Muscle Contractures in Adults With Cerebral Palsy Characterized by Combined Ultrasound-Derived Echo Intensity and Handheld Dynamometry Measures
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Muscle Contractures in Adults With Cerebral Palsy Characterized by Combined Ultrasound-Derived Echo Intensity and Handheld Dynamometry Measures. / Svane, Christian; Forman, Christian Riis; Rasul, Aqella; Nielsen, Jens Bo; Lorentzen, Jakob.
In: Ultrasound in Medicine and Biology, Vol. 48, No. 4, 2022, p. 694-701.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Muscle Contractures in Adults With Cerebral Palsy Characterized by Combined Ultrasound-Derived Echo Intensity and Handheld Dynamometry Measures
AU - Svane, Christian
AU - Forman, Christian Riis
AU - Rasul, Aqella
AU - Nielsen, Jens Bo
AU - Lorentzen, Jakob
N1 - Publisher Copyright: © 2021 The Authors
PY - 2022
Y1 - 2022
N2 - We used ultrasound-derived echo intensity and hand-held dynamometry to characterize plantar flexor muscle contractures in adults with cerebral palsy (CP). Eleven adults with CP (aged 41 ± 12 y, Gross Motor Function Classification System I–II) and 11 neurologically intact adults (aged 35 ± 10 y) participated in the study. Echo intensity was measured from the medial gastrocnemius muscle using brightness mode ultrasound. Hand-held dynamometry was used to quantify plantar flexor passive muscle stiffness and ankle joint passive range of motion (pROM). Echo intensity correlated with both passive muscle stiffness (r = 0.57, p = 0.006) and pROM (r = –0.56, p = 0.006). Ultrasound echo intensity (p = 0.02, standardized mean difference [SMD] = 1.13) and passive muscle stiffness (p < 0.001, SMD = 1.99) were higher and ankle joint pROM (p < 0.001, SMD = 2.69) was lower in adults with CP than in neurologically intact adults. We conclude that combined ultrasound-derived echo intensity and hand-held dynamometry may be used to provide an objective characterization of muscle contractures.
AB - We used ultrasound-derived echo intensity and hand-held dynamometry to characterize plantar flexor muscle contractures in adults with cerebral palsy (CP). Eleven adults with CP (aged 41 ± 12 y, Gross Motor Function Classification System I–II) and 11 neurologically intact adults (aged 35 ± 10 y) participated in the study. Echo intensity was measured from the medial gastrocnemius muscle using brightness mode ultrasound. Hand-held dynamometry was used to quantify plantar flexor passive muscle stiffness and ankle joint passive range of motion (pROM). Echo intensity correlated with both passive muscle stiffness (r = 0.57, p = 0.006) and pROM (r = –0.56, p = 0.006). Ultrasound echo intensity (p = 0.02, standardized mean difference [SMD] = 1.13) and passive muscle stiffness (p < 0.001, SMD = 1.99) were higher and ankle joint pROM (p < 0.001, SMD = 2.69) was lower in adults with CP than in neurologically intact adults. We conclude that combined ultrasound-derived echo intensity and hand-held dynamometry may be used to provide an objective characterization of muscle contractures.
KW - Cerebral palsy
KW - Contracture
KW - Echo intensity
KW - Grayscale
KW - Intramuscular fat
KW - Muscle composition
KW - Muscle stiffness
KW - Range of motion
KW - Ultrasound
U2 - 10.1016/j.ultrasmedbio.2021.12.012
DO - 10.1016/j.ultrasmedbio.2021.12.012
M3 - Journal article
C2 - 35065812
AN - SCOPUS:85123090112
VL - 48
SP - 694
EP - 701
JO - Ultrasound in Medicine & Biology
JF - Ultrasound in Medicine & Biology
SN - 0301-5629
IS - 4
ER -
ID: 291010103