Ergogenic aids are the external influences that can be determined to enhance performance in sports. These includes mechanical aids, pharmacological aids, physiological aids, nutritional aids and psychological aids.(i) Mechanical aids : It includes altitude training, Aqua training, uphill and downhill running, treadmills, weight training, clothing, Footwear, equipments etc. These are valid Ergogemic aids.(ii) Pharmacological aids : It includes anabolic steroid, Beta Blocker, Caffeine, protein supplements, Sodium bicarbonate. These are banned by IOC in sports.(iii) Physiological aids : It is like Acupuncture, Blood doping, creatine, Herbal medicines, Human Growth harmones, physiotherapy, sports massage, sauna etc. Many of these are banned by IOC in sports.(iv) Nutritional aids : They are like Bicarbonate of soda, caffeine, creative, sports drinks. Many of these are banned by IOC in sports.(v) Psychological Aids : These includes meditation, mootivation, cheering, Relaxation. Most of these are valid and applicable in sports.