The Effect of Training on Hemodynamic Factors in Ballet Dancer

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

28 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-09-04

Study Completion Date

2018-01-05

Brief Summary

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Classic ballet dance is a demonstration of complex motor skills to be revealed in aesthetic combinations and repetitively, and it demands intensive use of the lower extremities within extreme of range of motion (ROM). Because ballet practice depends on advanced technical skills, it involves intensive physical training and causes an overload on the musculoskeletal system and foot deformities such as pes planus.

Plantar venous pump (PVP) is a network of multiple venous vessels located between the muscles of the foot arch. PVP is considered the first step of venous return and discharges into the posterior tibial vein (PTV). PVP is reported to be active during gait while it is inactive in resting position. There are different views on the mechanisms enabling its activation 1-3. The general view is that during the stance phase of the gait, the flattening of the plantar arch with weight transfer causes the veins in this region to narrow and creates a force that pumps the blood up.

The aim of this study is the investigation what kind of hemodynamic changes ballet training causes in the lower extremity

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Detailed Description

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Conditions

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Venous Insufficiency Foot Drop (Acquired)

Study Design

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Observational Model Type

OTHER

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Ballerinas

Balerina students who have trained at least for 4 years

Navicular drop measurement

Intervention Type OTHER

The difference in navicular height between sitting and standing positions was recorded (mm) as the amount of navicular drop.

Measurement of venous return parameters in supine

Intervention Type OTHER

Venous return parameters of posterior tibial vein was measured when participant applied force equivalent to their own body weight on plantar surface of their right leg in supine position

Measurement of venous return parameters in standing

Intervention Type OTHER

In standing, venous return parameters was measured of posterior tibial vein when participants shift all of their weight to the right leg for 3 second with their leg muscles as relaxed as possible and their knee joint in full extension.

measurement of midfoot pressure distrubition

Intervention Type OTHER

In standing, midfoot pressure distrubution was measured when participants shift all of their weight to the right leg

Female students

Female students with sedentary lifestyle

Navicular drop measurement

Intervention Type OTHER

The difference in navicular height between sitting and standing positions was recorded (mm) as the amount of navicular drop.

Measurement of venous return parameters in supine

Intervention Type OTHER

Venous return parameters of posterior tibial vein was measured when participant applied force equivalent to their own body weight on plantar surface of their right leg in supine position

Measurement of venous return parameters in standing

Intervention Type OTHER

In standing, venous return parameters was measured of posterior tibial vein when participants shift all of their weight to the right leg for 3 second with their leg muscles as relaxed as possible and their knee joint in full extension.

measurement of midfoot pressure distrubition

Intervention Type OTHER

In standing, midfoot pressure distrubution was measured when participants shift all of their weight to the right leg

Interventions

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Navicular drop measurement

The difference in navicular height between sitting and standing positions was recorded (mm) as the amount of navicular drop.

Intervention Type OTHER

Measurement of venous return parameters in supine

Venous return parameters of posterior tibial vein was measured when participant applied force equivalent to their own body weight on plantar surface of their right leg in supine position

Intervention Type OTHER

Measurement of venous return parameters in standing

In standing, venous return parameters was measured of posterior tibial vein when participants shift all of their weight to the right leg for 3 second with their leg muscles as relaxed as possible and their knee joint in full extension.

Intervention Type OTHER

measurement of midfoot pressure distrubition

In standing, midfoot pressure distrubution was measured when participants shift all of their weight to the right leg

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* receiving ballet training at least 10 h per week for at least 4 years
* receiving formal dancing training system

* never receiving formal dancing training
* having sedentary lifestyle

Exclusion Criteria

* Participants with a history of foot or ankle surgery,
* Participants with connective tissue disease,
* Participants with rigid pes planus-cavus,
* Participants with chronic venous insufficiency
* Participants with acute ankle injury in recent 3 months

Minimum Eligible Age

14 Years

Maximum Eligible Age

19 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes