling (DN) is limited, and it is important to understand the acute effects of this treatment prior to performance. # Purpose The purpose of this pilot study was to assess the immediate effects of DN on myofascial trigger points in terms of skin surface temperature, pain, active and passive range of motion, and torque production in the triceps surae of ballet dancers. # Study Design Randomized, double-blinded pilot study # Methods Professional ballet dancers that fit inclusion and exclusion criteria (n=11) were randomly assigned to an experimental or control group. The dancers had three pre-determined standard point (SP) measurement spots that were used as a baseline for surface temperature comparisons. The dancers were also palpated for trigger point (TP) spots. Both SP and TP spots were marked for future measurements. The experimental group received DN, while the control group received sham DN (SHAM) to their bilateral calves at the TP spots. Immediately prior to and following treatment, both DN and SHAM groups were tested for skin surface temperature, pain, range of motion, and plantar flexion torque by blinded assessors. Paired t-tests and independent t-tests were performed to examine for differences between groups. # Results The surface temperature for the TP was higher than the SP measurements prior to intervention (Right calf p= .014; Left calf p= .031). There were no significant changes in VAS scale reported pain and ROM. The plantar flexion torque measurements showed an increase in the DN group of the left calf at the angular velocity of 60 degrees/sec. # Conclusion This was a unique pilot study examining the acute effects of DN on professional ballet dancers. The results were limited due to low sample size. However, the methodology for this study and surface temperature results invites future research. # Level of evidence Level 1b
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institution Kabale University
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series International Journal of Sports Physical Therapy
spelling doaj-art-cd10041b96ad4233a112b787190127cd2025-02-11T20:28:27ZengNorth American Sports Medicine InstituteInternational Journal of Sports Physical Therapy2159-28962021-04-01162Acute Effects of Dry Needling on Myofascial Trigger Points in the Triceps Surae of Ballet Dancers: A Pilot Randomized Controlled TrialJennifer A JanowskiDeanna M L Phelan-SmithMaria N Kroat BradyKelsey L MichelsAlexandra H TimmNicole M BoucherKedron D CasteenDavid VillageMark D Sleeper# Background There is convincing evidence that dancers suffer injuries to the triceps surae musculature. Research on the immediate effects of dry needling (DN) is limited, and it is important to understand the acute effects of this treatment prior to performance. # Purpose The purpose of this pilot study was to assess the immediate effects of DN on myofascial trigger points in terms of skin surface temperature, pain, active and passive range of motion, and torque production in the triceps surae of ballet dancers. # Study Design Randomized, double-blinded pilot study # Methods Professional ballet dancers that fit inclusion and exclusion criteria (n=11) were randomly assigned to an experimental or control group. The dancers had three pre-determined standard point (SP) measurement spots that were used as a baseline for surface temperature comparisons. The dancers were also palpated for trigger point (TP) spots. Both SP and TP spots were marked for future measurements. The experimental group received DN, while the control group received sham DN (SHAM) to their bilateral calves at the TP spots. Immediately prior to and following treatment, both DN and SHAM groups were tested for skin surface temperature, pain, range of motion, and plantar flexion torque by blinded assessors. Paired t-tests and independent t-tests were performed to examine for differences between groups. # Results The surface temperature for the TP was higher than the SP measurements prior to intervention (Right calf p= .014; Left calf p= .031). There were no significant changes in VAS scale reported pain and ROM. The plantar flexion torque measurements showed an increase in the DN group of the left calf at the angular velocity of 60 degrees/sec. # Conclusion This was a unique pilot study examining the acute effects of DN on professional ballet dancers. The results were limited due to low sample size. However, the methodology for this study and surface temperature results invites future research. # Level of evidence Level 1bhttps://doi.org/10.26603/001c.21475
spellingShingle Jennifer A Janowski
Deanna M L Phelan-Smith
Maria N Kroat Brady
Kelsey L Michels
Alexandra H Timm
Nicole M Boucher
Kedron D Casteen
David Village
Mark D Sleeper
Acute Effects of Dry Needling on Myofascial Trigger Points in the Triceps Surae of Ballet Dancers: A Pilot Randomized Controlled Trial
International Journal of Sports Physical Therapy
title Acute Effects of Dry Needling on Myofascial Trigger Points in the Triceps Surae of Ballet Dancers: A Pilot Randomized Controlled Trial
title_full Acute Effects of Dry Needling on Myofascial Trigger Points in the Triceps Surae of Ballet Dancers: A Pilot Randomized Controlled Trial
title_fullStr Acute Effects of Dry Needling on Myofascial Trigger Points in the Triceps Surae of Ballet Dancers: A Pilot Randomized Controlled Trial
title_full_unstemmed Acute Effects of Dry Needling on Myofascial Trigger Points in the Triceps Surae of Ballet Dancers: A Pilot Randomized Controlled Trial
title_short Acute Effects of Dry Needling on Myofascial Trigger Points in the Triceps Surae of Ballet Dancers: A Pilot Randomized Controlled Trial
title_sort acute effects of dry needling on myofascial trigger points in the triceps surae of ballet dancers a pilot randomized controlled trial
url https://doi.org/10.26603/001c.21475
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