Injury Trends in a Japanese Collegiate American Football League, 2018-2024

The Tohoku Collegiate American Football League in Japan provides injury surveillance data from 2018 to 2023, with a post-intervention analysis for the 2024 season. This mixed-methods study by Yasuyuki Umezaki, last updated in April 2026, explores the impact of a data-feedback workshop on injury reporting and safety awareness. The dataset includes pre- and post-intervention questionnaire results and official injury reports.

Use Cases

• Analyze changes in injury type proportions, such as muscle cramps and head injuries, based on the pre-post ecological analysis described.
• Evaluate the association between data-driven feedback workshops and self-reported safety awareness among team representatives.
• Study injury rate trends per game in a regional collegiate sports league over a multi-year period.
• Assess the practical application of injury surveillance data dissemination for sports organizations with limited resources.

Strengths

• Includes injury data spanning six years from 2018 to 2023, plus the 2024 season for post-intervention analysis.
• Provides specific statistical results, such as an Incidence Rate Ratio of 1.22 for overall injury rate and p-values for changes in injury proportions.
• Released under a permissive CC-BY-4.0 license, facilitating reuse and sharing.

Limitations

• The study design is described as non-randomized and uncontrolled, which limits causal inference.
• The post-intervention sample size is noted as small, with only a single season (2024) of follow-up data.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Yasuyuki Umezaki via figshare

Collection Method

Mixed-methods study comprising a cross-sectional survey and a pre-post ecological analysis of official injury reports.

Time Range

2018 to 2024

Freshness

Last updated 2026-04-30 05:39:46; freshness should be verified.

Geography

Tohoku Collegiate American Football League, Japan