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https://www.readbyqxmd.com/read/29771966/the-effect-of-chronic-progressive-dose-sodium-bicarbonate-ingestion-on-crossfit-like-performance-a-double-blind-randomized-cross-over-trial
#1
Krzysztof Durkalec-Michalski, Emilia E Zawieja, Tomasz Podgórski, Igor Łoniewski, Bogna E Zawieja, Marta Warzybok, Jan Jeszka
BACKGROUND: Sodium bicarbonate (SB) has been proposed as an ergogenic aid, as it improves high-intensity and resistance exercise performance. However, no studies have yet investigated SB application in CrossFit. This study examined the effects of chronic, progressive-dose SB ingestion on CrossFit-like performance and aerobic capacity. METHODS: In a randomized, double-blind, cross-over trial, 21 CrossFit-trained participants were randomly allocated to 2 groups and underwent 2 trials separated by a 14-day washout period...
2018: PloS One
https://www.readbyqxmd.com/read/29761610/pathways-and-mechanisms-linking-dietary-components-to-cardiometabolic-disease-thinking-beyond-calories
#2
REVIEW
K L Stanhope, M I Goran, A Bosy-Westphal, J C King, L A Schmidt, J-M Schwarz, E Stice, A C Sylvetsky, P J Turnbaugh, G A Bray, C D Gardner, P J Havel, V Malik, A E Mason, E Ravussin, M Rosenbaum, J A Welsh, C Allister-Price, D M Sigala, M R C Greenwood, A Astrup, R M Krauss
Calories from any food have the potential to increase risk for obesity and cardiometabolic disease because all calories can directly contribute to positive energy balance and fat gain. However, various dietary components or patterns may promote obesity and cardiometabolic disease by additional mechanisms that are not mediated solely by caloric content. Researchers explored this topic at the 2017 CrossFit Foundation Academic Conference 'Diet and Cardiometabolic Health - Beyond Calories', and this paper summarizes the presentations and follow-up discussions...
May 14, 2018: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29734573/hyperbaric-oxygen-therapy-as-treatment-for-bilateral-arm-compartment-syndrome-after-crossfit-case-report-and-literature-review
#3
Adriano Fernando Mendes, José da Mota Neto, Erica Maciel Heringer, Leandro Furtado de Simoni, Diego Demolinari Pires, Pedro José Labronici
Introduction: CrossFit is a physical fitness program characterized by high-intensity workouts that can be associated with serious injury. Acute compartment syndrome in the upper limbs is a rare occurrence. It may occur after intense physical exercise, and its usual treatment is surgical. Hyperbaric oxygen therapy is a treatment described as adjunctive in cases of compartmental syndrome. Presentation: We describe the case of a CrossFit practitioner who, after intense training, developed progressive symptoms of rhabdomyolysis and acute bilateral arm compartment syndrome, who was successfully treated with hyperbaric oxygen therapy and required no fasciotomy as surgical treatment...
March 2018: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/29601350/in-response-to-impact-of-crossfit-related-spinal-injuries
#4
Rodrigo L de Almeida, Victor G Carvalho, Frederico Ribeiro Neto
No abstract text is available yet for this article.
March 27, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29493531/-comparison-of-pelvic-floor-muscle-strength-in-competition-level-athletes-and-untrained-women
#5
Ingunn Ludviksdottir, Hildur Hardardottir, Thorgerdur Sigurdardottir, Gudmundur F Ulfarsson
INTRODUCTION: Exercise can stress the pelvic floor muscles. Numerous women experience urinary incontinence while exercising or competing in sports. This study investigated pelvic floor muscle strength, urinary incontinence, and knowledge in contracting pelvic floor muscles among female athletes and untrained women. MATERIALS AND METHODS: This was a prospective case-control study measuring pelvic floor muscle strength using vaginal pressure meas-urement. Participants answered questions regarding general health, urinary incontinence, and knowledge on pelvic floor muscles...
2018: Læknablađiđ
https://www.readbyqxmd.com/read/29484512/crossfit-overview-systematic-review-and-meta-analysis
#6
REVIEW
João Gustavo Claudino, Tim J Gabbett, Frank Bourgeois, Helton de Sá Souza, Rafael Chagas Miranda, Bruno Mezêncio, Rafael Soncin, Carlos Alberto Cardoso Filho, Martim Bottaro, Arnaldo Jose Hernandez, Alberto Carlos Amadio, Julio Cerca Serrão
BACKGROUND: CrossFit is recognized as one of the fastest growing high-intensity functional training modes in the world. However, scientific data regarding the practice of CrossFit is sparse. Therefore, the objective of this study is to analyze the findings of scientific literature related to CrossFit via systematic review and meta-analysis. METHODS: Systematic searches of the PubMed, Web of Science, Scopus, Bireme/MedLine, and SciELO online databases were conducted for articles reporting the effects of CrossFit training...
February 26, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29340353/clinical-performance-of-one-piece-screw-retained-implant-crowns-based-on-hand-veneered-cad-cam-zirconia-abutments-after-a-mean-follow-up-period-of-2-3-years
#7
Nicole Schnider, Fiona Alena Forrer, Urs Brägger, Stefan Paul Hicklin
PURPOSE: The aim of this study was to evaluate the clinical performance of one-piece, screw-retained implant crowns based on hand-veneered computer-aided design/computer-aided manufacture (CAD/CAM) zirconium dioxide abutments with a crossfit connection at least 1 year after insertion of the crown. MATERIALS AND METHODS: Consecutive patients who had received at least one Straumann bone level implant and one-piece, screw-retained implant crowns fabricated with CARES zirconium dioxide abutments were reexamined...
January 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29319656/isolated-rhabdomyolysis-of-the-infraspinatus-muscle-following-the-crossfit-sissy-test-a-report-of-two-cases
#8
Howard D Routman, Jacob J Triplet, Jennifer Kurowicki, Neil Singh
CASE: Following the completion of a CrossFit-style challenge (the "Sissy Test"), 2 patients presented with severe pain and swelling over the posterior aspect of the scapula. Magnetic resonance imaging demonstrated isolated edema of the infraspinatus muscle in both patients; the compartments were compressible. Neurovascular checks and observation of range of motion were performed. The patients were treated nonoperatively and were discharged with the diagnosis of overuse syndrome with rhabdomyolysis of the infraspinatus muscle...
January 2018: JBJS Case Connector
https://www.readbyqxmd.com/read/29318170/injury-incidence-and-patterns-among-dutch-crossfit-athletes
#9
Mirwais Mehrab, Robert-Jan de Vos, Gerald A Kraan, Nina M C Mathijssen
Background: CrossFit is a strength and conditioning program that has gained widespread recognition, with 11,000 affiliated gyms worldwide. The incidence of injuries during CrossFit training is poorly analyzed. Purpose: To investigate the incidence of injuries for persons participating in CrossFit. Risk factors for injury and injury mechanisms were also explored through athlete demographics and characteristics. Study Design: Descriptive epidemiology study...
December 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29238242/heart-rate-variability-is-a-moderating-factor-in-the-workload-injury-relationship-of-competitive-crossfit%C3%A2-athletes
#10
Sean Williams, Thomas Booton, Matthew Watson, Daniel Rowland, Marco Altini
Heart rate variability (HRV) is a popular tool for monitoring training adaptation and readiness in athletes, but it also has the potential to indicate early signs of somatic tissue overload prior to the onset of pain or fully developed injury. Therefore, the aim of this study was to investigate the interaction between HRV, workloads, and risk of overuse problems in competitive CrossFit™ athletes. Daily resting HRV and workloads (duration × session-RPE) were recorded in six competitive CrossFit™ athletes across a 16 week period...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29189338/impact-of-crossfit-related-spinal-injuries
#11
Benjamin S Hopkins, Michael B Cloney, Kartik Kesavabhotla, Jonathon Yamaguchi, Zachary A Smith, Tyler R Koski, Wellington K Hsu, Nader S Dahdaleh
INTRODUCTION: Exercise-related injuries (ERIs) are a common cause of nonfatal emergency department and hospital visits. CrossFit is a high-intensity workout regimen whose popularity has grown rapidly. However, ERIs due to CrossFit remained under investigated. METHODS: All patients who presented to the main hospital at a major academic center complaining of an injury sustained performing CrossFit between June 2010 and June 2016 were identified. Injuries were classified by anatomical location (eg, knee, spine)...
November 16, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29155648/the-benefits-and-risks-of-crossfit-a-systematic-review
#12
(no author information available yet)
No abstract text is available yet for this article.
December 2017: Workplace Health & Safety
https://www.readbyqxmd.com/read/29064882/crossfit-associated-allergic-contact-dermatitis
#13
Jennifer A Ledon, Antonella Tosti
No abstract text is available yet for this article.
November 2017: Dermatitis
https://www.readbyqxmd.com/read/29026796/effects-of-the-crossfit-exercise-data-analysis-on-body-composition-and-blood-profiles
#14
Eun-Ju Choi, Wi-Young So, Taikyeong Ted Jeong
No abstract text is available yet for this article.
September 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28753624/muscular-fatigue-in-response-to-different-modalities-of-crossfit-sessions
#15
José Luis Maté-Muñoz, Juan H Lougedo, Manuel Barba, Pablo García-Fernández, Manuel V Garnacho-Castaño, Raúl Domínguez
BACKGROUND: CrossFit is a new strength and conditioning regimen involving short intense daily workouts called workouts of the day (WOD). This study assesses muscular fatigue levels induced by the three modalities of CrossFit WOD; gymnastics (G), metabolic conditioning (M) and weightlifting (W). MATERIAL AND METHODS: 34 healthy subjects undertook three WOD (one per week): a G WOD consisting of completing the highest number of sets of 5 pull-ups, 10 push-ups and 15 air squats in 20 min; an M WOD, in which the maximum number of double skipping rope jumps was executed in 8 sets (20 s), resting (10 s) between sets; and finally, a W WOD in which the maximum number of power cleans was executed in 5 min, lifting a load equivalent to 40% of the individual's 1RM...
2017: PloS One
https://www.readbyqxmd.com/read/28727638/exertional-and-crossfit-induced-rhabdomyolysis
#16
Michelle Meyer, Sneha Sundaram, Ingeborg Schafhalter-Zoppoth
Few publications of exercise-induced rhabomyolysis currently exist in the medical literature besides case reports. However, this condition can be severe, resulting in hospitalization and IV fluid administration to prevent serious sequelae. This report describes a case of exercise-induced rhabdomyolysis caused by a CrossFit workout. A 31-year-old female presented with 2 days of bilateral upper extremity pain and soreness, which began 2 days after she completed a CrossFit workout. Workup revealed an elevated creatine phosphokinase (CPK) of 18 441 U/L, consistent with exercise-induced rhabdomyolysis, and elevated liver function tests and elevated D-dimer, although her renal function was normal...
July 14, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28557856/crossfit-based-high-intensity-power-training-improves-maximal-aerobic-fitness-and-body-composition-retraction
#17
(no author information available yet)
No abstract text is available yet for this article.
July 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28524725/a-sport-education-fitness-season-s-impact-on-students-fitness-levels-knowledge-and-in-class-physical-activity
#18
Jeffery Kurt Ward, Peter A Hastie, Danielle D Wadsworth, Shelby Foote, Sheri J Brock, Nikki Hollett
PURPOSE: The purpose of this study was to determine the extent to which a sport education season of fitness could provide students with recommended levels of in-class moderate-to-vigorous physical activity (MVPA) while also increasing students' fitness knowledge and fitness achievement. METHOD: One hundred and sixty-six 5th-grade students (76 boys, 90 girls) participated in a 20-lesson season called "CrossFit Challenge" during a 4-week period. The Progressive Aerobic Cardiovascular Endurance Run, push-ups, and curl-ups tests of the FITNESSGRAM® were used to assess fitness at pretest and posttest, while fitness knowledge was assessed through a validated, grade-appropriate test of health-related fitness knowledge (HRF)...
September 2017: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/28512155/functional-high-intensity-training-improves-pancreatic-%C3%AE-cell-function-in-adults-with-type-2-diabetes
#19
Stephan Nieuwoudt, Ciarán E Fealy, Julie A Foucher, Amanda R Scelsi, Steven K Malin, Mangesh Pagadala, Michael Rocco, Bartolome Burguera, John P Kirwan
Type 2 diabetes (T2D) is characterized by reductions in β-cell function and insulin secretion on the background of elevated insulin resistance. Aerobic exercise has been shown to improve β-cell function, despite a subset of T2D patients displaying "exercise resistance." Further investigations into the effectiveness of alternate forms of exercise on β-cell function in the T2D patient population are needed. We examined the effect of a novel, 6-wk CrossFit functional high-intensity training (F-HIT) intervention on β-cell function in 12 sedentary adults with clinically diagnosed T2D (54 ± 2 yr, 166 ± 16 mg/dl fasting glucose)...
September 1, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28399623/avoiding-misperception-and-misuse-of-crossfit%C3%A2-seeking-evidence-based-best-practice-recommendations-on-training-and-injury
#20
Scott N Drum, Bryanne N Bellovary Y, Randall L Jensen, Maggy T Moore, Lars Donath
No abstract text is available yet for this article.
May 2017: Journal of Sports Medicine and Physical Fitness
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