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Impact of Different Shoe Heel Heights on Spinal Configuration

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT03688750
Recruitment Status : Not yet recruiting
First Posted : September 28, 2018
Last Update Posted : July 25, 2019
Information provided by (Responsible Party):
HAhmed, Cairo University

Brief Summary:

90 healthy female subjects with regular menstrual cycle ,their ages ranged from 19-25 years,their BMI ranged from 18-25 will be participated in this study.

Formetric Raster Stereography will be used to assess spinal configuration while each participant wear shoes of different heel heights 2.5 cm (low),4.5 cm (moderate) and 7 cm (height) during early follicular and mid luteal phases of menstrual cycle.

Condition or disease Intervention/treatment
Impact of Different Heel Heights on Spinal Configuration Other: no intervention

Detailed Description:
  • this study will be conducted on healthy females to investigate effect of different heel heights footwear on spine posture and pelvic position by using formetric 4 D analysis system which is a light-optical scanning method based on Video-Raster-Stereography (VRS). Accordingly, the system consists of a light projector which projects a line grid on the back of the patient which is recorded by an imaging unit. A computer software analyzes the line curvature that generates from it. the formetric provides comprehensive information about the whole body statics and posture in only one measuring process, e.g. spine curvature (lateral and frontal), vertebral rotation, and pelvic position.
  • There is generally no need for reflecting markers, because the anatomical fixed points Vertebra prominens (VP), Sacrum Point (SP), Dimple Left (DL) Dimple Right (DR) as well as the spinal center line and spinal rotation are automatically detected by the system. That allows a very time-saving and reliable examination procedure.
  • shoe characteristics: standard shoes will be used and designed to fit females in sizes ranging from 37-41 and different heel heights (2.5 cm low, 4,5 cm moderate and 7 cm high).
  • Descriptive statistics including mean and standard deviation will be applied for dependent variables and participant demographics. repeated measures analysis of variance will be implemented to detect the difference in dependent measures among three heel condition.

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Study Type : Observational
Estimated Enrollment : 90 participants
Observational Model: Other
Time Perspective: Prospective
Official Title: Impact of Different Shoe Heel Heights on Spinal Configuration During Different Phases of Menstrual Cycle
Estimated Study Start Date : July 2019
Estimated Primary Completion Date : August 2019
Estimated Study Completion Date : September 2019

Primary Outcome Measures :
  1. kyphotic angle [ Time Frame: from 9/2018 to 6/2019 ]
    this the maximum angle measured between surface tangents of the upper inflection point in the vicinity of the vertebra prominence and the thoracic lumbar inflection point

  2. Lordotic angle [ Time Frame: from 9/2018 to 6/2019 ]
    this the maximum angle measured between surface tangents of the thoracic lumbar inflection point and lower lumbar-sacral inflection point

  3. trunk imbalance [ Time Frame: from 9/2018 to 6/2019 ]
    trunk imbalance is defined as the lateral deviation of the vertebra prominence from the mid line dimple

  4. trunk inclination [ Time Frame: from 9/2018 to 6/2019 ]
    trunk inclination refers to a difference in the height between vertebra prominence and dimple mid line based on a vertical plane (sagittal section)

  5. pelvic tilting [ Time Frame: from 9/2018 to 6/2019 ]
    pelvic tilt refers as the difference in the height of the lumbar dimple based on horizontal plane ( transverse section)

  6. pelvic inclination [ Time Frame: from 9/2018 to 6/2019 ]
    it is calculated as the mean torsion of the dimple left and dimple right surface normals

Information from the National Library of Medicine

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Ages Eligible for Study:   19 Years to 25 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
90 healthy females with regular menstrual cycle

Inclusion Criteria:

  • Their ages ranged from 19-25.
  • Their BMI ranged from 18-25
  • They wear high heeled shoes occasionally for less than 10 H/week or not at all
  • they are able to wear high heel without pain.

Exclusion Criteria:

  • any female with spinal deviation,previous spinal surgeries,leg length discrepancy or foot deformities
  • Joint stiffness, ankle sprain
  • any case with orthopedic or neurological problems
  • Females with irregular menstrual cycle
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Responsible Party: HAhmed, lecturer of biomechanics, Cairo University Identifier: NCT03688750    
Other Study ID Numbers: P.T.REC/012/001884
First Posted: September 28, 2018    Key Record Dates
Last Update Posted: July 25, 2019
Last Verified: November 2018

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by HAhmed, Cairo University:
heel height
spinal configuration
phases of menstrual cycle