NCT04336007

Brief Summary

This study aims to evaluate the potential benefits of Monopolar Capacitive Resistive Radio-frequency (448 kHz) on the sports performance of Paralympic swimmers.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
13

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2020

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 16, 2020

Completed
8 days until next milestone

First Submitted

Initial submission to the registry

March 24, 2020

Completed
14 days until next milestone

First Posted

Study publicly available on registry

April 7, 2020

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2021

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2021

Completed
Last Updated

February 11, 2021

Status Verified

March 1, 2020

Enrollment Period

1.1 years

First QC Date

March 24, 2020

Last Update Submit

February 8, 2021

Conditions

Outcome Measures

Primary Outcomes (6)

  • Time-trials (Experimental Group)

    Time in Seconds that takes the athlete since taking off from the edge of the pool until reaching two different distances, 50 and 100 meters, measuring each distance twice, time will be measure by technical digital chronometer.

    through study completion, an average of 4 months

  • Time-trials (Placebo Group)

    Time in Seconds that takes the athlete since taking off from the edge of the pool until reaching two different distances, 50 and 100 meters, measuring each distance twice, time will be measure by technical digital chronometer.

    through study completion, an average of 4 months

  • Time-trials (Sham Group)

    Time in Seconds that takes the athlete since taking off from the edge of the pool until reaching two different distances, 50 and 100 meters, measuring each distance twice, time will be measure by technical digital chronometer.

    through study completion, an average of 4 months

  • Change of Perceived exertion (Experimental Group)

    To measure the athlete's qualification of their exertion the Borg Rate of Perceived Exertion (RPE) Scale® will be used, previously validated and with the proper license, measures will be taken pre/post-competition.

    through study completion, an average of 4 months

  • Change of Perceived exertion (Placebo group)

    To measure the athlete's qualification of their exertion the Borg Rate of Perceived Exertion (RPE) Scale® will be used, previously validated and with the proper license, measures will be taken pre/post-competition.

    through study completion, an average of 4 months

  • Change of Perceived exertion (Sham group)

    To measure the athlete's qualification of their exertion the Borg Rate of Perceived Exertion (RPE) Scale® will be used, previously validated and with the proper license, measures will be taken pre/post-competition.

    through study completion, an average of 4 months

Secondary Outcomes (10)

  • Age

    through study completion, an average of 4 months

  • Sex

    through study completion, an average of 4 months

  • International Paralympic Committee Classification.

    through study completion, an average of 4 months

  • Weight.

    through study completion, an average of 4 months

  • Height.

    through study completion, an average of 4 months

  • +5 more secondary outcomes

Study Arms (3)

Radio-frequency group

EXPERIMENTAL

The equipment used, INDIBA® Activ Ct9, (448kHz), with the switch-mode on.

Device: Resistive Diathermy (INDIBA® Activ Ct9)

Placebo group

PLACEBO COMPARATOR

The equipment used, INDIBA® Activ Ct9, (448kHz), with the switch-mode off.

Device: Resistive Diathermy OFF (INDIBA® Activ Ct9)

Control Group

SHAM COMPARATOR

NO INTERVENTION athlete's usual pre-competition warming-up

Other: Control

Interventions

Intervention is conducted using a 65-mm diameter Resistive (RES) electrode (movable), and a planar electrode was used as a return electrode on the abdomen. The electricity is administered in the following manner: cream was applied to the upper limbs existent area, and the electrical output is marked at 75% by moving the movable electrode and if not tolerated by the patient lowered until 35%, Therapy is conducted for 20 minutes, prior swimming time trials.

Radio-frequency group

Placebo is conducted using a 65-mm diameter RES electrode (movable), and a planar electrode was used as a return electrode on the abdomen. The electricity IS NOT administered, the cream was applied to the upper limbs existent area and moving the movable electrode, intervention is conducted for 20 minutes, prior to swimming time trials.

Placebo group
ControlOTHER

This group will warm-up as they usually do in competitions, for later time trial measuring.

Control Group

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Informed consent signed.
  • Age between 18 y 70 years old.
  • Already in the position of the International Paralympic Committee (IPC) classification.
  • Know their personal mark (50-100mts).
  • Having the capacity to fill and understand questionnaires, understand and follow verbal orders.

You may not qualify if:

  • Pregnancy.
  • Use of pacemakers or other types of electronic implants
  • Non-intact skin (open wounds or recent burns)
  • thrombophlebitis
  • Known allergy to nickel and chromium
  • Symptomatic anemia (hemoglobin below 12g / dl presenting any of these symptoms: tiredness, shortness of breath, dizziness, palpitations or headache).
  • Present feverish process
  • Elimination criteria:
  • Revocation of inform consent.
  • Attend to less than three visits.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Universidad Complutense de Madrid

Madrid, 28040, Spain

Location

Related Publications (1)

  • De Sousa-De Sousa L, Espinosa HG, Mate-Munoz JL, Lozano-Estevan MDC, Cerrolaza-Tudanca S, Rozalen-Bustin M, Fernandez-Carnero S, Garcia-Fernandez P. Effects of Capacitive-Resistive Electric Transfer on Sports Performance in Paralympic Swimmers: A Stopped Randomized Clinical Trial. Int J Environ Res Public Health. 2022 Nov 7;19(21):14620. doi: 10.3390/ijerph192114620.

Study Officials

  • Pablo Garcia Fernández

    Universidad Complutense de Madrid

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 24, 2020

First Posted

April 7, 2020

Study Start

March 16, 2020

Primary Completion

May 1, 2021

Study Completion

July 1, 2021

Last Updated

February 11, 2021

Record last verified: 2020-03

Data Sharing

IPD Sharing
Will not share

Locations