Little data is known for changes in freestyle swimming performance across years for swimmers competing at national level [ 11] and no data exist for changes in swimming performance over time for other strokes such as breaststroke [ 14].
A relationship was shown to exist for change in ACL length with knee abduction (r = 0.91; p ≤ 0.001), with distraction (r = −0.70; p = 0.02 for relationship with compression), and with anterior tibial translation (r = 0.52; p = 0.01).
Similarly as with criterion validity, it was agreed that no gold standards exist for change scores on HR-PROs, with the exception of change on the original longer version of a HR-PRO that can be considered a gold standard, when it is compared to change on its shorter version.
It is against the preceding contextual backdrop that the study sought to analyse the power and linkage of key actors, map their positions (both in terms of how they framed the problem and their views on the solutions), determine whether a window of opportunity existed for change and inform strategic approaches to achieve this.
A trend exists for greater changes in consumption of sugar sweetened drinks (non-concentrated) and water as income rises and, conversely, greater changes in consumption of diet soft drinks (non-concentrated) and milk as income falls.
The analysis is shown to lead to an unprecedented result, namely that a unique point of load application exists for which changes to the stiffness layout have no impact on the moment distribution.
First, with the help of an analytical model of beams, it is shown that a clear pattern exists for the changes in the flexibility matrix produced due to the presence of cracks.
Much evidence exists for recent changes in pest and disease distributions (Bebber et al.
Clearly, however, the potential exists for unmitigated climate change to bring about a significant and hazardous riposte.
In addition, good evidence exists for other lifestyle-change interventions, i.e. weight loss through combined interventions improving nutrition and promoting increased physical activity, screening programs, i.e. pap-smear for cervical cancers and changes in household practices such as indoor cooking with open fires (9).
An advantage of the systems approach is that formal mathematical approaches exist for evaluating changes in the system itself (as in the time-varying transfer function method [ 73]), as well as the extension to multiple inputs or multiple outputs of the system.
