Introduction: Burnout syndrome has a negative impact on university students' health worldwide. Global prevalence of each dimension of the syndrome is estimated at 55.4% for emotional exhaustion, 31.6% for cynicism and 30.9% for academic inefficacy.
Objective: Evaluate the efficacy of physical exercise in reducing burnout levels in university students.
Methods: We carried out an investigation in students from the Technical University of Ambato, Ecuador. Students were in different career tracks, randomly selected, and were assigned to three different groups with pre-test and post-test measurements: two intervention groups (aerobic and strength exercise) and one control group (no exercise). The evaluation instrument was the Maslach Burnout Inventory-Student Survey, whose dimensions are exhaustion, cynicism and academic inefficacy. We also evaluated heart rate variability.
Results: The aerobic exercise group reduced cynicism by 21.1% (d = 0.252), inefficacy 13.1% (d = 0.397) and exhaustion by 31.0% (d = 0.532). The strength exercise group reduced cynicism by 27.4% (d = 0.315), inefficacy by 21.7% (d = 0.704) and exhaustion by 19.6% (d = 0.299). In the control group, exhaustion and inefficacy increased by 10.1% (d = 0.128) and 4.4% (d = 0.129) respectively; instead, cynicism was reduced by 7.3% (d = 0.062).The aerobic exercise group had the greatest increase in heart rate variability (at 16.8%), followed by the strength group (16.6%) and the control group (5.2%).
Conclusions: Physical exercise (both aerobic and strength) was effective in reducing burnout levels in university students.
Keywords: Ecuador; Exercise; burnout, professional; burnout, psychological; mental health.