Levels of biomarkers associated with subconcussive head hits in mixed martial arts fighters.

Background: Concussion and the damage resulting from this event related to brain function have been widely studied; however, little is known about subconcussive impacts, especially in Mixed Martial Arts (MMA) fighters, which is a combat and full contact sport in which most blows are aimed at the head.

Objective: This study aims to evaluate the biomarker levels associated with subconcussive hits to the head in MMA fighters.

Methods: This is an exploratory study in which 30 male subjects (10 MMA fighters, 10 healthy individuals who practice muscle training, and 10 healthy sedentary individuals) aged between 18 and 32 years (25.

Monitoring sarcopenia with wearable devices: a systematic review protocol.

Introduction: Sarcopenia is a highly prevalent muscle dysfunction among older adults and is associated with adverse events. The periodic monitoring enables an early screening of patients at risk and control of the progression of muscle impairment. Wearable devices have been used as clinical support for sarcopenia detection.

Diagnostic Accuracy of the Short Physical Performance Battery in Detecting Frailty and Prefrailty in Community-Dwelling Older Adults: Results From the PRO-EVA Study.

Background And Purpose: The Short Physical Performance Battery (SPPB) is widely used for older adults since it has a high level of validity, reliability, and responsiveness in measuring function in this population. However, only a few studies of diagnostic accuracy have assessed SPPB capacity in detecting frailty and prefrailty by estimating more detailed measurement properties. Thus, the present study aimed to evaluate the SPPB's diagnostic accuracy in detecting frailty and prefrailty, in addition to identifying cut-off points for walking time and chair stand time.

Mapping instruments for assessing and stratifying frailty among community-dwelling older people: a scoping review.

Objective: To map in the current literature instruments for the assessment and stratification of frailty in community-dwelling older people, as well as to analyse them from the perspective of the Brazilian context.

Design: Scoping review.

Study Selection: The selection of studies took place between March and April 2020.

Cut-off points to screening for sarcopenia in community-dwelling older people residents in Brazil.

Background: At a time when the world's population is aging, one of the most important challenges for the healthcare field is to control the decline of the musculoskeletal system. This decline consists of a reduction in muscle mass and function, which is called sarcopenia and is associated with adverse health outcomes. Although there has been an increase in the number of publications on sarcopenia and its consequences, the reported prevalence varies widely, since these depend on the characteristics of the population studied, the definitions found in the literature and the cut-off points adopted.

Possible association of early menopause with worse physical function: a systematic review.

Importance: Menopause at younger ages is associated with a greater risk of adverse health outcomes such as osteoporosis, chronic diseases, and death. However, the association with physical function has not been well established.

Objective: Assess the association between timing of menopause and different measures of physical function.

Association between self-rated health and physical performance in middle-aged and older women from Northeast Brazil.

Background: Self-rated Health (SRH) is regarded as a simple and valid measure of a person's health status, given its association to adverse health outcomes, including low physical performance in older populations. However, studies investigating these associations in low- and middle-income settings are scarce, especially for middle-aged populations. Understanding the validity of SRH in relation to objective health measures in low-income populations could assist in decision making about health policy and strategies, especially in under-resourced settings.