BIOMECHANICAL EFFECT IN LOWER EXTREMITY AND TRUNK IN HEALTHY ADULTS IN DIFFERENT SHOE CONDITIONS - A MONOCENTRIC OBSERVATIONAL CROSS-SECTIONAL STUDY

BIOMECHANICAL EFFECT IN LOWER EXTREMITY AND TRUNK IN HEALTHY ADULTS IN DIFFERENT SHOE CONDITIONS - A MONOCENTRIC OBSERVATIONAL CROSS-SECTIONAL STUDY - Biomechanics in daily activities in different shoe conditions

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00011102

Enrollment

Registered

2016-09-22

Start date

2016-09-20

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

healthy adults

Interventions

Group 1: One sample is measured (repeated measures) when standing, walking and walking while carrying a crate (5kg) in different (shoe) conditions. Arm1: barefoot Group 2: kyBoot - unstable shoe (sof

Eligibility

Sex/Gender

All

Age

18 Years to 60 Years

Inclusion criteria

Inclusion criteria: Only healthy adults, aged between 18 and 60 years and able to walk, stand and carry a crate of 5kg barefoot, in a control- and in an unstable shoe, are included.

Exclusion criteria

Exclusion criteria: Subjects with musculoskeletal disease (scoliosis, amputation, acute/ chronic pain), neurological disease, a body mass index 30 or Diabetes Mellitus type I or II are excluded. Subjects are also excluded if they are pregnant or have practical experience with unstable shoes (MBT, Reebock easy tone, kyBoot, Joyssy, Joya, Sketcher’s Shape Up).

Design outcomes

Primary

Measure	Time frame
Primary outcome is muscle activity of following muscles: - tibialis anterior - gastrocnemius medialis - peroneus longus - vastus medialis - biceps femoris - gluteus medius - multifidi (lumbar) - obliquus externus. Muscle activity will be measured using surface EMG (myon 320, myon AG) that will be sended (1000Hz) to the computer by an EMG-sensor (myon 320, myon AG) . Therefor, two electrodes (Ambu BlueSensor N, Ambu A7S) will be used per muscle of the trunk and right leg (Seniam). Data will be processed by Vicon Nexus Software (Version 2.4) and analysed with ProEMG (Version 2.0, prophysics) and SPSS (version 21). According to a defined threshold each muscle is set on or off. Intensity (root mean square) of muscle activation, duration of muscle activation (%) and time of muscle activation (%) are of interest. One gait cycle is defined as 100%. In the walking conditions, mean values of seven trials are used, whereas in standing, we will use one value of 30 seconds.	—

Measure

Time frame

Primary outcome is muscle activity of following muscles: - tibialis anterior - gastrocnemius medialis - peroneus longus - vastus medialis - biceps femoris - gluteus medius - multifidi (lumbar) - obliquus externus. Muscle activity will be measured using surface EMG (myon 320, myon AG) that will be sended (1000Hz) to the computer by an EMG-sensor (myon 320, myon AG) . Therefor, two electrodes (Ambu BlueSensor N, Ambu A7S) will be used per muscle of the trunk and right leg (Seniam). Data will be processed by Vicon Nexus Software (Version 2.4) and analysed with ProEMG (Version 2.0, prophysics) and SPSS (version 21). According to a defined threshold each muscle is set on or off. Intensity (root mean square) of muscle activation, duration of muscle activation (%) and time of muscle activation (%) are of interest. One gait cycle is defined as 100%. In the walking conditions, mean values of seven trials are used, whereas in standing, we will use one value of 30 seconds.

—

Secondary

Measure	Time frame
Secondary outcome is the average loading rate (ground reaction force), defined as the rate of increase of GRF between 20-80% of the time between right heel strike and impact peak. Ground reaction force values will be delivered by two force plates. This outcome will be measured only in the walking conditions and will be calculated as the mean value of seven trials. Kinematic (angle, position) data of the lower limb (foot, knee,hip) and trunk will be measured by an optoelectronic system (Nexus Vicon Software).	—

Measure

Time frame

Secondary outcome is the average loading rate (ground reaction force), defined as the rate of increase of GRF between 20-80% of the time between right heel strike and impact peak. Ground reaction force values will be delivered by two force plates. This outcome will be measured only in the walking conditions and will be calculated as the mean value of seven trials. Kinematic (angle, position) data of the lower limb (foot, knee,hip) and trunk will be measured by an optoelectronic system (Nexus Vicon Software).

—

Countries

Switzerland

Contacts

Public ContactRamona Müller

Zürcher Hochschule für Angewandte WissenschaftDepartement GesundheitForschung & Entwicklung Physiotherapie

mullera1@students.zhaw.ch0041 58 934 64 80

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026