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https://www.readbyqxmd.com/read/27893477/an-evaluation-of-agonist-antagonist-strength-ratios-and-posture-among-powerlifters
#1
Paul T Cutrufello, Stephen J Gadomski, Nicholas A Ratamess
Powerlifters routinely focus on three exercises: bench press, squat, and deadlift. This focus may predispose them to the development of muscle imbalances in either the upper or lower extremity which might also influence posture. Therefore, the purpose of the present study was to examine the agonist:antagonist strength ratios and their relationship to postural measures among powerlifters. An expost facto study design compared fifteen male powerlifters (35.3±13.7 years old) and fifteen age-matched controls (34...
November 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27806009/tapering-practices-of-croatian-open-class-powerlifting-champions
#2
Jozo Grgic, Pavle Mikulic
The aim of this study was to explore tapering practices among 10 Croatian open-class powerlifting champions (mean ± SD: age 29.2 ± 3.2 years; Wilks coefficient 355.1 ± 54.8). The athletes were interviewed about their tapering practices using a semi-structured interview, after which the audio content was transcribed. The athletes reported decreasing training volume during the taper by 50.5 ± 11.7% using a step type or an exponential type of taper with a fast decay. Training intensity was maintained or increased during the taper, and it reached its highest values 8 ± 3 days before the competition...
October 27, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27707741/injuries-among-weightlifters-and-powerlifters-a-systematic-review
#3
Ulrika Aasa, Ivar Svartholm, Fredrik Andersson, Lars Berglund
BACKGROUND: Olympic weightlifting and powerlifting are two sports that expose the body to great forces. Injury characteristics have not been systematically reviewed for these two growing sports. OBJECTIVE: The purpose of this study was to systematically review the literature regarding various definitions of injuries used, injury localisation, the prevalence and incidence of injuries and the associated risk factors for injuries in weightlifting and powerlifting. DESIGN: Systematic review...
October 4, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27601773/association-analysis-of-ace-actn3-and-ppargc1a-gene-polymorphisms-in-two-cohorts-of-european-strength-and-power-athletes
#4
V Gineviciene, A Jakaitiene, M O Aksenov, A V Aksenova, A M Druzhevskaya, I V Astratenkova, E S Egorova, L J Gabdrakhmanova, L Tubelis, V Kucinskas, A Utkus
The performance of professional strength and power athletes is influenced, at least partly, by genetic components. The main aim of this study was to investigate individually and in combination the association of ACE (I/D), ACTN3 (R577X) and PPARGC1A (Gly482Ser) gene polymorphisms with strength/power-oriented athletes' status in two cohorts of European athletes. A cohort of European Caucasians from Russia and Lithuania (161 athletes: by groups - weightlifters (87), powerlifters (60), throwers (14); by elite status - 'elite' (104), 'sub-elite' (57); and 1,202 controls) were genotyped for ACE, ACTN3 and PPARGC1A polymorphisms...
September 2016: Biology of Sport
https://www.readbyqxmd.com/read/27396416/resting-extracellular-signal-regulated-protein-kinase-1-2-expression-following-a-continuum-of-chronic-resistance-exercise-training-paradigms
#5
Andrew J Galpin, Andrew C Fry, Justin X Nicoll, Christopher A Moore, Brian K Schilling, Donald B Thomason
Extracellular signal-regulated protein kinase 1/2 (ERK1/2) moderates skeletal muscle growth; however, chronic responses of this protein to unique resistance exercise (RE) paradigms are yet to be explored. The purpose of this investigation was to describe the long-term response of ERK1/2 following circuit weight training (CWT), recreationally weight training (WT), powerlifting (PL) and weightlifting (WL). Independent t-tests were used to determine differences in trained groups compared to sedentary controls...
July 2016: Research in Sports Medicine
https://www.readbyqxmd.com/read/27361572/an-evaluation-of-agonist-antagonist-strength-ratios-and-posture-in-an-elite-powerlifter-3003-board-68-june-3-3-30-pm-5-00-pm
#6
Paul T Cutrufello, Stephen J Gadomski, Nicholas A Ratamess
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27328853/the-epidemiology-of-injuries-across-the-weight-training-sports
#7
Justin W L Keogh, Paul W Winwood
BACKGROUND: Weight-training sports, including weightlifting, powerlifting, bodybuilding, strongman, Highland Games, and CrossFit, are weight-training sports that have separate divisions for males and females of a variety of ages, competitive standards, and bodyweight classes. These sports may be considered dangerous because of the heavy loads commonly used in training and competition. OBJECTIVES: Our objective was to systematically review the injury epidemiology of these weight-training sports, and, where possible, gain some insight into whether this may be affected by age, sex, competitive standard, and bodyweight class...
June 21, 2016: Sports Medicine
https://www.readbyqxmd.com/read/27243918/rpe-and-velocity-relationships-for-the-back-squat-bench-press-and-deadlift-in-powerlifters
#8
Eric R Helms, Adam Storey, Matt R Cross, Scott R Brown, Seth Lenetsky, Hamish Ramsay, Carolina Dillen, Michael C Zourdos
The purpose of this study was to compare average concentric velocity (ACV) and rating of perceived exertion (RPE) based on repetitions in reserve on the squat, bench press and deadlift. Fifteen powerlifters (3 female, 12 male, 28.4 ± 8.5 years) worked up to a one repetition maximum (1RM) on each lift. RPE was recorded on all sets and ACV was recorded for all sets performed at 80% of estimated 1RM and higher, up to 1RM. RPE at 1RM on the squat, bench press and deadlift was 9.6 ± 0.5, 9.7 ± 0.4 and 9.6 ± 0...
May 25, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/26881803/the-impact-of-competitive-trait-anxiety-on-collegiate-powerlifting-performance
#9
Lawrence W Judge, Leslie J Urbina, Donald L Hoover, Bruce W Craig, Lani M Judge, Brianna M Leitzelar, David R Pearson, Kara A Holtzclaw, David M Bellar
Judge, LW, Urbina, LJ, Hoover, DL, Craig, BW, Judge, LM, Leitzelar, BM, Pearson, DR, Holtzclaw, KA, and Bellar, DM. The impact of competitive trait anxiety on collegiate powerlifting performance. J Strength Cond Res 30(9): 2399-2405, 2016-The purpose of this study was to determine the relationship between competitive trait anxiety measures and powerlifting (PL) performance. Thirty-six collegiate powerlifters on club teams from 3 universities were recruited during a competition (men = 26, women = 10; age = 19...
September 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/26644989/biomechanical-implications-of-skeletal-muscle-hypertrophy-and-atrophy-a-musculoskeletal-model
#10
Andrew D Vigotsky, Bret Contreras, Chris Beardsley
Muscle hypertrophy and atrophy occur frequently as a result of mechanical loading or unloading, with implications for clinical, general, and athletic populations. The effects of muscle hypertrophy and atrophy on force production and joint moments have been previously described. However, there is a paucity of research showing how hypertrophy and atrophy may affect moment arm (MA) lengths. The purpose of this model was to describe the mathematical relationship between the anatomical cross-sectional area (ACSA) of a muscle and its MA length...
2015: PeerJ
https://www.readbyqxmd.com/read/26453890/the-epidemiology-of-injuries-in-powerlifting-at-the-london-2012-paralympic-games-an-analysis-of-1411-athlete-days
#11
S E Willick, D M Cushman, C A Blauwet, C Emery, N Webborn, W Derman, M Schwellnus, J Stomphorst, P Van de Vliet
Sport injury epidemiology has received increased recognition as a field of sport medicine research that can improve the health and safety of athletes. Injuries among Paralympic powerlifters have not previously been systematically studied. The purpose of this prospective cohort study was to characterize injuries among Paralympic powerlifters. Athletes competing in the sport of powerlifting were followed over the 7-day competition period of the 2012 London Paralympic Games. The main outcome measurements were injury incidence rate (IR; number of injuries per 1000 athlete-days) and injury incidence proportion (IP; injuries per 100 athletes)...
October 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/26332783/modified-daily-undulating-periodization-model-produces-greater-performance-than-a-traditional-configuration-in-powerlifters
#12
Michael C Zourdos, Edward Jo, Andy V Khamoui, Sang-Rok Lee, Bong-Sup Park, Michael J Ormsbee, Lynn B Panton, Robert J Contreras, Jeong-Su Kim
The primary aim of this study was to compare 2 daily undulating periodization (DUP) models on one-repetition maximum (1RM) strength in the squat, bench press, deadlift, total volume (TV) lifted, and temporal hormone response. Eighteen male, college-aged (21.1 ± 1.9 years) powerlifters participated in this study and were assigned to one of 2 groups: (a) traditional DUP training with a weekly training order: hypertrophy-specific, strength-specific, and power-specific training (HSP, n = 9) or (b) modified DUP training with a weekly training order: hypertrophy-specific, power-specific, and strength-specific training (HPS, n = 9)...
March 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/26055260/the-effects-of-grip-width-on-sticking-region-in-bench-press
#13
Olav Gomo, Roland Van Den Tillaar
The aim of this study was to examine the occurrence of the sticking region by examining how three different grip widths affect the sticking region in powerlifters' bench press performance. It was hypothesised that the sticking region would occur at the same joint angle of the elbow and shoulder independent of grip width, indicating a poor mechanical region for vertical force production at these joint angles. Twelve male experienced powerlifters (age 27.7 ± 8.8 years, mass 91.9 ± 15.4 kg) were tested in one repetition maximum (1-RM) bench press with a narrow, medium and wide grip...
2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/25828698/-cardiovascular-alterations-associated-with-doping
#14
D Thieme, A Büttner
Doping -the abuse of anabolic-androgenic steroids in particular- is widespread in amateur and recreational sports and does not solely represent a problem of professional sports. Excessive overdose of anabolic steroids is well documented in bodybuilding or powerlifting leading to significant side effects. Cardiovascular damages are most relevant next to adverse endocrine effects.Clinical cases as well as forensic investigations of fatalities or steroid consumption in connection with trafficking of doping agents provide only anecdotal evidence of correlations between side effects and substance abuse...
May 2015: Herz
https://www.readbyqxmd.com/read/25611080/anthropometric-profile-of-powerlifters-differences-as-a-function-of-bodyweight-class-and-competitive-success
#15
M Lovera, J Keogh
AIM: This study sought to better understand the relationship between anthropometric profile and maximal strength, as assessed in the sport of powerlifting as relatively little research has examined how differences in anthropometry may contribute to bodyweight-related differences in performance or between more and less successful lifters in the same bodyweight class. METHODS: To address this aim, 63 male powerlifters from an Argentine National Tournament were assessed for 31 anthropometric variables taken using ISAK (International Society for the Advancement of Kinanthropometry) protocols...
May 2015: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/25559899/which-patients-with-low-back-pain-benefit-from-deadlift-training
#16
RANDOMIZED CONTROLLED TRIAL
Lars Berglund, Björn Aasa, Jonas Hellqvist, Peter Michaelson, Ulrika Aasa
Recent studies have indicated that the deadlift exercise may be effective in decreasing pain intensity and increasing activity for most, but not all, patients with a dominating pattern of mechanical low back pain. This study aimed to evaluate which individual factors measured at baseline could predict activity, disability, and pain intensity in patients with mechanical low back pain after an 8-week training period involving the deadlift as a rehabilitative exercise. Thirty-five participants performed deadlift training under the supervision of a physical therapist with powerlifting experience...
July 2015: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/25552808/virtual-coaching-for-the-high-intensity-training-of-a-powerlifter-following-coronary-artery-bypass-grafting
#17
Richard Adams, Jenny Adams, Huanying Qin, Tim Bilbrey, Jeffrey M Schussler
A 55-year-old powerlifter in Tennessee learned about the sport-specific, high-intensity cardiac rehabilitation training available in Dallas, Texas, and contacted the staff by phone. He was recovering from quadruple coronary artery bypass grafting (CABG) and had completed several weeks of traditional cardiac rehabilitation in his hometown, but the exercise program no longer met his needs. He wanted help in returning both to his normal training regimen and to powerlifting competition but was unable to attend the Dallas program in person...
January 2015: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/24886919/injuries-and-overuse-syndromes-in-competitive-and-elite-bodybuilding
#18
J Siewe, G Marx, P Knöll, P Eysel, K Zarghooni, M Graf, C Herren, R Sobottke, J Michael
Competitive bodybuilding is a weightlifting sport similar to powerlifting, strongman competition and Olympic weightlifting, which aims to increase muscle mass, symmetry, and body definition. Although data regarding rates of injury, overuse syndromes and pain during routine training is available for these other disciplines, it is rare for competitive bodybuilding. The aim of this study was to investigate rates of injury, pain during workouts and/or overuse syndromes, as well as the influence of particular intrinsic and external factors...
October 2014: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/24885227/complex-regional-pain-syndrome-in-a-competitive-athlete-and-regional-osteoporosis-assessed-by-dual-energy-x-ray-absorptiometry-a-case-report
#19
Karen Hind, Mark I Johnson
INTRODUCTION: Dual-energy X-ray absorptiometry is rarely utilized in the clinical care of patients with complex regional pain syndrome, but may be useful for the non-invasive determination of regional bone fragility and fracture risk, as well as muscular atrophy and regional body composition. This is the first report in the literature of complex regional pain syndrome and musculoskeletal co-morbidities in an athlete, and is the first to focus on dual-energy X-ray absorptiometry for the clinical assessment of complex regional pain syndrome...
May 27, 2014: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/24840507/detection-of-exercise-load-associated-differences-in-hip-muscles-by-texture-analysis
#20
G Nketiah, S Savio, P Dastidar, R Nikander, H Eskola, H Sievänen
We examined whether specific physical exercise loading is associated with texture parameters from hip muscles scanned with magnetic resonance imaging (MRI). Ninety-one female athletes representing five distinct exercise-loading groups (high-impact, odd-impact, low-impact, nonimpact and high-magnitude) and 20 nonathletic female controls underwent MRI of the hip. Texture parameters were computed from the MRI images of four hip muscles (gluteus maximus, gluteus medius, iliopsoas and obturator internus). Differences in muscle texture between the athlete groups and the controls were evaluated using Mann-Whitney U-test...
June 2015: Scandinavian Journal of Medicine & Science in Sports
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