Docta Complutense
Repositorio institucional en acceso abierto de la Universidad Complutense de Madrid que recopila la producción científica para fomentar la visibilidad e impacto de la investigación complutense.
Con la colaboración del Ministerio de Ciencia e Innovación y de la Fundación Española para la Ciencia y la Tecnología (FECYT).
Envíos recientes
Let’s play with fire! Preliminary results of new experiments on animal bone of thermo-alterations
(Historical Biology, 2023) Martínez de Los Reyes, Penélope I.; Gutiérrez, Aida; Macho Callejo, Alba; García Morato, Sara; Moreno García, Marta; Fernández Jalvo, Yolanda
Thermo-alterations in skeletal remains result from circumstances that can be key to understanding the context in which these appear. Here, we present the results of a series of experiments based on the exposure of animal remains to a range of different conditions and temperatures (up to 900°C) to document a variety of contexts that provide valuable information in fossil sites and forensic cases. Meat-bearing and defleshed remains (i.e. meat manually removed before the experiment) were exposed to high-temperatures, both directly or buried in different types of sediments (silt, sand, gravel and mixed sediment), in order to document colour changes and survival of soft tissues. Thus, our main goal was to monitor colour alteration and superficial modifications on the bone surface (i.e. cracks, as well as disarticulation of small mammal carcasses caused by high temperatures).
KEYWORDS:
Assessment and indicators of kinematic behavior and perceived fatigability
(Revista da Associacao Medica Brasileira, 2024) Silva Migueis, Helena; Martínez Jiménez, Eva María; Casado Hernández, Israel; Dias, Adriano; Monteiro, Ana Júlia; Martins, Rodrigo Brandão; Bernardes, João Marcos; López López, Daniel; Gómez Salgado, Juan
OBJECTIVE: The objective of this study was to investigate the relationship between upper limb kinetics and perceived fatigability in elderly individuals during an upper limb position sustained isometric task.
METHODS: A total of 31 elderly participants, 16 men (72.94±4.49 years) and 15 women (72.27±6.05 years), performed a upper limb position sustained isometric task. Upper-limb acceleration was measured using an inertial measurement unit. Perceived fatigability was measured using the Borg CR10 scale.
RESULTS: Higher mean acceleration in the x-axis throughout the activity was associated with higher final perceived fatigability scores. Moderate correlations were observed between perceived fatigability variation and mean acceleration cutoffs in all axes during the second half of the activity. In women, significant correlations were found between all perceived fatigability cutoffs and mean acceleration in the y- and x-axes. However, in men, the relationships between perceived fatigability variation and mean acceleration were more extensive and stronger.
CONCLUSION: The acceleration pattern of the upper limb is linked to perceived fatigability scores and variation, with differences between sexes. Monitoring upper limb acceleration using a single inertial measurement unit can be a useful and straightforward method for identifying individuals who may be at risk of experiencing high perceived fatigability or task failure.
Participamos
