ExRx.net is a resource for exercise professionals, trainers and fitness enthusiasts. It features exhaustive exercise libraries (over 1800 exercises), reference articles, fitness assessment calculators, and other helpful tools.

Under the Tools category you will find the exercise directory, workout templates, muscle directory, joint articulations and the fitness calculators.
In the Topics you will a lot of useful information ranging from diet and nutrition across psychology to guidance for exercise beginners, weight lifters, bodybuilders and more.
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