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https://www.readbyqxmd.com/read/29352373/sleep-interventions-designed-to-improve-athletic-performance-and-recovery-a-systematic-review-of-current-approaches
#1
REVIEW
Daniel Bonnar, Kate Bartel, Naomi Kakoschke, Christin Lang
BACKGROUND: Athletes experience various situations and conditions that can interfere with their sleep, which is crucial for optimal psychological and physiological recovery as well as subsequent performance. Conventional sleep screening and intervention approaches may not be efficacious for athletes given their lifestyle, the demands of training and travel associated with interstate/international competition. OBJECTIVES: The present systematic review aimed to summarize and evaluate sleep intervention studies targeting subsequent performance and recovery in competitive athletes...
January 20, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29351646/effect-of-a-postpartum-training-program-on-prevalence-of-diastasis-recti-abdominis-in-postpartum-primiparous-women-a-randomized-controlled-trial
#2
Sandra L Gluppe, Gunvor Hilde, Merete K Tennfjord, Marie E Engh, Kari Bø
Background: Diastasis recti abdominis affects a significant number of women during the prenatal and postnatal period. Objective: The objective was to evaluate the effect of a postpartum training program on prevalence of diastasis recti abdominis. Design: The design was a secondary analysis of an assessor-masked randomized controlled trial. Methods: One hundred and seventy-five primiparous women (mean age 29.8±4.1) were randomized to an exercise or control group...
January 17, 2018: Physical Therapy
https://www.readbyqxmd.com/read/29351488/measurement-of-postprandial-glucose-fluxes-in-response-to-acute-and-chronic-endurance-exercise-in-healthy-humans
#3
Dale J Morrison, Greg M Kowalski, Eleonora Grespan, Andrea Mari, Clinton R Bruce, Glenn D Wadley
The effect of endurance exercise on enhancing insulin sensitivity and glucose flux has been well established with techniques such as the hyperinsulinemic clamp. Although informative, such techniques do not emulate the physiological postprandial state, and it remains unclear how exercise improves postprandial glycaemia. Accordingly, combining mixed meal tolerance testing and the triple-stable isotope glucose tracer approach, glucose fluxes (rates of meal glucose appearance (Ra), disposal (Rd) and endogenous glucose production (EGP)) were determined following acute endurance exercise (1h cycling; ~70% VO2max) and 4 weeks of endurance training (cycling 5d/wk)...
December 19, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29351462/maximal-strength-training-induced-improvements-in-forearm-work-efficiency-are-associated-with-reduced-blood-flow
#4
Ole Kristian Berg, Stian Kwak Nyberg, Tobias Midtvedt Windedal, Eivind Wang
Maximal strength training (MST) improves work efficiency. However, since blood flow is greatly dictated by muscle contractions in arms during exercise, and vascular conductance is lower, it has been indicated that arms rely more upon adapting oxygen extraction than legs in response to the enhanced work efficiency. Thus, to investigate if metabolic and vascular responses are arm-specific, we utilized Doppler-ultrasound and a catheter placed in the subclavian vein to measure blood flow and a-vO2diff during steady state work in seven young males (24{plus minus}3(SD) years) following six-weeks of handgrip MST...
December 29, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29351461/exercise-training-induces-enos-coupling-and-restores-relaxation-in-coronary-arteries-of-heart-failure-rats
#5
Gisele Kruger Couto, Suliana Mesquita Paula, Igor L Gomes-Santos, Carlos Eduardo Negrão, Luciana Venturini Rossoni
Exercise training (ET) has emerged as a non-pharmacological therapy for cardiovascular diseases because of its helpful milieu for improving vascular function. The aim of the present study was to assess whether ET reverses the alterations in vascular reactivity observed in heart failure (HF)-related coronary arteries and to elucidate the molecular mechanisms involved in these adjustments. Male Wistar rats were subjected to either coronary artery ligation or sham operation (SO). Four weeks after the surgery, the rats were divided into two groups: untrained HF (UHF) and exercise-trained HF (THF)...
January 5, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29351416/acute-and-chronic-resistance-training-downregulates-select-line-1-retrotransposon-activity-markers-in-human-skeletal-muscle
#6
Matthew A Romero, C Brooks Mobley, Petey W Mumford, Paul A Roberson, Cody T Haun, Wesley C Kephart, James C Healy, Darren T Beck, Kaelin C Young, Jeffrey S Martin, Christopher M Lockwood, Michael D Roberts
Herein, we examined if acute or chronic resistance exercise affected markers of skeletal muscle LINE-1 retrotransposon activity. In study 1, 10 resistance-trained college-aged males performed three consecutive daily back squat sessions, and vastus lateralis biopsies were taken prior to (Pre), 2 h following session 1 (Post1), and 3 days following session 3 (Post2). In study 2, 13 untrained college-aged males performed a full-body resistance training program (3 d/wk), and vastus lateralis biopsies were taken prior to (week 0) and ~72 h following training cessation (week 12)...
December 20, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29351383/muscular-performance-and-body-composition-changes-following-multi-versus-combined-multi-and-single-joint-exercises-in-aging-adults
#7
Ewertton de Souza Bezerra, Antônio Renato Pereira Moro, Lucas Bet da Rosa Orssatto, Mariane Eichendorf da Silva, Jeffrey Michael Willardson, Roberto Simão
The aim of the present study was to compare muscular performance and body composition changes following low volume resistance training programs consisting of multi-joint (MJ) exercises (cable chest press and seated row)versus a combination of multi- and single-joint (MJ+SJ) exercises (cable chest press, seated row, biceps curl, and triceps extension). Thirty untrained healthy aging adults were randomly assigned to three groups: MJ (n=11), MJ+SJ (n=11), and Control (n=8). Twelve-repetition maximums (12-RM) for the cable chest press and seated row; localized muscular endurance for the elbow flexors handgrip strength; and body composition were assessed before and after the 8-week training program...
January 19, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29351165/the-relationship-between-maximum-pull-up-repetitions-and-first-repetition-mean-concentric-velocity
#8
George K Beckham, Joshua J Olmeda, Alexandra J Flores, Julian A Echeverry, Alexus F Campos, Steven B Kim
Mean concentric velocity (MCV) of exercise execution has been used by strength and conditioning professionals to improve exercise technique, provide accurate feedback, and predict exercise one repetition maximum. There is still limited research on velocity based training and currently only one research study on the pull-up exercise. The primary purpose of this research was to determine if the maximum number of pull-ups an individual can perform can be predicted by the MCV of a single pull-up repetition. Forty-nine healthy men and women were recruited who reported they could do at least two pull-ups...
January 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29351163/comparison-of-the-force-velocity-and-power-time-curves-between-the-concentric-only-and-eccentric-concentric-bench-press-exercises
#9
Alejandro Pérez-Castilla, Paul Comfort, John J McMahon, Francisco Luis Pestaña-Melero, Amador García-Ramos
The aim of this study was to compare the temporal and mechanical variables between the concentric-only and eccentric-concentric bench press (BP) variants. Twenty-one men (age: 22.0±4.2 years, body mass: 73.4±7.7 kg, height: 177.2±8.0 cm; one-repetition maximum [1RM]: 1.12±0.12 kg⋅kg) were evaluated during the concentric-only and eccentric-concentric BP variants using 80% 1RM. Temporal (concentric phase duration, propulsive phase duration, and time to reach the maximum values of force, velocity, and power) and mechanical variables (force, velocity, and power), determined using a linear velocity transducer, were compared between both BP variants...
January 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29351160/acute-cardiorespiratory-and-metabolic-effects-of-a-sandbag-resistance-exercise-protocol
#10
Nicholas A Ratamess, Jie Kang, Jeremy D Kuper, Elizabeth A O'Grady, Nicole L Ellis, Ira T Vought, Emma Culleton, Jill A Bush, Avery D Faigenbaum
The purpose of the present study was to examine the acute cardiorespiratory and metabolic effects of a sandbag (SB) resistance exercise protocol and compare the responses to time-matched treadmill running protocols. Eight healthy, resistance-trained men (21.1 ± 1.0 years; 86.1 ± 7.8 kg) completed four protocols of equal duration in random sequence: 1) SB, 2) treadmill running at 60% of VO2 reserve (60VO2R), 3) treadmill running at 80% of VO2 reserve (80VO2R), and 4) a control protocol. The SB protocol was 16 min in duration and consisted of 3 circuits of 8 multiple-joint exercises (with 11-, 20-, or -48 kg sandbags) performed for as many repetitions as possible for 20 sec followed by a 10-sec rest interval prior to beginning the next exercise...
January 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29351130/comparative-effectiveness-of-low-volume-time-efficient-resistance-training-versus-endurance-training-in-patients-with-heart-failure
#11
Gregers Winding Munch, Jaya Birgitte Rosenmeier, Morten Petersen, Anders Rasmussen Rinnov, Ulrik Winning Iepsen, Bente Klarlund Pedersen, Stefan Peter Mortensen
PURPOSE: Cardiorespiratory fitness is positively related to heart failure (HF) prognosis, but lack of time and low energy are barriers for adherence to exercise. We, therefore, compared the effect of low-volume time-based resistance exercise training (TRE) with aerobic moderate-intensity cycling (AMC) on maximal and submaximal exercise capacity, health-related quality of life, and vascular function. METHODS: Twenty-eight HF patients (New York Heart Association class I-II) performed AMC (n = 14) or TRE (n = 14)...
January 18, 2018: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/29350710/exercise-intervention-attrition-compliance-adherence-and-progression-following-hematopoietic-stem-cell-transplantation%C3%A2
#12
Tara Peters, Ruby Erdmann, Eileen Danaher Hacker
BACKGROUND: Exercise is widely touted as an effective intervention to optimize health and well-being after high-dose chemotherapy and hematopoietic stem cell transplantation. 
. OBJECTIVES: This article reports attrition, compliance, adherence, and progression from the strength training arm of the single-blind randomized, controlled trial Strength Training to Enhance Early Recovery (STEER). 
. METHODS: 37 patients were randomized to the intervention and participated in a structured strength training program introduced during hospitalization and continued for six weeks after release...
February 1, 2018: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/29350556/rehabilitation-of-a-young-athlete-with-extension-based-low-back-pain-addressing-motor-control-impairments-and-central-sensitization
#13
John J Winslow, Mark Jackson, Andrew Getzin, Michael Costello
OBJECTIVE:   To describe the conservative management of a young athlete with extension-based (EB) low back pain (LBP). BACKGROUND:   We present the case of a 15-year-old female high school gymnast with a 4-year history of EB LBP. Magnetic resonance imaging revealed a healed spondylolysis and significant lumbar multifidi muscle (LMM) atrophy with fatty infiltrate. She had several courses of outpatient orthopaedic rehabilitation that focused on core muscle strengthening (improving activation and strength of the LMM and transversus abdominus muscle in a neutral pelvic position) without long-lasting improvement...
January 19, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29350344/the-relationship-between-exercise-dose-and-health-related-quality-of-life-with-a-phase-iii-cardiac-rehabilitation-program
#14
Borja Del Pozo-Cruz, Graeme Carrick-Ranson, Stacey Reading, Paul Nolan, Lance C Dalleck
PURPOSE: To quantify the relationship between the change in exercise dose and health-related quality of life (HRQoL) in a cohort of patients participating in a community-based phase-3 cardiac rehabilitation (CR) program. METHODS: A retrospective, pre-experimental (no control group) design of 58 participants that completed a phase-3, 12-week exercise-based CR program was used to test the current hypothesis. Self-reported HRQoL (36-Item Short Form Health Survey Version 2, SF-36v2) was assessed prior and after completing the CR program...
January 19, 2018: Quality of Life Research
https://www.readbyqxmd.com/read/29350278/lower-body-blood-flow-restriction-training-may-induce-remote-muscle-strength-adaptations-in-an-active-unrestricted-arm
#15
Anthony K May, Aaron P Russell, Stuart A Warmington
PURPOSE: We examined the concurrent characteristics of the remote development of strength and cross-sectional area (CSA) of upper body skeletal muscle in response to lower body resistance training performed with an applied blood flow restriction (BFR). METHODS: Males allocated to an experimental BFR group (EXP; n = 12) or a non-BFR control group (CON; n = 12) completed 7-weeks of resistance training comprising three sets of unilateral bicep curls [50% 1-repetition maximum (1-RM)], then four sets of bilateral knee extension and flexion exercises (30% 1-RM)...
January 19, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29349712/highly-favorable-physiological-responses-to-concurrent-resistance-and-high-intensity-interval-training-during-chemotherapy-the-optitrain-breast-cancer-trial
#16
Sara Mijwel, Malin Backman, Kate A Bolam, Emil Olofsson, Jessica Norrbom, Jonas Bergh, Carl Johan Sundberg, Yvonne Wengström, Helene Rundqvist
BACKGROUND: Advanced therapeutic strategies are often accompanied by significant adverse effects, which warrant equally progressive countermeasures. Physical exercise has proven an effective intervention to improve physical function and reduce fatigue in patients undergoing chemotherapy. Effects of high-intensity interval training (HIIT) in this population are not well established although HIIT has proven effective in other clinical populations. The aim of the OptiTrain trial was to examine the effects of concurrent resistance and high-intensity interval training (RT-HIIT) or concurrent moderate-intensity aerobic and high-intensity interval training (AT-HIIT), to usual care (UC) on pain sensitivity and physiological outcomes in patients with breast cancer during chemotherapy...
January 18, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29349618/respiratory-training-late-after-fontan-intervention-impact-on-cardiorespiratory-performance
#17
Lamia Ait Ali, Alessandro Pingitore, Paolo Piaggi, Fabio Brucini, Mirko Passera, Marco Marotta, Alessandra Cadoni, Claudio Passino, Giosuè Catapano, Pierluigi Festa
Fontan palliation allows patients with "single ventricle" circulation to reach adulthood with an acceptable quality of life, although exercise tolerance is significantly reduced. To assess whether controlled respiratory training (CRT) increases cardiorespiratory performance. 16 Adolescent Fontan patients (age 17. 5 ± 3.8 years) were enrolled. Patients were divided into CRT group (n = 10) and control group (C group, n = 6). Maximal cardiopulmonary test (CPT) was repeated at the end of CRT in the CRT group and after an average time of 3 months in the C group...
January 19, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29349286/exercise-self-efficacy-in-adults-with-congenital-heart-disease
#18
Annika Bay, Camilla Sandberg, Ulf Thilén, Karin Wadell, Bengt Johansson
Background: Physical activity improves health, exercise tolerance and quality of life in adults with congenital heart disease (CHD), and exercise training is in most patients a high-benefit low risk intervention. However, factors that influence the confidence to perform exercise training, i.e. exercise self-efficacy (ESE), in CHD patients are virtually unknown. We aimed to identify factors related to low ESE in adults with CHD, and potential strategies for being physically active. Methods: Seventy-nine adults with CHD; 38 with simple lesions (16 women) and 41 with complex lesions (17 women) with mean age 36...
March 2018: IJC Heart & Vasculature
https://www.readbyqxmd.com/read/29347947/efficacy-of-pre-operative-quadriceps-strength-training-on-knee-extensor-strength-before-and-shortly-following-total-knee-arthroplasty-protocol-for-a-randomized-dose-response-trial-the-quadx-1-trial
#19
Rasmus Skov Husted, Anders Troelsen, Kristian Thorborg, Michael Skovdal Rathleff, Henrik Husted, Thomas Bandholm
BACKGROUND: Patients with knee osteoarthritis (OA) report knee pain, limitation in physical activities and low quality of life. The two primary treatments for knee OA are non-surgical treatment (e.g., exercise) and surgery (total knee arthroplasty (TKA)); however, national guidelines recommend non-surgical treatment to be tried prior to surgical procedures. Patients with knee OA are characterized by decreased muscle strength, particularly in the knee-extensor muscles. Correspondingly, decreased knee-extensor strength is found to be associated with an increased risk of development, progression and severity of knee OA symptoms...
January 18, 2018: Trials
https://www.readbyqxmd.com/read/29347946/effects-of-long-term-balance-training-with-vibrotactile-sensory-augmentation-among-community-dwelling-healthy-older-adults-a-randomized-preliminary-study
#20
Tian Bao, Wendy J Carender, Catherine Kinnaird, Vincent J Barone, Geeta Peethambaran, Susan L Whitney, Mohammed Kabeto, Rachael D Seidler, Kathleen H Sienko
BACKGROUND: Sensory augmentation has been shown to improve postural stability during real-time balance applications. Limited long-term controlled studies have examined retention of balance improvements in healthy older adults after training with sensory augmentation has ceased. This pilot study aimed to assess the efficacy of long-term balance training with and without sensory augmentation among community-dwelling healthy older adults. METHODS: Twelve participants (four males, eight females; 75...
January 18, 2018: Journal of Neuroengineering and Rehabilitation
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