نتایج جستجو برای: exercise vo2max predictive model using a physical activity pa variable determined by pedometer
تعداد نتایج: 16005759 فیلتر نتایج به سال:
R evised physical activity guidelines for individuals with type 2 diabetes recommend at least 150 min/week of moderate-intensity aerobic physical activity (40–60% of VO2max or 50–70% of maximum heart rate) and/or 90 min/week of aerobic exercise ( 60% of VO2max or 70% of maximum heart rate) (1). In a structured exercise program or in the laboratory setting, levels of physical activity can be clo...
High levels of cardiovascular fitness (CRF) and physical activity (PA) are associated with decreased mortality and risk to develop metabolic diseases. The independent contributions of CRF and PA to metabolic disease risk factors are unknown. We tested the hypothesis that runners who run consistently >50 km/wk and/or >2 marathons/yr for the last 5 years have superior metabolic fitness compared t...
The main test objective of cardiopulmonary function is the maximum oxygen uptake. In order to identify uptake, this study constructs uptake recognition regression equation exercise training respiration and heart rate. Students were selected from high school randomly assigned modeling experimental groups. first phase, general physical characteristics more than 200 people whether vehicle load has...
OBJECTIVES To compare physical activity (PA) reported through pedometer registrations (step counts) with PA reported in four different questionnaires; to compare step count thresholds (7,500, 10,000 and 12,500 steps/d) with the PA guideline of 30 min of moderate to vigorous PA (MVPA) per day. SUBJECTS A sample of 310 healthy adults, mean age 38.7 (sd 11.9) years, volunteered to participate. F...
BACKGROUND Inexpensive, reliable objective methods are needed to measure physical activity (PA) in large scale trials. This study compared the number of pedometer step counts with accelerometer data in pregnant women in free-living conditions to assess agreement between these measures. METHODS Pregnant women (n = 58) with body mass index ≥25 kg/m(2) at median 13 weeks' gestation wore a GT1M A...
BACKGROUND Exercise-based cardiac rehabilitation reduces morbidity and mortality. Walking is a convenient activity suitable for people with cardiac disease. Pedometers count steps, measure walking activity and motivate people to increase physical activity. In this study, patients participating in cardiac telerehabilitation were provided with a pedometer to support motivation for physical activi...
BACKGROUND The number of days of pedometer or accelerometer data needed to reliably assess physical activity (PA) is important for research that examines the relationship with health. While this important research has been completed in young to middle-aged adults, data is lacking in older adults. Further, data determining the number of days of self-reports PA data is also void. The purpose of t...
Previous studies have suggested that physical activity (PA) levels and cardiorespiratory fitness (CRF) impact on the autonomic control of heart rate (HR). However, previous studies evaluating PA levels did not discriminate between incidental PA and regular exercise. We hypothesized that incidental PA "per se" would influence cardiac autonomic indices as assessed via HR variability (HRV) and HR ...
the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...
run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...
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