Many people consider gardening a relaxing hobby but it’s also an athletic activity that requires muscle endurance, strength and flexibility. Because you’re pulling, pushing, bending and squatting the entire time, it’s like weight training without the dumbbells. So, if you start weeding without warming up, you’re bound to be sore later. To ward off aches and pains, you need to prepare your body the way you would for any strenuous activity.