Interplay of scapular kinematics, muscle activation and cranial translation in healthy volunteers

Interplay of scapular kinematics, muscle activation and cranial translation in healthy volunteers - INTACT

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON44345

Enrollment

Registered

2016-05-12

Start date

2016-01-06

Completion date

Unknown

Last updated

2024-02-28

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

Conditions

Healthy shoulder biomechanics

Interventions

electromyography

humerus

scapular kinematics

translation

Eligibility

Age

18 Years to 64 Years

Inclusion criteria

Inclusion criteria: No current or past shoulder complaint (bilateral);Further definition: Visual Analogue Scale for shoulder-pain of

Exclusion criteria

Exclusion criteria: History of shoulder complaints (e.g. pain, instability, dysfunction) Definition: patients who received medical attention for a shoulder complaint or experienced shoulder complaints (impaired function or experienced pain) > 1 week. No full range of motion during physical examination History of malignancy History of traumatic shoulder injury History of fracture of the shoulder History of osteoarthritis or rheumatoid arthritis Frozen shoulder Previous shoulder injections or shoulder surgery History of neurologic disease or muscle disease Diabetes mellitus No informed consent Insufficient Dutch language skills Pacemaker or other electronic devices.

Design outcomes

Primary

Measure	Time frame
Scapulothoracic movement (posterior tilt = scapular rotation in the sagital plane)	—

Secondary

Measure	Time frame
Three dimensional electromagnetic motion analysis (see paragraph 6.1.3) Scapulothoracic motion (i.e. protraction, lateral rotation and tilt) at various abduction angles. Gropho (see paragraph 6.1.4) * Acromio-humeral (AH) distance on standard AP radiograph at rest: AHrest. * Acromio-humeral (AH) distance on AP radiograph in isometric abduction: AHabd. * Dynamic cranial translation is measured by: AHrest - AHabd = dAH . * Scapular spine-humeral-head center (SHC) at rest, SHCrest. * SHC during an isometric abduction task, SHCabd. * SHC at rest, SHCrest. * dynamic SHC, dSHC = SHCrest - SHCabd. * absolute EMG activity and activation ratios. For further explanation, see sections 6.1.4 and 6.1.6. External force controlled electromyography (see paragraph 6.1.5) * absolute EMG activity and activation ratios. For further explanation on EMG activity calculations, see sections 6.1.5 and 6.1.6. Clinical evaluation (see paragraph 6.1.7) * Visual Analogue Scale(VAS) for pain. * Constant score. * SF-36.	—

Measure

Time frame

Three dimensional electromagnetic motion analysis (see paragraph 6.1.3) Scapulothoracic motion (i.e. protraction, lateral rotation and tilt) at various abduction angles. Gropho (see paragraph 6.1.4) * Acromio-humeral (AH) distance on standard AP radiograph at rest: AHrest. * Acromio-humeral (AH) distance on AP radiograph in isometric abduction: AHabd. * Dynamic cranial translation is measured by: AHrest - AHabd = dAH . * Scapular spine-humeral-head center (SHC) at rest, SHCrest. * SHC during an isometric abduction task, SHCabd. * SHC at rest, SHCrest. * dynamic SHC, dSHC = SHCrest - SHCabd. * absolute EMG activity and activation ratios. For further explanation, see sections 6.1.4 and 6.1.6. External force controlled electromyography (see paragraph 6.1.5) * absolute EMG activity and activation ratios. For further explanation on EMG activity calculations, see sections 6.1.5 and 6.1.6. Clinical evaluation (see paragraph 6.1.7) * Visual Analogue Scale(VAS) for pain. * Constant score. * SF-36.

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Countries

The Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)