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These changes are accompanied by declines in balance, postural control, and cognitive function. While the relationship between balance, postural control, and mobility has been extensively investigated, evidence on how different cognitive demands influence mobility performance in daily life remains limited. Accordingly, this study investigated how different cognitive demands associated with cell phone use affect mobility performance in young and older adults. Methods: In this cross-sectional study, 124 cognitively preserved participants (n = 62 young and n = 62 older adults) were enrolled. The participants were subjected to three walking conditions: without distraction, while texting, and while talking on the phone. Wearable motion sensors were used to quantify mobility performance across different task-specific components. Age and cognitive function were assessed to investigate their roles in mobility performance. Results: Older adults exhibited poorer gait performance than young adults, demonstrating longer completion times across multiple functional mobility tasks. Texting and phone conversations adversely affected gait performance to a similar extent. Age explained up to 42.4% of the variability in mobility performance during dual task, whereas cognitive function accounted for an additional 16.6% of the variance. Conclusions: In a cognitively preserved sample, the negative impact of cell phone use while walking was greater in older than in young adults. Age was the primary determinant of mobility performance while cognition played a lesser role. These findings support the need for interventions addressing age-related changes and cognitive demands to improve mobility in older adults.<\/jats:p>","DOI":"10.3390\/brainsci16080807","type":"journal-article","created":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T08:09:42Z","timestamp":1785398982000},"page":"807","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Understanding the Cognitive Load of Cell Phone Use While Walking: Distinct Effects of Texting and Phone Conversation"],"prefix":"10.3390","volume":"16","author":[{"given":"Patr\u00edcia de Morais Ferreira","family":"Brand\u00e3o","sequence":"first","affiliation":[{"name":"Faculty of Medicine, Institute of Health, Federal University of Mato Grosso do Sul, UFMS, Campo Grande 79060900, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heloisa Helena Batista","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Institute of Health, Federal University of Mato Grosso do Sul, UFMS, Campo Grande 79060900, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giovanna Souza","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Institute of Health, Federal University of Mato Grosso do Sul, UFMS, Campo Grande 79060900, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6474-0858","authenticated-orcid":false,"given":"Sidney Afonso","family":"Sobrinho Junior","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Institute of Health, Federal University of Mato Grosso do Sul, UFMS, Campo Grande 79060900, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7879-239X","authenticated-orcid":false,"given":"Gustavo","family":"Christofoletti","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, Institute of Health, Federal University of Mato Grosso do Sul, UFMS, Campo Grande 79060900, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,30]]},"reference":[{"key":"ref_1","unstructured":"Kandel, E.R., Koester, J.D., Mack, S.H., and Siegelbaum, S.A. (2021). Principles of Neural Science, McGraw-Hill Education. [6th ed.]."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"102414","DOI":"10.1016\/j.arr.2024.102414","article-title":"Unraveling the complexity of human brain: Structure, function in healthy and disease states","volume":"100","author":"Sultana","year":"2024","journal-title":"Ageing Res. Rev."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"347","DOI":"10.1152\/physrev.00048.2021","article-title":"Cortical-subcortical interactions in goal-directed behavior","volume":"103","author":"Cruz","year":"2023","journal-title":"Physiol. Rev."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1055","DOI":"10.1111\/ejn.14069","article-title":"Neural mechanisms of sensorimotor transformation and action selection","volume":"49","author":"Huda","year":"2019","journal-title":"Eur. J. Neurosci."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Rusciano, D. (2025). Light, Sound, and Melatonin: Investigating Multisensory Pathways for Visual Restoration. Medicina, 61.","DOI":"10.3390\/medicina61061009"},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Thura, D., Cabana, J.F., Feghaly, A., and Cisek, P. (2022). Integrated neural dynamics of sensorimotor decisions and actions. PLoS Biol., 20.","DOI":"10.1371\/journal.pbio.3001861"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"2288","DOI":"10.1080\/09593985.2025.2517836","article-title":"Alterations of working memory in adults with sensorimotor disorders: Exploring embodied cognition: A retrospective cohort study","volume":"41","year":"2025","journal-title":"Physiother. Theory Pract."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"581","DOI":"10.1177\/00315125221150100","article-title":"Executive Functions and Motor Adaptation to Predictable and Unpredictable Perturbations","volume":"130","author":"Benda","year":"2023","journal-title":"Percept. Mot. Ski."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2036","DOI":"10.1152\/jn.00105.2025","article-title":"Linking Motor Working Memory to Explicit and Implicit Motor Learning","volume":"134","author":"Hillman","year":"2025","journal-title":"J. Neurophysiol."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1186\/s12984-022-01095-3","article-title":"Brain activity during dual-task standing in older adults","volume":"19","author":"Kahya","year":"2022","journal-title":"J. Neuroeng. Rehabil."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"M\u00fcller, G., Salem, A., and Sch\u00f6llhorn, W.I. (2025). Effects of complex whole-body movements on EEG activity: A scoping review. Front. Psychol., 16.","DOI":"10.3389\/fpsyg.2025.1547022"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"28","DOI":"10.1016\/j.heares.2009.04.017","article-title":"Multisensory anatomical pathways","volume":"258","author":"Cappe","year":"2009","journal-title":"Hear. Res."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1593","DOI":"10.1038\/s42003-024-07224-z","article-title":"A function-based mapping of sensory integration along the cortical hierarchy","volume":"7","author":"Wei","year":"2024","journal-title":"Commun. Biol."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"117141","DOI":"10.1016\/j.neuroimage.2020.117141","article-title":"A cortical hierarchy of localized and distributed processes revealed via dissociation of task activations, connectivity changes, and intrinsic timescales","volume":"221","author":"Ito","year":"2020","journal-title":"Neuroimage"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"425","DOI":"10.1146\/annurev-neuro-070918-050216","article-title":"The Cortical Motor Areas and the Emergence of Motor Skills: A Neuroanatomical Perspective","volume":"44","author":"Strick","year":"2021","journal-title":"Annu. Rev. Neurosci."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Kogan, E., Lu, J., and Zuo, Y. (2023). Cortical circuit dynamics underlying motor skill learning: From rodents to humans. Front. Mol. Neurosci., 16.","DOI":"10.3389\/fnmol.2023.1292685"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"180","DOI":"10.1016\/j.brainres.2014.11.063","article-title":"The vestibular-basal ganglia connection: Balancing motor control","volume":"1597","author":"Stiles","year":"2015","journal-title":"Brain Res."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"141","DOI":"10.1146\/annurev-psych-010418-102836","article-title":"Motor development: Embodied, embedded, enculturated, and enabling","volume":"70","author":"Adolph","year":"2019","journal-title":"Annu. Rev. Psychol."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"4404","DOI":"10.1523\/JNEUROSCI.2094-18.2019","article-title":"Corticocortical Systems Underlying High-Order Motor Control","volume":"39","author":"Caminiti","year":"2019","journal-title":"J. Neurosci."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"121728","DOI":"10.1016\/j.neuroimage.2026.121728","article-title":"Maturation and reorganization of structural connectivity in infants within half a year","volume":"327","author":"Liu","year":"2026","journal-title":"Neuroimage"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"4630","DOI":"10.1002\/hbm.24726","article-title":"Charting shared developmental trajectories of cortical thickness and structural connectivity in childhood and adolescence","volume":"40","author":"Ball","year":"2019","journal-title":"Hum. Brain Mapp."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"102569","DOI":"10.1016\/j.arr.2024.102569","article-title":"Aging, brain plasticity, and motor learning","volume":"102","author":"Gooijers","year":"2024","journal-title":"Ageing Res. Rev."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"34","DOI":"10.1016\/j.neurobiolaging.2025.02.004","article-title":"Aging of gray matter microstructure: A brain-wide characterization of age group differences using NODDI","volume":"149","author":"Greenman","year":"2025","journal-title":"Neurobiol. Aging"},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Rezaei, A., Bhat, S.G., Cheng, C.H., Pignolo, R.J., Lu, L., and Kaufman, K.R. (2024). Age-related changes in gait, balance, and strength parameters: A cross-sectional study. PLoS ONE, 19.","DOI":"10.1371\/journal.pone.0310764"},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Lino, T.B., Scarmagnan, G.S., Sobrinho-Junior, S.A., Tessari, G.M.F., Gon\u00e7alves, G.H., Pereira, H.M., and Christofoletti, G. (2023). Impact of Using Smartphone While Walking or Standing: A Study Focused on Age and Cognition. Brain Sci., 13.","DOI":"10.3390\/brainsci13070987"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Contemori, G., Saccani, M.S., and Bonato, M. (2024). Cognitive-Cognitive Dual-task in aging: A cross-sectional online study. PLoS ONE, 19.","DOI":"10.1371\/journal.pone.0302152"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"110756","DOI":"10.1016\/j.exger.2019.110756","article-title":"Brain activity during dual task gait and balance in aging and age-related neurodegenerative conditions: A systematic review","volume":"128","author":"Kahya","year":"2019","journal-title":"Exp. Gerontol."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"125","DOI":"10.1007\/s40520-025-03021-8","article-title":"Aging, longevity, and healthy aging: The public health approach","volume":"37","author":"Gianfredi","year":"2025","journal-title":"Aging Clin. Exp. Res."},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Fredriksen Goldsen, K., Kim, H.J., Turner, N.R., and Emlet, C.A. (2026). Chronic conditions and healthcare cost and utilization among underserved Medicare beneficiaries. PLoS ONE, 21.","DOI":"10.1371\/journal.pone.0340785"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"377","DOI":"10.1097\/PHM.0000000000002352","article-title":"Benefits of a Dual-Task Training on Motor and Cognitive Functions in Community-Dwelling Older Adults: A Controlled Clinical Trial","volume":"103","author":"Scarmagnan","year":"2024","journal-title":"Am. J. Phys. Med. Rehabil."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"103366","DOI":"10.1016\/j.gerinurse.2025.05.005","article-title":"Effectiveness of cognitive-motor dual task training in preventing falls in community older adults: A meta-analysis and systematic review","volume":"64","author":"Gao","year":"2025","journal-title":"Geriatr. Nurs."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"105368","DOI":"10.1016\/j.archger.2024.105368","article-title":"Effect of dual-task training on balance in older adults: A systematic review and meta-analysis","volume":"121","author":"Yildiz","year":"2024","journal-title":"Arch. Gerontol. Geriatr."},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Souza Silva, W., McFadyen, B., Kehayia, E., Azevedo, N., Fung, J., and Lamontagne, A. (2019). Phone messages affect the detection of approaching pedestrians in healthy young and older adults immersed in a virtual community environment. PLoS ONE, 14.","DOI":"10.1371\/journal.pone.0217062"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1016\/j.gaitpost.2018.11.003","article-title":"Cognitive and visual demands, but not gross motor demand, of concurrent smartphone use affect laboratory and free-living gait among young and older adults","volume":"68","author":"Prupetkaew","year":"2019","journal-title":"Gait Posture"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"189","DOI":"10.1016\/0022-3956(75)90026-6","article-title":"\u201cMini-Mental State\u201d. A practical method for grading the cognitive state of patients for the clinician","volume":"12","author":"Folstein","year":"1975","journal-title":"J. Psychiatr. Res."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"142","DOI":"10.1111\/j.1532-5415.1991.tb01616.x","article-title":"The timed \u201cUp & Go\u201d: A test of basic functional mobility for frail elderly persons","volume":"39","author":"Podsiadlo","year":"1991","journal-title":"J. Am. Geriatr. Soc."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"203","DOI":"10.1159\/000314963","article-title":"Properties of the \u2018Timed Up and Go\u2019 Test: More than Meets the Eye","volume":"57","author":"Herman","year":"2011","journal-title":"Gerontology"},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Ler\u00edn-Calvo, A., Prisco, G., Fern\u00e1ndez-Maza, E., N\u00fa\u00f1ez-Gonz\u00e1lez, M., Santiago-Lorrio, G., Donisi, L., and Lerma-Lara, S. (2025). Assessing the Validity and Reliability of a Single Lumbar-Mounted IMU System for Gait Analysis. Sensors, 25.","DOI":"10.3390\/s25247643"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"e64255","DOI":"10.2196\/64255","article-title":"Sensorized Motor and Cognitive Dual Task Framework for Dementia Diagnosis: Preliminary Insights From a Cross-Sectional Study","volume":"27","author":"Mancioppi","year":"2025","journal-title":"J. Med. Internet Res."},{"key":"ref_40","doi-asserted-by":"crossref","unstructured":"Mancioppi, G., Rovini, E., Fiorini, L., Zeghari, R., Gros, A., Manera, V., Robert, P., and Cavallo, F. (2023). Mild Cognitive Impairment Identification Based on Motor and Cognitive Dual-Task Pooled Indices. PLoS ONE, 18.","DOI":"10.1371\/journal.pone.0287380"},{"key":"ref_41","first-page":"e458","article-title":"What Does the Current Evidence Reveal about the Effects of Exercise on Cognitive Functions in Young Adults? Insights from a Critiques Article","volume":"19","author":"Christofoletti","year":"2025","journal-title":"Braz. J. Mot. Behav."},{"key":"ref_42","first-page":"158","article-title":"Effects of Smartphone Use on Postural Control and Mobility: A Dual-Task Study","volume":"17","author":"Tessari","year":"2023","journal-title":"Braz. J. Mot. Behav."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"354","DOI":"10.1016\/j.gaitpost.2016.12.027","article-title":"A Narrative Review of Texting as a Visually-Dependent Cognitive-Motor Secondary Task During Locomotion","volume":"52","author":"Krasovsky","year":"2017","journal-title":"Gait Posture"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"1014784","DOI":"10.1155\/2017\/1014784","article-title":"Dual-Task Does Not Increase Slip and Fall Risk in Healthy Young and Older Adults during Walking","volume":"2017","author":"Soangra","year":"2017","journal-title":"Appl. Bionics Biomech."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"172","DOI":"10.1016\/j.gaitpost.2007.04.010","article-title":"The Association between Impaired Turning and Normal Straight Walking in Parkinson\u2019s Disease","volume":"26","author":"Crenna","year":"2007","journal-title":"Gait Posture"},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"e41082","DOI":"10.2196\/41082","article-title":"Turning When Using Smartphone in Persons With and Those Without Neurologic Conditions: Observational Study","volume":"25","author":"Bianchini","year":"2023","journal-title":"J. Med. Internet Res."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"879","DOI":"10.1093\/gerona\/glr068","article-title":"fNIRS Study of Walking and Walking While Talking in Young and Old Individuals","volume":"66","author":"Holtzer","year":"2011","journal-title":"J. Gerontol. A Biol. Sci. Med. Sci."},{"key":"ref_48","doi-asserted-by":"crossref","unstructured":"Jacobsen, N.S.J., Blum, S., Scanlon, J.E.M., Witt, K., and Debener, S. (2022). Mobile Electroencephalography Captures Differences of Walking over Even and Uneven Terrain but Not of Single and Dual-Task Gait. Front. Sports Act. Living, 4.","DOI":"10.3389\/fspor.2022.945341"},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"866","DOI":"10.1093\/ptj\/82.9.866","article-title":"Determinants of the Sit-to-Stand Movement: A Review","volume":"82","author":"Janssen","year":"2002","journal-title":"Phys. Ther."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"721","DOI":"10.1016\/j.neubiorev.2009.10.005","article-title":"Motor Control and Aging: Links to Age-Related Brain Structural, Functional, and Biochemical Effects","volume":"34","author":"Seidler","year":"2010","journal-title":"Neurosci. Biobehav. Rev."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"3096","DOI":"10.1111\/jgs.17979","article-title":"Cognitive Reserve and Risk of Mobility Impairment in Older Adults","volume":"70","author":"Holtzer","year":"2022","journal-title":"J. Am. Geriatr. Soc."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1146\/annurev.psych.59.103006.093656","article-title":"The Adaptive Brain: Aging and Neurocognitive Scaffolding","volume":"60","author":"Park","year":"2009","journal-title":"Annu. Rev. Psychol."}],"container-title":["Brain Sciences"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2076-3425\/16\/8\/807\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T04:19:46Z","timestamp":1785557986000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2076-3425\/16\/8\/807"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7,30]]},"references-count":52,"journal-issue":{"issue":"8","published-online":{"date-parts":[[2026,8]]}},"alternative-id":["brainsci16080807"],"URL":"https:\/\/doi.org\/10.3390\/brainsci16080807","relation":{},"ISSN":["2076-3425"],"issn-type":[{"value":"2076-3425","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7,30]]}}}