Stimulus Phase Duration on Discomfort and Electrically Induced Torque of Quadriceps Femoris
Not Applicable
Completed
- Conditions
- TorquePain Perception
- Interventions
- Device: 1000 microsecondsDevice: 400 microsecondsDevice: 700 microseconds
- Registration Number
- NCT01862393
- Lead Sponsor
- Universidade Cidade de Sao Paulo
- Brief Summary
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.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- Female
- Target Recruitment
- 38
Inclusion Criteria
- sedentary healthy university students.
Exclusion Criteria
- history of knee surgery or injury,
- musculoskeletal, cardiovascular or neurological disease including impaired sensation.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Arm && Interventions
Group Intervention Description 1000 microseconds 1000 microseconds Electrically-induced torque generated with stimulus phase duration set at 1000 microseconds. 400 microseconds 400 microseconds Electrically-induced torque generated with stimulus phase duration set at 400 microseconds. 700 microseconds 700 microseconds Electrically-induced torque generated with stimulus phase duration set at 700 microseconds.
- Primary Outcome Measures
Name Time Method Torque During 4 seconds of electrical stimulation Torque will be measured using an isokinetic dynamometer. Torque will be registered in Newton meter \[N.m\]
- Secondary Outcome Measures
Name Time Method Discomfort 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).
Trial Locations
- Locations (1)
Universidade Cidade de São Paulo
🇧🇷Sao Paulo, SP, Brazil