Reference chart of inspiratory muscle strength: a new tool to monitor the effect of pre-operative training.
OBJECTIVE
To develop a reference chart to monitor inspiratory muscle strength during pre-operative inspiratory muscle training for patients at high risk of developing postoperative pulmonary complications awaiting coronary artery bypass graft (CABG) surgery.


METHODS
Secondary data analysis using patients from the intervention arm of a randomised clinical trial.


METHODS
University medical centre.


METHODS
Patients at high risk of developing postoperative pulmonary complications awaiting CABG surgery.


METHODS
Patients performed inspiratory muscle training seven times per week for at least 2 weeks before surgery.


METHODS
Maximal inspiratory muscle strength.


RESULTS
A new reference chart was produced using a non-linear time trend model with a normal error structure.


CONCLUSIONS
The chart is a novel tool for monitoring the progress of inspiratory muscle training for physiotherapy practice. Wider use of this chart is recommended.
Netherlands Organisation for Applied Scientific Research TNO, Leiden, The Netherlands; University of Utrecht, Utrecht, The Netherlands. Electronic address: stef.vanbuuren@tno.nl.
S
S
van Buuren
Child Development and Exercise Centre, Division of Paediatrics, University Children's Hospital Utrecht, Utrecht, The Netherlands.
E H J
EH
Hulzebos
Department of Rehabilitation, Nursing Science and Sport, Rudolf Magnus Institute of Neurosciences, University Medical Centre Utrecht, Utrecht, The Netherlands.
K
K
Valkenet
Department of Rehabilitation, Nursing Science and Sport, Rudolf Magnus Institute of Neurosciences, University Medical Centre Utrecht, Utrecht, The Netherlands.
E
E
Lindeman
Netherlands Organisation for Applied Scientific Research TNO, Leiden, The Netherlands.
N L U
NL
van Meeteren
D000368:Aged; D001026:Coronary Artery Bypass / Q000534:rehabilitation*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D053580:Muscle Strength / Q000502:physiology*; D026741:Physical Therapy Modalities; D011183:Postoperative Complications / Q000517:prevention & control*; D012132:Respiratory Muscles / Q000502:physiology*; D012138:Respiratory Therapy / Q000379:methods*
CABG; Postoperative pulmonary complications; Pre-operative inspiratory muscle training; Randomised controlled trial