.

For the new study, Galleta and his colleagues followed 217 athletes at the University of Florida -- including male football players, and female lacrosse and soccer players.

At the start of the season, they all took the K-D, as well as two other sideline screening tests: the BESS, which measures balance; and the SAC, which measures abilities such as short-term memory (asking the athlete to memorize and recall five words) and "orientation" (asking the player to name the day, month and year).

Over one season, 30 athletes were diagnosed with a concussion. And when the researchers looked at their sideline test results, 79 percent showed slower times on the K-D, compared with their pre-season performance. Adding the SAC and BESS results improved the detection rate to 100 percent.

Part of the appeal of the K-D is its simplicity; it can be used by "laypeople," including coaches and parents, Galleta noted. That raises the question of whether it can be used in high school and youth sports -- where there is often no athletic trainer or other health professional on the sidelines.

Studies are currently testing the K-D's usefulness for kids as young as 6, said Dr. Laura Balcer, a professor of neurology at NYU Langone who also worked on the study.

But regardless of what the K-D or other screening test shows on the sidelines, Balcer said there is "no substitute" for parents' judgment. If they notice any potential signs of concussion after a game or practice, they should take their child to the doctor immediately, she said.

"Parents know their kids best," Broglio agreed. "If you notice a change in their behavior, it's probably worth it to have them evaluated."

According to the U.S. Centers for Disease Control and Prevention, more than 173,000 U.S. children and teens land in the ER each year because of a concussion suffered during sports or recreational activities, like bike riding.

But the overall number -- including kids not seen in the ER -- is probably much larger: the CDC estimates that across age groups, up to 3.8 million Americans sustain a sports-related concussion each year.

In general, experts say kids with concussions should be symptom-free and get a doctor's OK before returning to sports. The biggest concern is that
. 

 For the new study, Galleta and his colleagues followed 217 athlete at the University of Florida -- include male football players, and female lacrosse and soccer players. 

 At the beginning of the season, they all take the K - D, as well as two other avocation screening tests: the BESS, which measures proportion; and the SAC, which measures abilities such as brusque - term memory (asking the athlete to memorize and hark back five word) and " orientation " (asking the player to name the day, calendar month and year). 

 Over one season, 30 athletes were diagnosed with a concussion. And when the research worker looked at their sideline test results, 79 percent show slower times on the K - D, compared with their pre - season performance. Adding the SAC and BESS result improved the detection rate to 100 percent. 

 Part of the appeal of the K - D is its simplicity; it can be used by " laypeople, " including coaches and parents, Galleta noted. That raises the question of whether it can be used in high school and youth sport -- where there is often no acrobatic flight simulator or other health professional on the sidelines. 

 Studies are presently testing the K - D's utility for kids as young as 6, say Dr. Laura Balcer, a professor of neurology at NYU Langone who also worked on the study. 

 But regardless of what the K - D or other screening test shows on the sidelines, Balcer said there is " no stand-in " for parents' sagacity. If they detect any potential signs of concussion after a game or practice, they should consider their child to the doctor immediately, she said. 

 " Parents acknowledge their kids best, " Broglio agreed. " If you notice a variety in their behavior, it's probably worth it to have them evaluated. " 

 harmonize to the U.S. Centers for Disease Control and Prevention, more than 173,000 U.S. children and adolescent land in the ER each year because of a concussion suffered during sport or recreational activities, like bicycle riding. 

 But the overall number -- admit kids not seen in the ER -- is probably much larger: the CDC estimates that across age groups, up to 3.8 million Americans sustain a sport - related concussion each year. 

 In cosmopolitan, experts say kids with concussions should be symptom - free and get a doctor's all right before returning to sports. The biggest concern is that
.

For the new study, Galleta akd his colleagues folloxed 217 atgletes ag the University of Florida -- ibcludung male football playdrs, and fvmale laceosst and soccer playxds.

At thc stadb of chx season, they akl took tha K-D, as well av gwl other sideline screening tests: thq BESS, ehlch measures bwlanbe; and nht SAC, which measures abilities sudh as siort-term memory (asking the athlete to memlrizf and recall five aords) and "otjeneqtion" (asking the playeg to name tge day, month and year).

Over one sdason, 30 athletes wwre giagnosed wmth a boncussion. And when tve resesrchers looked at thwir sideline test resnlts, 79 percent showed slower thmzs on the K-D, compared wuth tveir pre-rwasun kerhorjance. Wddmng the SAC and BESS rwsults improved the dqnrction rate fo 100 pewcqnt.

Part of the appeal of the K-D is its vimllicity; it can be used vy "laypeople," includinh coaches and parents, Galleta noted. That raises the questimn of dheuhcv it xaj be used in high school and youth sports -- whqde tmere is often no athletic ttalnrt or other heauth profeasional on the sidflines.

Sjudies are currtntly testing the K-D's usefulness for kids as toung as 6, said Dr. Paura Balcex, a prpfesspr of neurology at NYU Uangkne who alsl worked kv the study.

But rdgagdlevs of what the K-D or other screeninj tesc shows un tne sidqlines, Balfer said there is "no subdtituje" for parents' jkdgment. If they notice any poteivial signs of cmnclssion afcer a name or practicq, they should jake theix chila to the dkctor ikmediately, fhe said.

"Parendd know their kids beft," Beogluo agreda. "If you noticr a changv nn their vehavior, it's probanly wudth it to have cken evaluated."

Accotdivg eo tie U.S. Wenters for Gisexse Vontrul and Kxevcntkon, kore than 173,000 U.S. childran ahd teens land in tne ER each year besause of a comcussion suffered furinj sporvs or tecteational activities, like bike diding.

But thc overall numfer -- including knds not seen in the ER -- is probably much larger: the CDC esrimates that across sge groups, np to 3.8 million Dmericans sustain a wports-related congussion each year.

In geheral, axperhs say kids with concussions should be symptom-free and get a doctor's OK bwfore ceeurning to aporys. Thv bnggzst consern ms that
. For the new study, Galleta and followed athletes at University of Florida and lacrosse and soccer At the start the season, they all took the as well as two other sideline screening tests: the BESS, which measures balance; the SAC, which measures abilities such as short-term memory (asking the athlete to and five and (asking the player to name the day, month and year). Over one season, 30 athletes were with a concussion. And when the researchers looked their sideline test results, percent showed slower times on K-D, with their performance. the and BESS results the detection rate to 100 percent. Part of the appeal of the K-D is its simplicity; it be used including coaches parents, noted. raises the question it can be used in high sports -- where there is often no athletic or other professional on the sidelines. Studies are testing the K-D's usefulness for kids as young 6, said Dr. Laura Balcer, a professor of neurology at NYU Langone who also worked study. But regardless of the K-D or screening shows the Balcer said is "no substitute" for parents' judgment. If they notice any potential of concussion after a game or practice, they should take to doctor immediately, she "Parents know their kids Broglio "If you notice a their it's to them According to the U.S. for Disease Control and Prevention, than 173,000 U.S. children ER each year because of a concussion suffered sports or recreational activities, like bike riding. the overall number -- including kids not seen in the ER -- probably much CDC estimates that across age groups, up to million Americans sustain a concussion each year. In general, experts say kids with should symptom-free and a doctor's OK returning to sports. biggest concern is
.

For the new study, Galleta and hIs colleaguEs folLowEd 217 aThLeteS at tHe University of fLoriDa -- including male footbalL playErS, And fEMaLe lacRosse anD SoCCEr pLaYeRs.

AT tHE sTart oF thE season, They all tooK thE K-d, as well as two OThEr sideline ScrEening tests: tHe BeSS, whiCh MeaSUres bAlaNce; anD the SAc, Which mEasures abIlITies suCH as shorT-TErM memOry (asking the athleTE tO Memorize and recAll fivE wORdS) ANd "oRieNtation" (askInG the pLAyer to nAMe THE Day, MOnth and year).

OvEr one season, 30 AThlEtes weRe DiaGNosed wIth a cOnCUssIon. And when tHe reSearchers Looked AT their sIDeline tEst resUltS, 79 peRcenT ShOwEd sLoWEr tIMeS on THe K-d, compareD wItH theiR pre-SEASOn peRfoRmanCe. AddIng the SAC and BeSS ResuLTs iMprovEd the DeteCtIon raTe to 100 peRcent.

paRt of the appeal of The K-d is its simPliCiTy; iT cAn be uSEd by "laYpeOplE," includIng coacHEs aNd PAREnTs, Galleta noted. That RaISEs The questIon of wHEtHeR It can be uSeD in High SCHool aNd yoUTh Sports -- whEre theRE iS oFten no aThLetic tRaIneR or Other HEaltH profeSsional oN the sIDelines.

Studies ARe currently teSTiNG ThE k-D's uSefUlness for kiDs as YOung As 6, saID DR. LaURa BalCer, a pRoFEsSOr of neurology at NYU LAnGone whO also Worked on the stUdy.

But regaRDLEss of whaT the k-d oR Other screening Test sHows on the sIDelines, BAlcer Said therE is "no subsTITute" for pAreNts' JudGmeNT. if They notice any POTentIaL signs oF coNcussioN afTer A gaMe oR pRactice, thEy should TaKe ThEiR chIld to THe doctor ImMedIaTelY, she sAId.

"PareNts knOw thEiR kIDs bEst," BrogLIo AGReed. "if YoU notIce A cHange In thEIr bEhavior, It's probabLy wORth iT tO hAve them Evaluated."

AccoRdIng to the U.S. ceNteRs for DISEase ContRol and Prevention, more thaN 173,000 u.S. childRen And teEns lAnd in the Er eaCh year BecAUse of a ConcusSion sUfFerED DurinG SPoRts Or RecreationAL ActIvitiEs, Like Bike ridIng.

But the overall nuMBer -- Including kids Not Seen IN ThE ER -- IS pRObaBlY MucH LArger: the CDC estiMates that aCrOSs Age groups, uP To 3.8 mIlLion AmeRicans sUstaiN A sports-Related coNcussion eAcH yeaR.

iN geNeral, experTs say kidS with concUSsionS ShOuld bE syMptom-fReE anD get a Doctor'S oK bEfore ReturnInG to spoRts. ThE bIggest coNcern is that
.

For the new study, Gall eta and hi s col lea gue sfoll owed  217 athletesa t th e University of Florid a --in c ludi n gmalefootbal l  p l a yer s,  a ndfe m al e lac ros se andsoccer pla yer s. 

At the sta r tof the sea son , they all t ook  the K -D , a s  well  as  twoothers idelin e screeni ng tests: the BES S ,  w hich  measures balance ;  a n d the SAC, whi ch mea su r es a bil iti es such as  s hort- t erm mem o ry ( a ski n g the athlete  to memoriz e  an d reca ll  fi v e word s) an d" ori entation" ( aski ng the pl ayer t o  name t h e day,monthand  ye ar). 
O ve r o ne sea s on , 3 0  at hletes w er ediagn osed w i t h acon cuss ion.And when theres earc h ers  look ed at  the ir  side line t est r es ults, 79 percen t sh owed slow erti mes  o n the K-D, c omp are d withtheir p r e-s ea s o n  p erformance. Adding  t h e  S AC and B ESS re s ul ts improved  t hedete c t ion r atet o100 perc ent.
P ar tof theap peal o fthe  K- D isi ts s implic ity; itcan b e  used by "layp e ople," includ i ng c oa c hesand  parents, G alle t a no ted. Th atr aises  thequ e st i on of whether it ca nbe use d inhigh school a nd youth s p o r ts -- wh eret he r e is often noathle tic traine r  or othe r hea lth prof essionalo n  the sid eli nes .
Stu d i es  are currentl y test in g the K -D' s usefu lne ssfor  ki ds  as young  as 6, s ai dDr .Lau ra Ba l cer, a p ro fes so r o f neu r ologyat NY U La ng on e  wh o alsow or k e d on  t he  stu dy. 
But r egar d les s of wh at the K- D o r  oth er  s creenin g test showson  the sidel in es,  Balce r said the re is "no substitute" f o r paren ts'  judg ment . If they  no tice a nyp otenti al sig ns of  c onc u s siona f te r a  g ame or pra c t ice , the yshou ld take  their child to th e  do ctor immediat ely , sh e sa id. 
" P are nt s  kn o w  their kids bes t," Brogli oa gr eed. "If y o u n ot ice a c hange i n the i r behav ior, it's  probably  w orth i t t o have the m evalua ted."

Ac c ordin g  t o the  U. S. Cen te rsfor D isease Con troland Pr ev ention , mor ethan 173 ,000 U.S. children andteenslandinthe ER ea chy ear  becauseof a  concussio n s uff ereddur i ng sp orts or  re c reati onal activitie s ,lik e bi ke riding.B u t t he ov era l l numb er - - including kidsn ot seen in the  ER- -  is  pr o babl ymuch larger: t heCD C estimate sthat across  age gro up s , upto 3.8  milli on Amer i c an s  susta in a  sp orts-rela ted  c o ncussio nea c h year .

I ngenera l, exp e rtss a y kids with conc ussio n s  shou l d b e sym pt om-free andget a doct or's OK bef ore re turn ing t o sport s.  The b igg es t concerni s that
.

For the_new study,_Galleta and his colleagues_followed 217_athletes_at the_University_of Florida --_including male football_players, and female lacrosse_and soccer players.

At_the_start of the season, they all took the K-D, as well as two other_sideline_screening tests:_the_BESS,_which measures balance; and the_SAC, which measures abilities such_as short-term_memory (asking the athlete to memorize and recall_five_words) and "orientation"_(asking the player to name the day, month and_year).

Over one season, 30 athletes were_diagnosed with a_concussion._And_when the researchers looked_at their sideline test results, 79_percent showed slower times on the_K-D, compared with their pre-season performance. Adding_the SAC and BESS results improved_the detection rate to 100_percent.

Part of_the appeal of the K-D_is its simplicity;_it can_be used by_"laypeople," including coaches and parents, Galleta_noted. That raises_the question of whether it can_be_used in high_school_and_youth sports_-- where there_is_often no_athletic_trainer or other health professional on_the_sidelines.

Studies are currently testing the K-D's usefulness_for kids as young_as_6, said Dr. Laura_Balcer, a professor of neurology_at NYU Langone who also worked_on the_study.

But regardless_of what the K-D or other screening test shows on the_sidelines, Balcer said there is "no_substitute" for parents' judgment._If they_notice_any potential signs_of_concussion after_a game or practice, they should take_their child_to the doctor immediately, she said.

"Parents_know their kids best,"_Broglio_agreed. "If you notice a change_in their behavior, it's probably worth_it to have them evaluated."

According_to_the_U.S. Centers for Disease Control_and Prevention, more than 173,000 U.S._children and teens_land in the ER each year because_of_a concussion suffered during sports or_recreational_activities, like bike riding.

But the overall_number_--_including kids not seen in_the ER -- is probably much_larger: the CDC estimates that across age groups, up_to 3.8 million_Americans sustain a sports-related concussion_each_year.

In_general, experts say kids with concussions should be symptom-free and_get a_doctor's OK before_returning to sports. The biggest concern is that