Word: jerk
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Dates: during 1904-1904
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...twentieth of the capacity of the lungs. The changes in the exercises are as follows: In test 1 and 2 the dynamometer is attached to a movable foot-rest, instead of, as formerly, to the floor. This prevents the possibility of raising the dynamometer needle by a sudden jerk. In tests 6 and 7 the legs must be kept straight and on a line with the trunk and no swaying is allowed...