Baseball: Accuracy of qualitative analysis for assessment of skilled baseball pitching technique

Rochelle Nicholls, Bruce Elliott, Glenn Fleisig, Stephen Lyman, Edmund Osinski

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


Baseball pitching must be performed with correct technique if injuries are to be avoided and performance maximised. High‐speed video analysis is accepted as the most accurate and objective method for evaluation of baseball pitching mechanics. The aim of this research was to develop an equivalent qualitative analysis method for use with standard video equipment. A qualitative analysis protocol (QAP) was developed for 24 kinematic variables identified as important to pitching performance. Twenty male baseball pitchers were videotaped using 60 Hz camcorders, and their technique evaluated using the QAP, by two independent raters. Each pitcher was also assessed using a 6‐camera 200 Hz Motion Analysis system (MAS). Four QAP variables (22%) showed significant similarity with MAS results. Inter‐rater reliability showed agreement on 33% of QAP variables. It was concluded that a complete and accurate profile of an athlete's pitching mechanics cannot be made using the QAP in its current form, but it is possible such simple forms of biomechanical analysis could yield accurate results before 3‐D methods become obligatory.

Original languageEnglish
Pages (from-to)213-226
Number of pages14
JournalSports Biomechanics
Issue number2
Publication statusPublished - Jul 1 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation


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