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| 2. |
- Holmbäck, Ulf, et al.
(författare)
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Metabolic responses to nocturnal eating in men are affected by sources of dietary energy
- 2002
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Ingår i: Journal of Nutrition. - : The American Society for Nutritional Sciences. - 0022-3166 .- 1541-6100. ; 107, s. 121-
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Tidskriftsartikel (refereegranskat)abstract
- Because night work is becoming more prevalent, we studied whether feeding at different times of a 24-h period would elicit different metabolic responses and whether dietary macronutrient composition would affect these responses. Seven men (26-43 y, 19.9-26.6 kg/m(2)) consumed two isocaloric diets, in a crossover design. The diets were a high carbohydrate (HC) diet [65 energy % (E%) carbohydrates, 20E% fat] and a high fat (HF) diet (40E% carbohydrates, 45E% fat). After a 6-d diet-adjustment period, the men were kept awake for 24 h and the food (continuation of respective diet) was provided as six isocaloric meals (i.e., every 4 h). Energy and substrate turnover, heart rate, mean arterial pressure (MAP), blood glucose, triacylglycerol (TAG), nonesterified fatty acid (NEFA) and glycerol were measured throughout the 24-h period. Significantly higher energy expenditure and NEFA concentration, and lower blood glucose and TAG concentrations were observed when the men consumed the HF diet than when they consumed the HC diet. Significant circadian patterns were seen in body and skin temperature (nadir, 0400-0500 h). When the men consumed the HF diet, significant circadian patterns were seen in fat oxidation (nadir, 0800-1200 h; plateau, 1200-0800 h), heat release (nadir, 0800-1200 h; plateau, 1600-0800 h), heart rate (nadir, 0000 h), blood glucose (nadir, 0800-1200 h; peak, 0000-0400 h), NEFA (nadir, 0800-1200 h; peak, 1200-2000 h) and TAG (nadir, 0800-1200 h; peak, 0400-0800 h) concentrations. Energy expenditure, carbohydrate oxidation, MAP and glycerol concentration did not display circadian patterns. Unequal variances eradicated most circadian effects in the HC-diet data. The increased TAG concentration in response to feeding at 0400 h might be involved in the higher TAG concentrations seen in shift workers. Distinct macronutrient/circadian-dependent postprandial responses were seen in most studied variables.
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| 3. |
- Andersson, Ingalena, et al.
(författare)
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Meal pattern and risk factor evaluation in one-year completers of a weight reduction program for obese men : The 'Gustaf' study
- 2000
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Ingår i: Journal of Internal Medicine. - : Wiley. - 0954-6820 .- 1365-2796. ; 247, s. 30-
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To evaluate changes in meal patterns and in obesity related risk factors after 1 year of treatment in obese men. Design: Data from two 24-h dietary recalls, performed at base-line and after 1 year of treatment, were related to changes in medical risk factors. Setting: Academic obesity unit. Subjects: Sixty-three men, aged 44 (eight) years (mean [SD]) and Base- line Body Mass Index (BMI) 37.4 (4.6) kg m-2, who had completed 1 year of treatment. The men were subdivided by tertiles according to weight change: tertile I (n = 21), mean +0.3 kg, tertile II (n = 21), mean -5.8 kg and tertile III (n = 21), mean -14.2 kg. Main outcome measures: Weight loss, changes in meal patterns and in obesity related medical risk factors. Results: The reported mean energy intake decreased after treatment in tertiles II and III by 700 (1300) kcal (P < 0.05) and 700 (900) kcal (P = 0.001), respectively. In tertile III the energy-% from fat decreased (P < 0.05) with a reciprocal increase in energy-% from protein (P < 0.05). The frequency of snacks of a low nutritional quality decreased (P < 0.01) in tertile III together with an increase in energy-% from 'hot meals of good quality' (P < 0.05). Obesity related risk factors (anthropometry, blood pressure, serum lipid concentrations, blood glucose and plasma insulin) improved in a beneficial way only in tertile III. Conclusions: The weight loss in the successful tertile III men was to a great extent explained by fewer low quality snacks but more energy from high quality meals. These changes reflected the behaviour modification strategy recommended.
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| 4. |
- Calbet, J, et al.
(författare)
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Maximal vascular conductances during whole body upright exercise in humans
- 2004
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Ingår i: The Journal of Physiology. - : Wiley. - 0022-3751 .- 1469-7793. ; 558:1, s. 319-331
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Tidskriftsartikel (refereegranskat)abstract
- That muscular blood flow may reach 2.5 l kg�1 min�1 in the quadriceps muscle has led to the suggestion that muscular vascular conductance must be restrained during whole body exercise to avoid hypotension. The main aim of this study was to determine the maximal arm and leg muscle vascular conductances (VC) during leg and arm exercise, to find out if the maximal muscular vasodilatory response is restrained during maximal combined arm and leg exercise. If during maximal exercise arms and legs had been vasodilated to the observed maximal levels then mean arterial pressure would have dropped at least to 75�77 mmHg in our experimental conditions. It is concluded that skeletal muscle vascular conductance is restrained during whole body exercise in the upright position to avoid hypotension. AVKORTAT ABSTRACT
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| 5. |
- Hertzberg, Annika, et al.
(författare)
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"Relatives are a Resource, but..." : Registered Nurses' Views and Experiences of Relatives of Residents in Nursing Homes
- 2003
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Ingår i: Journal of Clinical Nursing. - : Blackwell. - 0962-1067 .- 1365-2702. ; 12:3, s. 431-441
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Tidskriftsartikel (refereegranskat)abstract
- Registered Nurses (RNs) working in nursing homes in Sweden have obligations towards the residents' relatives, besides the care of residents. Relatives' involvement and satisfaction with the care partly depend on their contacts and communication with the staff. • This study aimed to explore and describe RNs' views and experiences of relatives of residents who live in nursing homes. • Open interviews were conducted with 19 RNs at three nursing homes. The verbatim-transcribed interviews were subjected to qualitative content analysis. • Relatives were seen as a resource (with some restrictions) and nice, although demanding. The RNs saw relatives as part of their work - a part that could be time-consuming and had low priority. • Interviewees noticed a difference between young and old relatives, and between female and male relatives. • A large proportion of accounts could be related to issues about communication and interpersonal relationships with relatives. • Building a trusting relationship with relatives may result in them being involved in residents' care and thus giving the nurses time rather than consuming time.
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| 6. |
- Hertzberg, Annika, et al.
(författare)
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Staff activities and behaviour are the source of many feelings : relatives' interactions and relationships with staff in nursing homes
- 2001
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Ingår i: Journal of Clinical Nursing. - : Blackwell Science. - 0962-1067 .- 1365-2702. ; 10:3, s. 380-388
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Tidskriftsartikel (refereegranskat)abstract
- Family members do not give up their involvement in the life of their older relatives when they move to an institution. Relatives feel that it is they who take the initiative to establish a working relationship with the staff at the nursing home. Relatives want more spontaneous information from staff, particularly about residents' dairy fives, and there is a need for relatives to have opportunities to talk with staff under relaxed conditions. Staff behaviour and activities towards residents and relatives are a source of many feelings for relatives. Relatives' understandings of the challenges faced by staff are not communicated to staff, nor are positive or negative experiences explicitly passed on to staff.
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| 7. |
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| 8. |
- Holmbäck, Ulf, et al.
(författare)
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The Human Body May Buffer Small Differences in Meal Size and Timing during a 24-h Wake Period Provided Energy Balance Is Maintained
- 2003
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Ingår i: Journal of Nutrition. - : Elsevier BV. - 0022-3166 .- 1541-6100. ; 133:9, s. 2748-55
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Tidskriftsartikel (refereegranskat)abstract
- Because approximately 20% of the work force in the industrialized world have irregular working hours, it is pertinent to study the consequences of eating at irregular, especially nighttime hours. We studied the postprandial responses during nocturnal fasting vs. eating throughout a 24-h wake period. Seven healthy males were studied twice in a crossover design. After a 6-d diet adjustment period [high fat diet, 45 energy percent (en%) fat, 40 en% carbohydrates)] with sleep from 2300 to 0700 h, the men were kept awake for 24 h at the metabolic ward and given either 6 isoenergetic meals, i.e., every 4 h (N-eat) or 4 isoenergetic meals from 0800 to 2000 h followed by a nocturnal fast (N-fast), with the same 24-h energy intake. Energy expenditure, substrate utilization, activity, heat release, body temperature and blood variables were measured over 24 h. Energy expenditure and blood glucose, triacylglycerol, insulin and glucagon concentrations were lower and nonesterified fatty acids concentrations were higher during the nocturnal fast than during nocturnal eating (P < 0.05); however, no 24-h differences between the protocols were apparent. Nocturnal fasting slightly altered the secretory patterns of the thyroid hormones and cortisol (P < 0.05). We found no clear indication that it would be more favorable to ingest few larger daytime meals than smaller meals throughout the 24-h period. The body seems to be able to buffer small differences in meal size and timing provided energy balance is maintained.
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| 9. |
- Kecklund, G, et al.
(författare)
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The effects of double-shifts (15.5 hours) on sleep, fatigue and health.
- 2001
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Ingår i: Journal of human ergology. - 0300-8134. ; 30:1-2, s. 53-8
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Tidskriftsartikel (refereegranskat)abstract
- The aim of the present study was to investigate how "double-shifts" (15.5 hours) affects sleep, fatigue and self-rated health. The study was carried out on male construction workers of which 80% were long-distance commuters. The schedule involved two work periods and each work period involved two double shifts in a row. The subjects filled in a sleep/wake diary at 8 times across a year and a questionnaire at 3 times. They also wore an actigraph during one shift cycle. The results showed that sleepiness, and to a certain extent, mental fatigue increased during double shifts and accumulated across days. The short rest time (8.5 hours) between days caused insufficient sleep and approximately 5.5 hours of sleep was obtained between double shifts. Questionnaire data showed that complaints of insufficient sleep, exhaustion on awakening and pain symptoms increased across the year. It was concluded that a shift system involving double shifts has a negative effect on fatigue, recovery and health-related well-being.
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