Light exercise and stretching help to keep the breathing/heart rate elevated, ensuring blood flow to the muscles which helps convert the lactic acid to glucose, carbon dioxide and water to prevent muscle soreness
Sporting Example
Any sport or activity after vigorous exercise
Massage
Reduces inflammation of a tender area
Increases blood flow, so increases oxygen delivery to the muscles which helps the removal of lactic acid
Sporting Example
Games players may use an ice bath after an intense match to help recovery
Ice baths
Aid and repair micro tears in muscle fibres preventing DOMS
Reduce swelling of an injured area
When you get out an ice bath the warmer temperature dilates blood vessels which allows oxygenated blood to rush to the muscles removing lactic acid and other waste products
Carbohydrates
Foods high in carbohydrates should be consumed soon after exercise to replace glycogen stores
Rehydration
Water or isotonic drinks should be consumed before during and after vigorous exercise to replace fluids that are lost during exercise and prevent dizziness and nausea that are symptoms of dehydration