Steps to preventing type 2 diabetes: exercise, walk more, or sit less?

Area of Science:

• Lifestyle Medicine
• Public Health
• Exercise Physiology

Background:

• Contemporary lifestyle shifts have led to decreased non-exercise physical activity and increased sedentary behaviors.
• These changes may counteract the benefits of structured exercise for metabolic health.
• Current public health guidelines primarily focus on exercise, potentially neglecting the impact of overall daily activity.

Purpose of the Study:

• To highlight the impact of sedentary behavior on exercise efficacy.
• To propose revised public health recommendations addressing both exercise and sedentary time.
• To advocate for a comprehensive approach to physical activity for diabetes prevention.

Main Methods:

• Review of evidence on exercise, physical activity, and sedentary behavior.
• Analysis of societal trends in lifestyle behaviors.
• Formulation of evidence-based recommendations for physical activity and sedentary behavior.

Main Results:

• Adults should aim for an average of at least 7,500 steps per day.
• A minimum of 3,000 of these steps should be at a cadence of ≥100 steps/min (approx. 30 minutes).
• Breaking up prolonged sitting with regular bouts of ambulatory activity is recommended.

Conclusions:

• Public health messages need to evolve beyond structured exercise to include reducing sedentary time and increasing overall daily steps.
• A combined strategy of 'walk more, sit less, and exercise' is crucial for combating sedentary lifestyles and preventing Type 2 diabetes.
• Integrating recommendations for step count, cadence, and breaking up sitting time offers a practical framework for public health interventions.