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Lateral Neck Flexor Endurance and Hyperlaxity

Lateral Neck Flexor Endurance in Individuals With and Without Systemic Hyperlaxity

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04770987
Enrollment
60
Registered
2021-02-25
Start date
2021-02-26
Completion date
2021-07-16
Last updated
2021-07-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hypermobility, Joint, Muscular Weakness, Physical Endurance

Keywords

neck musculature, endurance, tests and measures

Brief summary

The lateral neck flexor endurance test has been proposed to assess for unilateral muscular deficits. It is not known if individuals with hyperlaxity have different muscular endurance than individuals without hyperlaxity.

Detailed description

Thirty individuals with systemic hyperlaxity as determined with the Beighton scale will be assessed for lateral neck flexor endurance and compared to age and gender matched controls. Basic demographic information will be collected, and all individuals will report Neck Disability Index (NDI) and Numeric Pain Rating Scales (NPRS) for their neck, as well duration of any neck pain. All participants will then undergo testing of lateral neck flexor muscle endurance, repeated twice on each side. Average hold times will be compared for individuals with hyperlaxity (5 or greater on Beighton scale) and the healthy age and gender matched controls. Analysis will also include covariates of NDI scores, pain scores, and chronicity of symptoms.

Interventions

OTHERlateral neck flexor endurance test

Individuals will maintain the head in a neutral position off the ground in sidelying for as long as possible.

Sponsors

University of Hartford
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

systemic hyperlaxity of 5 or greater on Beighton Index, healthy age/gender matched controls

Exclusion criteria

* neck pain that spreads into the arms; * whiplash injury within the last 6 weeks; * diagnosed neuropathy or other nervous system disorders; * a history of spinal surgery in their neck; * fibromyalgia; * insulin dependent diabetes; * involved in legal activity regarding neck pain

Design outcomes

Primary

MeasureTime frameDescription
lateral neck flexor endurancesingle testing session at enrollmentmaximum hold time

Secondary

MeasureTime frameDescription
Beighton Hyperlaxity Scaleat enrollmentAssessment of systemic hyperlaxity, 0-9 points, higher indicates greater hyperlaxity
Neck Disability Indexat enrollmentQuestionnaire assessing impact of neck symptoms on function, 0-100 points, higher score indicates greater disability
Numeric pain rating scaleat enrollmentassessment of neck pain, 0-10 with higher indicating greater levels of pain

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026