
The physical fitness indicators used under submaximal exercise tests, like heart rate, lactate and ventilatory thresholds ( Achten and Jeukendrup, 2003 Billat et al. A high RER indicates that carbohydrates are being predominantly used, whereas a low RER suggests lipid oxidation ( Simonson and DeFronzo, 1990 Pendergast et al. Accessed June 14, 2018.The Respiratory Exchange Ratio (RER) (CO 2 production/O 2 uptake) increase with the exercise intensity and measured under steady state conditions is commonly used to indirectly determine the relative contribution of carbohydrate and lipids to overall energy expenditure ( Simonson and DeFronzo, 1990 Pendergast et al. Mindfulness-based stress reduction for healthy individuals: A meta-analysis. Rochester, Minn.: Mayo Foundation for Medical Education and Research 2018. Effects of mindfulness exercises as stand-alone interventions on symptoms of anxiety and depression: Systematic review and meta-analysis. Building mindfulness bottom-up: Meditation in natural settings supports open monitoring and attention restoration. Washington, D.C.: American Psychological Association 2017. The Art and Science of Mindfulness: Integrating Mindfulness into Psychology and the Helping Professions.

Burlington, Mass.: Jones & Bartlett Learning 2018. In: Managing Stress: Principles and Strategies for Health and Well-being. Complementary and alternative treatments for anxiety symptoms and disorders: Physical, cognitive, and spiritual interventions. When you reach the end of your path, turn and continue walking, maintaining awareness of your sensations. Focus on the experience of walking, being aware of the sensations of standing and the subtle movements that keep your balance. Find a quiet place 10 to 20 feet in length, and begin to walk slowly. If physical sensations or thoughts interrupt your meditation, note the experience and then return your focus to your breath. Breathing through your nose, focus on your breath moving in and out of your body.

Sit comfortably with your back straight, feet flat on the floor and hands in your lap. Be aware of any sensations, emotions or thoughts associated with each part of your body. Focus your attention slowly and deliberately on each part of your body, in order, from toe to head or head to toe. Lie on your back with your legs extended and arms at your sides, palms facing up. You can also try more structured mindfulness exercises, such as:
