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weekender february 21 1987 p5 editors mail expert clears up misconception dear sir i am writing regarding a fitness article you published in the janu ary 31 1987 edition of the weeken der the article was entitled workout tips to the wise i am a certified fitness appraiser cfa who has worked in university athlete testing labs as well as numerous fitness cen tres i have also taught university students as well as cfa students in proper training techniques i feel that my experience as well as my present business of servicing equipment for fitness centres jus tifies me to take issue with your article i will not attempt to discuss the issue of nautilus training techni ques but i would feel better if i elaborate on the second para graph of your article more specifically you imply that equipment brands such as global zentec etc all work on similar principles as nautilus equipment i believe that you have fallen prey to the same mis conception that a lot of fitness pro fessionals have nautilus equipment is best de scribed as accurate variable re sistance essentially the machine adjusts the weight you lift in accordance with the strength of your muscle when your muscle is strong the machine provides more resist ance when your muscle is weak the machine provides less resist ance with the exception of certain global units the other equipment is constant resistance or at best innacurate variable resist ance the resistance may vary but not as required by the increasing or decreasing strength of the mus cle i must stress that in the array of equipment available very few are accurately variable in nature people throw words like iso kinetic omnikinetic isotonic isometric concentric eccentric pliometric and miometric around freely when discussing training equipment but i can hon estly say that very few people have taken the time to understand the differences in these terms your generalized statement that all the equipment work on similar principles is another testimony to this fact jim oneill cfa we love letters if you have a beef or want to pat someone on the back sit down and write a letter to the weekender deadline is noon thursday prior to publication names may be withheld on request at the dis cretion of the editor under no circumstances will anonymous letters be published the address is 9 heritage rd markham ontario l3p 1m3 8555 mccdwanrd marl l bo nam ol bwy 7 hettgc piaiar ed thins f new 5 glen camei just north of steeles east side of yohge luftiidcv fri saturday v1uurs io am 6 pm 10 am 9 pm 9 km- 6 pm hours sat mm place thornhill 76 ope 11 30am 3mj weight loss stays lost rxi diet center youll see fast results without gimmicks or drugs without special foods to buy without hunger and when those pounds and inches are gone they re gone your first personal consultation is absolutely free so please call right now 4714500 dieti center 254a main st n markham just north of the railroad tracks trte kno pwgsraaegfcc ftechcariotj to qumjt d6sigmaw service uadtplrt jixffj visit our showroom 4418 hwy 7 at kennedy upstairs saturday feb 28 8301200 noon take a sneak preview of our spring promotions tawionvms heating air conditioning 4791290 our installations are up to a standard not down to a price 03 see you at the markville shopping centres home show march 4th7th lower level