PMID- 35698538
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220716
IS  - 2251-7200 (Print)
IS  - 2251-7200 (Electronic)
IS  - 2251-7200 (Linking)
VI  - 12
IP  - 3
DP  - 2022 Jun
TI  - Quantitative Electroencephalography and Surface Electromyography Correlations 
      upon Predictable and Unpredictable Perturbation in Older Adults.
PG  - 257-266
LID - 10.31661/jbpe.v0i0.2004-1098 [doi]
AB  - BACKGROUND: Quantitative Electroencephalography (qEEG) is a non-invasive method 
      used to quantify electrical activity over the cortex. QEEG provides an accurate 
      temporal resolution of the brain activity, making it a useful tool for assessing 
      cortical function during challenging tasks. OBJECTIVE: This study aimed to 
      investigate postural adjustments in older adults in response to an external 
      perturbation. MATERIAL AND METHODS: In this observational study, nineteen healthy 
      older adults were involved. A 32-channel qEEG was employed to track alterations 
      in beta power on the electrodes over the two sensory-motor areas. Integrated 
      electromyographic activity (IntEMG) of the leg muscles was evaluated in response 
      to perturbations under predictable and unpredictable conditions. RESULTS: The 
      results indicated higher beta power during late-phase in the Cz electrode in both 
      conditions. IntEMG was significantly greater in the tibialis anterior muscle 
      during both conditions in the CPA epoch. In predictable condition, a positive 
      correlation was found between the beta power over C(4) (r = 0.560, p = 0.013) and 
      C(3) (r = 0.458, p = 0.048) electrodes and tibialis anterior muscle amplitude, 
      and between beta power in C(4) and gastrocnemius amplitude (r = 0.525, p = 
      0.021). In unpredictable condition, there was a positive correlation between beta 
      power over the C(4) and the tibialis anterior amplitude (r = 0.580, p = 0.009) 
      and also it over the C(3) and the tibialis anterior amplitude (r = 0.452, p = 
      0.049). CONCLUSION: Our findings demonstrate that sensorimotor processing occurs 
      in the brain during response to perturbation. Furthermore, cortical activity 
      appeared to be greatest during the recruitment of the muscles upon late-phase in 
      older adults.
CI  - Copyright: (c) Journal of Biomedical Physics and Engineering.
FAU - Saadat, Zahra
AU  - Saadat Z
AD  - PhD Candidate, Department of Physical Therapy, School of Rehabilitation Sciences, 
      Shiraz University of Medical Sciences, Shiraz, Iran.
FAU - Pirouzi, Soraya
AU  - Pirouzi S
AD  - PhD, Department of Physical Therapy, School of Rehabilitation Sciences, Shiraz 
      University of Medical Sciences, Shiraz, Iran.
FAU - Nami, Mohammad
AU  - Nami M
AD  - MD, PhD, Neuroscience Laboratory (Brain, Cognition and Behavior), Department of 
      Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz 
      University of Medical Sciences, Shiraz, Iran.
AD  - MD, PhD, Neuroscience Center, Instituto De Investigaciones Cientificasy Servicios 
      De Alta Tecnologia (INDICASAT AIP), City of Knowledge, Panama City, Republic of 
      Panama.
FAU - Rojhani-Shirazi, Zahra
AU  - Rojhani-Shirazi Z
AD  - PhD, Department of Physical Therapy, School of Rehabilitation Sciences, Shiraz 
      University of Medical Sciences, Shiraz, Iran.
AD  - PhD, Rehabilitation Sciences Research Center, Shiraz University of Medical 
      Sciences, Shiraz, Iran.
LA  - eng
PT  - Journal Article
DEP - 20220601
PL  - Iran
TA  - J Biomed Phys Eng
JT  - Journal of biomedical physics & engineering
JID - 101589641
PMC - PMC9175129
OTO - NOTNLM
OT  - Brain Activity
OT  - Electroencephalography
OT  - Electromyography
OT  - Posture
EDAT- 2022/06/15 06:00
MHDA- 2022/06/15 06:01
PMCR- 2022/06/01
CRDT- 2022/06/14 01:44
PHST- 2020/04/09 00:00 [received]
PHST- 2020/07/15 00:00 [accepted]
PHST- 2022/06/14 01:44 [entrez]
PHST- 2022/06/15 06:00 [pubmed]
PHST- 2022/06/15 06:01 [medline]
PHST- 2022/06/01 00:00 [pmc-release]
AID - JBPE-12-3 [pii]
AID - 10.31661/jbpe.v0i0.2004-1098 [doi]
PST - epublish
SO  - J Biomed Phys Eng. 2022 Jun 1;12(3):257-266. doi: 10.31661/jbpe.v0i0.2004-1098. 
      eCollection 2022 Jun.