9 9 6 ▁Par al ym pic ▁Games ▁having ▁a ▁greater ▁res embl ance ▁to ▁the ▁wheel ch airs ▁used ▁in ▁wheel ch air ▁basketball . ▁W heel ch airs ▁designs ▁also ▁allow ▁for ▁special is ations ▁between ▁def ensive ▁and ▁off ensive ▁positions ; ▁these ▁consist ▁mainly ▁of ▁added ▁components . ▁Off ensive ▁ch airs ▁often ▁have ▁shr oud s ▁to ▁make ▁it ▁harder ▁for ▁oppon ents ▁to ▁imp ede ▁them ▁and ▁the ▁design ▁of ▁def ensive ▁ch airs ▁allow ▁for ▁b ump ers ▁which ▁are ▁intended ▁to ▁imp ede ▁the ▁opposition . ▁ ▁Sho oting ▁ ▁Sho oting ▁is ▁a ▁test ▁of ▁both ▁accuracy ▁and ▁control . ▁Par al ym pic ▁shooting ▁events ▁involve ▁athlet es ▁with ▁physical ▁imp air ments ▁who ▁comp ete ▁in ▁rif le ▁and ▁p istol ▁events . ▁Dis abled ▁shoot ers ▁use ▁the ▁same ▁fire ar ms ▁and ▁cl othing ▁as ▁able - b od ied ▁shoot ers ▁however ▁adapt ations ▁to ▁equipment ▁are ▁allowed ▁to ▁accommod ate ▁for ▁dis abilities . ▁These ▁may ▁include ▁rif le ▁and ▁p istol ▁supports , ▁or ▁a ids ▁to ▁allow ▁for ▁vis ually ▁imp a ired ▁athlet es ▁to ▁aim . ▁Technology ▁changes ▁over ▁the ▁past ▁few ▁dec ades ▁have ▁allowed ▁for ▁vis ually ▁imp a ired ▁athlet es ▁to ▁comp ete ▁in ▁shooting ▁events . ▁These ▁athlet es ▁use ▁audio ▁signals ▁to ▁guide ▁them ▁in ▁their ▁aim ing , ▁with ▁variable ▁pitch ▁and ▁intensity ▁to ▁indicate ▁clos eness ▁to ▁the ▁target . ▁Systems ▁such ▁as ▁the ▁E co