Appetite and energy intake responses to acute energy deficits in females versus males

PURPOSE: To explore whether compensatory responses to acute energy deficits induced by exercise or diet differ by sex. METHODS: In experiment one, twelve healthy women completed three 9 h trials (control, exercise-induced (Ex-Def) and food restriction induced energy deficit (Food-Def)) with identical energy deficits being imposed in the Ex-Def (90 min run, ∼70% of VO2 max) and Food-Def trials. In experiment two, 10 men and 10 women completed two 7 h trials (control and exercise). Sixty min of running (∼70% of VO2 max) was performed at the beginning of the exercise trial. Participants rested throughout the remainder of the exercise trial and during the control trial. Appetite ratings, plasma concentrations of gut hormones and ad libitum energy intake were assessed during main trials. RESULTS: In experiment one, an energy deficit of ∼3500 kJ induced via food restriction increased appetite and food intake. These changes corresponded with heightened concentrations of plasma acylated ghrelin and lower peptide YY3-36. None of these compensatory responses were apparent when an equivalent energy deficit was induced by exercise. In experiment two, appetite ratings and plasma acylated ghrelin concentrations were lower in exercise than control but energy intake did not differ between trials. The appetite, acylated ghrelin and energy intake response to exercise did not differ between men and women. CONCLUSIONS: Women exhibit compensatory appetite, gut hormone and food intake responses to acute energy restriction but not in response to an acute bout of exercise. Additionally, men and women appear to exhibit similar acylated ghrelin and PYY3-36 responses to exercise-induced energy deficits. These findings advance understanding regarding the interaction between exercise and energy homeostasis in women

Assessment of the self-ignition characteristics of both torrefied and untreated biomass fuels

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Delivering compassionate care in intensive care units: Nurses' perceptions of enablers and barriers

Background: Compassion is core to nursing practice. Nurses' expression of compassion is a complex interaction informed by the nurse, the patient and the practice environment. Aim: The aim of this study was to identify personal, professional and organizational factors, intensive care nurses, in a major metropolitan facility in Australia, identified as enabling or disabling them to be compassionate. Design: Intensive care nurses (n = 171) reflected on their experiences during ‘compassion cafés’ conducted in 2015. Method: Qualitative, reflexive methods were used to explore ICU nurses' perceptions of enablers and barriers. Nurses documented their perceptions, which were thematically analysed. Meanings were subsequently verified with participants. Results: The findings identified multiple factors both inside and outside the workplace that constrained or enabled nurses' ability to be compassionate. Two main factors inside the workplace were culture of the team, in particular, support from colleagues and congruency in work practices and decision-making, and connections with patients and families. Outside the workplace, nurses were influenced by their values about care and lifestyle factors such as family demands. Conclusions: Nurses capacity to be compassionate is a complex interplay between nursing knowledge and expectations, organizational structures and lifestyle factors. Implications: The responsibility for ‘compassionate’ care is a shared one. Nurses need to be cognizant of factors that are enabling or inhibiting their ability to be compassionate. Healthcare leaders have a responsibility to provide structural support (staffing, education and space) that assist nurses to deliver compassionate care and where appropriate cater for nurses needs so that they are better able to be compassionate. © 2016 John Wiley & Sons Ltd 16 May 201

The role of the nurse educator in sustaining compassion in the workplace: A case study from an intensive care unit

Intensive care unit (ICU) nurses are frequently exposed to emotional and stressful situations in the workplace, which has changed little over the decades. Compassion fatigue is caused by sustained exposure to situations that conflict with one’s values and beliefs in the ICU, eroding clinical team relationships and ultimately the quality and safety of patient care. Continuing education in the intensive care setting is a priority, as ICU nurses need to remain abreast of the rapid developments in high-acuity care delivery; however, attention also needs to be directed to nurses’ emotional well-being. Nurse educators are well positioned to create and sustain open dialogue that contributes to group cohesion and assists nurses’ well-being. © SLACK Incorporated