Execution of the optimum technique is the basis of high-level performance i
n sport. Unfortunately, however, even well-established technique can be uni
ntentionally lost, with disastrous results for achievement. The present cas
e study describes the design, execution, and evaluation of an intervention
to aid the recovery of optimum technique in an elite javelin thrower. Using
contrast style drills, in association with mental skills to promote effect
ive learning, the intervention worked on critical performance factors ident
ified through three-dimensional kinematic analyses. Analysis of the perform
er's technique at a recent major championship provided a comparison of thes
e performance factors and, therefore, an evaluation of the effectiveness of
the intervention.