on cambered beaches throws the body out of alignment, while soft sand places extra stress on the Achilles tendon and calf muscles compared with firm, even surfaces, according to Medicine and Science in Sports and Exercise.To play it safe, stick
initial beach runs short, wearing shoes and avoiding deep, soft sand. However, working up to barefoot beach running and drills can build strength, he says.Beach running has its downsides, though. Running on cambered beaches throws the body out of alignment
