The effect of inspiratory muscle training intensities on pulmonary function and exercise capacity in healthy subjects

ISRCTN	ISRCTN26277638
DOI	https://doi.org/10.1186/ISRCTN26277638
Protocol serial number	0622839
Sponsor	Cardiff University (UK)
Funder	Physiotherapy Research Foundation (UK) - Chartered Society of Physiotherapy (ref: PRF/97/5)

Submission date: 11/05/2009
Registration date: 15/07/2009
Last edited: 15/08/2011

Recruitment status: No longer recruiting
Overall study status: Completed
Condition category: Other

Prospectively registered

Protocol

Statistical analysis plan

Results

Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Stephanie Enright
Scientific

Deapartment of Physiotherapy
School of health Care Studies
Cardiff University
Cardiff
CF14 4XN
United Kingdom

Phone	+44 (0)29 2068 7558
Email	enrights@cardiff.ac.uk

Study information

Primary study design	Interventional
Study design	Randomised controlled trial
Secondary study design	Randomised controlled trial
Study type	Participant information sheet
Scientific title	The effect of inspiratory muscle training intensities on pulmonary function and exercise capacity in healthy subjects: a randomised controlled trial
Study objectives	Inspiratory muscle training performed at 80%, 60% and 40% of maximal intensity will result in changes in inspirator muscle function with 80% and 40% producing positive effects on exercise capacity and 80% producing positive effect on lung volumes.
Ethics approval(s)	School of Health Care Studies R&D Committee approved on the 27th August 2007 (ref: REG2707)
Health condition(s) or problem(s) studied	Pulmonary function, exercise capacity
Intervention	Intervention: inspiratory muscle training at 80%, 60%, 40% of maximum sustained inspiratory pressure. The training intervention was performed 3 times a week over an eight week period. Each training session took 30 minutes to complete. Control: no participation in any form of training throughout the duration of the study. The control group and the three training groups were assessed at the begining of the trial (the initial screening visit) and all measurements (excluding body composition) were repeated at the trial conclusion (at the end of an eight week training period for the three training groups and the control group).
Intervention type	Other
Primary outcome measure(s)	1. Lung volumes (vital capacity and total lung capacity) 2. Exercise capacity (cycle ergometry) 3. Inspiratory pressure Measurements were taken before the training intervention and then at the cessation of training (i.e., following the 8 weeks of training).
Key secondary outcome measure(s)	No secondary outcome measures
Completion date	09/05/2008

Eligibility

Participant type(s)	Patient
Age group	Adult
Lower age limit	18 Years
Sex	All
Target sample size at registration	40
Key inclusion criteria	Healthy, moderately trained subjects (aged 18 - 27 years, either sex). The rationale for the age range was so data could be compared to those obtained in a population of adults with cystic fibrosis.
Key exclusion criteria	Pre-existing respiratory disease
Date of first enrolment	04/02/2008
Date of final enrolment	09/05/2008

Locations

Countries of recruitment

United Kingdom
Wales

Study participating centre

Deapartment of Physiotherapy

Cardiff
CF14 4XN
United Kingdom

Results and Publications

Individual participant data (IPD) Intention to share	No
IPD sharing plan summary	Not provided at time of registration
IPD sharing plan

Study outputs

Output type	Details	Date created	Date added	Peer reviewed?	Patient-facing?
Results article	results	01/06/2011		Yes	No
Participant information sheet	Participant information sheet	11/11/2025	11/11/2025	No	Yes