Overweight and Obesity in Australian Mining

Introduction: The mining industry has reported higher than population levels of overweight and obesity, with poor diets and physical inactivity largely attributable. Targeting these factors through coordinated workplace wellness initiatives could help mitigate this issue. Materials and methods: Participants at an open cut coal mine in NSW, Australia, completed a paper-based baseline survey. Subsequently a 12-week weight loss challenge was implemented, centred around diet and exercise. Different delivery modalities (PowerPoints, face to face talks, body composition scanning, handouts) were utilised, alongside competitive elements (weight loss leader board, prize winners) to drive participation. Follow-up data was collected 18-months after baseline. Results: Surveys were completed by 389 participants at baseline and 420 at follow up. Post intervention participants reported significantly increased levels of physical activity, number of times they participated in moderate and vigorous exercise, and number of days they participated in strength or toning activities. There was a reduction (although not statistically significant) in BMI and in bodyweight post intervention. However, weight loss of a 0.74 kg on average per participant is clinically significant, and substantial considering the impact of the COVID-19 global pandemic and global weight gain. Conclusions: Sedentary behaviours are a key contributor to increasing levels of overweight and obesity. Workplace wellness programs may prove efficacious in reducing sedentary behaviours, reducing overweight and obesity and improving employee general health.