The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial registered on ANZCTR


Registration number
ACTRN12612000075886
Ethics application status
Approved
Date submitted
16/01/2012
Date registered
16/01/2012
Date last updated
12/07/2018
Type of registration
Prospectively registered

Titles & IDs
Public title
The acute effects of whole body vibration on sprinting gait
Scientific title
The acute effects of whole body vibration on sprinting gait in sub-elite and national level athletes
Secondary ID [1] 279716 0
Nil
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Running performance 285554 0
Condition category
Condition code
Other 285746 285746 0 0
Research that is not of generic health relevance and not applicable to specific health categories listed above

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Participants will complete 6 x 40m sprints with an approximate two minute interval between sprints, following a warm-up consisting of 10 x 1 minute bouts of whole-body vibration, on a Galileo vibration plate set at 26Hz and 4.5mm amplitude, with a 30 second rest between bouts or a traditional dynamic warm-up. This is a randomised crossover study and following a washout of 1 week, participants will complete the sprinting session following the alternate warm-up intervention.
Intervention code [1] 284015 0
Other interventions
Comparator / control treatment
15 minutes of dynamic stretching as per a usual traditional warm-up routine completed immediately prior to a sprinting performance evaluation session.
Control group
Active

Outcomes
Primary outcome [1] 286271 0
Reaction time using an instrummented starting block
Timepoint [1] 286271 0
Immeadiately following the warm-up intervention
Primary outcome [2] 286272 0
Running pattern using a 2D motion anlysis system
Timepoint [2] 286272 0
Immeadiately following the warm-up intervention
Primary outcome [3] 286273 0
Speed measured through timing duration of sprint using timing gates
Timepoint [3] 286273 0
Immeadiately following the warm-up intervention
Secondary outcome [1] 295486 0
Running gait using a 3D Vicon Motion Measurement System
Timepoint [1] 295486 0
Immeadiately following the warm-up intervention
Secondary outcome [2] 295487 0
Muscle activity using electromyography while running
Timepoint [2] 295487 0
Immeadiately following the warm-up intervention

Eligibility
Key inclusion criteria
Sub-elite or national level sprint athletes
Minimum age
18 Years
Maximum age
30 Years
Gender
Both males and females
Can healthy volunteers participate?
Yes
Key exclusion criteria
Musculoskeletal condition that affects gait.

Study design
Purpose of the study
Educational / counselling / training
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Participants will be screened according to American College of Sports Medicine criteria and have all joints assessed for level of functioning. Once they have met the inclusion criteria, participants will be randomly allocated to complete either the intervention or control conditions first using a computer generated list, concealed using individual opaque envelopes and administered by an independent researcher.
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Randomisation sequencing will be achieved through a computer generated list stratified for gender to ensure that equal numbers of males and females will complete the conditions in the same order.
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?



Intervention assignment
Crossover
Other design features
There will be a week 'wash-out' for each participant prior to completing the alternate condition.
Phase
Not Applicable
Type of endpoint(s)
Efficacy
Statistical methods / analysis

Recruitment
Recruitment status
Stopped early
Data analysis
Data analysis is complete
Reason for early stopping/withdrawal
Participant recruitment difficulties
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
VIC
Recruitment postcode(s) [1] 23440 0
3083 - Bundoora

Funding & Sponsors
Funding source category [1] 284499 0
Self funded/Unfunded
Name [1] 284499 0
Nil
Address [1] 284499 0
Country [1] 284499 0
Primary sponsor type
Individual
Name
Assoc Prof Noel Lythgo
Address
RMIT University
PO Box 71
Bundoora, Victoria, 3083
Country
Australia
Secondary sponsor category [1] 283429 0
None
Name [1] 283429 0
Address [1] 283429 0
Country [1] 283429 0

Ethics approval
Ethics application status
Approved
Ethics committee name [1] 286481 0
RMIT University Human Research Ethics Committee
Ethics committee address [1] 286481 0
RMIT University
PO Box 71
Bundoora, Victoria, 3083
Ethics committee country [1] 286481 0
Australia
Date submitted for ethics approval [1] 286481 0
Approval date [1] 286481 0
21/12/2011
Ethics approval number [1] 286481 0
64/11

Summary
Brief summary
This research will investigate the acute effect of whole body vibration (WBV) on sprinting gait and sprint starts in a group of 30 sub-elite sprint athletes that compete in national level athletics championships (18 to 30 yrs). This is a randomised cross-over design with two warm-up treatments and a 7 day wash-out period. There are two stages in this project. In the first stage, participants will be randomly assigned to either a whole body vibration (WBV; n=15) or traditional warm-up modality (TRAD; n=15) for sprinting. Participants will complete the warm-up followed by 6 x 40 m sprints on an athletics track. After a 7 day wash-out period, the participants will repeat the sprint task with the other warm-up modality (cross-over). The following measures will be recorded: 1) reaction time and force production using an instrumented starting block; 2) running pattern using a 2-dimensional motion analysis system; and, 3) 5, 10, 20 and 40 m interval times using timing gates. The randomised cross-over design described above will be used in the second stage of this project to investigate the effect of warm-up modality on over-ground running patterns for steady-state running speeds ranging from 6 to 7 m/s. The patterns will be recorded by a 3-dimensional Vicon Motion Measurement system set up on a netball court in the Bundoora Netball and Sports Centre (BNASC).
Trial website
Trial related presentations / publications
Efficacy of Vibration Exercise as a Warm-up Modality for Overground Sprinting. International Journal of Exercise Science 8(4): 385-393, 2015
Public notes

Contacts
Principal investigator
Name 33623 0
A/Prof Noel Lythgo
Address 33623 0
RMIT University, Bundoora Campus PO Box 71 Bundoora, Victoria, 3083
Country 33623 0
Australia
Phone 33623 0
+61399256518
Fax 33623 0
Email 33623 0
noel.lythgo@rmit.edu.au
Contact person for public queries
Name 16870 0
A/Prof Assoc Prof Noel Lythgo
Address 16870 0
RMIT University, Bundoora Campus
PO Box 71
Bundoora, Victoria, 3083
Country 16870 0
Australia
Phone 16870 0
+61399256518
Fax 16870 0
Email 16870 0
noel.lythgo@rmit.edu.au
Contact person for scientific queries
Name 7798 0
A/Prof Assoc Prof Noel Lythgo
Address 7798 0
RMIT Unviersity, Bundoora Campus
PO Box 71
Bundoora, Victoria, 3083
Country 7798 0
Australia
Phone 7798 0
+61399256518
Fax 7798 0
Email 7798 0
noel.lythgo@rmit.edu.au

No information has been provided regarding IPD availability
Summary results
Have study results been published in a peer-reviewed journal?
Other publications
Have study results been made publicly available in another format?
Results – basic reporting
Results – plain English summary