Workability and productivity among CTL machine operators – associations with sleep, fitness, and shift work

Operational performance of fully mechanized cut-to-length (CTL) harvesting varies greatly due to the human factor i.e. machine operator. This study investigated how CTL operators’ workability index (WAI), personal lifestyle choices, seasons, and shift work affected operational performance. Research evaluated 14 volunteer operators for a longitudinal with continuous data collection productivity, activity level, sleep, follow-up on questionnaire fitness test every three months over year. The analyzed production 152 745.5 m3 timber combined self-tracking data. Operators’ relative productivity (Pr) had an increasing trend whilst WAI increased, thus seems well also forestry applications. Physical (VO2max) didn’t seem connect Pr only slightly when VO2max increased. participants slept longer in evening than morning (p < 0.000) consequently catching up their sleep deficit from period. Furthermore, higher value (SV) increased final fellings. results should be interest both practitioners researchers interested operations.