Whatever sport you participate in, trainers recommend using different essential oils, both pre- and post-workout. Before any workout or therapy, use a muscle rub, and then reapply post-workout. A hand massage with essential oil before or after an event can help relieve tension. Pre-workout, some runners like to use peppermint essential oil to clear their airways. Apply four to five drops to the chest five minutes before exercise or an event. Post-workout, place four drops of lemon into 16 ounces of water and drink, then apply lemongrass oil to calves. Also, try Siberian fir, wintergreen, and frankincense essential oils during post-workout for muscle tension.