Banca de QUALIFICAÇÃO: MARCELA MONTEIRO PIMENTEL

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : MARCELA MONTEIRO PIMENTEL
DATE: 22/02/2024
TIME: 09:00
LOCAL: remoto
TITLE:

Associations between physical activity level measured by wearable device, heart
rate variability and sarcopenia: findings from the PRO-EVA study.

KEY WORDS:

Sarcopenia. Physical Activity. Heart Rate Variability.

PAGES: 20
BIG AREA: Ciências da Saúde
AREA: Fisioterapia e Terapia Ocupacional
SUMMARY:

Introduction: Physical activity (PA) is associated with lower fat mass index and
increased muscle function, which can significantly reduce the risk for
sarcopenia, becoming one of the most important modifiable risk factors for the
disease. Physical impairment is a critical determinant of disability and death in
the elderly. Autonomic dysfunction may further exacerbate age-related decline
in body function and capacity but the link between these components has not
yet been fully clarified. Objective: To investigate associations between PA level,
heart rate variability (HRV) and sarcopenia in community-dwelling elderly
people. Methods: Three studies comprise this thesis. The first is a systematic
review (RS) investigating the use of wearable devices in monitoring physical
performance in sarcopenia. The second is a cross-sectional study using data
from the Program for Aging and Active Life (PRO-EVA, in portuguese), aiming to
investigate associations between levels of PA measured objectively through a
wearable device, HRV and sarcopenia. The third study has a longitudinal
approach with the objective of identifying the influence of HRV on the
occurrence of cardiovascular and cerebrovascular disorders and death in
community-dwelling elderly people. Results: The RS protocol was registered in

the Prospective Register of Systematic Reviews and published in a peer-
reviewed journal. The final text of the RS is under construction. Six cross-
sectional studies were included, which evaluated aspects of mobility and level

of physical activity using wearable devices to monitor sarcopenia. However,
heterogeneity makes comparison and analysis difficult and therefore
compromises the recommendation of wearable devices. The second and third
studies are in the data analysis phase and still do not have results to be
presented. It is expected that, by achieving the objectives proposed in this
study, wearable devices can integrate a category of resources that favors
monitoring and prediction of sarcopenia and other adverse health events.

COMMITTEE MEMBERS:
Presidente - 1460020 - ALVARO CAMPOS CAVALCANTI MACIEL
Externa à Instituição - ANA TEREZA DO NASCIMENTO SALES FIGUEIREDO FERNANDES
Interno - 350637 - RICARDO OLIVEIRA GUERRA