The Effect of Training on Hemodynamic Factors in Ballet Dancer

NCT04469361 | Completed

• 1 other identifier: 09.2017.129
• Study Type: observational
• Target: 28
• Locations: 1 country
• Sites: 1

Brief Summary

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

Conditions

Venous Insufficiency; Foot Drop (Acquired)

Outcome Measures

Primary Outcomes (8)

• Evaluation of navicular drop

  Navicular drop was measured in mm

  Cchange from baseline navicular height in pre-intervention and immediately after the intervention/

• Evaluation of diameter of tibialis posterior vein in supine

  Diameter of tibialis posterior vein was measured in mm

  Change from baseline diameter of tibialis posterior vein during intervention

• Evaluation of flow velocity of tibialis posterior vein in supine

  Flow velocity of tibialis posterior vein was measured in cm/s

  Change from baseline flow velocity of tibialis posterior vein during intervention

• Evaluation of volume flow of tibialis posterior vein in supine

  Volume flow of tibialis posterior vein was measured in ml/min

  Change from baseline volume flow of tibialis posterior vein during intervention

• Evaluation of diameter of tibialis posterior vein during weight bearing

  Diameter of tibialis posterior vein was measured in mm

  Change from baseline diameter of tibialis posterior during intervention

• Evaluation of flow velocity of tibialis posterior vein during weight bearing

  Flow velocity of tibialis posterior vein was measured in cm/s

  Change from baseline flow velocity of tibialis posterior vein during intervention

• Evaluation of volume flow of tibialis posterior vein during weight bearing

  Volume flow of tibialis posterior vein was measured in ml/min

  Change from baseline volume flow of tibialis posterior vein during intervention

• Evaluation of midfoot plantar pressure during weight bearing

  Midfoot plantar pressure was measured in gr/cm2

  Change from baseline midfoot pressure during intervention

Study Arms (2)

Ballerinas

Balerina students who have trained at least for 4 years

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

Female students

Female students with sedentary lifestyle

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

Interventions

Navicular drop measurement OTHER

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

Ballerinas; Female students

Measurement of venous return parameters in supine 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

Ballerinas; Female students

Measurement of venous return parameters in standing 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.

Ballerinas; Female students

measurement of midfoot pressure distrubition OTHER

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

Ballerinas; Female students

Eligibility Criteria

• Age: 14 Years - 19 Years
• Gender Eligibility Details: ballerinas and females students with sedentary life styles
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)
• Sampling Method: Probability Sample

Study Population

Ballerinas taking ballet training at least for 4 years and female sedentary students

You may qualify if:

• 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

You may not qualify if:

• 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

Sponsors & Collaborators

• Marmara University: lead

Study Sites (1)

Marmara University

Istanbul, 34000, Turkey (Türkiye)

Location

Related Publications (6)

• Guss-West C, Wulf G. Attentional Focus in Classical Ballet: A Survey Of Professional Dancers. J Dance Med Sci. 2016 Mar;20(1):23-9. doi: 10.12678/1089-313X.20.1.23.

  PMID: 27025449 RESULT

• Allen N, Nevill A, Brooks J, Koutedakis Y, Wyon M. Ballet injuries: injury incidence and severity over 1 year. J Orthop Sports Phys Ther. 2012 Sep;42(9):781-90. doi: 10.2519/jospt.2012.3893. Epub 2012 Jul 19.

  PMID: 22814244 RESULT

• Gardner AM, Fox RH. The venous pump of the human foot--preliminary report. Bristol Med Chir J. 1983 Jul;98(367):109-12. No abstract available.

  PMID: 6616290 RESULT

• Kim TI, Forbang NI, Criqui MH, Allison MA. Association of foot and ankle characteristics with progression of venous disease. Vasc Med. 2015 Apr;20(2):105-11. doi: 10.1177/1358863X14568443.

  PMID: 25832598 RESULT

• Pearson SJ, Whitaker AF. Footwear in classical ballet: a study of pressure distribution and related foot injury in the adolescent dancer. J Dance Med Sci. 2012;16(2):51-6.

  PMID: 22687718 RESULT

• Khan K, Brown J, Way S, Vass N, Crichton K, Alexander R, Baxter A, Butler M, Wark J. Overuse injuries in classical ballet. Sports Med. 1995 May;19(5):341-57. doi: 10.2165/00007256-199519050-00004.

  PMID: 7618011 RESULT

MeSH Terms

Conditions

Venous Insufficiency; Peroneal Neuropathies

Interventions

Supine Position; Standing Position

Condition Hierarchy (Ancestors)

Vascular Diseases; Cardiovascular Diseases; Mononeuropathies; Peripheral Nervous System Diseases; Neuromuscular Diseases; Nervous System Diseases

Intervention Hierarchy (Ancestors)

Posture; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Officials

• Nilüfer Kablan, PhD

  Marmara University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 2, 2020
• First Posted: July 14, 2020
• Study Start: September 4, 2017
• Primary Completion: November 3, 2017
• Study Completion: January 5, 2018
• Last Updated: July 14, 2020

Record last verified: 2017-02

Locations

TU (1)