Diet antioxidant capacity in the group of patients with diagnosed cardiovascular diseases

Analizowano potencjał antyoksydacyjny ORAC dziennych racji pokarmowych (DRP) kobiet z chorobami układu krążenia (n=40) w wieku od 35 do 83 lat. Stan odżywienia kobiet określono wykorzystując wskaźniki BMI, WHR i Bornharda. Badania przeprowadzono wykorzystując półilościowy, zmodyfikowany kwestionariusz częstotliwości spożycia (FFQ) umożliwiający ocenę pobrania w diecie produktów stanowiących źródła naturalnych antyoksydantów. Zdolność racji pokarmowej do przeciwdziałania procesom wolnorodnikowym wyrażono w jednostkach ORAC (oxygen radical absorbance capacity). Rezultaty wskazały na zbyt niską podaż naturalnych przeciwutleniaczy w racjach pokarmowych i duże zróżnicowanie w potencjale antyoksydacyjnym diet uwarunkowane sezonowością spożycia warzyw, owoców i ich przetworów. O ile w okresie letnim, na tle pozostałych miesięcy, potencjał antyoksydacyjny diety był najwyższy i uwarunkowany spożyciem sezonowych owoców i warzyw, to w okresie zimowym był istotne (p<0,001) obniżony i uwarunkowany spożyciem owoców cytrusowych (pomarańczy) i soków owocowo-warzywnych. Innym cennym źródłem przeciwutleniaczy bez względu na sezonowość spożycia okazały się przyprawy. Badania wskazują na konieczność modyfikacji racji pokarmowych w kierunku zwiększenia w nich podaży naturalnych antyoksydantów, szczególnie w okresach ich ograniczonej dostępności na rynku.Total antioxidant capacity of daily diets women (age 35-83y) suffered from cardiovascular dis- eases(n=40) was analyzed. Nutritional status was evaluated by BMI, WHR and Bornhard indicator. The antioxidant capacity of diets was evaluated by modified semi quantitative food frequency questionnaire (FFQ) with opportunity to analyze sources of antioxidants in daily diet. Possibility of daily diet to prevent free radical reactions in organism was expressed by ORAC (oxygen radical absorbance capacity) indicator. Results showed insufficient supply natural antioxidants in daily diet and variety in antioxidant capacity determined by seasonality of the consumption in diet fruits, vegetables and their products. As far as in summer season the highest ORAC was determined by consumption of seasonal fruits and vegetables, in winter studied group consumed more oranges, and fruit-vegetable juices. The other valuable sources antioxidants irrespective of seasonality of the consumption were spices. Studies showed necessity of diets modification to increase total antioxidant diet capacity especially in periods of their limited availability

Comparison of subjective and objective methods to measure the physical activity of non-depressed middle-aged healthy subjects with normal cognitive function and mild cognitive impairment — a cross-sectional study

Abstract This study compared subjective and objective methods of measuring different categories of physical activity in non-depressed middle-aged subjects with normal cognitive function (NCF) and mild cognitive impairment (MCI). In total, 75 participants (NCF: n = 48, MCI: n = 27) were recruited and physical activity was assessed for seven days using the ActiGraph and the International Physical Activity Questionnaire (IPAQ). Anthropometric parameters, body compositions, resting metabolic rate, and energy expenditure were also assessed. ActiGraph data indicated that subjects with NCF were more active than MCI subjects. A comparison of the IPAQ and the ActiGraph data revealed a significant correlation between these methods for total (r = 0.3315, p &lt; 0.01) and moderate (r = 0.3896, p &lt; 0.01) physical activity in the total population and moderate activity (r = 0.2893, p &lt; 0.05) within the NCF group. No associations between these methods were found within the MCI group. Independent predictors of subjectively evaluated total physical activity were alcohol consumption (p = 0.0358) and socio-professional status (p = 0.0288), while weight (p = 0.0285) and the Montreal Cognitive Assessment results (p = 0.0309) were independent predictors of objectively measured physical activity. In conclusion, the long version of IPAQ is a more reliable tool to assess PA in subjects with NCF than those with MCI. More studies are needed to confirm this finding

Subjective self-assessment of physical activity is negatively affected by monitoring awareness in subjects with mild cognitive impairment:a crossover randomised controlled trial

Abstract Objective: Physical activity plays an important role in maintaining mental and physical health. This study assessed the effect of physical activity monitoring awareness on the physical activity level and subjective self-assessment of physical activity in middle-aged subjects with normal cognitive function (NCF) and mild cognitive impairment (MCI). Patients and methods: Thirty-five subjects aged 50–65 years with NCF and MCI were randomised into two experimental groups, each taking part in two one-week intervention periods. Subjects in group A were not aware that their physical activity was monitored in the first week (phase I) and were aware of the monitoring in the second week (phase II), whereas it was the opposite order for group B. Physical activity was assessed using the ActiGraph GT9X accelerometer and International Physical Activity Questionnaire (IPAQ). Results: A total of 32 subjects (MCI: n = 12, NCF: n = 20) completed both intervention periods, with MCI subjects having significantly lower objectively assessed physical activity than NCF participants. Moreover, subjectively assessed physical activity in the MCI group was significantly higher when the participants were unaware of physical activity monitoring. A significant phase-group interaction was found in total (MET-min/d: p = 0.0072; min/d: p = 0.0194) and moderate (MET-min/d: p = 0.0015; min/d: p = 0.0020) physical activity as well as energy expenditure (p = 0.0366) assessed by the IPAQ and in the percentage of sedentary behaviour (p = 0.0330) and the average number of steps (p = 0.0342) assessed by ActiGraph. Conclusions: The awareness of physical activity assessment might decrease the ability to subjectively assess physical activity in subjects with MCI