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. 2026 Jul 8;17:1871218. doi: 10.3389/fphys.2026.1871218

Table 1.

Demographic and anthropometric characteristics of male participants (N = 12).

Characteristic (Unit) Mean ± SD Range
Age (years) 31.4 ± 4.6 24 - 42
Height (cm) 174.5 ± 6.2 165 - 186
Weight (kg) 73.2 ± 8.1 63 - 88
Body Mass Index (BMI) 23.9 ± 1.7 21.2 - 26.5
Tractor driving experience (years) 6.5 ± 2.3 3.5 - 12
Pittsburgh Sleep Quality Index (PSQI) score 3.1 ± 0.8 2 - 4
Resting heart rate (beats/min) 71.5 ± 5.2 64 - 82
Systolic blood pressure (mmHg) 118.4 ± 6.7 105 - 128
Diastolic blood pressure (mmHg) 76.2 ± 5.4 68 - 84