Scientists Think the Way You Walk May Predict Alzheimer’s

Alzheimer’s has become an increasingly prevalent disease, and as such it’s one that many people have experienced on a personal level with their family members.

It can be difficult to notice when someone first starts to suffer from the condition, as the signs are fairly common side effects of aging, and even some doctors have failed to notice the beginning of the disease in their own immediate families.

Because early detection is so important that many scientists are invested in finding ways to identify and classify people who may be suffering from dementia early on.

In one study that came out of Newcastle University in September 2019, scientists discovered that “[w]alking may be a key clinical tool in helping medics accurately identify the specific type of dementia a patient has.”

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“The way we walk can reflect changes in thinking and memory that highlight problems in our brain, such as dementia,” Dr. Ríona McArdle, the researcher who led the study, said, according to Science Daily.

“Correctly identifying what type of dementia someone has is important for clinicians and researchers as it allows patients to be given the most appropriate treatment for their needs as soon as possible,” she said.

“The results from this study are exciting as they suggest that walking could be a useful tool to add to the diagnostic toolbox for dementia. It is a key development as a more accurate diagnosis means that we know that people are getting the right treatment, care and management for the dementia they have.”

Dr. James Pickett, head of research at the Alzheimer’s Society, added, “In this well conducted study we can see for the first time that the way we walk may provide clues which could help us distinguish between Alzheimer’s disease and Lewy body dementia.”

Results suggested that those with Alzheimer’s had more consistent walking patterns, while those with Lewy body dementia varied their step length and timing.

Not only can walking be used to differentiate between the two kinds of dementia, but researchers in Texas are finding that the way people walk may be able to indicate whether an individual might deal with Alzheimer’s in the future.

“What we are trying to understand is, by examining gait, will we be able to capture very, very early risk,” Dr. Mini Jacob at the Glenn Biggs Institute of UT Health San Antonio said, according to Ivanhoe.

“We hope to be able to identify the pathways — how is gait related to changes in the brain,” Jacob said. “And, hopefully, we’ll also come up with some interventions — preventive interventions.”

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Those working on the study hope to find “a system that measures … and predicts … those at increased risk” by analyzing a person’s “unique walking signature,” according to Ivanhoe.

The test involves a person walking across a gait mat while being asked to perform a simple cognitive task, such as listing various sorts of animals. Researchers believe that any resulting pauses or stumbles in gait while the person works on the thought task could indicate a predisposition to the disease or, at the very least, a cognitive decline.

“If I think I slowed down walking or almost have to stop. And then, if I concentrate on my walking, I cannot think,” one older gentleman, James Cogan, said. “Many times, I’m out there in my shop and I come in the house, and when I get inside, I say, ‘What did I come in here for?’”

Plenty of people without Alzheimer’s experience the phenomenon Cogan referenced, so more research will have to be done to see if this method can pinpoint the difference between general cognitive issues and specific forms of dementia.

We are committed to truth and accuracy in all of our journalism. Read our editorial standards.

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let wnhc_j = jQuery( '#wj-network-header-container' + ( window.innerWidth < 944 ? ', .jw-above-container.stuck:not( .never-stick ) .jw-sticky-container' : '' ) ).last(); let wnhc = wnhc_j.length ? wnhc_j.offset().top + wnhc_j.outerHeight() : 0; FFADS.debug( 'WNHC bottom is ' + wnhc ); let slide_units = document.querySelectorAll( '.sponsor > div.fixed-size.sliding > div' ); for( let i = 0; i < slide_units.length; i++ ) { FFADS.debug( 'checking margin for' ); FFADS.debug( slide_units[i] ); if( ! slide_units[i].firstElementChild ) break; this_unit_j = jQuery( slide_units[i] ); let max_margin = slide_units[i].parentElement.offsetHeight - slide_units[i].firstElementChild.offsetHeight; FFADS.debug( 'max margin is ' + max_margin ); let distance = wnhc - this_unit_j.parent().offset().top; if( distance > max_margin ) { slide_units[i].style.position = 'static'; slide_units[i].style.paddingTop = max_margin + 'px'; } else if( distance < 0 ) { slide_units[i].style.position = 'static'; slide_units[i].style.paddingTop = '0px'; } else if( slide_units[i].style.position != 'fixed' ) { slide_units[i].style.left = jQuery( slide_units[i].firstChild ).offset().left + 'px'; slide_units[i].style.position = 'fixed'; slide_units[i].style.paddingTop = '0px'; slide_units[i].style.top = jQuery( '#wpadminbar' ).outerHeight() + jQuery( '#wj-network-header-container' ).outerHeight() + ( window.innerWidth < 944 ? jQuery( '.jw-above-container.stuck:not( .never-stick ) .jw-sticky-container' ).outerHeight() : 0 ) + 'px'; } } for( let i = 0; i < FFADS.content_order.length; i++ ) { let ad_unit_id = FFADS.content_order[i]; let ad_unit = ad_unit_id.split( '_' )[0]; if( ! FFADS.units[ad_unit].repeating ) { if( checkAlmostVisible( document.getElementById( ad_unit_id ), FFADS.lazy_load_threshold ) ) { FFADS.debug( ad_unit_id + ' is almost visible' ); FFADS.content_order.splice( i, 1 ); // splice first in case render_ad fails FFADS.render_ad( ad_unit, ad_unit_id ); } else break; } else for( var j = 0; j < FF_REP_COUNT; j++ ) { let div_id = 'REP_' + j; if( ! FFADS.units[ad_unit].instances[div_id].displayed ) { if( checkAlmostVisible( document.getElementById( div_id ), FFADS.lazy_load_threshold ) ) { FFADS.debug( div_id + ' is almost visible' ); if( j == FF_REP_COUNT - 1 ) FFADS.content_order.splice( i, 1 ); // splice first in case render_ad fails FFADS.render_ad( ad_unit, div_id ); } else break; } } } if( typeof ffsid != 'undefined' && ! FFADS.spot_im_displayed && checkAlmostVisible( document.getElementById( 'respond' ), FFADS.lazy_load_threshold ) ) { var ffrespond = document.getElementById( 'respond' ); var simscript1 = document.createElement( 'script' ); var simscript2 = document.createElement( 'script' ); simscript1.async = simscript2.async = 'async'; simscript1.type = simscript2.type = 'text/javascript'; simscript1.src = 'https://recirculation.spot.im/spot/' + ffsid; simscript2.src = 'https://launcher.spot.im/spot/' + ffsid; simscript2.dataset.spotimModule = 'spotim-launcher'; simscript2.dataset.postUrl = simscript2.dataset.facebookUrl = ffsurl; simscript2.dataset.postId = ffspid; ffrespond.appendChild( simscript1 ); ffrespond.appendChild( simscript2 ); FFADS.spot_im_displayed = true; } if( window.innerWidth > 943 ) for( let i = 0; i < FFADS.sidebar_order.length; i++ ) { let ad_unit_code = FFADS.sidebar_order[i]; if( checkAlmostVisible( document.getElementById( ad_unit_code ), FFADS.lazy_load_threshold ) ) { FFADS.debug( ad_unit_code + ' is almost visible' ); FFADS.sidebar_order.splice( i, 1 ); FFADS.render_ad( ad_unit_code ); } else break; } } var pbjs = pbjs || {}; pbjs.que = pbjs.que || [ function() { FFADS.debug( 'pbjs.que starting' ); } ]; pbjs.bidderSettings = { standard: { bidCpmAdjustment: function( bidCpm, bid ) { let screen_size = window.innerWidth < 944 ? 'SMSX' : 'LGSX'; let factor = 1.0; if( typeof FFADS.units[bid.adUnitCode].scales[screen_size][bid.bidderCode] != 'undefined' ){ factor -= FFADS.units[bid.adUnitCode].scales[screen_size][bid.bidderCode]; FFADS.debug( 'factor for ' + bid.bidderCode + ' in ' + bid.adUnitCode + ' set to ' + factor + '; bid changed from ' + bidCpm + ' to ' + ( bidCpm *= factor ) ); } return bidCpm; } } }; pbjs.que.push(function() { pbjs.enableAnalytics( { provider: 'roxot', options: { publisherIds: ["556182c7-ac68-4d56-8c66-4b4336e28e5e"] } } ); pbjs.setConfig( { priceGranularity: "high", userSync: { iframeEnabled: true, filterSettings: { iframe: { bidders: ['pubmatic'], filter: 'include' } } } } ); FFADS.debug( 'adding units to PB' ); FFADS.debug( FFADS.pb_units ); pbjs.addAdUnits( FFADS.pb_units ); let adUnitCodes = []; for( let ad_unit in FFADS.units ) if( ! FFADS.units[ad_unit].lazy_load ) adUnitCodes.push( ad_unit ); FFADS.debug( 'requesting PB bids for initial units' ); pbjs.requestBids({ bidsBackHandler: FFADS.pbjs_bids_back, adUnitCodes: adUnitCodes }); }); function sendInitialAdserverRequest() { if( FFADS.initialAdserverRequestSent ) return; FFADS.initialAdserverRequestSent = true; FFADS.debug( 'queuing DFP request for initial units' ); googletag.cmd.push(function() { pbjs.que.push(function() { FFADS.debug( 'sending DFP request for initial units' ); let adUnitCodes = []; let dfpAdUnits = []; for( let ad_unit in FFADS.units ) if( ! FFADS.units[ad_unit].lazy_load ) { if( FFADS.units[ad_unit].ad_type == 'hybrid' ) { let pb_bid = pbjs.getHighestCpmBids( ad_unit ); pb_bid = pb_bid.length ? pb_bid[0].cpm : 0; FFADS.debug( 'Prebid bid ' + pb_bid + ' for ' + ad_unit ); if( pb_bid < FFADS.units[ad_unit].custom_ads[0].cpm ) { FFADS.debug( 'Custom code won for ' + ad_unit ); let el = false; if( el = document.getElementById( ad_unit ) ) { el.innerHTML = FFADS.units[ad_unit].custom_ads[0].code; eval( FFADS.units[ad_unit].custom_ads[0].rendering_script ); } else FFADS.debug( 'failed to render custom code in ' + ad_unit + ' since the unit is not on this page' ); continue; } } adUnitCodes.push( ad_unit ); dfpAdUnits.push( FFADS.units[ad_unit].instances[ad_unit].gt_slot ); } pbjs.setTargetingForGPTAsync( adUnitCodes ); apstag.setDisplayBids(); googletag.pubads().refresh( dfpAdUnits ); }); }); } FFADS.debug( 'scheduling DFP request for initial units' ); setTimeout( function() { sendInitialAdserverRequest(); }, FFADS.prebid_timeout ); (function () { var gads = document.createElement('script'); gads.async = true; gads.type = 'text/javascript'; var useSSL = 'https:' == document.location.protocol; gads.src = (useSSL ? 'https:' : 'http:') + '//www.googletagservices.com/tag/js/gpt.js'; var node = document.getElementsByTagName('script')[0]; node.parentNode.insertBefore(gads, node); })(); var googletag = googletag || {}; googletag.cmd = googletag.cmd || [ function() { FFADS.debug( 'googletag.cmd starting' ); } ]; googletag.cmd.push( function() { googletag.pubads().disableInitialLoad(); for( let ad_unit in FFADS.units ) if( ! FFADS.units[ad_unit].lazy_load && ( FFADS.units[ad_unit].ad_type == 'dfp_prebid' || FFADS.units[ad_unit].ad_type == 'hybrid' ) ) { FFADS.debug( 'defining slot for ' + ad_unit + ' #' + ad_unit ); FFADS.units[ad_unit].instances[ad_unit].gt_slot = googletag.defineSlot( FFADS.get_unit_path( ad_unit ), FFADS.units[ad_unit].sizes, ad_unit ).addService( googletag.pubads() ); } googletag.pubads().enableSingleRequest(); firefly_setTargeting(); googletag.pubads().setCentering(true); googletag.enableServices(); } ); function sendSingleAdserverRequest( ad_unit, div_id = false ) { div_id = div_id || ad_unit; if( FFADS.units[ad_unit].instances[div_id].adserverRequestSent ) return; FFADS.units[ad_unit].instances[div_id].adserverRequestSent = true; if( FFADS.units[ad_unit].ad_type == 'hybrid' ) { let pb_bid = pbjs.getHighestCpmBids( div_id ); pb_bid = pb_bid.length ? pb_bid[0].cpm : 0; FFADS.debug( 'Prebid bid ' + pb_bid + ' for #' + div_id ); if( pb_bid < FFADS.units[ad_unit].custom_ads[0].cpm ) { FFADS.debug( 'Custom code won for #' + div_id ); document.getElementById( div_id ).innerHTML = FFADS.units[ad_unit].custom_ads[0].code; eval( FFADS.units[ad_unit].custom_ads[0].rendering_script ); return; } } apstag.setDisplayBids(); pbjs.setTargetingForGPTAsync( [div_id] ); FFADS.debug( 'sending DFP request for ' + ad_unit + ' #' + div_id ); googletag.pubads().refresh( [FFADS.units[ad_unit].instances[div_id].gt_slot] ); } function firefly_pbjs_bids_back_single( ad_unit, div_id = false ) { div_id = div_id || ad_unit; FFADS.debug( 'PB bids back for ' + ad_unit + ' #' + div_id ); window['firefly_pbjs_ready' + ad_unit] = true; if( window['firefly_a9_ready' + ad_unit] ) return sendSingleAdserverRequest( ad_unit, div_id ); } function firefly_a9_bids_back_single( ad_unit, div_id = false ) { div_id = div_id || ad_unit; FFADS.debug( 'A9 bids back for ' + ad_unit + ' #' + div_id ); window['firefly_a9_ready' + ad_unit] = true; if( window['firefly_pbjs_ready' + ad_unit] ) return sendSingleAdserverRequest( ad_unit, div_id ); } !function(a9,a,p,s,t,A,g){if(a[a9])return;function q(c,r){a[a9]._Q.push([c,r])}a[a9]={init:function(){q("i",arguments)},fetchBids:function(){q("f",arguments)},setDisplayBids:function(){},targetingKeys:function(){return[]},_Q:[]};A=p.createElement(s);A.async=!0;A.src=t;g=p.getElementsByTagName(s)[0];g.parentNode.insertBefore(A,g)}("apstag",window,document,"script","//c.amazon-adsystem.com/aax2/apstag.js"); apstag.init({ pubID: 'da224ee9-07c8-4a80-87e4-528df4ac939e', adServer: 'googletag', bidTimeout: FFADS.prebid_timeout }); var a9_slot_arr = []; for( var ad_unit in FFADS.units ) { if( ! FFADS.units[ad_unit].lazy_load ) var a9_slot_arr = a9_slot_arr.concat( [ { slotID: ad_unit, slotName: FFADS.get_unit_path( ad_unit ), sizes: FFADS.units[ad_unit].sizes } ] ); }; FFADS.debug( 'requesting A9 bids for initial units' ); apstag.fetchBids( { slots: a9_slot_arr }, function( bids ) { FFADS.debug( 'A9 bids back for initial units' ); FFADS.a9_ready = true; if( FFADS.pbjs_ready ) return sendInitialAdserverRequest(); } );

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