pain
Conditions
Interventions
1:Current 1 mA, -250µA per return electrode
frequency 0-650Hz
DC-offset 1 mA (-250µA per return electrode)
stimulation time 20min
2:Current 1.5 mA, -250µA per return electrode
stimulation time 20min.
3:Current 2 mA, -250µA per return electrode
4:DC current during sham stimulation was also increased in a ramp-like manner for 30 s until reaching 1 mA. The current intensity then gradually decreases (ramps off) over 30 seconds until it switches
Sponsors
Shanghai University of Sport
Eligibility
Sex/Gender
All
Age
18 Years to 35 Years
Inclusion criteria
Inclusion criteria: (1) Aged between 18-35 years old; (2) The construction of capsaicin-induced pain model can be achieved; (3) No sports-specific or professional athletes; (4) Body mass index between 18-23.9kg/m2; (5) Right-handed; (6) Vision or corrected-to-normal vision is normal; (7) Be physically and mentally healthy, have normal cognitive abilities, and be able to successfully complete this experiment; (8) No persistent or intermittent body pain in any of the past 3 months, and no abnormal sensation in the waist and limbs; (9) No habit of smoking, drinking, regularly taking sleeping pills, analgesics and other drugs; (10) Subjects voluntarily participate and sign informed consent;
Exclusion criteria
Exclusion criteria: (1) Women are in menstruation or pregnancy; (2) Received neuromodulation intervention such as transcranial electrical stimulation or transcranial magnetic stimulation within the past 3 months; (3) There are metal implants on the head or metal implants such as heart stents and pacemakers in the body; (4) Mental illness such as depression, schizophrenia or autism, regular use of opioids or antipsychotics; (5) Any neurological or musculoskeletal disease, especially epilepsy, stroke, brain trauma or migraine, as well as diseases that affect sensory processing, such as diabetes; (6) There are other acute symptoms on the day of the experiment, such as colds, fever, etc.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| pressure pain threshold;conditioned pain modulation;heat pain threshold; | — |
Secondary
| Measure | Time frame |
|---|---|
| pain empathy test;Attention network test;functional near-infrared spectroscopy; | — |
Countries
China
Contacts
Public ContactWang Xueqiang
Shanghai University of Sport
Outcome results
None listed