title: Identification of interindividual and intraindividual movement patterns in handball players of varying expertise levels.
abstract: The authors examined the movement patterns of 5 left-handed handball players (ranging from beginner to national level) who threw a handball to different sections of a goal as if a goalkeeper were present. The authors used time-continuous, 3-dimensional kinematic data to assess interindividual movement patterns and considered participants' intraindividual differences relative to different targets. Cluster analysis yielded the highest assignment rates for level of expertise; a mean of 92% of trials was correctly assessed. The authors observed an interaction with expertise for the intraindividual movement patterns. Variability in the novice throwers was increased, whereas (a) advanced throwers experienced a period of stability, and (b) the expert thrower's variability was increased. The results indicate that random variability characterizes novice motor performance, whereas active functional variability may exemplify expert motor performance.
authors.affiliation: Institute for Sport Science, Westfälische Wilhelms-University Münster, Germany. joerg@schorer.eu
authors.forename: Jörg
authors.initials: J
authors.lastname: Schorer
authors.forename: Joseph
authors.initials: J
authors.lastname: Baker
authors.forename: Florian
authors.initials: F
authors.lastname: Fath
authors.forename: Thomas
authors.initials: T
authors.lastname: Jaitner
mesh_terms: D000293:Adolescent; D000328:Adult; D001696:Biomechanical Phenomena; D016000:Cluster Analysis; D005260:Female; D007839:Functional Laterality; D006801:Humans; D007206:Individuality; D008297:Male; D009048:Motor Skills / Q000502:physiology*; D009068:Movement / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology*; D015203:Reproducibility of Results; D013177:Sports / Q000523:psychology*