PMID- 33895637
OWN - NLM
STAT- MEDLINE
DCOM- 20211008
LR  - 20211008
IS  - 1879-2219 (Electronic)
IS  - 0966-6362 (Linking)
VI  - 87
DP  - 2021 Jun
TI  - Noon is the best time to perform a dual task while cognitive performance may be 
      boosted by concurrent performance of a physical task.
PG  - 95-100
LID - S0966-6362(21)00140-5 [pii]
LID - 10.1016/j.gaitpost.2021.04.016 [doi]
AB  - BACKGROUND: Dual-task is the concurrent performance of two independent single 
      tasks (ST) that have distinct goals. Daily variations in performance of singular 
      cognitive or motor tasks are reported in the literature. RESEARCH QUESTION: To 
      investigate whether performance of a dual-task (DT) varies based on the time of 
      day and whether there is interference between the motor and cognitive aspect of 
      DT. METHODS: Participants performed a 10 Meter Walk Test (10MWT) for motor and a 
      Stroop Test for cognitive task. The DT activity combined both STs. All 
      participants performed three trials for all three conditions at three different 
      times of the day (morning, noon, afternoon), on separate testing days. RESULTS: 
      Data were collected on 42 participants. Most participants were female (28/42), 
      average age of 27.95 +/- 9.28 years, and BMI of 25.58 +/- 4.49 Kg/m2. Walking 
      velocities in ST were consistently faster than in DT, p < .0005. In DT 
      conditions, the participants walked faster at noon (1.21 +/- 0.13 m/s) compared to 
      the morning (1.16 +/- 0.15 m/s, p = 0.01) or the afternoon (1.16 +/- 0.18 m/s, 
      p = 0.04). The participants' score on the DT-Stroop test were only different at 
      noon (11.43 +/- 2.28) when compared to morning (10.67 +/- 1.34, p = 0.006). The 
      percentage DT-Cognitive interference effect was 26.1 % in the morning, 11.8 % at 
      noon and 13.4 % in the afternoon. The Motor interference was -14.6 % in the 
      morning, -12.2 % at noon and -13.8 % in the afternoon. SIGNIFICANCE: Noon is the 
      best time to perform a dual task condition. Noon consistently exhibited the least 
      motor or cognitive interference. Conversely, the maximum boost in cognitive 
      performance was observed in the mornings.
CI  - Published by Elsevier B.V.
FAU - Sandoval, Roberto
AU  - Sandoval R
AD  - Department of Veteran's Affairs, South Texas Veterans Health Care System Audie L. 
      Murphy Medical Center, Research Department, San Antonio, TX, United States. 
      Electronic address: rsandovalptphd@outlook.com.
FAU - Pesquera, Mason
AU  - Pesquera M
AD  - University of the Incarnate Word, School of Physical Therapy, San Antonio, TX, 
      United States.
FAU - Kim, Andrew
AU  - Kim A
AD  - University of the Incarnate Word, School of Physical Therapy, San Antonio, TX, 
      United States.
FAU - Dickerson, Corey
AU  - Dickerson C
AD  - University of the Incarnate Word, School of Physical Therapy, San Antonio, TX, 
      United States.
FAU - Dedick, Joseph
AU  - Dedick J
AD  - University of the Incarnate Word, School of Physical Therapy, San Antonio, TX, 
      United States.
FAU - Brown, Nathan
AU  - Brown N
AD  - University of the Incarnate Word, School of Physical Therapy, San Antonio, TX, 
      United States.
LA  - eng
PT  - Journal Article
DEP - 20210419
PL  - England
TA  - Gait Posture
JT  - Gait & posture
JID - 9416830
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - *Cognition
MH  - Female
MH  - Humans
MH  - Male
MH  - Physical Examination
MH  - Stroop Test
MH  - *Task Performance and Analysis
MH  - Walking
MH  - Young Adult
OTO - NOTNLM
OT  - 10MWT
OT  - Attention
OT  - Dual-task
OT  - Sleep-wake cycle
OT  - Stroop
EDAT- 2021/04/26 06:00
MHDA- 2021/10/09 06:00
CRDT- 2021/04/25 20:44
PHST- 2020/01/24 00:00 [received]
PHST- 2021/04/04 00:00 [revised]
PHST- 2021/04/09 00:00 [accepted]
PHST- 2021/04/26 06:00 [pubmed]
PHST- 2021/10/09 06:00 [medline]
PHST- 2021/04/25 20:44 [entrez]
AID - S0966-6362(21)00140-5 [pii]
AID - 10.1016/j.gaitpost.2021.04.016 [doi]
PST - ppublish
SO  - Gait Posture. 2021 Jun;87:95-100. doi: 10.1016/j.gaitpost.2021.04.016. Epub 2021 
      Apr 19.