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Resistance training meta-analysis

Jung-Hoon Lee, Ruda Lee, Moon-Hyon Hwang, Marc T Hamilton, Yoonjung Park
Background: Vascular endothelial dysfunction induced by hyperglycemia and elevated insulin resistance is a potent risk factor for cardiovascular disease and likely contributes to multiple chronic disease complications associated with aging. The aim of this study was to systematically review and quantify the effects of exercise on endothelial function (EF) in type 2 diabetes (T2D). Methods: Five electronic databases were searched (until June 2017) for studies that met the following criteria: (i) randomized controlled trials; (ii) T2D aged ≥ 18 years; (iii) measured EF by brachial artery flow-mediated dilation (FMD); (iv) structured and supervised exercise intervention for ≥ 8 weeks...
2018: Diabetology & Metabolic Syndrome
Agathe D Jadczak, Naresh Makwana, Natalie Luscombe-Marsh, Renuka Visvanathan, Timothy J Schultz
OBJECTIVES: This umbrella review aimed to determine the effectiveness of exercise interventions, alone or in combination with other interventions, in improving physical function in community-dwelling older people identified as pre-frail or frail. INTRODUCTION: Exercise is said to have a positive impact on muscle mass and strength which improves physical function and hence is beneficial for the treatment of frailty. Several systematic reviews discuss the effects of exercise interventions on physical function parameters, such as strength, mobility, gait, balance and physical performance, and indicate that multi-component exercise, including resistance, aerobic, balance and flexibility training, appears to be the best way in which to improve physical function parameters in frail older people...
March 2018: JBI Database of Systematic Reviews and Implementation Reports
Miguel S Conceição, Felipe C Vechin, Manoel Lixandrão, Felipe Damas, Cleiton A Libardi, Valmor Tricoli, Hamilton Roschel, Donny Camera, Carlos Ugrinowitsch
INTRODUCTION: The myonuclear domain theory postulates that myonuclei are added to muscle fibres when increases in fibre cross-sectional area (i.e. hypertrophy) are ≥26%. However, recent studies have reported increased myonuclear content with lower levels (e.g. 12%) of muscle fibre hypertrophy. PURPOSE: To determine whether a muscle fibre hypertrophy "threshold" is required to drive the addition of new myonuclei to existing muscle fibres. METHODS: Studies of resistance training (RT), endurance training (ET), with or without nutrient (i...
March 5, 2018: Medicine and Science in Sports and Exercise
Philip J J Herrod, Brett Doleman, James E M Blackwell, Francesca O'Boyle, John P Williams, Jonathan N Lund, Bethan E Phillips
The incidence of hypertension increases with advancing age and represents a significant burden of disease. Lifestyle modification represents the first-line intervention in treatment algorithms; however, the majority of evidence for this comes from studies involving young participants using interventions that may not always be feasible in the elderly. This manuscript presents a systematic review of all randomized controlled trials involving participants with a mean age of 65 or over investigating nonpharmacological strategies to reduce blood pressure (BP)...
February 2, 2018: Journal of the American Society of Hypertension: JASH
Mansueto Gomes Neto, Filipe Ferrari Ribeiro de Lacerda, Antonio Alberto Lopes, Bruno Prata Martinez, Micheli Bernardone Saquetto
OBJECTIVE: To determine the effects of different intradialytic exercise training modalities on physical functioning and health-related quality of life of maintenance hemodialysis patients. METHODS: We searched MEDLINE, Cochrane Trials Register and CINAHL for controlled trials that evaluated the effects of intradialytic exercise training for maintenance hemodialysis patients and published from the earliest available date to December 2017. Weighted mean difference and 95% confidence interval (CI) were calculated, and heterogeneity was assessed using the I2 test...
February 1, 2018: Clinical Rehabilitation
Chih-Chin Lai, Yu-Kang Tu, Tyng-Guey Wang, Yi-Ting Huang, Kuo-Liong Chien
Background: A variety of different types of exercise are promoted to improve muscle strength and physical performance in older people. Objective: We aimed to determine the relative effects of resistance training, endurance training and whole-body vibration on lean body mass, muscle strength and physical performance in older people. Design: A systematic review and network meta-analysis. Subjects: Adults aged 60 and over...
February 17, 2018: Age and Ageing
Jozo Grgic, Brad J Schoenfeld, Timothy B Davies, Bruno Lazinica, James W Krieger, Zeljko Pedisic
BACKGROUND: Current recommendations on resistance training (RT) frequency for gains in muscular strength are based on extrapolations from limited evidence on the topic, and thus their practical applicability remains questionable. OBJECTIVE: To elucidate this issue, we conducted a systematic review and meta-analysis of the studies that compared muscular strength outcomes with different RT frequencies. METHODS: To carry out this review, English-language literature searches of the PubMed/MEDLINE, Scopus, and SPORTDiscus databases were conducted...
February 22, 2018: Sports Medicine
Robert W Davies, Brian P Carson, Philip M Jakeman
Whey protein (WP) is a widely consumed nutritional supplement, known to enhance strength and muscle mass during resistance training (RT) regimens. Muscle protein anabolism is acutely elevated following RT, which is further enhanced by WP. As a result, there is reason to suggest that WP supplementation may be an effective nutritional strategy for restoring the acute loss of contractile function that occurs following strenuous RT. This systematic review and meta-analysis provides a synthesis of the literature to date, investigating the effect of WP supplementation on the recovery of contractile function in young, healthy adults...
February 16, 2018: Nutrients
María Medrano, Cristina Cadenas-Sanchez, Celia Álvarez-Bueno, Iván Cavero-Redondo, Jonatan R Ruiz, Francisco B Ortega, Idoia Labayen
The main purposes of this study were to elucidate the effects of supervised-exercise training (ET) interventions on hepatic fat content and on non-alcoholic fatty liver disease (NAFLD) prevalence in children and adolescents and to provide information about the optimal ET prescription (type, intensity, volume, and frequency) needed to reduce hepatic fat content in youths. Supervised-ET interventions performed in children and adolescents (6-19 years) that provided results of exercise effects on hepatic fat content or NAFLD prevalence were included...
February 13, 2018: Progress in Cardiovascular Diseases
M J Pearson, S F Mungovan, N A Smart
Elevated levels of pro-inflammatory markers are evident in patients with heart failure and are associated with disease severity and prognosis. Exercise training has been shown to reduce circulating levels of pro-inflammatory cytokines and other pro-inflammatory markers in healthy and clinical populations. The aim of the systematic review and meta-analysis was to investigate the effect of aerobic (AT) and resistance training (RT) interventions on circulating concentrations of inflammatory markers; tumour necrosis factor-alpha (TNF-α), interleukin 6 (IL-6), C-reactive protein (CRP), fibrinogen, soluble intercellular adhesion molecule (sICAM) and soluble vascular adhesion molecule (sVCAM) in heart failure patients...
February 2, 2018: Heart Failure Reviews
Ricardo Berton, Manoel E Lixandrão, Claudio M Pinto E Silva, Valmor Tricoli
Jump performance is considered an important factor in many sports. Thus, strategies such as weightlifting (WL) exercises, traditional resistance training (TRT) and plyometric training (PT) are effective at improving jump performance. However, it is not entirely clear which of these strategies can enable greater improvements on jump height. Thus, the purpose of the meta-analysis was to compare the improvements on countermovement jump (CMJ) performance between training methods which focus on WL exercises, TRT, and PT...
February 1, 2018: Journal of Sports Sciences
K Hidayat, G-C Chen, Y Wang, Z Zhang, X Dai, I M Y Szeto, L-Q Qin
BACKGROUND: Older adults experience age-related physiological changes that affect body weight and body composition. In general, nutrition and exercise have been identified as potent stimulators of protein synthesis in skeletal muscle. Milk proteins are excellent sources of all the essential amino acids and may represent an ideal protein source to promote muscle anabolism in older adults undergoing resistance training. However, several randomized control trials (RCTs) have yielded mixed results on the effects of milk proteins supplementation in combination with resistance training on body weight and composition...
2018: Journal of Nutrition, Health & Aging
Clemens Scott Kruse, Priyanka Karem, Kelli Shifflett, Lokesh Vegi, Karuna Ravi, Matthew Brooks
Introduction and objective Studies on telemedicine have shown success in reducing the geographical and time obstacles incurred in the receipt of care in traditional modalities with the same or greater effectiveness; however, there are several barriers that need to be addressed in order for telemedicine technology to spread. The aim of this review is to evaluate barriers to adopting telemedicine worldwide through the analysis of published work. Methods The authors conducted a systematic literature review by extracting the data from the Cumulative Index of Nursing and Allied Health Literature (CINAHL) and PubMed (MEDLINE) research databases...
January 2018: Journal of Telemedicine and Telecare
Mageshbabu Ramamurthy, Sathish Sankar, Rajesh Kannangai, Balaji Nandagopal, Gopalan Sridharan
This review is focused at exploring the strengths of modern technology driven data compiled in the areas of virus gene sequencing, virus protein structures and their implication to viral diagnosis and therapy. The information for virome analysis (viromics) is generated by the study of viral genomes (entire nucleotide sequence) and viral genes (coding for protein). Presently, the study of viral infectious diseases in terms of etiopathogenesis and development of newer therapeutics is undergoing rapid changes...
December 2017: Virusdisease
Efrossini D Patsou, Georgios D Alexias, Fotios G Anagnostopoulos, Michalis V Karamouzis
BackgroundBreast cancer is one of the most common cancers affecting women worldwide, and depressive symptoms are disturbing side effects of cancer diagnosis and treatment. Physical activity and exercise have emerged as an alternative treatment in handling psychological distress throughout breast cancer survivorship. AimThe aim of this review was to present the results of (1) physical activity and (2) exercise interventions in terms of type and duration regarding depressive symptoms among breast cancer survivors during and after treatment...
2017: ESMO Open
Joaquin Calatayud, Jonas Vinstrup, Markus D Jakobsen, Emil Sundstrup, Juan Carlos Colado, Lars L Andersen
This study evaluated the influence of different attentional foci for varied grip widths in the bench press. Eighteen resistance-trained men were familiarized with the procedure and performed a one-repetition maximum (1RM) test during Session 1. In Session 2, they used three different standardized grip widths (100%, 150%, and 200% of biacromial width distance) in random order at 50% of 1RM while also engaged in three different attention focus conditions (external focus on the bench press, internal focus on pectoralis major muscles, and internal focus on triceps brachii muscles)...
April 2018: Perceptual and Motor Skills
Francisco V Santos, Gaspar R Chiappa, Sergio Henrique Rodolpho Ramalho, Alexandra Correa Gervazoni Balbuena de Lima, Fausto Stauffer Junqueira de Souza, Lawrence P Cahalin, João Luiz Quagliotti Durigan, Isac de Castro, Gerson Cipriano
Recent literature suggests that resistance training (RT) improves peak oxygen uptake ([Formula: see text] peak), similarly to aerobic exercise (AE) in patients with heart failure (HF), but its effect on cardiac remodeling is controversial. Thus, we examined the effects of RT and AE on [Formula: see text] peak and cardiac remodeling in patients with heart failure (HF) via a systematic review and meta-analysis. MEDLINE, EMBASE, Cochrane Library and CINAHL, AMEDEO and PEDro databases search were extracted study characteristics, exercise type, and ventricular outcomes...
January 2018: Heart Failure Reviews
Pedrode Camargo Guizelini, Rafael Alves de Aguiar, Benedito Sérgio Denadai, Fabrizio Caputo, Camila Coelho Greco
Rapid force capacity, identified by rate of rise in contractile force at the onset of contraction, i.e., the rate of force development (RFD), has been considered an important neuromuscular parameter of physical fitness in elderly individuals. Randomized control studies conducted in adults have found that resistance training may elicit different outcomes in terms of RFD and muscle strength. Thus, the main purpose of this study was to review systematically the literature for studies regarding the influence of resistance training on muscle strength and RFD in elderly persons...
February 2018: Experimental Gerontology
Philip D Chilibeck, Mojtaba Kaviani, Darren G Candow, Gordon A Zello
The loss of muscle mass and strength with aging results in significant functional impairment. Creatine supplementation has been used in combination with resistance training as a strategy for increasing lean tissue mass and muscle strength in older adults, but results across studies are equivocal. We conducted a systematic review and meta-analysis of randomized controlled trials of creatine supplementation during resistance training in older adults with lean tissue mass, chest press strength, and leg press strength as outcomes by searching PubMed and SPORTDiscus databases...
2017: Open Access Journal of Sports Medicine
Kanchana Srisawat, Sam O Shepherd, Paulo J Lisboa, Jatin G Burniston
We performed a systematic review and meta-analysis of proteomics literature that reports human skeletal muscle responses in the context of either pathological decline associated with obesity/T2DM and physiological adaptations to exercise training. Literature was collected from PubMed and DOAJ databases following PRISMA guidelines using the search terms 'proteom*', and 'skeletal muscle' combined with either 'obesity, insulin resistance, diabetes, impaired glucose tolerance' or 'exercise, training'. Eleven studies were included in the systematic review, and meta-analysis was performed on a sub-set (four studies) of the reviewed literature that reported the necessary primary data...
November 11, 2017: Proteomes
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