Feedback Leads to Better Exercise Quality in Adolescents with Patellofemoral Pain

Riel, Henrik, Matthews, Mark, Vicenzino, Bill, Bandholm, Thomas, Thorborg, Kristian and Rathleff, Michael Skovdal (2018) Feedback Leads to Better Exercise Quality in Adolescents with Patellofemoral Pain. Medicine and Science in Sports and Exercise, 50 1: 28-35. doi:10.1249/MSS.0000000000001412

Author Riel, Henrik
Matthews, Mark
Vicenzino, Bill
Bandholm, Thomas
Thorborg, Kristian
Rathleff, Michael Skovdal
Title Feedback Leads to Better Exercise Quality in Adolescents with Patellofemoral Pain
Journal name Medicine and Science in Sports and Exercise   Check publisher's open access policy
ISSN 1530-0315
Publication date 2018-01-01
Year available 2018
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1249/MSS.0000000000001412
Open Access Status Not yet assessed
Volume 50
Issue 1
Start page 28
End page 35
Total pages 8
Place of publication Philadelphia, United States
Publisher Lippincott Williams and Wilkins
Language eng
Subject 2732 Orthopedics and Sports Medicine
3612 Physical Therapy, Sports Therapy and Rehabilitation
Abstract Purpose: Adolescents with patellofemoral pain (PFP) do not comply with their exercise prescription, performing too few and too fast repetitions, compromising recovery. We investigated if real-time feedback on contraction time would improve the ability of adolescents with PFP to perform exercises as prescribed. Methods: A randomized, controlled, participant-blinded, superiority trial with a 6-wk intervention of three weekly sessions of three elastic band exercises was undertaken. Forty 15- to 19-yr-old adolescents with PFP were randomized to real-time BandCizeri-iPad feedback on contraction time or not by a physiotherapist. The primary outcome was the mean deviation from the prescribed contraction time of 8 s per repetition. Secondary outcomes included isometric hip and knee strength, Kujala Patellofemoral Scale, and Global Rating of Change. Results: The mean deviation from prescribed 8 s per repetition contraction time was 1.5 T 0.5 s for the feedback group, compared with 4.3 T 1.0 s for the control group (mean difference: 2.7 s (95% confidence interval = 2.2-3.2, P G 0.001). On the basis of total contraction time during the intervention, the feedback group received 35.4% of the prescribed exercise dose whereas the control group received 20.3%. Isometric hip and knee strength increased significantly more in the feedback group compared with controls (mean difference = 1.35 NIkgj1, 95% confidence interval = 0.02-2.68, P = 0.047). There were no significant differences in Kujala Patellofemoral Scale and Global Rating of Change between groups, but the study was not powered for this. Conclusion: Realtime feedback on contraction time resulted in the ability to perform exercises closer to the prescribed dose and also induced larger strength gains.
Keyword BandCizer™
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: HERDC Pre-Audit
School of Health and Rehabilitation Sciences Publications
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Created: Sun, 24 Dec 2017, 10:24:41 EST