A new doubly labelled water anthropometry-based equation for prediction of total daily energy expenditure in older people from low- and middle-income countries

Author(s):  
Heliodoro Alemán-Mateo ◽  
Lesley Evelyn Antúnez-Roman ◽  
Julián Esparza-Romero ◽  
Mauro E. Valencia ◽  
Julissa J. Salguero ◽  
...  
2020 ◽  
Author(s):  
Gibran Cruz-Martinez ◽  
Gokce Cerev

Global AgeWatch Index and Insights by HelpAge International aim to contribute to achievement of long-term transformative change in respect to ageing and the lives of older people by advocating for better production of timely and good quality data to inform policy and program response.The Global AgeWatch Index is a composite index that measures quality of life of older people, and ranks countries based on four domains – income security, health status, enabling environment and capability. The index was developed in partnership with Professor Asghar Zaidi. The index was published during 2013-2015.The Global AgeWatch Insights is a research-based advocacy tool that examines situation of older people in low- and middle-income countries, assesses availability of relevant data and evidence to support the analysis, and identification of policy actions. The Insights are produced in partnership with AARP. The reports were launched in 2018 are planned to be released every three years with a different thematic focus. The first report focuses on the inequities of the health systems in twelve low- and middle-income countries.


2019 ◽  
Vol 11 (21) ◽  
pp. 6157 ◽  
Author(s):  
Mark Gorman ◽  
Sion Jones ◽  
Jeffrey Turner

Older populations are rising globally, which in high-income countries has helped to generate a growing literature on the impact of ageing on travel requirements and transport policy. This article aims to provide an initial assessment of the state of knowledge on the impact on transportation policy and usage of the increasing numbers of older people in low- and middle-income countries (LAMICs), through a review of the literature relating to older people and transportation. As both the academic and policy/practice-related literature specifically addressing ageing and transport in LAMICs is limited, the study looks beyond transportation to assess the state of knowledge regarding the ways in which older people’s mobility is affected by issues, such as health, well-being, social (dis)engagement and gender. We find significant knowledge gaps, resulting in an evidence base to support the implementation of policy is lacking. Most research in low-income countries (LICs) is either broad quantitative analysis based on national survey data or small-scale qualitative studies. We conclude that, although study of the differing contexts of ageing in LAMICs as they relate to older people’s mobilities and transport use has barely begun, institutions which both make and influence policymaking recognise the existence of significant knowledge gaps. This should provide the context in which research agendas can be established.


2013 ◽  
Vol 9 (1) ◽  
pp. 20120919 ◽  
Author(s):  
Kyle H. Elliott ◽  
Maryline Le Vaillant ◽  
Akiko Kato ◽  
John R. Speakman ◽  
Yan Ropert-Coudert

Animal ecology is shaped by energy costs, yet it is difficult to measure fine-scale energy expenditure in the wild. Because metabolism is often closely correlated with mechanical work, accelerometers have the potential to provide detailed information on energy expenditure of wild animals over fine temporal scales. Nonetheless, accelerometry needs to be validated on wild animals, especially across different locomotory modes. We merged data collected on 20 thick-billed murres ( Uria lomvia ) from miniature accelerometers with measurements of daily energy expenditure over 24 h using doubly labelled water. Across three different locomotory modes (swimming, flying and movement on land), dynamic body acceleration was a good predictor of daily energy expenditure as measured independently by doubly labelled water ( R 2 = 0.73). The most parsimonious model suggested that different equations were needed to predict energy expenditure from accelerometry for flying than for surface swimming or activity on land ( R 2 = 0.81). Our results demonstrate that accelerometers can provide an accurate integrated measure of energy expenditure in wild animals using many different locomotory modes.


2021 ◽  
Vol 12 ◽  
Author(s):  
Sanjoy K. Deb ◽  
Eimear Dolan ◽  
Catherine Hambly ◽  
John R. Speakman ◽  
Olav Eftedal ◽  
...  

Commercial saturation divers are exposed to unique environmental conditions and are required to conduct work activity underwater. Consequently, divers’ physiological status is shown to be perturbed and therefore, appropriate strategies and guidance are required to manage the stress and adaptive response. This study aimed to evaluate the daily energy expenditure (DEE) of commercial saturation divers during a 21-day diving operation in the North Sea. Ten saturation divers were recruited during a diving operation with a living depth of 72 metres seawater (msw) and a maximum working dive depth of 81 msw. Doubly labelled water (DLW) was used to calculate DEE during a 10-day measurement period. Energy intake was also recorded during this period by maintaining a dietary log. The mean DEE calculated was 3030.9 ± 513.0 kcal/day, which was significantly greater than the mean energy intake (1875.3 ± 487.4 kcal; p = 0.005). There was also a strong positive correction correlation between DEE and total time spent performing underwater work (r = 0.7, p = 0.026). The results suggested saturation divers were in a negative energy balance during the measurement period with an intraindividual variability in the energy cost present that may be influenced by time spent underwater.


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