Presentation of Young Adults With and Without Joint Hypermobility

Conditions

• Hypermobile Ehlers-Danlos Syndrome
• Postural Orthostatic Tachycardia Syndrome (POTS)

Eligibility Criteria

Sex

ALL

Age

18 Years - 60 Years

Healthy Volunteers

Accepted

Study Details

People with multiple hypermobile joints are diagnosed with Generalized Joint Hypermobility (GJH) when asymptomatic, or Hypermobile Ehlers-Danlos Syndrome (hEDS) and Hypermobility Spectrum Disorder (HSD) when symptomatic (hEDS/HSD, or 'HSD' in this document).(Russek, 2019) GJH likely affects about 20% of the U.S. population, while HSD affects 0.5-3% of the US population. Although joint hypermobility is the most visible presentation of HSD, it is a systemic connective tissue disorder affecting multiple body systems. Due to frequent health concerns, HSD may contribute to more than 30% of patients in chronic pain, rheumatology, orthopedic and physical therapy clinics.(Simmonds, 2022) It is still unclear why some people have asymptomatic hypermobility and others develop complex chronic health issues. However, recent research suggests that the transition might be triggered by severe physiological stress, such as viral infection.(Griggs, 2025) HSD is commonly associated with Postural Orthostatic Tachycardia Syndrome (POTS) and Mast Cell Activation Syndrome (MCAS), as well as gastrointestinal (GI) problems.(Wang, 2021; Ganesh, 2024) Recent research suggests that persistent inflammation due to MCAS or COVID may trigger HSD symptoms.(Ganesh, 2024) The correlation between POTS and HSD(Collins, 2025) may be due to the effects of HSD on the autonomic nervous system or to inflammation triggering both conditions. It is also unclear whether body awareness and coordination deficits seen in symptomatic HSD are due to the fundamental connective tissue disorder or due to pain and injuries in HSD. Therefore, we are interested in whether asymptomatic hypermobile individuals (GJH) also have balance and coordination deficits. The current study hopes to identify factors that correlate with a transition from asymptomatic GJH to symptomatic HSD by following a group of Health Science students forward in time. The study will collect baseline health information including relevant diagnoses, symptoms and function. Physical measurements will include standard clinical tests performed by physical therapists: joint hypermobility and instability, standing balance, neck movement control, and heart rate in response to standing from lying down. The study is likely to last for at least 10 years to follow participants over time. Clarkson's Health Science students are an ideal population to recruit because they value clinical research and the Health Science programs need to keep in contact with them after graduation to fulfill accreditation requirements, making it easier to contact them for follow-up questionnaires. Furthermore, Health Science faculty understand the importance of maintaining confidentiality of personal health information.

Key Dates

Start date

Jun 20, 2026

Status verified

Jun 2026

Primary completion

Jun 20, 2036

Completion

Jun 20, 2036

Study Design

Enrollment

100 participants (estimated)

Arms

• Arm: hypermobile - symptomatic
  People who meet the diagnostic criteria for hEDS or HSD
• Arm: non-hypermobile
  People who do not meet the diagnostic criteria for generalized joint laxity, hEDS or HSD
• Arm: hypermobile - non-symptomatic
  People with generalized joint laxity but not meeting diagnostic criteria for hEDS/HSD

Primary Outcome Measure

Symptomatic hypermobility disorder [ Time Frame: 5 years ]

Central Contacts

• Leslie N Russek, PT, DPT, PhD
  315-212-2851
  [email protected]
• Samantha Marocco, PT, DPT, EdD
  315-268-7622
  [email protected]

Locations (1)

Find similar trials in Potsdam, NY

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