2. Methodology
In both case studies method triangulation was used as the foundation of
the study designs, including a quantifying positivistic approach to
measure changes in clinical symptoms as a result of the interventions,
combined with a qualitative humanistic approach used to gain an
understanding of the cases’ subjective experiences of the interventions.
The quantitative data was gathered through clinical examination and
questionnaires, and the qualitative understanding was gathered through
the use of semi-structured interviews. Because of the volatile symptoms
of PCS, the interventions were designed as a cyclical process with the
intention of including cases by listening to their feedback and
adjusting protocols, if necessary, based on any potentially adverse
reactions. This design was inspired by Malterud’s research spiral which
is based on a continuous evaluation and defining of the problem and
intervention, thus preparing researchers to be adaptable and increase
transferability to the rehabilitation.40,41