NCT06671951

Brief Summary

A focal vibration device will be used to perform an activation and warm-up protocol before performing a set of 7 repetitions of squat with 60% of your 1RM.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
72

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Nov 2024

Shorter than P25 for not_applicable

Status
not yet recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 25, 2024

Completed
3 months until next milestone

First Posted

Study publicly available on registry

November 4, 2024

Completed
1 day until next milestone

Study Start

First participant enrolled

November 5, 2024

Completed
25 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2024

Completed
6 days until next milestone

Study Completion

Last participant's last visit for all outcomes

December 6, 2024

Completed
Last Updated

November 4, 2024

Status Verified

October 1, 2024

Enrollment Period

25 days

First QC Date

July 25, 2024

Last Update Submit

October 31, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • Mean Speed during squat

    A linear transducer (Vitruve VBT) was used to measure the mean speed during the squat. The tether device was attached to the right side of the barbell around the widest part of the collar on the inside and this converts the subject's movement with the barbell into an electrical signal that will record the mean speed and of the exercise. Subjects will per-form 7 repetitions at 0,85 m/s at the maximum possible speed with the optimal load to generate the maximum power. Linear transducers which have greater accuracy (5%) and reliability (ICC: 0.752; 95% CI: 0.548 - 0.855) compared to other devices in terms of velocity-based training (VBT) meas-urement.

    1 minute

  • Mean Power during squat

    A linear transducer (Vitruve VBT) was used to measure the mean power during the squat. The tether device was attached to the right side of the barbell around the widest part of the collar on the inside and this converts the subject's movement with the barbell into an electrical signal that will record the mean power of the exercise. Subjects will per-form 7 repetitions at 0,85 m/s at the maximum possible speed with the optimal load to generate the maximum power. Linear transducers which have greater accuracy (5%) and reliability (ICC: 0.752; 95% CI: 0.548 - 0.855) compared to other devices in terms of velocity-based training (VBT) meas-urement.

    1 minute

Secondary Outcomes (3)

  • Scale of perceived effort during squat

    1 minute

  • Participant's rating of clinical change. Global Rating of Change Scale (GROC scale).

    1 minute

  • Muscle Activity

    1 minute

Study Arms (2)

Vibration group

EXPERIMENTAL

The vibration group receives an intervention with focal vibration heads from Wintecare on the rectus femoris, vastus lateralis and vastus medialis , at the same time that the athelte is doing active muscle contractions.

Other: Focal Vibration

Sham group

SHAM COMPARATOR

The placebo group receives the same protocol but the head of the focal vibration machine is not in contact with the patient's skin.

Other: Sham focal vibration

Interventions

Focal vibration is a 3x3 electrode placed on the athlete's muscle belly, and emits a high frequency vibration (150Hz) to stimulate the muscle spindle and generate greater muscle activation.

Also known as: Local Vibration
Vibration group

Is a focal vibration intervention but without conctact in the athelte's skin. Doing this we got a sham therapy

Sham group

Eligibility Criteria

Age18 Years - 30 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Familiarity with the technique and practice of the weighted free squat.
  • Training at least 3 times per week.

You may not qualify if:

  • Volunteers who have suffered a sports injury during the last two months or are unable to perform physical activity.
  • Have previously received an intervention with focal vibration.
  • Not understanding the information provided by the therapist.
  • Participate in other research studies.
  • Be undergoing pharmacological medical treatment that may interfere with the measurements, such as treatment with anticonvulsants, antidepressants, etc.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Central Study Contacts

Max Canet Vintro PT

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Msc

Study Record Dates

First Submitted

July 25, 2024

First Posted

November 4, 2024

Study Start

November 5, 2024

Primary Completion

November 30, 2024

Study Completion

December 6, 2024

Last Updated

November 4, 2024

Record last verified: 2024-10