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Trial registered on ANZCTR


Registration number
ACTRN12616001406493
Ethics application status
Approved
Date submitted
27/09/2016
Date registered
10/10/2016
Date last updated
11/02/2019
Date data sharing statement initially provided
11/02/2019
Date results information initially provided
11/02/2019
Type of registration
Retrospectively registered

Titles & IDs
Public title
The effect of an eight week Bikram Yoga intervention on physiological attributes
Scientific title
Comparing the effect of an eight week Bikram Yoga intervention on physical, medical and psychological attributes of a group of healthy adults between 18-65, using a Pilates group and a sedentary group.
Secondary ID [1] 290223 0
Nil
Universal Trial Number (UTN)
U1111-1188-0510
Trial acronym
BYT
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Reduced mobility 300405 0
Poor balance 300406 0
Stress 300407 0
Elevated cholesterol 300408 0
Blood pressure 300409 0
Obesity 300410 0
Condition category
Condition code
Alternative and Complementary Medicine 300267 300267 0 0
Other alternative and complementary medicine
Musculoskeletal 300314 300314 0 0
Normal musculoskeletal and cartilage development and function

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Intervention 1
Participants will be of non-probability, convenience sampling based on eligibility on application. There will be eight weeks of thrice-weekly, group Bikram Yoga (90 minutes per session), carried out by a qualified Bikram Yoga teacher in a suitably designed hot Yoga studio, at 40 degrees C. (104 F). Classes involve standardised 26 sequential postures and 2 breathing exercises and will be taught by the same teacher. Attendance will be recorded in attendance register.

Intervention 2
Participants will be of non-probability, convenience sampling based on eligibility on application. There will be eight weeks of twice or thrice-weekly, group Pilates (90 minutes per session), carried out by a qualified Pilates teacher in a suitably designed Pilates studio. Normal room temperature will apply. Classes will insofar as possible include similar posture styles as in Bikram Yoga. Classes will be taught by the same teacher. Attendance will be recorded in attendance register.
Intervention code [1] 295996 0
Prevention
Intervention code [2] 295997 0
Rehabilitation
Intervention code [3] 295998 0
Lifestyle
Comparator / control treatment
A control group of sedentary, but otherwise healthy adults between 18-65 will be utilised. The control group will be offered participation in Bikram Yoga Classes, Hatha Yoga classes or fitness screening and exercise programs at an introductory rate similar to the other non-control participants.
Control group
Active

Outcomes
Primary outcome [1] 299744 0
Change in blood pressure as measured by sphygmomanometer.
Timepoint [1] 299744 0
Measured 7 days pre- or post- commencement of intervention and again, 7 days pre- or post- conclusion of intervention.
Primary outcome [2] 299745 0
Change in cholesterol level, measured using CardioChek blood test device.
Timepoint [2] 299745 0
Measured 7 days pre- or post- commencement of intervention and again, 7 days pre- or post- conclusion of intervention.
Primary outcome [3] 299748 0
Changes in stress level, measured by Perceived Stress Scale Test, PSS 10 Item.
Timepoint [3] 299748 0
Measured 7 days pre- or post- commencement of intervention and again, 7 days pre- or post- conclusion of intervention.
Secondary outcome [1] 327988 0
Changes in quality of life, using Quality of life (short form) 36 Item Test.
Timepoint [1] 327988 0
Measured 7 days pre- or post- commencement of intervention and again, 7 days pre- or post- conclusion of intervention.
Secondary outcome [2] 327989 0
Changes in mood, using Positive And Negative Affect Schedule (PANAS) Test.
Timepoint [2] 327989 0
Measured 7 days pre- or post- commencement of intervention and again, 7 days pre- or post- conclusion of intervention.
Secondary outcome [3] 327990 0
Changes in body weight, using Seca scales.
Timepoint [3] 327990 0
Measured 7 days pre- or post- commencement of intervention and again, 7 days pre- or post- conclusion of intervention.
Secondary outcome [4] 327991 0
Changes in static balance, using Stork Balance Test.
Timepoint [4] 327991 0
Measured 7 days pre- or post- commencement of intervention and again, 7 days pre- or post- conclusion of intervention.
Secondary outcome [5] 327992 0
Changes in dynamic balance, using y-balance reach test.
Timepoint [5] 327992 0
Measured 7 days pre- or post- commencement of intervention and again, 7 days pre- or post- conclusion of intervention.
Secondary outcome [6] 327993 0
Changes in body-fat, using Jackson/Pollock Four Point Body-fat Calculator.
Timepoint [6] 327993 0
Measured 7 days pre- or post- commencement of intervention and again, 7 days pre- or post- conclusion of intervention.
Secondary outcome [7] 327994 0
Changes in spine flexibility, measured by goniometer- flexion, extension and lateroflexion.
Timepoint [7] 327994 0
Measured 7 days pre- or post- commencement of intervention and again, 7 days pre- or post- conclusion of intervention.
Secondary outcome [8] 327995 0
Changes in knee flexibility, using goniometer- knee- standing knee flexion.
Timepoint [8] 327995 0
Measured 7 days pre- or post- commencement of intervention and again, 7 days pre- or post- conclusion of intervention.

Eligibility
Key inclusion criteria
Healthy adult.
In the case of the sedentary group, participants are eligible if not involved in organised or regular fitness/physical activities aimed at maintaining/improving health and have not been engaging in more than 150 minutes of moderate exercise weekly in the previous six months.
Minimum age
18 Years
Maximum age
65 Years
Gender
Both males and females
Can healthy volunteers participate?
Yes
Key exclusion criteria
Diagnosed medical conditions requiring current physical or drug therapy.

Study design
Purpose of the study
Prevention
Allocation to intervention
Non-randomised trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Allocation is not concealed.
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Who is / are masked / blinded?



Intervention assignment
Parallel
Other design features
Phase
Type of endpoint(s)
Safety/efficacy
Statistical methods / analysis
Sample size justified using the G*Power software (Version 3), with a = 0.05, effect size f= 0.25, in 3 groups. with 3 repetitions.

The data will be presented in mean +/- SD, and statistical analyses will be processed in the SPSS (V20) and Microsoft Excel. Two-way repeated measures analysis of variance (ANOVA) will be applied to examine the possible interaction between groups. As for statistical significance, the post-hoc Bonferroni test (p < 0.05) will be conducted to determine pair wise differences

Recruitment
Recruitment status
Completed
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 outside Australia
Country [1] 8265 0
Ireland
State/province [1] 8265 0
Leinster

Funding & Sponsors
Funding source category [1] 294588 0
University
Name [1] 294588 0
Universiti Malaya
Address [1] 294588 0
Jalan Universiti
50603 Kuala Lumpur
Wilayah Perseketuan Kuala Lumpur

Country [1] 294588 0
Malaysia
Primary sponsor type
University
Name
Universiti Malaya
Address
Jalan Universiti
50603 Kuala Lumpur
Wilayah Perseketuan Kuala Lumpur
Country
Malaysia
Secondary sponsor category [1] 293456 0
None
Name [1] 293456 0
Address [1] 293456 0
Country [1] 293456 0

Ethics approval
Ethics application status
Approved
Ethics committee name [1] 296029 0
Universiti Malaya Research Ethics Committee (UMREC)
Ethics committee address [1] 296029 0
Jalan Universiti
50603 Kuala Lumpur
Wilayah Perseketuan Kuala Lumpur
Ethics committee country [1] 296029 0
Malaysia
Date submitted for ethics approval [1] 296029 0
13/11/2014
Approval date [1] 296029 0
09/09/2015
Ethics approval number [1] 296029 0
UM. TNC 2/RC/H&E/UMREC

Summary
Brief summary
The purpose of this study is to validate or invalidate the claims made by the creator of Bikram Yoga regarding the efficacy of this type of yoga compared to other types. The efficacy is considered to be due to the application of heat. As the purpose is to determine the effects, no pre=determined assumptions have been made.

Three groups will take part- a Bikram group, a Pilates group and a sedentary group. The trial will run for eight weeks with tests before and after.

All three groups will undergo medical, psychological and physical pre-tests and post-tests.

Results will be compared across the three groups and a conclusion reached as to differences if any.
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 69290 0
Mr Vinnie Mark Hall
Address 69290 0
Sports Centre
Pusat Sukan
Jalan Universiti
50603 Kuala Lumpur
Wilayah Perseketuan Kuala Lumpur
Country 69290 0
Malaysia
Phone 69290 0
+60164360497
Fax 69290 0
Email 69290 0
vhall@siswa.um.edu.my
Contact person for public queries
Name 69291 0
Mr Vinnie Mark hall
Address 69291 0
Sports Centre
Pusat Sukan
Jalan Universiti
50603 Kuala Lumpur
Wilayah Perseketuan Kuala Lumpur
Country 69291 0
Malaysia
Phone 69291 0
+60164360497
Fax 69291 0
Email 69291 0
vhall@siswa.um.edu.my
Contact person for scientific queries
Name 69292 0
Mr Vinnie Mark Hall
Address 69292 0
Sports Centre
Pusat Sukan
Jalan Universiti
50603 Kuala Lumpur
Wilayah Perseketuan Kuala Lumpur
Country 69292 0
Malaysia
Phone 69292 0
+60164360497
Fax 69292 0
Email 69292 0
vhall@siswa.um.edu.my

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
Yes
What data in particular will be shared?
Once data analysis has been completed, data that is relevant to the outcome will be shared.
When will data be available (start and end dates)?
Since the data analysis is ongoing, and other deadlines are critcal, these dates have not been finalised.
Available to whom?
The decision on who it will be available to, will be made on a case by case basis.
Available for what types of analyses?
This decision will be made on a cse by case basis.
How or where can data be obtained?
Access will be subject to investigator's approval.
What supporting documents are/will be available?
No other documents available
Summary results
Have study results been published in a peer-reviewed journal?
No
Other publications
Have study results been made publicly available in another format?
No
Results – basic reporting
Results – plain English summary