One group:
Device:
Grade C: Low level of scientific evidence.
Level 4: Case series.
Group 1:
Group 2 (Control):
Limitations:
Grade B: Scientific presumption.
Level 2: Well-conducted non-randomized controlled studies.
One group:
CRET therapy (CET 5min + RET 5min) with acupuncture for 10 minutes.Device: BACK3SE, Winback.
Limitations:
Grade C: Low level of scientific evidence.
Level 4: Case series.
Group 1:
CRET therapy (CET 5min + RET 10min) at 300 and 500kHz for 15 minutes.Device: BACK1SE, Winback.
Group 2 (Control):
CRET therapy PLACEBO.No significant difference between groups.
Limitations:
Grade A: Established scientific evidence.
Level 1: High-powered randomized controlled trials.
One group:
CRET therapy (CET 5min + RET 5-10min) at 300kHz for 10-15 minutes.Device: BACK3SE, Winback.
Limitations:
Grade C: Low level of scientific evidence.
Level 4: Case series.
One group:
CRET therapy (CET 5min + RET 10min) at 300kHz for 15 minutes.Device: BACK3SE, Winback.
Limitations:
Grade C: Low level of scientific evidence.
Level 4: Case series.
Group 1:
Conventional physiotherapy treatment.Group 2:
Conventional physiotherapy treatment + CRET therapy (12 sessions).Device: BACK3SE, Winback.
Limitations:
Grade A: Established scientific evidence.
Level 1: High-powered randomized controlled trials.
One group:
CRET therapy (CET + RET) at 500kHz for 16 minutes (24 sessions).Device: BACK3SE, Winback.
Limitations:
Grade C: Low level of scientific evidence.
Level 4: Case series.