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https://www.readbyqxmd.com/read/28237604/resistance-training-performed-at-distinct-angular-velocities-elicits-velocity-specific-alterations-in-muscle-strength-and-mobility-status-in-older-adults
#1
Davis A Englund, Rick L Sharp, Joshua T Selsby, Shanthi S Ganesan, Warren D Franke
BACKGROUND: The purpose of this study was to compare the effects of high and low velocity knee extension training on changes in muscle strength and mobility status in high-functioning older adults. METHODS: Twenty-six (16 female, 10 male) older adults (mean age of 65) were randomized to either 6weeks of low velocity resistance training (LVRT) performed at 75°/s or high velocity resistance training (HVRT) performed at 240°/s. Both groups performed 3 sets of knee extension exercises at maximal effort, 3 times a week...
February 22, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28231265/resist-diabetes-a-randomized-clinical-trial-for-resistance-training-maintenance-in-adults-with-prediabetes
#2
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/28229646/special-nutrition-intervention-is-required-for-muscle-protective-efficacy-of-physical-exercise-in-elderly-people-at-highest-risk-of-sarcopenia
#3
A Molnár, I Jónásné Sztruhár, Á A Csontos, Cs Ferencz, Sz Várbíró, B Székács
Progressive loss of muscle mass and strength is a physiological consequence of aging, and without interventions, it usually deteriorates into sarcopenia. In this study, the hypothesis that combined special nutritional-physiotherapeutical intervention to prevent or reverse this biological deterioration in elderly people was tested. The effects of the regular resistance muscle training (PT, n = 17) alone and the combined exercise + special nutrition therapy containing whey protein and vitamin D (PT + NT, n = 17) were monitored for 3 months in 34 elderly patients (12 men and 22 women; mean age: 66...
September 2016: Physiol Int
https://www.readbyqxmd.com/read/28229576/hormonal-responses-during-two-different-concurrent-training-trials-in-youth-elite-soccer-players-does-changing-the-organisation-of-training-impact-the-hormonal-response-to-concurrent-exercise
#4
Kevin Enright, James Morton, John Iga, Barry Drust
BACKGROUND: There are no data describing the acute hormonal responses to concurrent- training programmes in youth elite soccer players. Therefore, the aim of this study was to describe the total testosterone (T), cortisol (C), and growth hormone (hGH) responses during two same-day concurrent-training (CT) trials in elite soccer players. METHODS: n=13 youth elite players (age: 17.0±0.2 yrs; height, 1.80±0.07 m; body mass, 73.1±5.7 kg; VO2 max, 64.4±4.8ml-1.kg-1...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28229575/effects-of-a-low-volume-plyometric-training-in-anaerobic-performance-of-adolescent-athletes
#5
Ari R Assunção, Martim Bottaro, Euler A Cardoso, Daiane P Dantas da Silva, Marcelo Ferraz, Carlos A Vieira, Paulo Gentil
BACKGROUND: Parameters related to the anaerobic capacity and power may be important for the performance of many sports whose skills are related to high-intensity and short- duration efforts. Although plyometric training (PT) has been widely used in the regular strength and conditioning programs of young athletes, its effects on anaerobic performance are still controversial. Therefore, the purpose of the present study was to evaluate the effects of PT in anaerobic performance in young athletes...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28217414/dance-balance-and-core-muscle-performance-measures-are-improved-following-a-9-week-core-stabilization-training-program-among-competitive-collegiate-dancers
#6
Todd Watson, Jessica Graning, Sue McPherson, Elizabeth Carter, Joshuah Edwards, Isaac Melcher, Taylor Burgess
BACKGROUND: Dance performance requires not only lower extremity muscle strength and endurance, but also sufficient core stabilization during dynamic dance movements. While previous studies have identified a link between core muscle performance and lower extremity injury risk, what has not been determined is if an extended core stabilization training program will improve specific measures of dance performance. HYPOTHESIS/PURPOSE: This study examined the impact of a nine-week core stabilization program on indices of dance performance, balance measures, and core muscle performance in competitive collegiate dancers...
February 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28208604/reducing-fall-risk-with-combined-motor-and-cognitive-training-in-elderly-fallers
#7
Francesco Barban, Roberta Annicchiarico, Matteo Melideo, Alessia Federici, Maria Giovanna Lombardi, Simone Giuli, Claudia Ricci, Fulvia Adriano, Ivo Griffini, Manuel Silvestri, Massimo Chiusso, Sergio Neglia, Sergio Ariño-Blasco, Raquel Cuevas Perez, Yannis Dionyssiotis, Georgios Koumanakos, Milo Kovačeić, Nuria Montero-Fernández, Oscar Pino, Niels Boye, Ulises Cortés, Cristian Barrué, Atia Cortés, Peter Levene, Stelios Pantelopoulos, Roberto Rosso, José Antonio Serra-Rexach, Angelo Maria Sabatini, Carlo Caltagirone
BACKGROUND: Falling is a major clinical problem in elderly people, demanding effective solutions. At present, the only effective intervention is motor training of balance and strength. Executive function-based training (EFt) might be effective at preventing falls according to evidence showing a relationship between executive functions and gait abnormalities. The aim was to assess the effectiveness of a motor and a cognitive treatment developed within the EU co-funded project I-DONT-FALL...
February 10, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28195977/fat-grip-resistance-training-improves-driving-performance-in-division-i-male-golfers
#8
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/28194734/physical-and-physiological-profiles-of-brazilian-jiu-jitsu-athletes-a-systematic-review
#9
REVIEW
Leonardo Vidal Andreato, Francisco Javier Díaz Lara, Alexandro Andrade, Braulio Henrique Magnani Branco
BACKGROUND: Brazilian jiu-jitsu is a grappling combat sport that has intermittency as its core element; in other words, actions of high, moderate and low intensity are interspersed during matches, requiring a high level of conditioning to support optimal levels of performance for the total match time. The athletes perform from four to six matches during a day of competition, and this number may increase if the open-class competition, which is held parallel to the competition by weight class, is considered...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28187805/the-history-of-neurocritical-care
#10
E F M Wijdicks
Critical care medicine came into sharp focus in the second part of the 20th century. The care of acutely ill neurologic patients in the USA may have originated in postoperative neurosurgical units, but for many years patients with neurocritical illness were admitted to intensive care units next to patients with general medical or surgical conditions. Neurologists may have had their first exposure to the complexity of neurocritical care during the poliomyelitis epidemics, but few were interested. Much later, the development of neurocritical care as a legitimate subspecialty was possible as a result of a new cadre of neurologists, with support by departments of neurosurgery and anesthesia, who appreciated their added knowledge and expertise in care of acute neurologic illness...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28181266/improvement-in-muscle-strength-with-low-load-isotonic-training-depends-on-fascicle-length-but-not-joint-angle
#11
Hiroki Tanaka, Tome Ikezoe, Masatoshi Nakamura, Ko Yanase, Kosuke Fujita, Yoshiki Motomura, Ken Kusano, Kojiro Araki, Jun Umehara, Junya Saeki, Katsuyuki Morishita, Noriaki Ichihashi
INTRODUCTION: This study investigates whether low-load isotonic training will elicit greater improvement in muscle strength at the same fascicle length, rather than at the same joint angle. METHODS: 16 healthy men (24.1 ± 2.5 years) were randomly divided into intervention and control groups. The pre- and post-training, maximum isometric and isokinetic strengths, and the fascicle length of medial gastrocnemius muscle were measured. Isotonic resistance training at 15° to 30° ankle plantar flexion at low intensity was conducted for 4 weeks...
February 9, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28174526/reconsolidation-extinction-interactions-in-fear-memory-attenuation-the-role-of-inter-trial-interval-variability
#12
Allison Auchter, Lawrence K Cormack, Yael Niv, Francisco Gonzalez-Lima, Marie H Monfils
Fear extinction typically results in the formation of a new inhibitory memory that suppresses the original conditioned response. Evidence also suggests that extinction training during a retrieval-induced labile period results in integration of the extinction memory into the original fear memory, rendering the fear memory less susceptible to reinstatement. Here we investigated the parameters by which the retrieval-extinction paradigm was most effective in memory updating. Specifically, we manipulated the inter-trial intervals (ITIs) between conditional stimulus (CS) presentations during extinction, examining how having interval lengths with different degrees of variability affected the strength of memory updating...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28174465/association-between-respiratory-muscle-strength-and-reduction-of-arterial-blood-pressure-levels-after-aerobic-training-in-hypertensive-subjects
#13
Giovane Galdino, Andreia Maria Silva, José Angelo Bogão, Marcos Paulo Braz de Oliveira, Hayslenne Andressa Gonçalves de Oliveira Araújo, Maísa Sodoco Oliveira, Ana Clara Desiderio Maldonado, Herick Ulisses de Oliveira, Juliana Bassalobre Carvalho Borges
[Purpose] The purpose of present study was associate the increase of respiratory muscle strength with blood pressure levels in hypertensive subjects who underwent an aerobic exercise program. [Subjects and Methods] 90 hypertensive subjects were divided in two groups: intervention and control. All participants had an interview with a physiotherapist and were evaluated by 6-minute walk test, maximal inspiratory pressure, maximal expiratory pressure, heart rate, systolic blood pressure and diastolic blood pressure, before and after the 8 weeks...
December 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28167200/numerical-abilities-in-fish-a-methodological-review
#14
REVIEW
Christian Agrillo, Maria Elena Miletto Petrazzini, Angelo Bisazza
The ability to utilize numerical information can be adaptive in a number of ecological contexts including foraging, mating, parental care, and anti-predator strategies. Numerical abilities of mammals and birds have been studied both in natural conditions and in controlled laboratory conditions using a variety of approaches. During the last decade this ability was also investigated in some fish species. Here we reviewed the main methods used to study this group, highlighting the strengths and weaknesses of each of the methods used...
February 3, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28167168/effects-of-a-16-week-pilates-exercises-training-program-for-isometric-trunk-extension-and-flexion-strength
#15
Irina Kliziene, Saule Sipaviciene, Jovita Vilkiene, Audrone Astrauskiene, Gintautas Cibulskas, Sarunas Klizas, Ginas Cizauskas
OBJECTIVE: To evaluate the effects of Pilates exercises designed to improve isometric trunk extension and flexion strength of muscles in women with chronic low back pain (cLBP). PARTICIPANTS: Female volunteers with cLBP were divided into an experimental group (EG; n = 27) and a control group (CG; n = 27). INTERVENTION: Pilates exercises were performed twice per week by the EG; the duration of each session was 60 min. The program lasted for 16 weeks; thus patients underwent a total of 32 exercise sessions...
January 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28166186/between-session-reliability-of-isometric-mid-thigh-pull-kinetics-and-maximal-power-clean-performance-in-male-youth-soccer-players
#16
Thomas Dos'Santos, Christopher Thomas, Paul Comfort, John J McMahon, Paul A Jones, Nick P Oakley, Ashley L Young
The aim of the study was to determine the between-session reliability of isometric mid-thigh pull (IMTP) kinetics and maximal weight lifted during the power clean (PC) in male youth soccer players, and to identify the smallest detectable differences between sessions. Thirteen male youth soccer players (age: 16.7 ± 0.5 years, height: 1.80 ± 0.08 m, mass: 70.5 ± 9.4 kg) performed three IMTP trials, while only ten soccer players performed maximal power cleans. These were performed twice, separated by 48 hours to examine the between-session reliability...
February 1, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28151781/acute-effects-of-eccentric-overload-on-concentric-front-squat-performance
#17
Cameron N Munger, David C Archer, Whitney D Leyva, Megan A Wong, Jared W Coburn, Pablo B Costa, Lee E Brown
Eccentric overload is used to enhance performance. The purpose of this study was to investigate the acute effects of eccentric overload on concentric front squat performance. Twenty resistance-trained males (age=23.80±1.82yrs, ht=176.95±5.21cm, mass=83.49±10.43kg, 1 Repetition Maximum [1RM] front squat=131.02±21.32kg) volunteered. A dynamic warm-up and warm-up sets of front squat were performed. Eccentric hooks were added to the barbell. They descended for 3 seconds, until eccentric hooks released, and performed the concentric phase as fast as possible...
January 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28149428/analysis-of-tests-evaluating-sport-climbers-strength-and-isometric-endurance
#18
Mariusz Ozimek, Robert Staszkiewicz, Robert Rokowski, Arkadiusz Stanula
The present study was designed to determine which types of specific tests provide an effective evaluation of strength and endurance in highly trained competitive sport climbers. The research process consisted of three basic components: the measurement of selected somatic characteristics of the climbers, the assessment of their physical conditioning, and a search for correlations between the anthropometric and "conditioning" variables on the one hand, and climber's performance on the other. The sample of subjects consisted of 14 experienced volunteer climbers capable of handling 7a- 8a+/b on-sight rock climbing grades...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149427/effects-of-plyometric-training-on-physical-fitness-in-team-sport-athletes-a-systematic-review
#19
Maamer Slimani, Karim Chamari, Bianca Miarka, Fabricio B Del Vecchio, Foued Chéour
Plyometric training (PT) is a very popular form of physical conditioning of healthy individuals that has been extensively studied over the last decades. In this article, we critically review the available literature related to PT and its effects on physical fitness in team sport athletes. We also considered studies that combined PT with other popular training modalities (e.g. strength/sprint training). Generally, short-term PT (i.e. 2-3 sessions a week for 4-16 weeks) improves jump height, sprint and agility performances in team sport players...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149414/neuroendocrine-responses-and-body-composition-changes-following-resistance-training-under-normobaric-hypoxia
#20
Jakub Chycki, Miłośz Czuba, Artur Gołaś, Adam Zając, Olga Fidos-Czuba, Adrian Młynarz, Wojciech Smółka
The aim of the present study was to evaluate the effects of a 6 week resistance training protocol under hypoxic conditions (FiO2 = 12.9%, 4000 m) on muscle hypertrophy. The project included 12 resistance trained male subjects, randomly divided into two experimental groups. Group 1 (n = 6; age 21 ± 2.4 years; body height [BH] 178.8 ± 7.3 cm; body mass [BM] 80.6 ± 12.3 kg) and group 2 (n = 6; age 22 ± 1.5 years; BH 177.8 ± 3.7cm; BM 81.1 ± 7.5 kg). Each group performed resistance exercises alternately under normoxic and hypoxic conditions (4000 m) for 6 weeks...
December 1, 2016: Journal of Human Kinetics
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