NCT07558408

Brief Summary

Athletes often compete in the morning when they are biologically weaker; normally in competition heats or quarterfinals to qualify for the finals scheduled in the evening. Some athletes may even choose to perform at submaximal levels in these qualifying rounds, especially when they are expected to perform multiple times in the same day (such as weightlifting at the Olympic Games). Gross muscular performance such as power output or force production is greater in the evening than the morning (\~3-14% variation. Similarly, time-trial performance and repeated sprint performance (RSP) a good measure of performance in team sport) is \~3 and 5 % greater in the evening than the morning. To the best of our knowledge, no study has yet investigated combined effect of vibration technology after a warm-up or music of different frequencies during testing on cognitive and physiological performance. As a daily variation in muscle strength has been widely reported in a similar population the aims of the present study are to investigate if we can improve morning muscle performance by vibration technology after a warm-up or music of different frequencies during testing on cognitive and physiological performance.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
14

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Nov 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

November 17, 2025

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 19, 2025

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 27, 2026

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

April 14, 2026

Completed
16 days until next milestone

First Posted

Study publicly available on registry

April 30, 2026

Completed
Last Updated

April 30, 2026

Status Verified

April 1, 2026

Enrollment Period

1 month

First QC Date

April 14, 2026

Last Update Submit

April 23, 2026

Conditions

Keywords

MusicMorning strengthMorning cognitive performanceWBVWhole body vibration

Outcome Measures

Primary Outcomes (5)

  • Morning peak force production (N) measured via the Biodex Isometric MVC, with and without percutaneous stimulation.

    To assess the effect of music on morning peak force production (N) measured via the Biodex Isometric MVC, with and without percutaneous stimulation.

    From familiarisation to the final experimental session (~4 weeks)

  • Average and peak velocity

    Average and peak velocity, measure in meter per second (ms-1), for bench press and back squat at 40, 60 and 80% 1RM (maximum repetition). Body mass was factored into the back squat exercise, as this is a whole-body movement, but not into the bench press using the MuscleLab force-velocity linear encoder (Muscle Lab, Ergotest version 4010, Norway)

    From familiarisation to the final experimental session (~4 weeks)

  • Average force

    Average force, measured in Newtons (N) for bench press and back squat at 40, 60 and 80% 1RM (maximum repetition). Body mass was factored into the back squat exercise, as this is a whole-body movement, but not into the bench press using the MuscleLab force-velocity linear encoder (Muscle Lab, Ergotest version 4010, Norway)

    From familiarisation to the final experimental session (~4 weeks)

  • Average and peak power

    Average and peak power, measured in Watts (W) for bench press and back squat at 40, 60 and 80% 1RM (maximum repetition). Body mass was factored into the back squat exercise, as this is a whole-body movement, but not into the bench press using the MuscleLab force-velocity linear encoder (Muscle Lab, Ergotest version 4010, Norway)

    From familiarisation to the final experimental session (~4 weeks)

  • time to peak velocity and power

    time to peak velocity and power, measured in seconds (s) bench press and back squat at 40, 60 and 80% 1RM (maximum repetition). Body mass was factored into the back squat exercise, as this is a whole-body movement, but not into the bench press using the MuscleLab force-velocity linear encoder (Muscle Lab, Ergotest version 4010, Norway)

    From familiarisation to the final experimental session (~4 weeks)

Secondary Outcomes (2)

  • Morning Trail Making Test time to completion in seconds (TMT; parts A and B)

    From enrolment to last experimental session (4 weeks)

  • Morning Stroop word-color interference test

    From familiarisation to final experimental session (~4 weeks)

Other Outcomes (6)

  • Rectal and Skin Temperature

    From familiarisation to the final experimental session (~4 weeks)

  • Sleep questionnaires

    From familiarisation to the final experimental session (~4 weeks)

  • Habitual caffeine consumption

    Baseline

  • +3 more other outcomes

Study Arms (3)

Group 1

EXPERIMENTAL

i) NoMusic, ii) MUS, iii) MUS15, iv) Vibration, v) Vibration and Music

Other: Original MusicOther: Music interventionOther: ControlDevice: Whole-body vibrationDevice: Whole-body vibration and music

Group 2

EXPERIMENTAL

i) MUS15, ii) Vibration, iii) NoMusic, iv) Vibration and Music v) MUS

Other: Original MusicOther: Music interventionOther: ControlDevice: Whole-body vibrationDevice: Whole-body vibration and music

Group 3

EXPERIMENTAL

i)Vibration and music, ii) MUS, iii) MUS15, iv) NoMusic, v) Vibration

Other: Original MusicOther: Music interventionOther: ControlDevice: Whole-body vibrationDevice: Whole-body vibration and music

Interventions

\~20 Self-selected preferred "generally" motivational music between 110 to 130 bpm

Group 1Group 2Group 3

Same as 'Original Music' but time stretched by 15%

Group 1Group 2Group 3
ControlOTHER

No Music

Group 1Group 2Group 3

Whole body vibration, for 15 minutes at 60Hz

Group 1Group 2Group 3

Whole-body vibration for 15 minutes at 60Hz, plus Original music intervention during performance

Also known as: VIB+MUS
Group 1Group 2Group 3

Eligibility Criteria

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

You may qualify if:

  • Healthy adults
  • years old
  • Injury-free
  • ≥ 2 years of weight/strength training experience
  • Not receiving any pharmacological treatment (including non-steroidal anti-inflammatory drugs, NSAIDs) throughout the study period
  • Low habitual caffeine consumers (≤ 150mg per day)
  • No preference to training regarding time-of-day

You may not qualify if:

  • Depressed mood (from the Beck depression inventory)
  • Poor sleep quality (a Pittsburgh sleep quality index global score \>5
  • Recent shiftwork or travel across multiple time-zones
  • 'Extreme' chronotype (assessed via the Composite Morningness Questionnaire
  • Risk factors and/or symptoms of cardiovascular disease.
  • Minimal knowledge of the effects of time-of-day or time-since-sleep on human performance

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tom Reilly Building (LJMU)

Liverpool, Merseyside, L3 3AF, United Kingdom

Location

Related Publications (6)

  • DOI: 10.1111/j.1600-0838.2006.00586.x

    BACKGROUND
  • https://doi.org/10.2147/CIA.S30048

    BACKGROUND
  • DOI: 10.1111/sms.12979

    BACKGROUND
  • DOI: 10.1177/00315125211002406

    BACKGROUND
  • https://doi.org/10.3390/ jfmk6020033

    BACKGROUND
  • http://dx.doi.org/10.1037/bul0000216

    BACKGROUND

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Both researcher and participants did not know what of the two music was each
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: Double blinded counterbalanced design with three conditions
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Postgraduate Researcher

Study Record Dates

First Submitted

April 14, 2026

First Posted

April 30, 2026

Study Start

November 17, 2025

Primary Completion

December 19, 2025

Study Completion

February 27, 2026

Last Updated

April 30, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

IPD unavailable due to privacy or ethical restrictions

Locations