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Effect of a Flexibility Program on the Extensibility of the Hamstrings and the Thoracic and Lumbar Spinal Curvatures

Not Applicable
Completed
Conditions
Kyphosis
Spine Injury
Hamstring Injury
Lumbar Hyperlordosis
Interventions
Other: Flexibility training
Registration Number
NCT05904834
Lead Sponsor
Universidad Católica San Antonio de Murcia
Brief Summary

The goal of this clinical trial is to analyse the effect of an intervention program based on hamstring flexibility on the extensibility and curvatures of the spine in dancers.

Participants will be dance student with ten years of experience that will undergo a program of stretching four times per week during seven weeks, followed by a detraining period, and a retraining period of three weeks. There will be a pre-test, a post-test and two re-tests after the intervention.

The results will be compared with a control group of dancers that will not take part in the stretching program.

Detailed Description

Four measurements were carried out, one before the intervention (pre-test), one after the first stretching programme (post-test), one after a short period of detraining (re-test 1) and the last one at the end of a second period of intervention (re-test 2), analysing the intra-group and inter-group differences for each of the dependent variables.

The sample components (n=61) were divided into two groups following a random distribution carried out by an external researcher. The intervention group (IG), which consisted of 31 dancers, underwent the hamstring stretching programme for a first period of 7 weeks and a second period of 3 weeks after a short period of detraining. The intervention consisted of static and dynamic stretching of the hamstring muscles 4 days per week. The control group (CG), composed of 30 dancers, did not perform the stretching programme. Both groups attended their practical classes in the conservatory. During the detraining period the dancers of both groups took a break from physical exercise.

The variables measured are hamstring extensibility and sagittal spine disposition and pelvic tilt.

Recruitment & Eligibility

Status
COMPLETED
Sex
Female
Target Recruitment
61
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Flexibility trainingFlexibility trainingThe intervention group will undergo a flexibility training focused on hamstring extensibility. Each will they will take part in four stretching sessions besides the normal dance training.
Primary Outcome Measures
NameTimeMethod
Linear hamstring flexibilityRe-test 2 (week 14)

The flexibility of the hamstring will be assessed with different linear test. Sit and reach test will be performed and the measure will be reported in centimeters

Angular hamstring flexibilityRe-test 2 (week 14)

The flexibility of the hamstring will be assessed with angular tests. Straight leg raise will be performed in the active and passive versions and the result will be reported in grades

Pelvic TiltRe-test 2 (Week 14)

The pelvic tilt will be assessed in different positions, including relaxed standing, the sit and reach test and Macrae \& Wright test. The result will be reported in grades.

Thoracic spinal curvaturesRe-test 2 (month 14)

The thoracic spinal curvatures will be assessed in different positions, including relaxed standing, the sit and reach test and Macrae \& Wright test. The result will be reported in grades.

Lumbar thoracic spinal curvaturesRe-test 2 (Week 14)

The lumbar spinal curvatures will be assessed in different positions, including relaxed standing, the sit and reach test and Macrae \& Wright test. The result will be reported in grades.

Secondary Outcome Measures
NameTimeMethod

Trial Locations

Locations (1)

Universidad Católica San Antonio

🇪🇸

Murcia, Spain

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