Acute Effects of Percussive Therapy on the Posterior Shoulder Muscles Differ Based on the Athlete’s Soreness Response
# Background Percussive therapy is hypothesized to speed recovery by delivering gentle, rhythmic pulses to soft tissue. However, patients often present with a differential soreness response after percussive therapy, which may lead to altered clinical outcomes. # Purpose To compare the acute effec...
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| Format: | Article |
| Language: | English |
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North American Sports Medicine Institute
2022-08-01
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| Series: | International Journal of Sports Physical Therapy |
| Online Access: | https://doi.org/10.26603/001c.37254 |
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| _version_ | 1825197011500007424 |
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| author | Jack H Trainer Matthew Pascarella Ryan W Paul Stephen J Thomas |
| author_facet | Jack H Trainer Matthew Pascarella Ryan W Paul Stephen J Thomas |
| author_sort | Jack H Trainer |
| collection | DOAJ |
| description | # Background
Percussive therapy is hypothesized to speed recovery by delivering gentle, rhythmic pulses to soft tissue. However, patients often present with a differential soreness response after percussive therapy, which may lead to altered clinical outcomes.
# Purpose
To compare the acute effects of percussion therapy on passive range of motion (ROM) and tissue-specific ultrasound measures (pennation angle \[PA\] and muscle thickness \[MT\]) between healthy individuals responding positively vs. negatively to percussive therapy performed on the dominant arm posterior rotator cuff.
# Study Design
Cross-sectional laboratory study
# Methods
Fifty-five healthy individuals were assessed on a subjective soreness scale before and after a five-minute percussive therapy session on the dominant arm posterior rotator cuff muscles. Participants with no change or a decrease in muscle soreness were assigned to the positive response group and participants who reported an increase in muscle soreness were assigned to the negative response group. Passive internal rotation (IR) and external rotation (ER) ROM and strength, and muscle architecture of the infraspinatus and teres minor were measured via ultrasound on the dominant shoulder. All dependent variables were collected before percussive therapy, and 20 minutes following percussive therapy.
# Results
The positive response group had greater improvements than the negative response group in dominant arm IR ROM (2.3° positive vs. -1.3° negative, p=0.021) and IR strength (1.1 lbs vs. -1.2 lbs, p=0.011) after percussive therapy. No differences in ER strength or ROM were observed between groups. Regarding muscle architecture, the positive group had a lesser change in teres minor MT (0.00 mm vs. 0.11 mm, p=0.019) after percussive therapy. All other muscle architecture changes were not statistically different between groups.
# Conclusion
Participants with a positive response to percussive therapy had increased dominant arm IR ROM and IR strength, and decreased teres minor MT, after percussive therapy compared to the negative response participants.
# Level of Evidence
III |
| format | Article |
| id | doaj-art-5df547673bf34885a807009943d89246 |
| institution | Kabale University |
| issn | 2159-2896 |
| language | English |
| publishDate | 2022-08-01 |
| publisher | North American Sports Medicine Institute |
| record_format | Article |
| series | International Journal of Sports Physical Therapy |
| spelling | doaj-art-5df547673bf34885a807009943d892462025-02-11T20:27:34ZengNorth American Sports Medicine InstituteInternational Journal of Sports Physical Therapy2159-28962022-08-01175Acute Effects of Percussive Therapy on the Posterior Shoulder Muscles Differ Based on the Athlete’s Soreness ResponseJack H TrainerMatthew PascarellaRyan W PaulStephen J Thomas# Background Percussive therapy is hypothesized to speed recovery by delivering gentle, rhythmic pulses to soft tissue. However, patients often present with a differential soreness response after percussive therapy, which may lead to altered clinical outcomes. # Purpose To compare the acute effects of percussion therapy on passive range of motion (ROM) and tissue-specific ultrasound measures (pennation angle \[PA\] and muscle thickness \[MT\]) between healthy individuals responding positively vs. negatively to percussive therapy performed on the dominant arm posterior rotator cuff. # Study Design Cross-sectional laboratory study # Methods Fifty-five healthy individuals were assessed on a subjective soreness scale before and after a five-minute percussive therapy session on the dominant arm posterior rotator cuff muscles. Participants with no change or a decrease in muscle soreness were assigned to the positive response group and participants who reported an increase in muscle soreness were assigned to the negative response group. Passive internal rotation (IR) and external rotation (ER) ROM and strength, and muscle architecture of the infraspinatus and teres minor were measured via ultrasound on the dominant shoulder. All dependent variables were collected before percussive therapy, and 20 minutes following percussive therapy. # Results The positive response group had greater improvements than the negative response group in dominant arm IR ROM (2.3° positive vs. -1.3° negative, p=0.021) and IR strength (1.1 lbs vs. -1.2 lbs, p=0.011) after percussive therapy. No differences in ER strength or ROM were observed between groups. Regarding muscle architecture, the positive group had a lesser change in teres minor MT (0.00 mm vs. 0.11 mm, p=0.019) after percussive therapy. All other muscle architecture changes were not statistically different between groups. # Conclusion Participants with a positive response to percussive therapy had increased dominant arm IR ROM and IR strength, and decreased teres minor MT, after percussive therapy compared to the negative response participants. # Level of Evidence IIIhttps://doi.org/10.26603/001c.37254 |
| spellingShingle | Jack H Trainer Matthew Pascarella Ryan W Paul Stephen J Thomas Acute Effects of Percussive Therapy on the Posterior Shoulder Muscles Differ Based on the Athlete’s Soreness Response International Journal of Sports Physical Therapy |
| title | Acute Effects of Percussive Therapy on the Posterior Shoulder Muscles Differ Based on the Athlete’s Soreness Response |
| title_full | Acute Effects of Percussive Therapy on the Posterior Shoulder Muscles Differ Based on the Athlete’s Soreness Response |
| title_fullStr | Acute Effects of Percussive Therapy on the Posterior Shoulder Muscles Differ Based on the Athlete’s Soreness Response |
| title_full_unstemmed | Acute Effects of Percussive Therapy on the Posterior Shoulder Muscles Differ Based on the Athlete’s Soreness Response |
| title_short | Acute Effects of Percussive Therapy on the Posterior Shoulder Muscles Differ Based on the Athlete’s Soreness Response |
| title_sort | acute effects of percussive therapy on the posterior shoulder muscles differ based on the athlete s soreness response |
| url | https://doi.org/10.26603/001c.37254 |
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