Len Kravitz, PhD
Len Kravitz, PhD
Article Archive
In the 5th century BC, the physician Hippocrates stated: “All parts of the body, if used in moderation and exercised in labors to which each is accustomed, become thereby healthy and well developed and age slowly; but if they are unused and left idle, they become liable to disease, defective in growth and age quickly.”…
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Many clients enthusiastically participate in rotational sports, such as golf, baseball, softball, tennis, pickleball, hockey, lacrosse, handball and volleyball. As fitness professionals, one major goal is to help our clients perform more fluidly in their selected sport activities, while also providing training that helps protect them from injury. However, a traditional strength training program, with…
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What’s their secret? Why do Super Agers, people who live past 90, have such long lives? What can you do to live a longer, healthier life?
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Poor mental health is detrimental to the development and well-being of children. Can yoga for children help improve symptoms?
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Health statistics, risk factors and pathogenesis of osteoporosis, as well as exercise recommendations for improving bone health.
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This column explores why increasing client daily step count and walking speed is a worthwhile goal for all fitness professionals.
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Recent research points to effective new interventions when it comes to the relationship between metabolism and weight management.
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Studies show that HIFT (high-intensity functional training) can boost exercise enjoyment and adherence.
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Combining these modes of training to create a body-weight HIIT exercise program has proven benefits we’ll explore below.
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This article discusses the role of the glutes in normal function, defines its architecture, and presents several training techniques.
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Here’s a look at common medication groups, and recommendations for programming for exercise and medications.
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Exercise recommendations for people with disabilities like arthritis, hearing disabilities, visual impairments and intellectual disabilities.
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Now is the time to focus on developing new means of professional direction and income, and youth fitness is a worthy consideration.
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This article provides you with the evidence-based tools to help clients make a strong start in increasing muscular hypertrophy.
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This article will highlight 10 advanced resistance training techniques that improve muscular fitness, strength and mass.
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With the holidays often come new stressors. Family get-togethers, shopping, decorating, gift buying and wrapping, cooking and baking, and attending special activities can place extra demands on clients and lead to stress.
Here are 10 holiday stress coping strategies from the Mayo Clinic:
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We all intuitively understand the growing and widespread impact of stress on mental health, but stress physiology is just as deleterious.
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Share tips from women’s health research with clients to help them address anxiety disorders and menopause through movement.
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Researchers around the world have mapped out these great workouts and program designs with the most effective results.
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