Comparing objective and subjective measures of sleep loss with balance performance in farmers

Research output: Contribution to specialist publicationArticle


This study aimed to investigate the ability of both subjective and objective sleep measures to predict balance difficulty in agricultural workers. Seven male farmers from rural Nebraska were analyzed for static balance performance following a bout of sleep. Actiwatches were used to measure objective sleep hours and subjective questionnaires, including the Epworth Sleepiness Scale and the Pittsburgh Sleep Quality Index, were used to measure subjective hours of sleep and sleep quality. The participants were observed for 12 sessions, with six in planting season and six in harvest season. Static balance testing consisted of measuring the area, total displacement, and maximum range in the anteroposterior and mediolateral directions of the individual's center of pressure with Tekscan pressure mats. Overall, it was found that objective measures had a higher correlation with the magnitude of balance deviations than subjective measures.

Original languageEnglish (US)
Number of pages8
Specialist publicationJournal of agricultural safety and health
StatePublished - 2021


  • Actiwatch
  • Agricultural worker
  • Injury
  • Sleep deprivation

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • General Agricultural and Biological Sciences
  • Public Health, Environmental and Occupational Health


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