Condition category
Not Applicable
Date applied
31/10/2017
Date assigned
05/11/2017
Last edited
03/11/2017
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Background and study aims
Despite debate regarding their effectiveness, many different recovery strategies are used by athletes after exercise. The aim of this unique study is to investigate the effects of five recovery strategies on indicators of performance, sit and reach flexibility, and perceptual recovery after fatiguing exercise in non-elite athletes.

Who can participate?
Healthy men aged 18-40

What does the study involve?
Participants undertake a simulated team-game fatiguing circuit followed by one of the following recovery strategies: cold water immersion (a cold bath), contrast water therapy (alternating between a cold bath and a hot bath), active recovery (jogging), a combined recovery of cold water and active recovery, or a control condition (sitting on a chair). Participants repeat this process for all five recovery strategies once per week. Before the fatiguing exercise, and at 1, 24 and 48 hours after, indicators of performance (repeated sprint ability and repeated countermovement jump), sit and reach flexibility, and perceptual recovery are assessed.

What are the possible benefits and risks of participating?
Participants are able to try different recovery strategies and find out how each recovery strategy affects their performance. Participants are informed on the most effective recovery strategy for them. There are risks of injury to the participant.

Where is the study run from?
James Cook University (Australia)

When is the study starting and how long is it expected to run for?
August 2012 to August 2014

Who is funding the study?
1. Australian Government Department of Education, Employment and Workplace Relations (Australia)
2. James Cook University (Australia)

Who is the main contact?
Fiona Crowther

Trial website

Contact information

Type

Scientific

Primary contact

Mrs Fiona Crowther

ORCID ID

Contact details

College of Healthcare Sciences
James Cook University
1 James Cook Drive
Douglas
Townsville
4811
Australia

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

N/A

Study information

Scientific title

Influence of recovery strategies upon performance and perceptions of healthy male recreational athletes following fatiguing exercise

Acronym

Study hypothesis

Water immersion strategies were hypothesised to be superior to active and the control for performance and perceptual indices of recovery over the 48-hour time period.

Ethics approval

Human Ethics Committee of James Cook University, 22/11/2013, ref: H5415

Study design

Single-centre randomised cross over trial

Primary study design

Interventional

Secondary study design

Randomised cross over trial

Trial setting

Other

Trial type

Other

Patient information sheet

Not available in web format, please use the contact details to request a patient information sheet

Condition

Performance and perceptual recovery from exercise

Intervention

Healthy male participants undertook a simulated team-game fatiguing circuit followed by one of the following recovery protocols undertaken for 14 min. A verified randomisation tool (random.org) was used for randomisation of recovery strategy order for participants. Testing was undertaken once per week. All participants were assigned to complete all 5 recovery strategies (five participants were unable to complete all scheduled testing sessions, due to external factors unrelated to testing; however their data were included for completeness in quantitative analysis of the completed recovery protocols).

1. Cold water immersion included being seated in an inflatable bath, with shoulders immersed at a temperature of 15°C
2. Contrast water immersion included alternating between a cold bath set to 15°C and a hot bath set to 38°C, both to shoulder immersion depth, with participants instructed to change baths every 1 min
3. Active recovery included outdoor jogging around a marked and measured grass track at 35% peak speed with continual feedback to maintain the desired speed
4. The combined recovery was performed as per the cold water immersion protocol with the addition of low intensity cyclic leg movement inside the cold bath
5. The control protocol involved participants passively sitting on a chair, with as little movement as possible

Prior to the fatiguing exercise and at 1, 24 and 48 hours post-exercise, perceptual, flexibility and performance measures were assessed.

Intervention type

Other

Phase

Drug names

Primary outcome measures

Measured on each initial testing day - there were 5 initial testing days (1 per recovery strategy), on these days the measures were assessed at baseline (when participants arrived) and 1 hr after the fatiguing exercise. These measures were then assessed at 24 and 48 hr post fatiguing exercise
1. Muscle soreness assessed using the muscle soreness scale, a 10-point Likert scale from 0 (no soreness) to 10 (very very sore) (Pointon & Duffield, 2012)
2. Total quality recovery (TQR) assessed using a scale that ranged from 6 (below very very poor recovery) to 20 (above very very good recovery) (Kenttä & Hassmén, 1998)
3. Flexibility assessed using the sit and reach test
4. Repeated sprint ability, assessed using a maximal 20 m sprint every 30 sec with six repetitions (Elias, Varley, Wyckelsma, McKenna, Minahan, & Aughey, 2012; Elias, Wyckelsma, Varley, McKenna, & Aughey, 2013)
5. Jump height and power measured using the countermovement jump test including five jumps of maximal height on a mat, one jump every 15 sec (Eias et al., 2012; King & Duffield, 2009)

Secondary outcome measures

1. Daily analysis of life demands, assessed using the DALDA questionnaire which lists a series of life-stress and symptoms of stress, where participants label each item with a letter; “a” means worse than normal, “b” means normal and “c” indicates better than normal (Rushall, 1990), assessed at the beginning of the testing day
2. Hydration status, assessed via urine specific gravity measurement with the use of a handheld refractometer. These measures were conducted when participants arrive on the initial testing day, and when they arrive for their 24 and 48 hr post testing session days
3. Heart rate monitored throughout the fatiguing exercise
4. Rating of perceived exertion, measured using Borg’s RPE (Borg, 1998) at the completion of the fatiguing exercise

Overall trial start date

01/08/2012

Overall trial end date

07/08/2014

Reason abandoned

Eligibility

Participant inclusion criteria

1. Uninjured
2. Males
3. Able to complete the fatiguing exercise
4. Participated in regular aerobic exercise
5. Aged 18-40 years

Participant type

Healthy volunteer

Age group

Adult

Gender

Male

Target number of participants

30

Participant exclusion criteria

1. Not elite athletes
2. Contact sport athletes

Recruitment start date

01/12/2013

Recruitment end date

01/05/2014

Locations

Countries of recruitment

Australia

Trial participating centre

James Cook University
4811

Sponsor information

Organisation

James Cook University

Sponsor details

1 James Cook Drive
Douglas
Townsville
4811
Australia

Sponsor type

University/education

Website

Funders

Funder type

University/education

Funder name

Australian Government Department of Education, Employment and Workplace Relations (ice bath purchase)

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Funder name

James Cook University

Alternative name(s)

JCU

Funding Body Type

private sector organisation

Funding Body Subtype

academic

Location

Australia

Results and Publications

Publication and dissemination plan

Planned publication in BMC Sports Science Medicine & Rehabilitation.

IPD sharing statement
The datasets generated during and/or analysed during the current study are/will be available upon request from Fiona Crowther.

Intention to publish date

31/12/2017

Participant level data

Available on request

Results - basic reporting

Publication summary

Publication citations

Additional files

Editorial Notes