Effect of generalized joint hypermobility on knee function and muscle activation in children and adults
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Effect of generalized joint hypermobility on knee function and muscle activation in children and adults. / Jensen, Bente Rona; Olesen, Annesofie T.; Pedersen, Mogens Theisen; Kristensen, Jens Halkjær; Remvig, Lars; Simonsen, Erik Bruun; Juul-Kristensen, Birgit.
I: Muscle & Nerve, Bind 48, Nr. 5, 2013, s. 762-769.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Effect of generalized joint hypermobility on knee function and muscle activation in children and adults
AU - Jensen, Bente Rona
AU - Olesen, Annesofie T.
AU - Pedersen, Mogens Theisen
AU - Kristensen, Jens Halkjær
AU - Remvig, Lars
AU - Simonsen, Erik Bruun
AU - Juul-Kristensen, Birgit
N1 - CURIS 2013 NEXS 239
PY - 2013
Y1 - 2013
N2 - Introduction: We investigated muscle activation strategy and performance of knee extensor and flexor muscles in children and adults with generalized joint hypermobility (GJH) and compared them with controls. Methods: Muscle activation, torque steadiness, electromechanical delay, and muscle strength were evaluated in 39 children and 36 adults during isometric knee extension and flexion. Subjects performed isometric maximum contractions, submaximal contractions at 25% maximum voluntary contraction (MVC), and explosive contractions. Results: Agonist activation was reduced, and coactivation ratio was greater in GJH during knee flexion compared with controls. Torque steadiness was impaired in adults with GJH during knee flexion. No effect of GJH was found on muscle strength or electromechanical delay. Correlation analysis revealed an association between GJH severity and function in adults. Conclusions: The results indicate that muscle activation strategy and quality of force control were significantly affected in adults with GJH during knee flexion, whereas only muscle activation strategy was affected in children with GJH. Muscle Nerve, 2013.
AB - Introduction: We investigated muscle activation strategy and performance of knee extensor and flexor muscles in children and adults with generalized joint hypermobility (GJH) and compared them with controls. Methods: Muscle activation, torque steadiness, electromechanical delay, and muscle strength were evaluated in 39 children and 36 adults during isometric knee extension and flexion. Subjects performed isometric maximum contractions, submaximal contractions at 25% maximum voluntary contraction (MVC), and explosive contractions. Results: Agonist activation was reduced, and coactivation ratio was greater in GJH during knee flexion compared with controls. Torque steadiness was impaired in adults with GJH during knee flexion. No effect of GJH was found on muscle strength or electromechanical delay. Correlation analysis revealed an association between GJH severity and function in adults. Conclusions: The results indicate that muscle activation strategy and quality of force control were significantly affected in adults with GJH during knee flexion, whereas only muscle activation strategy was affected in children with GJH. Muscle Nerve, 2013.
U2 - 10.1002/mus.23802
DO - 10.1002/mus.23802
M3 - Journal article
C2 - 24037762
VL - 48
SP - 762
EP - 769
JO - Muscle & Nerve
JF - Muscle & Nerve
SN - 0148-639X
IS - 5
ER -
ID: 50864289