Introduction to Sports Biomechanics: Analysing Human Movement ...

INTRODUCTION TO SPORTS BIOMECHANICS
Figure 1.29 Sidearm throw – the hammer throw. Top left: entry to turns; top right: first turn; middle left: second turn; middle
right: third turn; bottom left: fourth turn; bottom right: release.
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Sidearm throws
Sidearm throws are sometimes considered to differ from underarm and overarm throws,
mainly by restricted action at the shoulder joint. The dominant movement is rotation
of the pelvis and trunk with the arm abducted (see Box 1.2) to a position near the
horizontal. Unlike the other two throwing patterns, in which the movements are mainly
in the sagittal, or a diagonal, plane, frontal plane movements dominate in sidearm
throws. The discus throw and some shots in handball are of this type. The hammer