Physical Activity Guidelines for Americans: Top 10 Things to Know.

Science Daily: Fitness research news.

duvide Jump-rope Training: Techniques and workouts for jumping rope and ropeflow.

Coaching Science Abstracts: Professor Brent S. Rushall's abstract archives of sports science.

NASA Train Like an Astronaut: Physical Education Adapted Physical Activity Strategies

Building an Astronaut 'Core': A NASA Train Like An Astronaut Mission Handout – Instructor Guide (PDF)

Pocket: This Is What Happens to Your Body on a Thru-Hike.

Wiki.ezvid.com: Gym equipment recommendations.

SuppVersity: Nutrition and Exercise Science for Everyone. Articles based on scientific research.

Ask Dr Len Kravitz: Selected articles by exercise science professor at the University of New Mexico.

Shape Up America: exercises and fitness information.

HealthyNet: Strength training articles by Gregory L. Welch, M.S. and Wayne L. Westcott, Ph.D.

Turnstep: Search aerobics class patterns; body sculpting, cycling, box aerobics, step, abs, hi/lo floor, aqua, slide, etc.

Bal-A-Vis-X: Balance/auditory/vision rhythmic exercises demands cooperation, promotes self-challenge, and fosters peer teaching.

Medline: Exercise and physical fitness.

AnatomicallySpeaking.com Store: Posters, books, software, and tools for exercise professionals.