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Cardiorespiratory fitness

Zhaowei Kong, Shengyan Sun, Min Liu, Qingde Shi
This study was to determine the effects of five-week high-intensity interval training (HIIT) on cardiorespiratory fitness, body composition, blood glucose, and relevant systemic hormones when compared to moderate-intensity continuous training (MICT) in overweight and obese young women. Methods. Eighteen subjects completed 20 sessions of HIIT or MICT for five weeks. HIIT involved 60 × 8 s cycling at ~90% of peak oxygen consumption ([Formula: see text]) interspersed with 12 s recovery, whereas MICT involved 40-minute continuous cycling at 65% of [Formula: see text]...
2016: Journal of Diabetes Research
Joan A Vaccaro, Fatma G Huffman
Background. Approximately 17% of children aged 6-11 years were classified as obese in the United States. Obesity adversely affects physical functioning and leads to reduced quality of life. Heart function for overweight and obese children has not been reported. Methods. Data for this study were from NHANES National Youth Fitness Survey (NNYFS) conducted in conjunction with the National Health and Nutrition Examination Survey (NHANES) in 2012. This study used data from children aged 6-12 (N = 732) that had the cardiorespiratory endurance measure, body mass index for age and sex, and dietary data (N = 682)...
2016: Journal of Obesity
Mahmoud Zaqout, Nathalie Michels, Wolfgang Ahrens, Claudia Börnhorst, Dénes Molnár, Luis A Moreno, Gabriele Eiben, Alfonso Siani, Stalo Papoutsou, Toomas Veidebaum, Stefaan De Henauw
PURPOSE: Exposure to breastfeeding improves the survival, health, and development of children; therefore, breast milk is recommended as the exclusive nutrient source for feeding term infants during the first 6 months. This cross-sectional study aimed to determine the possible association between exposure to exclusive breastfeeding and physical fitness performance in children and, if so, whether this association is influenced by the breastfeeding duration. METHODS: A total of 2853 (52...
October 22, 2016: European Journal of Nutrition
Marc Licker, Wolfram Karenovics, John Diaper, Isabelle Frésard, Frédéric Triponez, Christoph Ellenberger, Raoul Schorer, Bengt Kayser, Pierre-Olivier Bridevaux
BACKGROUND: Impairment in aerobic fitness is a potential modifiable risk factor for postoperative complications. In this randomized controlled trial, we hypothesized that a high-intensity interval training (HIIT) program enhances cardiorespiratory fitness before lung cancer surgery and therefore reduces the risk of postoperative complications. METHODS: Patients with operable lung cancer were randomly assigned to usual care (UC, N=77) or preoperative rehabilitation based on HIIT (Rehab, N=74)...
October 5, 2016: Journal of Thoracic Oncology
Silvana B Sandbakk, Javaid Nauman, Nina Zisko, Øyvind Sandbakk, Nils Petter Aspvik, Dorthe Stensvold, Ulrik Wisløff
OBJECTIVE: To determine whether meeting physical activity (PA) recommendations and/or having high age-specific cardiorespiratory fitness (CRF) attenuate the adverse effect of prolonged sedentary time on cardiovascular risk factor (CV-RF) clustering in older adults. PATIENTS AND METHODS: We conducted a cross-sectional study of Norwegian women (495) and men (379) aged 70 to 77 years from August 22, 2012, through June 30, 2013. Sedentary time and PA were assessed by accelerometers and CRF by directly measured peak oxygen uptake (VO2peak)...
October 8, 2016: Mayo Clinic Proceedings
Scott C Forbes, Nathan Sletten, Cody Durrer, Étienne Myette-Cote, Darren Candow, Jonathan P Little
High-intensity interval training (HIIT) has been shown to improve cardiorespiratory fitness, performance, body composition, and insulin sensitivity. Creatine (Cr) supplementation may augment responses to HIIT, leading to even greater physiological adaptations. The purpose of this study was to determine the effects of four weeks of HIIT (three sessions/week) combined with Cr supplementation in recreationally active females. Seventeen females (age = 23 ± 4 yrs; BMI = 23.4 ± 2.4) were randomly assigned to either Cr (Cr; 0...
October 21, 2016: International Journal of Sport Nutrition and Exercise Metabolism
Felipe B Schuch, Davy Vancampfort, Xuemei Sui, Simon Rosenbaum, Joseph Firth, Justin Richards, Philip B Ward, Brendon Stubbs
Physical activity (PA) is protective from future depression, however, the potential impact of cardiorespiratory fitness (CRF) on the development of depression is less clear. We aimed to investigate if lower levels of CRF are associated with a higher risk for depression onset. Major electronic databases were searched, from inception to January 2016 for prospective cohort studies evaluating the association between CRF and incident depression. Pooled hazard ratio (HR) with 95% confidence intervals (CIs) were calculated...
October 17, 2016: Preventive Medicine
Janet D Morrison, Lori Mayer
PURPOSE: To identify and synthesize the research evidence concerning (1) the relationship between physical activity and cognitive performance in persons with multiple sclerosis (MS) and (2) to review the reported effects of physical activity interventions on neurocognitive performance conducted in this population. METHODS: Relevant peer-reviewed journal articles were identified by searching PubMed, PsychINFO, and SPORTDiscus through May 2016. Full-text articles meeting the inclusion criteria were evaluated for quality using tools developed by the National Institutes of Health...
October 20, 2016: Disability and Rehabilitation
Liang Chen, Jian Kuang, Jian-Hao Pei, Hong-Mei Chen, Zhong Chen, Zhong-Wen Li, Hua-Zhang Yang, Xiao-Ying Fu, Long Wang, Zhi-Jiang Chen, Shui-Qing Lai, Shu-Ting Zhang
BACKGROUND: The aim of this study was to explore factors affecting cardiorespiratory fitness in males and females with different body mass index. METHODS: The National Health and Nutrition Examination Survey 1999-2004 data were used for this retrospective study. Estimated maximal oxygen uptake (VO2max) is surrogate for cardiorespiratory fitness (CRF). Univariate and multivariate linear regression analyses were performed to explore whether study variables were associated with estimated VO2max stratified by gender and BMI categories...
October 21, 2016: Annals of Medicine
Nina Lefeber, Eva Swinnen, Eric Kerckhofs
PURPOSE: The integration of sufficient cardiovascular stress into robot-assisted gait (RAG) training could combine the benefits of both RAG and aerobic training. The aim was to summarize literature data on the immediate effects of RAG compared to walking without robot-assistance on metabolic-, cardiorespiratory- and fatigue-related parameters. METHODS: PubMed and Web of Science were searched for eligible articles till February 2016. Means, SDs and significance values were extracted...
October 20, 2016: Disability and Rehabilitation. Assistive Technology
Pedro R Olivares, Javier García-Rubio
OBJECTIVES: To analyze the associations between different components of fitness and fatness with academic performance, adjusting the analysis by sex, age, socio-economic status, region and school type in a Chilean sample. METHODS: Data of fitness, fatness and academic performance was obtained from the Chilean System for the Assessment of Educational Quality test for eighth grade in 2011 and includes a sample of 18,746 subjects (49% females). Partial correlations adjusted by confounders were done to explore association between fitness and fatness components, and between the academic scores...
2016: PeerJ
Jessica E Middlemiss, Carmel M McEniery
Obesity is an ongoing global epidemic and has adverse consequences for cardiovascular health. Obesity is often associated with hypertension, which is, itself, a common condition and an important cause of morbidity and mortality worldwide. Although animal models of obesity have provided extensive data on the links between obesity and hypertension, a greater understanding of the pathways linking obesity and hypertension in humans is likely to assist translation of animal data, and may, itself, identify important treatment strategies...
October 20, 2016: Hypertension Research: Official Journal of the Japanese Society of Hypertension
John Cairney, Scott Veldhuizen, Sara King-Dowling, Brent E Faught, John Hay
OBJECTIVES: Previous research has shown children with Developmental Coordination Disorder (DCD) have lower cardiorespiratory fitness (CRF) than typically developing (TD) children. This has been hypothesized to be due to an activity deficit, whereby poor motor functioning discourages children from participating in physical activities, but this hypothesis has not been directly tested. In this study, we use longitudinal data to measure the extent to which physical activity explains differences in CRF between children with and without motor coordination deficits...
September 29, 2016: Journal of Science and Medicine in Sport
Susann Weihrauch-Blüher, Stefanie Koormann, Jana Brauchmann, Susanna Wiegand
BACKGROUND: The increasing prevalence of childhood obesity is - amongst other factors - due to changed leisure time habits with decreased physical activity and increased media consumption. However, electronic media such as tablets and smartphones might also provide a novel intervention approach to prevent obesity in childhood and adolescence. OBJECTIVES: A summary of interventions applying electronic media to prevent childhood obesity is provided to investigate short term effects as well as long term results of these interventions...
October 18, 2016: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
Pablo Franquelo-Morales, Mairena Sánchez-López, Blanca Notario-Pacheco, José Miota-Ibarra, Noelia Lahoz-García, Manuel Ángel Gómez-Marcos, Vicente Martínez-Vizcaíno
OBJECTIVE: The objectives of this study were to examine in university students: (a) the mean differences in the HRQoL among fat mass percentage, cardiorespiratory fitness (CRF) and sleep quality categories; and (b) the independent associations among fat mass percentage, CRF, and sleep quality with HRQoL. PARTICIPANTS: 376 students, 18-30 years old, from the University of Castilla-La Mancha in Cuenca, Spain (during 2009-2010). METHOD: Cross-sectional study measuring % fat mass (DXA), CRF (20-m shuttle run test), sleep quality (Pittsburgh Sleep Quality Index), and HRQoL (SF-12 questionnaire)...
October 18, 2016: Behavioral Sleep Medicine
George Moschonis, Ellen G H M van den Heuvel, Christina Mavrogianni, Cécile M Singh-Povel, Michalis Leotsinidis, Yannis Manios
The benefits of dairy consumption seem to extend beyond its significant contribution to ensuring nutrient intake adequacy as indicated by the favourable associations with several health outcomes reported by different studies. The aims of the present study were to examine the associations of milk consumption with fitness, anthropometric and biochemical indices in children and further explore whether the observed associations are attributed to vitamins B₂ and B12 derived from milk. A representative subsample of 600 children aged 9-13 years participating in the Healthy Growth Study was examined...
October 13, 2016: Nutrients
Peter Kokkinos
A plethora of evidence exists supporting that structured aerobic exercise or activities that increase cardiorespiratory fitness (CRF) lower resting blood pressure (BP) in patients with hypertension (HTN). Relatively few studies have assessed the effects of anaerobic or resistance exercise on BP. Thus, its role in managing HTN is not defined. Also, possible risks related with exercise in hypertensive patients have not been adequately addressed.In addition to lowering BP, CRF attenuates the incidence of HTN. A substantial part of the age-related progression to HTN is not an inevitable outcome of aging as once thought, but a consequence of lifestyle characterized by high-fat/salt diets and physical inactivity...
September 2016: Journal of Hypertension
Peter Kokkinos, Narayan Puneet, Tsimploulis Apostolos, Doumas Michael, Pittaras Andreas, Faselis Charles, Myers Jonathan
OBJECTIVE: Hypertension is one of the most common risk factors for congestive heart failure (CHF). Evidence suggests that increased fitness may attenuate the risk for CHF in the general population. However, the association between fitness and CHF incidence in hypertensive patients has not been assessed. DESIGN AND METHOD: A total of 8,725 hypertensive men (mean age 60 ± 10) from Washington DC and Palo Alto Veterans Affairs Medical Centers underwent routine exercise tolerance testing...
September 2016: Journal of Hypertension
Apostolos Tsimploulis, Michael Doumas, Andreas Pittaras, Charles Faselis, Jonathan Myers, Peter Kokkinos
OBJECTIVE: Chronological aging in healthy subjects is associated with declines in muscle mass, strength, endurance, and aerobic fitness. Older individuals respond favorably to exercise, suggesting that physical inactivity plays an important role in age-related dysfunctions. Conversely, physical activity and improved exercise capacity is associated with lower mortality risk in hypertensive individuals. However, the impact of increased exercise capacity in older hypertensive individuals has not been investigated extensively...
September 2016: Journal of Hypertension
Päivi Kolu, Kari Tokola, Markku Kankaanpää, Jaana Suni
STUDY DESIGN: A cross-sectional study, part of a randomized controlled trial. OBJECTIVE: To evaluate the association of physical activity, cardiorespiratory fitness, and neuromuscular fitness with direct health-care costs and sickness-related absence among nursing personnel with nonspecific low back pain. SUMMARY OF BACKGROUND DATA: Low back pain creates a huge economic burden due to increased sick leave and use of health-care services. METHODS: Female nursing personnel with nonspecific low back pain were included (n = 219)...
October 6, 2016: Spine
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