Clinical trial NCT06853548: Core Stability and Respiratory Parameters in Children With Thoracic Hyperkyphosis
Official title: Investigation of the Relationship Between Core Stability and Respiratory Parameters in Children With Thoracic Hyperkyphosis
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Hyperkyphosis
Respiratory Failure
Keywords: Thoracic Hyperkyphosis
Respiratory Function
Respiratory Muscle Strength
Core Stability
Lead sponsor: Istinye University
Sponsor class: OTHER
First posted: 2025-03-03
Enrollment: 33
Sex: ALL
Minimum age (years): 7
Maximum age (years): 18
Standard ages: CHILD
ADULT
Accepts healthy volunteers: no
Observational model: OTHER
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: hildren with thoracic hyperkyphosis.

Brief summary: Hyperkyphosis, defined as an excessive curvature of the thoracic spine beyond normal limits, is among the factors that reduce chest wall mobility and lung function. In modern society, increased sitting durations contribute to increased thoracic kyphosis. Studies have indicated that an increase in thoracic kyphosis and a decrease in thoracic spinal mobility are associated with reduced respiratory functions, such as forced vital capacity (FVC) and forced expiratory volume in one second (FEV1).

The diaphragm forms the upper part of the core stability system. When contracted, it increases intra-abdominal pressure, contributing to core stability. The diaphragm also contracts in advance of and during limb movements to assist in postural control. Additionally, the diaphragm is the primary respiratory muscle responsible for inspiration. Any functional loss in the diaphragm, which alone accounts for 65-80% of vital capacity, can significantly reduce inspiratory capacity. During forced expiration, muscles such as the rectus abdominis, transversus abdominis, internal obliques, and external obliques play an active role. Specifically, the transversus abdominis, like the diaphragm, increases intra-abdominal pressure and supports trunk stabilization. However, the relationship between respiratory muscle strength and the endurance of core stability muscles remains unclear.

In light of this information, this study aims to investigate the relationship between the endurance of core muscles, which contribute to trunk stabilization, and respiratory parameters in children with thoracic hyperkyphosis.


Eligibility criteria: Inclusion Criteria:

* Be between the ages of 7 and 18
* Have a thoracic kyphosis angle (Cobb) of ≥45˚ on a lateral X-ray or a kyphosis index of ≤13

Exclusion Criteria:

* Individuals who have undergone major surgery or trauma related to the musculoskeletal system, particularly the spine and upper extremities
* Difficulty in understanding given instructions
* Presence of rigid deformity in the spine (Scheuermann's Kyphosis)
* Presence of congenital deformities (Congenital Kyphosis)

Primary outcomes:
measure: Forced vital capacity
timeFrame: 2 weeks
measure: Forced expiratory volume in the first second
timeFrame: 2 weeks
measure: Forced vital capacity/Forced expiratory volume Ratio
timeFrame: 2 weeks
measure: Peak expiratory flow rat
timeFrame: 2 weeks
measure: Respiratory Muscle Strength
timeFrame: 2 weeks
measure: side bridge test
timeFrame: 2 weeks
measure: prone bridge test
timeFrame: 2 weeks
measure: flexor endurance test
timeFrame: 2 weeks
measure: Sorenson test
timeFrame: 2weeks
Secondary outcomes:
Other outcomes:
Locations:
city: Istanbul
country: Turkey
facility: Istinye University
Study officials:
References: