ulse ▁condu ction . ▁Ex er cis ing ▁and ▁performing ▁activities ▁of ▁daily ▁living ▁can ▁cause ▁a ▁significant ▁increase ▁in ▁body ▁temperature ▁in ▁individuals ▁with ▁MS , ▁especially ▁if ▁their ▁mechanical ▁efficiency ▁is ▁poor ▁due ▁to ▁the ▁use ▁of ▁mob ility ▁a ids , ▁at ax ia , ▁weak ness , ▁and ▁sp astic ity . ▁However , ▁exercise ▁has ▁been ▁shown ▁to ▁be ▁helpful ▁in ▁man aging ▁MS ▁sympt oms , ▁reducing ▁the ▁risk ▁of ▁com orb id ities , ▁and ▁prom oting ▁overall ▁well ness . ▁▁▁ ▁T aking ▁advantage ▁of ▁the ▁cool ing ▁properties ▁of ▁water ▁may ▁help ▁at ten uate ▁the ▁consequences ▁of ▁heat ▁sens itivity . ▁In ▁a ▁study ▁done ▁by ▁White ▁et ▁al . ▁( 2 0 0 0 ), ▁exercise ▁pre - co ol ing ▁via ▁lower ▁body ▁imm ersion ▁in ▁water ▁of ▁ 1 6 – 1 7   ° C ▁for ▁ 3 0 ▁minutes ▁allowed ▁heat ▁sensitive ▁individuals ▁with ▁MS ▁to ▁exercise ▁in ▁greater ▁comfort ▁and ▁with ▁fewer ▁side ▁effects ▁by ▁minim izing ▁body ▁temperature ▁increases ▁during ▁exercise . ▁H ydro ther apy ▁exercise ▁in ▁moder ately ▁cool ▁water ▁of ▁ 2 7 – 2 9   ° C ▁water ▁can ▁also ▁be ▁advantage ous ▁to ▁individuals ▁with ▁MS . ▁Tem per atures ▁lower ▁than ▁ 2 7   ° C ▁are ▁not ▁recommended ▁because ▁of ▁the ▁increased ▁risk ▁of ▁inv oking ▁sp astic ity . ▁ ▁History ▁ ▁This ▁phenomen on ▁was ▁first ▁described ▁by ▁Wilhelm ▁U h th off ▁in ▁