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OpenTrials
Completed

NCT Number: NCT01862393

Stimulus Phase Duration on Discomfort and Electrically Induced Torque of Quadriceps Femoris

This study aims to examine the variation in muscle torque and discomfort produced when electrically stimulating quadriceps femoris using pulsed current with three different phase durations in order to establish whether there are any advantages or disadvantages in varying the phase duration over the range examined.

Completed

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Key information

Conditions

Torque Pain Perception

Age range

18 year–35 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Universidade Cidade de São Paulo

São Paulo, 03071-000, Brazil

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • sedentary healthy university students.

Exclusion criteria

  • history of knee surgery or injury,
  • musculoskeletal, cardiovascular or neurological disease including impaired sensation.

Treatment and study plan

400 microseconds

Device

Neuromuscular electrical stimulation with stimulus phase duration of 400 microseconds

700 microseconds

Device

Neuromuscular electrical stimulation with stimulus phase duration of 700 microseconds

1000 microseconds

Device

Neuromuscular electrical stimulation with stimulus phase duration of 1000 microseconds

Primary outcomes

  1. Torque

    Time frame: During 4 seconds of electrical stimulation

    Torque will be measured using an isokinetic dynamometer. Torque will be registered in Newton meter [N.m]

Secondary outcomes

  1. Discomfort

    Time frame: During 6 seconds of electrical stimulation

    Discomfort will be measured using a 10 cm visual analogue scale (VAS) ranging from zero (no discomfort) to 10 (worst discomfort imaginable).

Sponsors and collaborators

Lead sponsor

Universidade Cidade de Sao Paulo

Other

Registry information

Official study title

The Influence of Stimulus Phase Duration on Discomfort and Electrically Induced Torque of Quadriceps Femoris

Important dates

Study start
2008
Primary completion
2008
Study completion
2008
First posted
May 24, 2013
Registry last updated
Sep 1, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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