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Physical activity and the risk of heart failure: a systematic review and dose-response meta-analysis of prospective studies.
Aune, D, Schlesinger, S, Leitzmann, MF, Tonstad, S, Norat, T, Riboli, E, Vatten, LJ
European journal of epidemiology. 2021;(4):367-381
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Abstract
Although physical activity is an established protective factor for cardiovascular diseases such as ischemic heart disease and stroke, less is known with regard to the association between specific domains of physical activity and heart failure, as well as the association between cardiorespiratory fitness and heart failure. We conducted a systematic review and meta-analysis of prospective observational studies to clarify the relations of total physical activity, domains of physical activity and cardiorespiratory fitness to risk of heart failure. PubMed and Embase databases were searched up to January 14th, 2020. Summary relative risks (RRs) were calculated using random effects models. Twenty-nine prospective studies (36 publications) were included in the review. The summary RRs for high versus low levels were 0.77 (95% CI 0.70-0.85, I2 = 49%, n = 7) for total physical activity, 0.74 (95% CI 0.68-0.81, I2 = 88.1%, n = 16) for leisure-time activity, 0.66 (95% CI 0.59-0.74, I2 = 0%, n = 2) for vigorous activity, 0.81 (95% CI 0.69-0.94, I2 = 86%, n = 3) for walking and bicycling combined, 0.90 (95% CI 0.86-0.95, I2 = 0%, n = 3) for occupational activity, and 0.31 (95% CI 0.19-0.49, I2 = 96%, n = 6) for cardiorespiratory fitness. In dose-response analyses, the summary RRs were 0.89 (95% CI 0.83-0.95, I2 = 67%, n = 4) per 20 MET-hours per day of total activity and 0.71 (95% CI 0.65-0.78, I2 = 85%, n = 11) per 20 MET-hours per week of leisure-time activity. Nonlinear associations were observed in both analyses with a flattening of the dose-response curve at 15-20 MET-hours/week for leisure-time activity. These findings suggest that high levels of total physical activity, leisure-time activity, vigorous activity, occupational activity, walking and bicycling combined and cardiorespiratory fitness are associated with reduced risk of developing heart failure.
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Cocoa might improve walking performance in PAD.
Huynh, K
Nature reviews. Cardiology. 2020;(5):266
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Contemporary Nutrition Strategies to Optimize Performance in Distance Runners and Race Walkers.
Burke, LM, Jeukendrup, AE, Jones, AM, Mooses, M
International journal of sport nutrition and exercise metabolism. 2019;(2):117-129
Abstract
Distance events in Athletics include cross country, 10,000-m track race, half-marathon and marathon road races, and 20- and 50-km race walking events over different terrain and environmental conditions. Race times for elite performers span ∼26 min to >4 hr, with key factors for success being a high aerobic power, the ability to exercise at a large fraction of this power, and high running/walking economy. Nutrition-related contributors include body mass and anthropometry, capacity to use fuels, particularly carbohydrate (CHO) to produce adenosine triphosphate economically over the duration of the event, and maintenance of reasonable hydration status in the face of sweat losses induced by exercise intensity and the environment. Race nutrition strategies include CHO-rich eating in the hours per days prior to the event to store glycogen in amounts sufficient for event fuel needs, and in some cases, in-race consumption of CHO and fluid to offset event losses. Beneficial CHO intakes range from small amounts, including mouth rinsing, in the case of shorter events to high rates of intake (75-90 g/hr) in the longest races. A personalized and practiced race nutrition plan should balance the benefits of fluid and CHO consumed within practical opportunities, against the time, cost, and risk of gut discomfort. In hot environments, prerace hyperhydration or cooling strategies may provide a small but useful offset to the accrued thermal challenge and fluid deficit. Sports foods (drinks, gels, etc.) may assist in meeting training/race nutrition plans, with caffeine, and, perhaps nitrate being used as evidence-based performance supplements.
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Clinical measures of balance in people with type two diabetes: A systematic literature review.
Dixon, CJ, Knight, T, Binns, E, Ihaka, B, O'Brien, D
Gait & posture. 2017;:325-332
Abstract
Approximately 422 million people have diabetes mellitus worldwide, with the majority diagnosed with type 2 diabetes mellitus (T2DM). The complications of diabetes mellitus include diabetic peripheral neuropathy (DPN) and retinopathy, both of which can lead to balance impairments. Balance assessment is therefore an integral component of the clinical assessment of a person with T2DM. Although there are a variety of balance measures available, it is uncertain which measures are the most appropriate for this population. Therefore, the aim of this study was to conduct a systematic review on clinical balance measures used with people with T2DM and DPN. Databases searched included: CINAHL plus, MEDLINE, SPORTDiscus, Dentistry and Oral Sciences source, and SCOPUS. Key terms, inclusion and exclusion criteria were used to identify appropriate studies. Identified studies were critiqued using the Downs and Black appraisal tool. Eight studies were included, these studies incorporated a total of ten different clinical balance measures. The balance measures identified included the Dynamic Balance Test, balance walk, tandem and unipedal stance, Functional Reach Test, Clinical Test of Sensory Interaction and Balance, Berg Balance Scale, Tinetti Performance-Oriented Mobility Assessment, Activity-Specific Balance Confidence Scale, Timed Up and Go test, and the Dynamic Gait Index. Numerous clinical balance measures were used for people with T2DM. However, the identified balance measures did not assess all of the systems of balance, and most had not been validated in a T2DM population. Therefore, future research is needed to identify the validity of a balance measure that assesses these systems in people with T2DM.
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How Physically Active Are People Following Stroke? Systematic Review and Quantitative Synthesis.
Fini, NA, Holland, AE, Keating, J, Simek, J, Bernhardt, J
Physical therapy. 2017;(7):707-717
Abstract
BACKGROUND Mobility limitations are common following stroke and frequently lead to poor participation in physical activity (PA). PURPOSE The purpose of this study was to describe PA across the various stages following stroke (acute, subacute, and chronic). DATA SOURCES Searches were conducted in 5 databases. STUDY SELECTION Eligible studies included participants with stroke whose PA was quantitatively measured for at least 4 hours in a single session. Two reviewers independently reviewed titles and abstracts. DATA EXTRACTION One reviewer extracted data and assessed quality using the Downs and Black checklist. Weighted means were calculated for PA outcomes. DATA SYNTHESIS Searches yielded 103 eligible papers including 5306 participants aged 21 to 96 years. Devices (eg, activity monitors) were used in 73 papers, and behavioral mapping (observational monitoring) in 30. Devices show that people with stroke took on average 5535 steps per day (n = 406, 10 studies) in the subacute phase and 4078 steps (n = 1280, 32 studies) in the chronic phase. Average daily walking duration (% measured time) was higher in the chronic phase (9.0%, n = 100) than subacute (1.8%, n = 172), and sedentary time was >78% regardless of time post stroke. Acute data were lacking for these variables. Matched healthy individuals took an average of 8338 steps per day (n = 129). Behavioral mapping showed time in bed was higher in the acute than subacute phase (mean 45.1% versus 23.8%), with similar time spent sitting (mean 37.6% versus 32.6%). LIMITATIONS Limitations of this review include not pooling data reported as medians. CONCLUSIONS Physical activity levels do not meet guidelines following stroke. Time spent inactive and sedentary is high at all times. Increasing PA and developing standardized activity targets may be important across all stages of stroke recovery.
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Mild cognitive impairment, from theory to practical intervention: "Camminando e leggendo… ricordo" (Walking and reading… I remember), an action plan. The Treviso Dementia (TREDEM) Registry.
Gallucci, M, Mazzetto, M, Spagnolo, P, Aricò, M, Bergamelli, C, Oddo, MG, Gallo, G, Astolfo, P, Di Giorgi, E, Vanacore, N
Annali dell'Istituto superiore di sanita. 2016;(2):240-8
Abstract
Dementia is one of the most disabling health conditions in older people. Increasing attention is paid to the preclinical phase of dementia and to the prevention programs to reduce the number of patients in the future. Aims of the current study are: a) to present Mild Cognitive Impairment (MCI) as a heterogeneous risk factor and to expose the relationship between cognitive impairment and lifestyles such as physical activity, Mediterranean diet, reading and socialization; b) to present a model, called "Camminando e leggendo… ricordo" (CLR), as a practical experience of secondary prevention aimed at MCI older people. The CLR model is composed of a program of physical and reading activities in group to promote healthy lifestyles. Here we present a protocol to evaluate the effectiveness of our intervention model. A multidimensional geriatric assessment will be carried out. A questionnaire for the detection of frailty, disability and for the adherence to the Mediterranean diet will be administered. The Psychological General Well-Being Index (PGWBI) will be used to assess the quality of life. CLR is an intervention model for secondary prevention in MCI subjects. It is the description of a practical proposal aimed at improving lifestyles and reducing the risk of dementia.
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Is there evidence that walking groups have health benefits? A systematic review and meta-analysis.
Hanson, S, Jones, A
British journal of sports medicine. 2015;(11):710-5
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Abstract
OBJECTIVE To assess the health benefits of outdoor walking groups. DESIGN Systematic review and meta-analysis of walking group interventions examining differences in commonly used physiological, psychological and well-being outcomes between baseline and intervention end. DATA SOURCES Seven electronic databases, clinical trial registers, grey literature and reference lists in English language up to November 2013. ELIGIBILITY CRITERIA Adults, group walking outdoors with outcomes directly attributable to the walking intervention. RESULTS Forty-two studies were identified involving 1843 participants. There is evidence that walking groups have wide-ranging health benefits. Meta-analysis showed statistically significant reductions in mean difference for systolic blood pressure -3.72 mm Hg (-5.28 to -2.17) and diastolic blood pressure -3.14 mm Hg (-4.15 to -2.13); resting heart rate -2.88 bpm (-4.13 to -1.64); body fat -1.31% (-2.10 to -0.52), body mass index -0.71 kg/m(2) (-1.19 to -0.23), total cholesterol -0.11 mmol/L (-0.22 to -0.01) and statistically significant mean increases in VO(2max) of 2.66 mL/kg/min (1.67-3.65), the SF-36 (physical functioning) score 6.02 (0.51 to 11.53) and a 6 min walk time of 79.6 m (53.37-105.84). A standardised mean difference showed a reduction in depression scores with an effect size of -0.67 (-0.97 to -0.38). The evidence was less clear for other outcomes such as waist circumference fasting glucose, SF-36 (mental health) and serum lipids such as high-density lipids. There were no notable adverse side effects reported in any of the studies. CONCLUSIONS Walking groups are effective and safe with good adherence and wide-ranging health benefits. They could be a promising intervention as an adjunct to other healthcare or as a proactive health-promoting activity.