Considering a dropout rate of 10%, 18 participants
per arm will be required to achieve 90% power
(type II error of 0.10) with a type I error of 5%. Data will be
analysed using a 2- and 3-way repeated measures analysis
of variance (ANOVA) consisting of groups (INT1, INT2,
CON) and time (pre-test, post-test, follow-up). Bonferroni
post-hoc test will be used for statically significant (p < .05)
group and time differences. Associations between clinical
and biomechanical tests will be reported by their correlation
coefficient (r value), level of significance (p value)
and the amount of variance explained (r2 value).