Fitness - All Articles

Common Questions & Answers
Fitness refers to what your body can do, including your muscle strength and how quickly you can move. Exercise, on the other hand, refers to organized and intentional physical activity, such as brisk walking, cycling, strength training, and stretching, all of which can improve your fitness level.
Exercise is a healthy habit. Its short-term benefits include a brighter mood and better sleep. In the long term, regular exercise can lower your risk of chronic diseases such as dementia, type 2 diabetes, heart disease, and cancer.
The five components of physical fitness are: cardiorespiratory fitness (measured by VO2 max), musculoskeletal fitness (including muscle strength), flexibility, balance, and speed.

Kara Andrew, RDN, LDN
Medical Reviewer
Kara Andrew, RDN, LDN, is?the director of health promotion for?Memorial Hospital?in Carthage, Illinois.?She is also licensed as an exercise physiologist and certified in lifestyle medicine by the American College of Lifestyle Medicine. Her experience includes corporate wellness, teaching for the American College of Sports Medicine, sports nutrition, weight management, integrative medicine, oncology support, and dialysis.
She earned her master's in exercise and nutrition science at Lipscomb University.
Andrew has served as a president and board member of the Nashville Academy of Nutrition and Dietetics.?She was recently elected a co-chair of the fitness and medicine group in the American College of Lifestyle Medicine.

Kara Andrew, RDN, LDN
Medical Reviewer
Kara Andrew, RDN, LDN, is?the director of health promotion for?Memorial Hospital?in Carthage, Illinois.?She is also licensed as an exercise physiologist and certified in lifestyle medicine by the American College of Lifestyle Medicine. Her experience includes corporate wellness, teaching for the American College of Sports Medicine, sports nutrition, weight management, integrative medicine, oncology support, and dialysis.
She earned her master's in exercise and nutrition science at Lipscomb University.
Andrew has served as a president and board member of the Nashville Academy of Nutrition and Dietetics.?She was recently elected a co-chair of the fitness and medicine group in the American College of Lifestyle Medicine.
- Caspersen CJ et al. Physical Activity, Exercise, and Physical Fitness: Definitions and Distinctions for Health-Related Research. Public Health Reports. March–April 1985.
- Health Benefits of Exercise and Physical Activity. National Institute on Aging.
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