The Effect of Training on Hemodynamic Factors in Ballet Dancer

Marmara University

Status: Completed

Conditions: Venous Insufficiency; Foot Drop (Acquired)

Treatments: Other: Navicular drop measurement; Other: Measurement of venous return parameters in supine; Other: Measurement of venous return parameters in standing; Other: measurement of midfoot pressure distrubition

Study type: Observational

Funder types: Other

Identifiers

NCT04469361

09.2017.129

Details and patient eligibility

About

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

Enrollment: 28 patients

Sex: Female

Ages: 14 to 19 years old

Volunteers: Accepts Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria (for balerinas):

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

Inclusion Criteria (for non-dancer group)

• 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

Trial design

28 participants in 2 patient groups

Ballerinas

Description:

Balerina students who have trained at least for 4 years

Treatment:

Other: Measurement of venous return parameters in supine

Other: Navicular drop measurement

Other: measurement of midfoot pressure distrubition

Other: Measurement of venous return parameters in standing

Female students

Description:

Female students with sedentary lifestyle

Treatment:

Other: Measurement of venous return parameters in supine

Other: Navicular drop measurement

Other: measurement of midfoot pressure distrubition

Other: Measurement of venous return parameters in standing