Girls with generalized joint hypermobility display changed muscle activity and postural sway during static balance tasks

Juul-Kristensen, Birgit; Johansen, Kl; Hendriksen, Peter Fjeldstad; Melcher, Pia Sandfeld; Sandfeld, Jesper; Jensen, BR

doi:10.3109/03009742.2015.1041154

Cited by 20 publications

(30 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…23 The increased sway, especially with the eyes closed, may reflect altered proprioception in those with GJH, consistent with results from symptomatic individuals with GJH.…”

supporting

confidence: 68%

Hypermobility in Adolescent Athletes: Pain, Functional Ability, Quality of Life, and Musculoskeletal Injuries

Schmidt¹,

Pedersen²,

Junge

et al. 2017

J Orthop Sports Phys Ther

View full text Add to dashboard Cite

U t STUDY DESIGN:Cross-sectional. U t BACKGROUND:Generalized joint hypermobility (GJH) may increase pain and likelihood of injuries and also decrease function and health-related quality of life (HRQoL) in elite-level adolescent athletes. U t OBJECTIVE:To assess the prevalence of GJH in elite-level adolescent athletes, and to study the association of GJH with pain, function, HRQoL, and musculoskeletal injuries. U t METHODS:A total of 132 elite-level adolescent athletes (36 adolescent boys, 96 adolescent girls; mean ± SD age, 14.0 ± 0.9 years), including ballet dancers (n = 22), TeamGym gymnasts (n = 57), and team handball players (n = 53), participated in the study. Generalized joint hypermobility was classified by Beighton score as GJH4 (4/9 or greater), GJH5 (5/9 or greater), and GJH6 (6/9 or greater). Function of the lower extremity, musculoskeletal injuries, and HRQoL were assessed with self-reported questionnaires, and part of physical performance was assessed by 4 postural-sway tests and 2 single-legged hop-for-distance tests. U t RESULTS:Overall prevalence rates for GJH4, GJH5, and GJH6 were 27.3%, 15.9%, and 6.8%,

show abstract

“…23 The increased sway, especially with the eyes closed, may reflect altered proprioception in those with GJH, consistent with results from symptomatic individuals with GJH.…”

supporting

confidence: 68%

Hypermobility in Adolescent Athletes: Pain, Functional Ability, Quality of Life, and Musculoskeletal Injuries

Schmidt¹,

Pedersen²,

Junge

et al. 2017

J Orthop Sports Phys Ther

View full text Add to dashboard Cite

show abstract

“…Co-activation ratio is used when agonist and antagonist can be clearly defined over time in a specific task, while CCI can be used even though it is not possible to clearly define which muscles over time are agonist and antagonist muscles, as in the current task (single leg hop for distance) (Rudolph et al, 2001). Using the present calculation for CCI is feasible, since it gives the opportunity to compare the results with previous studies of similar populations where the same method of calculating CCI has been used (Greenwood et al, 2011a,b;Juul-Kristensen et al, 2014).…”

Section: Discussionmentioning

confidence: 82%

Altered knee joint neuromuscular control during landing from a jump in 10–15year old children with Generalised Joint Hypermobility. A substudy of the CHAMPS-study Denmark

Junge

Wedderkopp

Thorlund

et al. 2015

Journal of Electromyography and Kinesiology

View full text Add to dashboard Cite

Generalised Joint Hypermobility (GJH) is considered an intrinsic risk factor for knee injuries. Knee neuromuscular control during landing may be altered in GJH due to reduced passive stability. The aim was to identify differences in knee neuromuscular control during landing of the Single-Leg-Hop-for-Distance test (SLHD) in 25 children with GJH compared to 29 children without GJH (controls), all 10-15years. Inclusion criteria for GJH: Beighton score⩾5/9 and minimum one hypermobile knee. EMG was recorded from the quadriceps, the hamstring and the calf muscles, presented relative to Maximum Voluntary Electrical activity (MVE). There was no difference in jump length between groups. Before landing, GJH had 33% lower Semitendinosus, but 32% higher Gastrocnemius Medialis activity and 39% higher co contraction of the lateral knee muscles, than controls. After landing, GJH had 36% lower Semitendinosus activity than controls, all significant findings. Although the groups performed equally in SLHD, GJH had a Gastrocnemius Medialis dominated neuromuscular strategy before landing, plausibly caused by reduced Semitendinosus activity. Reduced Semitendinosus activity was seen in GJH after landing, but with no compensatory Gastrocnemius Medialis activity. Reduced pre and post-activation of the Semitendinosus may present a risk factor for traumatic knee injuries as ACL ruptures in GJH with knee hypermobility.

show abstract

“…In laboratory studies, adults with GJH including KJH report more knee‐related pain and lower knee‐related quality of life than adults without GJH . Also, individuals with GJH and KJH have shown altered neuromuscular strategies during daily functions that involve the knee, for example, gait and jumping . Malalignment of the knee joint due to reduced passive stability may affect knee joint load distribution adversely and consequently lead to knee joint pain, reduced activities of daily living and HRQoL.…”

Section: Introductionmentioning

confidence: 99%

Generalised joint hypermobility and knee joint hypermobility: prevalence, knee joint symptoms and health‐related quality of life in a Danish adult population

et al. 2017

View full text Add to dashboard Cite

show abstract

Girls with generalized joint hypermobility display changed muscle activity and postural sway during static balance tasks

Cited by 20 publications

References 40 publications

Hypermobility in Adolescent Athletes: Pain, Functional Ability, Quality of Life, and Musculoskeletal Injuries

Hypermobility in Adolescent Athletes: Pain, Functional Ability, Quality of Life, and Musculoskeletal Injuries

Altered knee joint neuromuscular control during landing from a jump in 10–15year old children with Generalised Joint Hypermobility. A substudy of the CHAMPS-study Denmark

Generalised joint hypermobility and knee joint hypermobility: prevalence, knee joint symptoms and health‐related quality of life in a Danish adult population

Contact Info

Product

Resources

About