Different sports have different requirements in terms of body composition. What is the proper body fat percentage for the average population versus that for athletes? read more

A slump is a prolonged stretch during which a hit can’t be found or even bought. read more

The ability to enter into a flow state of mind will help any runner overcome the psychological barriers associated with a race. With Running Flow, pioneering flow researcher Mihaly Csikszentmihalyi gives you tools and strategies for experiencing the power of flow. read more

Covering mat work and apparatus, Pilates is the most respected and comprehensive guide available. Exercises include photo sequences, level of difficulty ratings, recommended resistance ranges, and instructions and reasons for performing the movements. Many exercises include variations for increasing or decreasing the challenge. read more

Featuring full-color photos, step-by-step descriptions of exercises and fundamental boxing skills, and a DVD depicting workouts, variations, and training tips, this special package contains everything you need in order to burn calories, increase power and strength, sculpt muscles, and transform your body. read more

If it feels as if somebody has hit you over the head with a baseball bat or pinned your arm behind your back during the night, your sleeping posture is probably working against you. read more

Fitness experts and elite athletes Dean Hodgkin and Caroline Pearce provide you with your own personal training toolkit. You’ll discover the best methods for assessing your current fitness level, identifying physical strengths and deficiencies, setting and refining training goals and selecting and customizing the programs to make an immediate, lasting impact. read more

A unique, thought-provoking examination of the world’s most popular individual sport. Analyzing the latest research, studies, and player and performance trends, Tennisology explores the factors that affect training, competition, and on-court play. It’s a fascinating read for passionate players, coaches, and fans alike. read more

Get in the best shape of your running career with the help of Daniels’ Running Formula, the book that Runner’s World magazine calls the best training book. Premier running coach Jack Daniels provides you with his legendary VDOT formula to guide you through training at exactly the right intensity to run stronger, longer, and faster. read more

Best-selling author Hal Higdon offers a captivating account of the 2013 Boston Marathon from the unique vantage point of those running the race. Collected through social media messages and e-mails sent to the author, the stories of 75 runners are woven into a smooth-flowing narrative that captures both the triumph of marathon running and the tragedy of the bombing. read more