Muscle Strength and Balance in Individuals With Joint Hypermobility

Summary

Joint hypermobility is a clinical condition characterized by joints having a range of motion beyond their normal limits. Joint hypermobility (JH) makes the joints more vulnerable to trauma in individuals with increased joint range of motion, changes in neuromuscular reflexes and decreased joint position sense. Individuals with JH have difficulty in stabilization and end of extension range of motion compared to healthy individuals. Accordingly, findings such as balance problems and an increased risk of falling occur in these patients. Recent evidence suggests that children and adults with JH may be identified with seemingly unrelated, common clinical problems such as chronic fatigue, anxiety, and a range of gastrointestinal functional disorders.

The use of internal and external focus in learning motor skills is important in terms of performance and activity. In the external focus of attention (EF), attention is directed to movement and an environmental stimulus. In the internal focus (IF), attention is directed directly to body movements. In revealing positive effects in external focus; Methods such as metaphor, analogy, imaginary objects, mental analogies can be used. Adopting an external focus of attention (focusing on the effects of movements on the object or environment), as opposed to an internal focus of attention (focusing on body movements), has been found to significantly improve performance on a variety of tasks. For example, to improve balance performance, while a patient performs a single-leg balance task on a Bosu ball, the therapist may instruct the patient using an internal focus of attention such as "minimize movement of the feet." However, instructions can also be given externally by changing just one word, such as "minimize Bosu's movement." Additionally, a metaphor (e.g., "stand still as if stuck to Velcro"), analogy ("imagine being on top of a mountain, stay on the mountain!"), an object attached to the body ("keep the tape stuck to the chest still"), or the target of the movement An imaginary object (e.g., straight line) of which a mental image is obtained has been used within external focus instructions.

Conditions

• Joint Hypermobility
• Balance
• Muscle Strength

Interventions

BEHAVIORAL

Static balance assessment

Biodex stabilometer device will be used to evaluate the static balance of the participants.

BEHAVIORAL

Dynamic balance assessment:

Individuals' dynamic balance performances were evaluated with the Y balance test. Y balance test is a test method with proven validity and reliability in athletes and healthy subjects. (Intra-class correlation 0.99-1, Inter-class correlation 0.85-0.91).

BEHAVIORAL

Isokinetic strength evaluation:

Quadriceps muscle strength of the participants will be evaluated with an isokinetic dynamometer. Isokinetic dynamometers are considered the gold standard in muscle strength measurements. These devices have the ability to objectively report the amount of force produced by individuals at predetermined angular speed and joint range of motion.

Sponsors & Collaborators

• Gazi University

  lead OTHER

Principal Investigators

• Ali ZORLULAR · Study Principal Investigator

Eligibility

Min Age

18 Years

Max Age

35 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2024-01-15

Primary Completion

2024-03-14

Completion

2024-03-14

Countries

• Turkey (Türkiye)

Study Locations