Video Analysis Reliability Scores for Ski and Snowboard Cross Events

Björn Bruhin's study evaluates the inter- and intra-rater reliability of video analysis for injury-related events in winter sports. Four raters reviewed 644 situations from snowboard cross and ski cross footage, classifying them into categories like Crash and Time of no return. Reliability was assessed using Fleiss’ Kappa, Cronbach’s Alpha, and Cohen’s Kappa, with results published on figshare in April 2026.

Use Cases

• Benchmarking video analysis reliability metrics based on Fleiss’ Kappa and Cronbach’s Alpha scores
• Training classifiers for event detection in sports footage based on categories like Crash and Time of no return
• Developing standardized annotation protocols for sports injury research based on the study's methodology
• Comparing rater agreement for nuanced categories like Out of balance and Contact mentioned in the results

Strengths

• Includes 644 reviewed situations, providing a substantial sample for reliability analysis
• Uses multiple statistical measures (Fleiss’ Kappa, Cronbach’s Alpha, Cohen’s Kappa) for robustness
• Focuses on two specific winter sports disciplines: snowboard cross and ski cross

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data is presented as a PDF (1.7 MB), which may require extraction for direct analysis

Provenance

Source

Björn Bruhin

Collection Method

Systematic video analysis by a team of four raters reviewing footage

Freshness

Last updated 2026-04-09 05:20:05