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https://www.readbyqxmd.com/read/28231265/resist-diabetes-a-randomized-clinical-trial-for-resistance-training-maintenance-in-adults-with-prediabetes
#1
Brenda M Davy, Richard A Winett, Jyoti Savla, Elaina L Marinik, Mary Elizabeth Baugh, Kyle D Flack, Tanya M Halliday, Sarah A Kelleher, Sheila G Winett, David M Williams, Soheir Boshra
OBJECTIVE: To determine whether a social cognitive theory (SCT)-based intervention improves resistance training (RT) maintenance and strength, and reduces prediabetes prevalence. RESEARCH DESIGN AND METHODS: Sedentary, overweight/obese (BMI: 25-39.9 kg/m2) adults aged 50-69 (N = 170) with prediabetes participated in the 15-month trial. Participants completed a supervised 3-month RT (2×/wk) phase and were randomly assigned (N = 159) to one of two 6-month maintenance conditions: SCT or standard care...
2017: PloS One
https://www.readbyqxmd.com/read/28229570/the-periodization-of-resistance-training-in-soccer-players-changes-in-maximal-strength-lower-extremity-power-body-composition-and-muscle-volume
#2
Amir Barjaste, Bahman Mirzaei
BACKGROUND: The purpose of this study was to investigate the effect of 12-weeks traditional periodized resistance training on some physical capacities of soccer players. METHODS: Eighteen amateur soccer players with very little experience in resistance training voluntarily participated in this study. Subjects were assigned into two groups; Experimental (EX) group (n: 10) that conducted a traditional linear periodized resistance training program and a control (C) group (n: 8) that did not participate in any resistance training...
22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28225524/the-effects-of-ballistic-and-non-ballistic-bench-press-on-mechanical-variables
#3
Gavin L Moir, Shawn N Munford, Lindsey L Moroski, Shala E Davis
PURPOSE: To investigate the effects of ballistic and non-ballistic bench press performed with loads equivalent to 30 and 90% 1-repetition maximum (1-RM) on mechanical variables. METHODS: Eleven resistance-trained men (age: 23.0 ± 1.4 years; mass: 98.4 ± 14.4 kg) attended four testing sessions where they performed one of the following sessions: 1) three sets of five non-ballistic repetitions performed with a load equivalent to 30% 1-RM (30N-B), 2) three sets of five ballistic repetitions performed with a load equivalent to 30% 1-RM (30B), 3) three sets of four non-ballistic repetitions with a load equivalent to 90% 1-RM (90N-B), 4) three sets of four ballistic repetitions with a load equivalent to 90% 1-RM (90B)...
February 21, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28225522/effects-of-three-different-resistance-training-frequencies-on-jump-sprint-and-repeated-sprint-ability-performance-in-professional-futsal-players
#4
Adrián Paz-Franco, Ezequiel Rey, Roberto Barcala-Furelos
The aim of this study was to examine the effect of 3 different resistance training frequencies (one strength training session per week (1W), two strength training sessions per week (2W) or one strength training session every second week (0.5W)) on jump, sprint and repeated sprint performance (RSA) in professional futsal players. Thirty-five futsal players were randomized into 1 of 3 groups, the 1W group (n= 12), 2W group (n= 12), or the 0.5W group (n= 11). The players performed the same resistance training during 6 weeks and only training frequency differed between the groups...
February 21, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28224640/low-load-resistance-training-with-low-relative-pressure-produces-muscular-changes-similar-to-high-load-resistance-training
#5
Daeyeol Kim, Jeremy P Loenneke, Xin Ye, Debra A Bemben, Travis W Beck, Rebecca D Larson, Michael G Bemben
INTRODUCTION: The purpose of this study was to compare the acute and chronic response of high-load (HL) resistance training to low-load resistance training with a low blood flow restriction (LL-BFR) pressure. METHODS: Participants completed elbow flexion with either HL or LL-BFR, or non-exercise (CON). In the chronic study, participants in the HL and LL-BFR were trained for 8 weeks to determine differences in muscle size and strength. The acute study examined the changes in Pre/Post torque, muscle swelling, and blood lactate...
February 22, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28224307/endocrinological-roles-for-testosterone-in-resistance-exercise-responses-and-adaptations
#6
David R Hooper, William J Kraemer, Brian C Focht, Jeff S Volek, William H DuPont, Lydia K Caldwell, Carl M Maresh
Chronic increases in testosterone levels can significantly increase hypertrophy and strength, as has been demonstrated by pharmacological intervention. However, decreases in basal testosterone levels can have the opposite result, as has been seen in hypogonadal populations. Because of these profound effects on hypertrophy and strength, testosterone has often been studied in conjunction with resistance exercise to examine whether the endocrine system plays a role in adaptations to the stimulus. Whereas some studies have demonstrated a chronic increase in basal testosterone, others have failed to find an adaptation to regular resistance exercise...
February 21, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28223941/enhanced-corticospinal-excitability-and-volitional-drive-in-response-to-shortening-and-lengthening-strength-training-and-changes-following-detraining
#7
Jamie Tallent, Stuart Goodall, Karl C Gibbon, Tibor Hortobágyi, Glyn Howatson
There is a limited understanding of the neurological adaptations responsible for changes in strength following shortening and lengthening resistance training and subsequent detraining. The aim of the study was to investigate differences in corticospinal and spinal responses to resistance training of the tibialis anterior muscle between shortening or lengthening muscle contractions for 4 weeks and after 2 weeks of detraining. Thirty-one untrained individuals were assigned to either shortening or lengthening isokinetic resistance training (4 weeks, 3 days/weeks) or a non-training control group...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28223710/high-intensity-aerobic-exercise-improves-both-hepatic-fat-content-and-stiffness-in-sedentary-obese-men-with-nonalcoholic-fatty-liver-disease
#8
Sechang Oh, Rina So, Takashi Shida, Tomoaki Matsuo, Bokun Kim, Kentaro Akiyama, Tomonori Isobe, Yoshikazu Okamoto, Kiyoji Tanaka, Junichi Shoda
We compared the effects of 12-week programs of resistance training (RT), high-intensity interval aerobic training (HIAT), and moderate-intensity continuous aerobic training (MICT). The primary goal was to evaluate the therapeutic effects of the exercise modalities for the management of nonalcoholic fatty liver disease (NAFLD). A total of 61 sedentary obese men with NAFLD were randomized into one of the following exercise regimens (RT, HIAT, or MICT). Hepatic fat content was decreased to a similar extent in the RT, HIAT, and MICT groups (-14...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28222580/acute-and-delayed-responses-of-steroidal-hormones-blood-lactate-and-biomarkers-of-muscle-damage-after-a-resistance-training-session-time-of-day-effects
#9
Achraf Ammar, Hamdi Chtourou, Mouna Turki, Omar Hammouda, Ahmed Chaari, Mariem Boudaya, Tarak Driss, Fatma Ayedi, Nizar Souissi
BACKGROUND: The present study aimed to investigate the effect of time-of-days (TOD) on some biochemical and hormonal responses after resistance training sessions. METHODS: Ten trained subjects (22±2 years) performed, in randomized order, three resistance-training-sessions at 07h:00, 13h:00 and 17h:00. Each training-session included six upper and lower body resistance exercises with 3×10 repetitions. Blood lactate (Lac), creatine kinase (CK), lactate dehydrogenase (LDH), cortisol (C) and testosterone (T) were collected at rest, 3min and 48h after each-session...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28220715/a-systematic-review-of-mechanisms-of-gait-speed-change-post-stroke-part-1-spatiotemporal-parameters-and-asymmetry-ratios
#10
Elizabeth C Wonsetler, Mark G Bowden
BACKGROUND: In walking rehabilitation trials, self-selected walking speed (SSWS) has emerged as the dominant outcome measure to assess walking ability. However, this measure cannot differentiate between recovery of impaired movement and compensation strategies. Spatiotemporal variables and asymmetry ratios are frequently used to quantify gait deviations and are hypothesized markers of recovery. OBJECTIVES: The purpose of this review is to investigate spatiotemporal variables and asymmetry ratios as mechanistic recovery measures in physical therapy intervention studies post-stroke...
February 21, 2017: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/28219107/chronic-blood-pressure-reductions-and-increments-in-plasma-nitric-oxide-bioavailability
#11
Crisieli M Tomeleri, Alexandre J Marcori, Alex Silva Ribeiro, Aline Mendes Gerage, Camila de Souza Padilha, Durcelina Schiavoni, Mariana F Souza, Jerry L Mayhew, Matheus Amarante do Nascimento, Danielle Venturini, Decio Sabbatini Barbosa, Edilson Serpeloni Cyrino
This study analyzed the effects of 12 weeks of resistance training (RT) on resting blood pressure (BP) and plasma levels of nitric oxide metabolites (NOx) in pre- and hypertensive older women, and evaluated the relationship between these 2 parameters. Thirty-five older women (68.2±5.7 years, 70.0±14.4 kg, 157.1±6.4 cm, 28.3±5.0 kg.m(-2)) were randomly allocated into a training group (TG; n=17), which performed a 12-week RT program, and a control group (CG; n=18), which did not perform any physical exercise...
February 20, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28219105/effects-of-resistance-training-volume-on-mmps-in-circulation-muscle-and-adipose-tissue
#12
Ivo Vieira de Sousa Neto, Ramires Alsamir Tibana, Dahan da Cunha Nascimento, Denis César Leite Vieira, Joao Luiz Quagliotti Durigan, Guilherme Borges Pereira, James Wilfred Navalta, Rita de Cássia Marqueti, Jonato Prestes
The aim of this study was to investigate the effects of different resistance training (RT) volumes on MMP activity in skeletal muscle, visceral adipose tissue and circulation. 21 Wistar rats were randomly divided into 3 groups (n=7 per group): sedentary control (SC); RT with 4 ladder climbs (RT-4; 50, 75, 90 and 100% of their maximal carrying capacity) and RT with 8 ladder climbs (RT-8 with 2 sets for each load). The 8-week RT consisted of climbing a 1.1-m vertical ladder with weights secured to the animals' tails...
February 20, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28218021/a-systematic-review-of-mechanisms-of-gait-speed-change-post-stroke-part-2-exercise-capacity-muscle-activation-kinetics-and-kinematics
#13
Elizabeth C Wonsetler, Mark G Bowden
BACKGROUND: Regaining locomotor ability is a primary goal in stroke rehabilitation and is most commonly measured using changes in self-selected walking speed. However, walking speed cannot identify the mechanisms by which an individual recovers. Laboratory-based mechanistic measures such as exercise capacity, muscle activation, force production, and movement analysis variables may better explain neurologic recovery. OBJECTIVES: The objectives of this systematic review are to examine changes in mechanistic gait outcomes and describe motor recovery as quantified by changes in laboratory-based mechanistic variables in rehabilitation trials...
February 20, 2017: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/28214041/why-intensity-is-not-a-bad-word-optimizing-health-status-at-any-age
#14
REVIEW
Gary R Hunter, Eric P Plaisance, Stephen J Carter, Gordon Fisher
Age-related declines in health and function make locomotion increasingly difficult leading to reductions in non-exercise activity thermogenesis (NEAT), skeletal muscle size and strength, and increased adiposity. Exercise is an important strategy to attenuate loss of function through the life cycle. Despite claims to the contrary, high-intensity exercise is important for the prevention of obesity and sarcopenia with advancing age. Therefore, the purpose of this mini-review is to present literature supporting the contention that low volume, high-intensity aerobic and/or resistance training can slow sarcopenia, sustain ease of movement, stimulate NEAT, and attenuate the accretion of fat mass...
February 9, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28209634/cognitive-decline-in-prostate-cancer-patients-undergoing-adt
#15
Niamh Liana Mundell, Robin M Daly, Helen Macpherson, Steve F Fraser
Androgen deprivation therapy (ADT) is an effective and widely prescribed treatment for prostate cancer (PCa), but it is associated with multiple treatment induced adverse effects that impact on various musculoskeletal and cardiometabolic health outcomes. Emerging research has shown that ADT is also associated with cognitive impairment, which has been linked to a loss of independence, increased falls and fracture risk and greater use of medical services. The aim of this review is to outline the evidence related to the effect of ADT use on cognitive function, and propose a role for exercise training as part of usual care to prevent and/or manage cognitive impairments for PCa survivors on ADT...
February 16, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28206871/swallowing-therapy-and-progressive-resistance-training-in-head-and-neck-cancer-patients-undergoing-radiotherapy-treatment-randomized-control-trial-protocol-and-preliminary-data
#16
Sara F Hajdú, Irene Wessel, Christoffer Johansen, Claus A Kristensen, Zahra T Kadkhoda, Christina C Plaschke, Susanne O Dalton
BACKGROUND: Head and neck cancer (HNC) patients are often challenged by treatment induced dysphagia and trismus. Traditionally, rehabilitation is initiated when loss of function has already occurred. There is increasing evidence that it is of benefit to patients to initiate an early rehabilitation process before and during treatment. HNC patients have a unique set of functional challenges such as pre- and post-treatment dysphagia, pain and weight loss. The aim of the trial is to investigate the effects of swallowing and mouth-opening exercises combined with progressive resistance training (PRT) during radiotherapy...
February 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28205203/effects-of-different-types-of-exercise-on-body-composition-muscle-strength-and-igf-1-in-the-elderly-with-sarcopenic-obesity
#17
Hung-Ting Chen, Yu-Chun Chung, Yu-Jen Chen, Sung-Yen Ho, Huey-June Wu
OBJECTIVES: To investigate the influence of resistance training (RT), aerobic training (AT), or combination training (CT) interventions on the body composition, muscle strength performance, and insulin-like growth factor 1 (IGF-1) of patients with sarcopenic obesity. DESIGN: Randomized controlled trial. SETTING: Community center and research center. PARTICIPANTS: Sixty men and women aged 65-75 with sarcopenic obesity...
February 15, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28198601/the-effect-of-high-speed-strength-training-with-heavy-and-low-workloads-on-neuromuscular-function-and-maximal-concentric-quadriceps-strength
#18
Ali A Mazani, Mohamed R Hamdinia, Amir H Haghigi, Nosratollah Hedayatpour
BACKGROUND: Dynamic strength training has been widely used to increase the ability of skeletal muscle to produce muscle force. Manipulating resistance training program variables has been commonly used as a tool to optimize maximum strength. This study examined the effects of 12 weeks of high-speed strength training with low and heavy workloads on muscle strength and neuromuscular function of quadriceps muscle. METHODS: Thirty male subjects (age, mean ± SD, 20.6 ± 2...
February 14, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28195977/fat-grip-resistance-training-improves-driving-performance-in-division-i-male-golfers
#19
Patrick M Cummings, Hunter S Waldman, Ben M Krings, JohnEric W Smith, Matthew J McAllister
Fat Grip (FG) training is implemented into strength and conditioning programs with the overall goal of increasing grip strength. Previous research assessing the effect of training with increased grip diameters compared to standard Olympic bar diameters has mainly been in acute settings. Therefore, the purpose of this study was to examine to effects FG training compared to normal diameter grip (CON) training during an eight week periodized resistance training (RT) program in Division I male golfers. Subjects (n = 10) were randomly assigned into two groups: the FG group (n = 5, scoring average: 75...
February 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28195973/repetition-performance-and-blood-lactate-responses-adopting-different-recovery-periods-between-training-sessions-in-trained-men
#20
Humberto Miranda, Marianna de Freitas Maia, Gabriel Andrade Paz, João A A A de Souza, Roberto Simão, Déborah de Araújo Farias, Jeffrey M Willardson
The purpose of this study was to examine the effect of different recovery periods (24h, 48h, and 72h) between repeated resistance training (RT) sessions for the upper body muscles on repetition performance and blood lactate responses in trained men. Sixteen recreationally trained men (age: 26.1 ± 3.1 years; height: 179 ± 4.5 cm; body mass: 82.6 ± 4.0 kg, 4.5 ± 2.2 years of RT experience) participated in this study. Eight-repetition maximum (8-RM) loads were determined for the bench press (BP), 30° incline bench press (BP30), and 45° incline bench press (BP45) exercises...
February 8, 2017: Journal of Strength and Conditioning Research
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