ST. LOUIS, Mo. (CBS Local) - A St. Louis woman with cerebral palsy has gone viral after video of her inspirational CrossFit workout was posted by her trainer. Tiffany Eickhoff does tire pulls, burpees ...
The high-intensity, multi-joint movements in CrossFit may help you gain muscle strength and stamina. Adding additional weight to your workouts can further increase muscle gain by adding stress to your ...