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"Blood flow restriction"

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https://www.readbyqxmd.com/read/27931053/hemodynamic-responses-to-blood-flow-restriction-and-resistance-exercise-to-muscular-failure
#1
C A Libardi, A M Catai, M Miquelini, A Borghi-Silva, V Minatel, I F Alvarez, J C Milan-Mattos, H Roschel, V Tricoli, C Ugrinowitsch
The aim of the present study was to compare hemodynamic responses between blood flow-restricted resistance exercise (BFR-RE), high-intensity resistance exercise (HI-RE) and low-intensity resistance exercise (LI-RE) performed to muscular failure. 12 men (age: 20±3 years; body mass: 73.5±9 kg; height: 174±6 cm) performed 4 sets of leg press exercises using BFR-RE (30% of 1-RM), HI-RE (80% of 1-RM) and LI-RE (30% of 1-RM) protocols. Systolic (SBP) and diastolic blood pressure (DBP), heart rate (HR), stroke volume (SV), cardiac output (CO) and total peripheral vascular resistance (TPR) were measured on a beat-to-beat continuous basis by a noninvasive photoplethysmographic arterial pressure device...
December 8, 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27837041/acute-effects-of-resistance-exercise-with-continuous-and-intermittent-blood-flow-restriction-on-hemodynamic-measurements-and-perceived-exertion
#2
Gabriel R Neto, Jefferson S Novaes, Verônica P Salerno, Michel M Gonçalves, Bruna K L Piazera, Thais Rodrigues-Rodrigues, Maria S Cirilo-Sousa
This study compared the acute effects of low-intensity resistance exercise (RE) sessions for the upper limb with continuous and intermittent blood flow restriction (BFR) and high-intensity RE with no BFR on lactate, heart rate, double product (DP; heart rate times systolic blood pressure), and perceived exertion (RPE). Ten recreationally trained men (1-5 years strength training; age mean = 19 ± 0.82 years) performed three experimental protocols in random order: (a) low-intensity RE at 20% one-repetition maximum (1RM) with intermittent BFR (LI + IBFR), (b) low-intensity RE at 20% 1RM with continuous BFR (LI + CBFR), and (c) high-intensity RE at 80% 1RM...
November 11, 2016: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/27826654/physiological-responses-to-interval-endurance-exercise-at-different-levels-of-blood-flow-restriction
#3
Rogério B Corvino, Harry B Rossiter, Thiago Loch, Jéssica C Martins, Fabrizio Caputo
PURPOSE: We aimed to identify a blood flow restriction (BFR) endurance exercise protocol that would both maximize cardiopulmonary and metabolic strain, and minimize the perception of effort. METHODS: Twelve healthy males (23 ± 2 years, 75 ± 7 kg) performed five different exercise protocols in randomized order: HI, high-intensity exercise starting at 105% of the incremental peak power (P peak); I-BFR30, intermittent BFR at 30% P peak; C-BFR30, continuous BFR at 30% P peak; CON30, control exercise without BFR at 30% P peak; I-BFR0, intermittent BFR during unloaded exercise...
November 8, 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/27749358/blood-flow-restriction-training-after-knee-arthroscopy-a-randomized-controlled-pilot-study
#4
David J Tennent, Christina M Hylden, Anthony E Johnson, Travis C Burns, Jason M Wilken, Johnny G Owens
INTRODUCTION: Quadriceps strength after arthroscopic knee procedures is frequently diminished several years postoperation. Blood flow restriction (BFR) training uses partial venous occlusion while performing submaximal exercise to induce muscle hypertrophy and strength improvements. The purpose of this study was to evaluate BFR as a postoperative therapeutic intervention after knee arthroscopy. METHODS: A randomized controlled pilot study comparing physical therapy with and without BFR after knee arthroscopy was conducted...
October 5, 2016: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27730736/let-s-talk-about-sex-where-are-the-young-females-in-blood-flow-restriction-research
#5
Brittany R Counts, Lindy M Rossow, Kevin T Mattocks, J Grant Mouser, Matthew B Jessee, Samuel L Buckner, Scott J Dankel, Jeremy P Loenneke
Low-load resistance exercise with the blood flow restriction (BFR) has been shown to increase muscle size similar to that of traditional high-load resistance training. Throughout the BFR literature, there is a vast difference between the quantity of young females included in the literature compared to young males, older males and older females. Therefore, the purpose of this minireview is to discuss the underrepresentation of young females in the BFR literature and review the potential physiologic reasons as to why they may have been excluded...
October 11, 2016: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/27726197/acute-and-long-term-effects-of-blood-flow-restricted-training-on-heat-shock-proteins-and-endogenous-antioxidant-systems
#6
K T Cumming, S Ellefsen, B R Rønnestad, I Ugelstad, T Raastad
Blood flow restricted exercise (BFRE) with low loads has been demonstrated to induce considerable stress to exercising muscles. Muscle cells have developed a series of defensive systems against exercise-induced stress. However, little is known about acute and long-term effects of BFRE training on these systems. Nine previously untrained females trained low-load BFRE and heavy load strength training (HLS) on separate legs and on separate days to investigate acute and long-term effects on heat shock proteins (HSP) and endogenous antioxidant systems in skeletal muscles...
October 10, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27717653/the-time-dependence-of-the-effect-of-ischemic-preconditioning-on-successive-sprint-swimming-performance
#7
Felipe D Lisbôa, Tiago Turnes, Rogério S O Cruz, João A G Raimundo, Gustavo S Pereira, Fabrizio Caputo
OBJECTIVES: The present study aimed to determine the effects of ischemic preconditioning on performance in three successive 50-m swimming trials and to measure stroke rate, stroke length and blood lactate accumulation. DESIGN: Counterbalanced, repeated-measures cross-over study. METHODS: On two separate days, eleven competitive male swimmers (20±3 years, 182±5cm, 77±5kg) performed three successive 50-m trials in a 50-m swimming pool, preceded by intermittent bilateral cuff inflation (4× 5-min of blood flow restriction+5-min of cuff deflation) at either 220 for thighs and 180mmHg for arms (ischemic preconditioning) or 20mmHg for both limbs (control-treatment)...
September 20, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/27668404/repeated-blood-flow-restriction-induces-muscle-fiber-hypertrophy
#8
Mizuki Sudo, Soichi Ando, Yutaka Kano
INTRODUCTION: We recently developed an animal model to investigate the effects of eccentric contraction (ECC) and blood flow restriction (BFR) on muscle tissue at the cellular level. This study clarified the effects of repeated BFR, ECC, and BFR combined with ECC (BFR+ECC) on muscle fiber hypertrophy. METHODS: Male Wistar rats were assigned to 3 groups: BFR, ECC, and BFR+ECC. The contralateral leg in the BFR group served as a control (CONT). Muscle fiber cross sectional area (CSA) of the tibialis anterior was determined after the respective treatments for 6 weeks...
September 26, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/27634603/blood-flow-restricted-exercise-compared-to-high-load-resistance-exercise-during-unloading
#9
Kyle J Hackney, Meghan E Downs, Lori Ploutz-Snyder
BACKGROUND: Bed rest studies have shown that high load (HL) resistance training can mitigate the loss of muscle size and strength during musculoskeletal unloading; however, not all individuals are able to perform HL resistance exercise. Blood flow restricted (BFR) resistance exercise may be a novel way to prevent maladaptation to unloading without requiring HL exercise equipment. This study evaluated the muscular training adaptations to HL and BFR resistance training during unilateral lower limb suspension (ULLS), a human limb unloading model...
August 2016: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/27613141/transcriptional-profiling-of-rat-skeletal-muscle-hypertrophy-under-restriction-of-blood-flow
#10
Shouyu Xu, Xueyun Liu, Zhenhuang Chen, Gaoquan Li, Qin Chen, Guoqing Zhou, Ruijie Ma, Xinmiao Yao, Xiao Huang
Blood flow restriction (BFR) under low-intensity resistance training (LIRT) can produce similar effects upon muscles to that of high-intensity resistance training (HIRT) while overcoming many of the restrictions to HIRT that occurs in a clinical setting. However, the potential molecular mechanisms of BFR induced muscle hypertrophy remain largely unknown. Here, using a BFR rat model, we aim to better elucidate the mechanisms regulating muscle hypertrophy as induced by BFR and reveal possible clinical therapeutic targets for atrophy cases...
December 15, 2016: Gene
https://www.readbyqxmd.com/read/27584493/effect-of-eccentric-exercise-with-blood-flow-restriction-on-muscle-activation-and-microvascular-oxygenation-2882-board-5-june-3-1-00-pm-3-00-pm
#11
Jakob D Lauver, Trent E Cayot, Barry W Scheuermann
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27584237/blood-flow-restriction-increases-metabolic-stress-but-decreases-muscle-activation-during-high-intensity-resistance-training-623-board-4-june-1-1-00-pm-3-00-pm
#12
Renato Barroso, Emerson Teixeira, Carla Silva-Batista, Gilberto Laurentino, Hamilton Roschel, Carlos Ugrinowitsch, Valmor Tricoli
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27584204/effect-of-blood-flow-restricted-cycle-training-on-oxygen-uptake-kinetics-during-exercise-114-board-3-june-1-9-30-am-11-30-am
#13
Norio Hotta, Hisayoshi Ogata, Takaharu Kondo, Koji Ishida, Michael R Kushnick
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27408897/physiologically-based-pharmacokinetic-pbpk-model-for-biodistribution-of-radiolabeled-peptides-in-patients-with-neuroendocrine-tumours
#14
Radovan Gospavic, Peter Knoll, Siroos Mirzaei, Viktor Popov
OBJECTIVES: The objectives of this work was to assess the benefits of the application of Physiologically Based Pharmacokinetic (PBPK) models in patients with different neuroendocrine tumours (NET) who were treated with Lu-177 DOTATATE. The model utilises clinical data on biodistribution of radiolabeled peptides (RLPs) obtained by whole body scintigraphy (WBS) of the patients. METHODS: The blood flow restricted (perfusion rate limited) type of the PBPK model for biodistribution of radiolabeled peptides (RLPs) in individual human organs is based on the multi-compartment approach, which takes into account the main physiological processes in the organism: absorption, distribution, metabolism and excretion (ADME)...
2016: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/27404398/effects-of-ischemic-preconditioning-on-short-duration-cycling-performance
#15
Rogério Santos de Oliveira Cruz, Rafael Alves de Aguiar, Tiago Turnes, Amadeo Félix Salvador, Fabrizio Caputo
It has been demonstrated that ischemic preconditioning (IPC) improves endurance performance. However, the potential benefits during anaerobic events and the mechanism(s) underlying these benefits remain unclear. Fifteen recreational cyclists were assessed to evaluate the effects of IPC of the upper thighs on anaerobic performance, skeletal muscle activation, and metabolic responses during a 60-s sprint performance. After an incremental test and a familiarization visit, subjects were randomly submitted in visits 3 and 4 to a performance protocol preceded by intermittent bilateral cuff inflation (4 × (5 min of blood flow restriction + 5 min reperfusion)) at either 220 mm Hg (IPC) or 20 mm Hg (control)...
August 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27362074/the-influence-of-cuff-width-and-sex-on-arterial-occlusion-implications-for-blood-flow-restriction-research-3708-board-147-june-4-9-30-am-11-00-am
#16
Matthew B Jessee, Samuel L Buckner, Scott J Dankel, Brittany R Counts, Takashi Abe, Jeremy P Loenneke
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27362073/venous-versus-arterial-blood-flow-restriction-the-impact-of-cuff-width-3707-board-146-june-4-9-30-am-11-00-am
#17
J Grant Mouser, Samuel L Buckner, Brittany R Counts, Scott J Dankel, Matthew B Jessee, Kevin Mattocks, Gilberto C Laurentino, Jeremy P Loenneke
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27362072/the-influence-of-cuff-width-on-regional-muscle-growth-implications-for-blood-flow-restriction-training-3706-board-145-june-4-9-30-am-11-00-am
#18
Gilberto C Laurentino, J Grant Mouser, Samuel L Buckner, Brittany R Counts, Scott J Dankel, Matthew B Jessee, Kevin T Mattocks, Jeremy P Loenneke, Valmor Tricoli
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27362071/the-influence-of-cuff-material-on-the-acute-muscular-response-to-blood-flow-restricted-exercise-in-the-upper-body-3705-board-144-june-4-9-30-am-11-00-am
#19
Jeremy P Loenneke, Samuel L Buckner, Scott J Dankel, Matthew B Jessee, Brittany R Counts, J Grant Mouser, Kevin T Mattocks, Gilberto C Laurentino, Takashi Abe
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27362070/the-influence-of-cuff-material-on-the-blood-flow-restriction-stimulus-in-the-upper-body-3704-board-143-june-4-9-30-am-11-00-am
#20
Kevin T Mattocks, Samuel L Buckner, Scott J Dankel, Brittany R Counts, Matthew B Jessee, J Grant Mouser, Gilberto C Laurentino, Takashi Abe, Jeremy P Loenneke
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
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