Validation of HeadCount-2w for estimation of two-week heading: Comparison to daily reporting in adult amateur player

Michael L. Lipton, Chloe Ifrah, Walter F. Stewart, Roman Fleysher, Martin J. Sliwinski, Mimi Kim, Richard B. Lipton

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Objectives: To validate the HeadCount-2w questionnaire for estimation of 2-week soccer heading by comparison to daily electronic diary reporting over the same two-week period. Design: Prospective observational study. Methods: Adult amateur soccer players completed HeadCount-daily, comprising 14 daily at-home assessments of soccer play and heading via a tablet PC. Following the 14 day period, players completed HeadCount-2w, a web-based two-week-recall questionnaire on soccer and heading. intraclass correlation coefficient (ICC) was estimated between HeadCount-daily, the reference standard, and HeadCount-2w estimates of heading during the same 2-week period. Results: 53 participants (38 men) reported a mean of 24.36 (median = 11.76) headers during 2 weeks via HeadCount-daily and a mean of 38.34 (median = 15.0) headers for the same 2 weeks via HeadCount-2w. The ICC comparing 2-week heading from HeadCount-daily and HeadCount-2w was 0.85. Linear regression of the log-transformed Headcount-daily on HeadCount-2w data yielded a slope of 0.71 (p < 0.001; 95% CI 0.54–0.82), suggesting that heading tends to be over-estimated by HeadCount-2w relative to HeadCount-daily. Slope estimates for men (0.65) and women (0.71) were similar. Conclusions: HeadCount, a self-administered web-based survey, is valid for self-reporting 2-week heading in adult amateur players, supporting its use in future research and as a simple and low-cost technique for exposure monitoring.

Original languageEnglish (US)
Pages (from-to)363-367
Number of pages5
JournalJournal of Science and Medicine in Sport
Volume21
Issue number4
DOIs
StatePublished - Apr 2018

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Soccer
Tablets
Observational Studies
Linear Models
Prospective Studies
Costs and Cost Analysis
Surveys and Questionnaires

All Science Journal Classification (ASJC) codes

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

Cite this

Lipton, Michael L. ; Ifrah, Chloe ; Stewart, Walter F. ; Fleysher, Roman ; Sliwinski, Martin J. ; Kim, Mimi ; Lipton, Richard B. / Validation of HeadCount-2w for estimation of two-week heading : Comparison to daily reporting in adult amateur player. In: Journal of Science and Medicine in Sport. 2018 ; Vol. 21, No. 4. pp. 363-367.
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title = "Validation of HeadCount-2w for estimation of two-week heading: Comparison to daily reporting in adult amateur player",
abstract = "Objectives: To validate the HeadCount-2w questionnaire for estimation of 2-week soccer heading by comparison to daily electronic diary reporting over the same two-week period. Design: Prospective observational study. Methods: Adult amateur soccer players completed HeadCount-daily, comprising 14 daily at-home assessments of soccer play and heading via a tablet PC. Following the 14 day period, players completed HeadCount-2w, a web-based two-week-recall questionnaire on soccer and heading. intraclass correlation coefficient (ICC) was estimated between HeadCount-daily, the reference standard, and HeadCount-2w estimates of heading during the same 2-week period. Results: 53 participants (38 men) reported a mean of 24.36 (median = 11.76) headers during 2 weeks via HeadCount-daily and a mean of 38.34 (median = 15.0) headers for the same 2 weeks via HeadCount-2w. The ICC comparing 2-week heading from HeadCount-daily and HeadCount-2w was 0.85. Linear regression of the log-transformed Headcount-daily on HeadCount-2w data yielded a slope of 0.71 (p < 0.001; 95{\%} CI 0.54–0.82), suggesting that heading tends to be over-estimated by HeadCount-2w relative to HeadCount-daily. Slope estimates for men (0.65) and women (0.71) were similar. Conclusions: HeadCount, a self-administered web-based survey, is valid for self-reporting 2-week heading in adult amateur players, supporting its use in future research and as a simple and low-cost technique for exposure monitoring.",
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Validation of HeadCount-2w for estimation of two-week heading : Comparison to daily reporting in adult amateur player. / Lipton, Michael L.; Ifrah, Chloe; Stewart, Walter F.; Fleysher, Roman; Sliwinski, Martin J.; Kim, Mimi; Lipton, Richard B.

In: Journal of Science and Medicine in Sport, Vol. 21, No. 4, 04.2018, p. 363-367.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Validation of HeadCount-2w for estimation of two-week heading

T2 - Comparison to daily reporting in adult amateur player

AU - Lipton, Michael L.

AU - Ifrah, Chloe

AU - Stewart, Walter F.

AU - Fleysher, Roman

AU - Sliwinski, Martin J.

AU - Kim, Mimi

AU - Lipton, Richard B.

PY - 2018/4

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N2 - Objectives: To validate the HeadCount-2w questionnaire for estimation of 2-week soccer heading by comparison to daily electronic diary reporting over the same two-week period. Design: Prospective observational study. Methods: Adult amateur soccer players completed HeadCount-daily, comprising 14 daily at-home assessments of soccer play and heading via a tablet PC. Following the 14 day period, players completed HeadCount-2w, a web-based two-week-recall questionnaire on soccer and heading. intraclass correlation coefficient (ICC) was estimated between HeadCount-daily, the reference standard, and HeadCount-2w estimates of heading during the same 2-week period. Results: 53 participants (38 men) reported a mean of 24.36 (median = 11.76) headers during 2 weeks via HeadCount-daily and a mean of 38.34 (median = 15.0) headers for the same 2 weeks via HeadCount-2w. The ICC comparing 2-week heading from HeadCount-daily and HeadCount-2w was 0.85. Linear regression of the log-transformed Headcount-daily on HeadCount-2w data yielded a slope of 0.71 (p < 0.001; 95% CI 0.54–0.82), suggesting that heading tends to be over-estimated by HeadCount-2w relative to HeadCount-daily. Slope estimates for men (0.65) and women (0.71) were similar. Conclusions: HeadCount, a self-administered web-based survey, is valid for self-reporting 2-week heading in adult amateur players, supporting its use in future research and as a simple and low-cost technique for exposure monitoring.

AB - Objectives: To validate the HeadCount-2w questionnaire for estimation of 2-week soccer heading by comparison to daily electronic diary reporting over the same two-week period. Design: Prospective observational study. Methods: Adult amateur soccer players completed HeadCount-daily, comprising 14 daily at-home assessments of soccer play and heading via a tablet PC. Following the 14 day period, players completed HeadCount-2w, a web-based two-week-recall questionnaire on soccer and heading. intraclass correlation coefficient (ICC) was estimated between HeadCount-daily, the reference standard, and HeadCount-2w estimates of heading during the same 2-week period. Results: 53 participants (38 men) reported a mean of 24.36 (median = 11.76) headers during 2 weeks via HeadCount-daily and a mean of 38.34 (median = 15.0) headers for the same 2 weeks via HeadCount-2w. The ICC comparing 2-week heading from HeadCount-daily and HeadCount-2w was 0.85. Linear regression of the log-transformed Headcount-daily on HeadCount-2w data yielded a slope of 0.71 (p < 0.001; 95% CI 0.54–0.82), suggesting that heading tends to be over-estimated by HeadCount-2w relative to HeadCount-daily. Slope estimates for men (0.65) and women (0.71) were similar. Conclusions: HeadCount, a self-administered web-based survey, is valid for self-reporting 2-week heading in adult amateur players, supporting its use in future research and as a simple and low-cost technique for exposure monitoring.

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