Validity and Reliability of a Low-cost Chair Dynamometer

Status

UNKNOWN

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04291924

Enrollment

Registered

2020-03-02

Start date

2020-11-15

Completion date

2021-04-01

Last updated

2020-10-27

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

Conditions

Spinal Cord Injuries

Brief summary

In part 1 of the study, fourteen able-bodied individuals will undergo maximal, voluntary contraction (MVC) test of the lower limbs in two dynamometers. One being a low-cost dynamometer (S2P-CD), and the other being a gold standard dynamometer (HUMAC). Thereby the investigators will be able to assess the validity of the S2P-CD. In part 2 of the study, eighteen persons with spinal cord injury will undergo MVC twice in the S2P-CD. Thereby the investigators will be able to assess the reliability of the measurements of the S2P-CD.

Detailed description

In part 1 of the study, fourteen able-bodied individuals will undergo maximal, voluntary contraction (MVC) test of the lower limbs in two dynamometers. One being a low-cost dynamometer (S2P-CD), and the other being a gold standard dynamometer (HUMAC). The tests will be carried out with 72-96 hours between them. Thereby the investigators will be able to assess the validity of the S2P-CD. In part 2 of the study, eighteen persons with spinal cord injury will undergo MVC twice in the S2P-CD. Participants will be recruited through the Spinal Cord Injury Centre of Western Denmark (SCIWDK). The test will be carried out with 30min between them. Thereby the investigators will be able to assess the reliability of the measurements of the S2P-CD.

Interventions

DIAGNOSTIC_TESTDynamometry

A test for maximal muscle strength and explosive power in the lower limbs

Study design

Observational model

OTHER

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

Ablebodied individuals: Inclusion Criteria: * Age \>18 y

Exclusion criteria

* Orthopedic or other injuries that may limit maximal muscle strength Spinal cord injured individuals: Inclusion Criteria: * Age \> 18 y * Congenital or acquired spinal cord injury with some degree of preserved muscle function in the lower limbs

Design outcomes

Primary

Measure	Time frame	Description
Maximal voluntary contraction	15min	Maximal muscle strength

Secondary

Measure	Time frame	Description
Rate of force development	15min	Explosive muscle strength

Countries

Denmark

Contacts

Primary ContactSøren K Jensen, MSc

sokrje@rm.dk78449854

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026