Obliques Abbreviation for external obliques, the muscles to either side of abdominals that rotate and flex the trunk.
Odd Lifts Exercises used in competition other than snatch and clean and jerk, such as squats, bench presses, and barbell curls.
Oestrogen Female sex hormone.
Olympic Lifts Two movements used in national and international Olympic competitions: the SNATCH and the CLEAN and JERK.
Olympic Set High quality, precision made set of weights used for competition. The bar is approximately 7' long. All moving parts have either brass bushings or bearings. Plates are machined for accurate weight.
Overload Principle Applying a greater load than normal to a muscle to increase its capability.
Obesity excessive body fat, 20% above average
Omega-3 fatty acids Polyunsaturated fatty acids found in fish oil; may contribute to the reduction of coronary artery disease
Organic Foods grown without synthetic fertilizer and produced without additives
Osteoporosis condition in which bones become brittle because there have been insufficient mineral deposits, especially calcium