Updated February 02, 2016. Older athletes have special exercise considerations due to the effects of aging on muscle and joint tissue, cardiovascular fitness, and other physical parameters. Use these training tactics to build and maintain your fitness as well as your ability to compete as you desire.
The English prefix non- , which means ânot,â appears in hundreds of English vocabulary words, such as non sense, non fat, and non returnable. You can remember that the prefix non-means ânotâ via the word non poisonous, for a substance that is non poisonous is ânotâ poisonous.
Word Origin and History for sine qua non Expand. an indispensable condition, Latin, literally without which not, from sine without (see sans) + qua ablative fem. singular of qui which (see who) + non not (see non-). Feminine to agree with implied causa.