Walking, a fancy exercise, is commonly carried out concurrently with different duties comparable to conversing, studying indicators, or making choices. Notably, for a lot of people over 65, this dual-tasking can impair strolling efficiency and doubtlessly trigger instability. Intriguingly, older adults who wrestle extra with multitasking face increased dangers of damaging health penalties, together with falls and dementia.
A current research printed in Lancet Healthy Longevity revealed that the capability to dual-task whereas strolling begins to deteriorate at 55 years outdated, a full decade sooner than the traditionally-defined “old age” threshold of 65. Moreover, this decline within the means to stroll and discuss concurrently was discovered to be attributed to not bodily modifications, however fairly to cognitive shifts and alterations in mind operate.
“Our results suggest that in middle age, poor dual-task walking performance might be an indicator of accelerated brain aging or an otherwise pre-symptomatic neurodegenerative condition,” stated major co-author Junhong Zhou, Ph.D., Assistant Scientist I, Hinda and Arthur Marcus Institute for Aging Research.
“We assessed a large number of individuals between the ages of 40 and 64 years who are part of a study called the Barcelona Brain Health Initiative (BBHI). We observed that the ability to walk under normal, quiet conditions remained relatively stable across this age range. However, even in this relatively healthy cohort, when we asked participants to walk and at the same time perform a mental arithmetic task, we were able to observe subtle yet important changes in gait starting in the middle of the sixth decade of life.”
“This means that a simple test of dual-task walking, which probes the brain’s ability to perform two tasks at the same time, can uncover early, age-related changes in brain function that may signify an increased risk of developing dementia in later life,” stated Zhou.
The paper stemmed from a singular collaboration between researchers on the Hinda and Arthur Marcus Institute at Hebrew SeniorLife in Boston and the Guttmann Institut in Barcelona, Spain, the place the population-based Barcelona Brain Health Initiative (BBHI) is being carried out. The Principal Investigator of the BBHI is Prof. David Batres-Faz from the University of Barcelona, and Dr. Alvaro Pascual-Leone, the medical director of the Deanna and Sidney Wolk Center for Memory Health, and a Senior Scientist at Hinda and Arthur Marcus Institute for Aging Research at Hebrew SeniorLife, and who serves as Scientific Director of the BBHI.
“As compared to walking quietly, walking under dual-task conditions adds stress to the motor control system because the two tasks (walking and mental arithmetic, for example) must compete for shared resources in the brain. What we believe is that the ability to handle this stress and adequately maintain performance in both tasks is a critical brain function that tends to be diminished in older age. Our study is important because it has discovered that changes in this type of brain resilience occur much earlier than previously believed,” stated Zhou.
“Now, we have a clearer picture of age-related changes in the control of walking and how this relates to cognitive and brain health,” stated Zhou. “Importantly though, while we observed that dual-task walking tended to diminish with advancing age across the entire cohort, not everyone in the study fit into this description. For example, we observed that a portion of participants over the age of 60 years who performed the dual task test as well as participants aged 50, or even younger. This means that dual-task walking performance does not necessarily decline as we get older, and, that some individuals appear more resistant to the effects of aging. We hope that our study will spur future research attempts to discover lifestyle and other modifiable factors that support the maintenance of dual-task performance into old age, as well as interventions that target these factors.”
Reference: “The age-related contribution of cognitive function to dual-task gait in middle-aged adults in Spain: observations from a population-based study” by Junhong Zhou, Gabriele Cattaneo, Wanting Yu, On-Yee Lo, Natalia A Gouskova, Selma Delgado-Gallén, Maria Redondo-Camós, Goretti España-Irla, Javier Solana-Sánchez, Josep M Tormos, Lewis A Lipsitz, David Bartrés-Faz, Alvaro Pascual-Leone and Brad Manor, 1 March 2023, The Lancet Healthy Longevity.
Findings: 996 individuals have been recruited to the BBHI research between May 5, 2018, and July 7, 2020, of which 640 members accomplished gait and cognitive assessments throughout this time (imply 24 days [SD 34] between first and second go to) and have been included in our evaluation (342 males and 298 women). Non-linear associations have been noticed between age and dual-task efficiency. Starting at 54 years, the DTC to stride time (β=0·27 [95% CI 0·11 to 0·36]; p<0·0001) and stride time variability (0·24 [0·08 to 0·32]; p=0·0006) elevated with advancing age. In people aged 54 years or older, decreased world cognitive operate correlated with elevated DTC to stride time (β=–0·27 [–0·38 to –0·11]; p=0·0006) and elevated DTC to stride time variability (β=–0·19 [–0·28 to –0·08]; p=0·0002).
The research was funded by the La Caixa Foundation, Institut Guttmann, and Fundació Abertis. Junhong Zhou and Brad Manor are supported by grants from the National Institute on Aging.