DSpace Collection:

Association Between Lower-Limb Lean Soft Tissue Assessed by DXA and A-Mode Ultrasound and the Functional Performance of Older Adults

2026-08-03T07:02:35Z

Title: Association Between Lower-Limb Lean Soft Tissue Assessed by DXA and A-Mode Ultrasound and the Functional Performance of Older Adults Abstract: Abstract

Background/Objectives: Sarcopenia is a public health concern linked to frailty. Accurate assessment is essential, yet standardization remains a challenge. This study assessed the agreement between Dual-energy X-ray Absorptiometry (DXA) and A-mode Ultrasound (US), evaluating their independent capacity to explain functional performance in community-dwelling older adults. Subjects/Methods : This cross-sectional study included 136 adults (60 years). Body composition was measured via DXA (Appendicular Lean Soft Tissue Index, ALST/h²) and A-mode US (Anterior Thigh Muscle Thickness, MT). Functional performance was assessed using the Sit-to-Stand (STS) test (low performance: 15 seconds). Multiple linear regression models, adjusted for age, BMI, and sex, identified predictors of STS time. Results : ALST/h² and anterior thigh MT were correlated with STS time (rho=0.317, =<0.001;rho=0.293, =0.002) but weakly correlated with each other (r=0.088, =0.310). The adjusted model explained 25.5% of STS variance (R² Adjusted=0.255, p<0.001). Age was the strongest independent predictor (ß=0.405,p<0.001). The independent contribution of morphological measures was attenuated when age was included in the model. No significant interaction was found between age and ALST/h² (p=0.465) or age and MT (p=0.859). Conclusion : Chronological age associates more strongly with functional performance than muscle quantity. Weak agreement between DXA and A-mode US suggests these methods are not interchangeable. While muscle mass and thickness explain little functionality (25%), morphology alone is insufficient to predict performance, likely due to age-related declines in muscle quality (e.g., myosteatosis) that A-mode US cannot distinguish.

Gastrointestinal Fate of Bioactive Compounds of Brassicaceae Microgreens: A Systematic Review

2026-01-17T07:32:15Z

Title: Gastrointestinal Fate of Bioactive Compounds of Brassicaceae Microgreens: A Systematic Review

Excessive gestational weight gain increases risk of childhood asthma, rhinitis, and allergic sensitization: evidence from a Birth Cohort

2026-01-10T07:29:56Z

Title: Excessive gestational weight gain increases risk of childhood asthma, rhinitis, and allergic sensitization: evidence from a Birth Cohort

Norma Clínica 003/2024 Abordagem Diagnóstica e de Tratamento à Pessoa com Alergia ao Leite de Vaca

2025-03-18T07:23:19Z

Title: Norma Clínica 003/2024 Abordagem Diagnóstica e de Tratamento à Pessoa com Alergia ao Leite de Vaca

Relação entre aminoácidos de cadeia ramificada e doença metabólica

2024-12-12T07:23:56Z

Title: Relação entre aminoácidos de cadeia ramificada e doença metabólica

Elogio da Sopa

2024-12-12T07:22:35Z

Title: Elogio da Sopa

As propostas políticas na área da nutrição nas eleições legislativas de 2024

2024-12-12T07:21:55Z

Title: As propostas políticas na área da nutrição nas eleições legislativas de 2024

Alternative Proteins: A solution or an obstacle to sustainable diets?

2024-12-12T07:22:43Z

Title: Alternative Proteins: A solution or an obstacle to sustainable diets?

A nutrição comprometida

2024-12-12T07:22:33Z

Title: A nutrição comprometida

Saúde Pública, Açúcar e Impostos

2024-12-12T07:20:57Z

Title: Saúde Pública, Açúcar e Impostos

Socioeconomic patterning of stunted and overweight Iranian children: a national cross-sectional analysis

2024-07-13T06:17:40Z

Title: Socioeconomic patterning of stunted and overweight Iranian children: a national cross-sectional analysis Abstract: Abstract Background: The evidence indicates a high prevalence of malnutrition, such as stunting and overweight, among Iranian children. Yet, this prevalence may not be equally distributed across socioeconomic groups, so that non-targeted policies may be ineffective. This paper aimed to measure the socioeconomic patterning of children's stunting and overweight status, and the mediating role of nutrition patterns. Methods: The data were derived from the 2017 Demography and Health Survey (DHS) and the Multiple Indicator Cluster Survey (MICS), which were conducted in Iran. A sample of 19,270 children under the age of five was selected through a two-stage random sampling process. Children aged between 2 and 5 years were selected for the study (n=11,147). The probability of stunting and overweight was modeled using logistic regressions. The parental education and occupation and living conditions (areas and assets of the household) were considered as explanatory variables. The Diet Diversity Score was then factored in as mediation factor. Analyses were adjusted for age and sex. Results: The odds of stunting were more than 1.7 times greater among children whose father only completed primary school and more than twice higher among children whose mother was illiterate. Children of unemployed fathers had a 1.69-fold greater risk of stunting, while the risk was almost 1.5 higher in children living in smaller houses. Finally, a gradient was also observed related to poor living resources, with 2.01 times greater odds of stunting for children from families without assets. The results were less socially patterned for overweight, which was still significantly lower among children from low-educated fathers. Although a higher Diet Diversity Score (DDS) was associated with a decrease in stunting and an increase in overweight, these associations did not modify the link between socioeconomic status and stunting and overweight. Discussion: Malnutrition, especially stunting, more severely affects children from Iranian households with a lower socioeconomic background. Parental education, unemployment of father, area and assets were the most accurate factors for disentangling these inequalities, suggesting policies targeting more vulnerable groups.

Estruturas de apoio alimentar ao idoso - Nutrição no Envelhecimento.

2023-11-09T07:20:39Z

Title: Estruturas de apoio alimentar ao idoso - Nutrição no Envelhecimento. Description: Comunicação apresentada em: I Simpósio de Nutrição; 2008 Mai; Aveiro.

Added value of minimally processed fruit and vegetables.

2023-11-09T07:20:37Z

Title: Added value of minimally processed fruit and vegetables. Description: Comunicação apresentada em: ICCAS 08: Global, national and local perspectives: proceedings of the Sixth International Conference on Culinary Arts and Sciences; 2008 Jun 23-27; Stavenger, Noruega.

Avaliação Qualitativa de Ementas - Método AQE.

2023-11-09T07:19:46Z

Title: Avaliação Qualitativa de Ementas - Método AQE. Description: Poster apresentado em: VII Congresso de Nutrição e Alimentação; 2008 Mai 29-30; Lisboa.

Dafne AnemosSoft

2023-11-09T07:18:31Z

Title: Dafne AnemosSoft

Escuteiros assistem a palestra sobre alimentação saudável.

2023-11-09T07:17:35Z

Title: Escuteiros assistem a palestra sobre alimentação saudável. Description: Notícia sobre palestra da Prof.ª Doutora Ada Rocha sobre nutrição e os perigos da obesidade.

Que desportos queimam mais calorias?

2023-11-09T07:17:06Z

Title: Que desportos queimam mais calorias? Description: Colaboração no Programa Energia Positiva da Plataforma de Luta Contra a Obesidade - RTP, 24 de Junho de 2008.

Expansion and update of existing nutrition monotoring systems

2023-11-09T07:17:04Z

Title: Expansion and update of existing nutrition monotoring systems

Recomendações para o consumo de pescado

2023-07-28T06:25:38Z

Title: Recomendações para o consumo de pescado

Gull droppings undermine efforts to control spread of colistin-resistance genes

2023-01-17T07:16:59Z

Title: Gull droppings undermine efforts to control spread of colistin-resistance genes