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https://www.readbyqxmd.com/read/29475152/relationship-between-rearfoot-tibia-and-femur-kinematics-in-runners-with-and-without-patellofemoral-pain
#1
Bruna Calazans Luz, Ana Flávia Dos Santos, Mariana Carvalho de Souza, Tatiana de Oliveira Sato, Deborah A Nawoczenski, Fábio Viadanna Serrão
BACKGROUND: Patellofemoral pain (PFP) is the most common running overuse injury. Excessive rearfoot eversion is commonly considered as a PFP risk factor and the relationship between ankle-foot complex movement and lower limb may be involved with this dysfunction. The purpose of this study was to evaluate the correlation between rearfoot eversion with tibia and femur kinematics in frontal and transverse planes during running in individuals with and without PFP. The secondary purpose was to compare the lower limb kinematics between runners with and without PFP...
February 12, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29430880/frequency-and-anatomical-distribution-of-magnetic-resonance-imaging-features-in-sacroiliac-joints-of-young-athletes-exploring-background-noise-towards-a-data-driven-definition-of-sacroiliitis-in-early-spondyloarthritis
#2
Ulrich Weber, Anne Grethe Jurik, Anna Zejden, Ejnar Larsen, Steen Hylgaard Jørgensen, Kaspar Rufibach, Christian Schioldan, Søren Schmidt-Olsen
OBJECTIVE: Low grade bone marrow edema (BME) was reported in the sacroiliac joints (SIJ) of 25% of healthy individuals and mechanical back pain patients, challenging the imaging discrimination from early spondyloarthritis (SpA). It is unknown whether stress injury in competition sports may trigger BME. We explored frequency and anatomical distribution of SIJ MRI lesions in recreational and elite athletes. METHODS: After pre-test calibration, semicoronal SIJ MRI scans of 20 recreational runners (RR) before/after running and 22 elite ice-hockey players (IP) were assessed by 3 blinded readers for BME and structural lesions using an SIJ quadrant-based module...
February 12, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29415294/the-impact-of-mild-heat-stress-during-prolonged-running-on-gastrointestinal-integrity-gastrointestinal-symptoms-systemic-endotoxin-and-cytokine-profiles
#3
Rhiannon M J Snipe, Anthony Khoo, Cecilia M Kitic, Peter R Gibson, Ricardo J S Costa
The study aimed to determine the effects of mild exertional heat stress on intestinal injury, permeability, gastrointestinal symptoms, and systemic endotoxin and cytokine responses. Ten endurance runners completed 2 h of running at 60% V̇O2max in warm (WARM: 30°C) and temperate (TEMP: 22°C) ambient conditions. Rectal temperature (Tre) and gastrointestinal symptoms were recorded every 10 min during exercise. Blood samples were collected pre- and post-exercise, and during recovery to determine plasma intestinal fatty acid-binding protein (I-FABP) and cortisol concentrations, and systemic endotoxin and inflammatory cytokine profiles...
February 7, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29387447/prospective-monitoring-of-health-problems-among-recreational-runners-preparing-for-a-half-marathon
#4
Karsten Hollander, Antje Baumann, Astrid Zech, Evert Verhagen
Objectives: While the health benefits of running are legitimately advocated, participation in running can also lead to health problems. There is a high range of reported prevalence rates especially of running-related overuse injuries in high-level athletes and during competition. Little consensus exists for acute injuries and illnesses especially in recreational runners. Therefore, the aim of this study was to record the prevalence of health problems in recreational long-distance runners preparing for an event...
2018: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29371075/does-the-temperature-of-water-ingested-during-exertional-heat-stress-influence-gastrointestinal-injury-symptoms-and-systemic-inflammatory-profile
#5
Rhiannon M J Snipe, Ricardo J S Costa
OBJECTIVES: The study aimed to determine the effects of temperature of ingested water during exertional-heat stress on gastrointestinal injury, symptoms and systemic inflammatory responses. DESIGN: Randomised cross-over study. METHODS: Twelve endurance runners completed 2h running at 60% v˙O2max in 35°C ambient temperature on three separate occasions, consuming 250±40mL water before and every 15min during running at either 0.4±0.4°C (COLD), 7...
January 8, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29334675/effects-of-running-retraining-on-biomechanical-factors-associated-with-lower-limb-injury
#6
Marcus D Dunn, David B Claxton, Graham Fletcher, Jonathan S Wheat, David M Binney
Injury risk is an important concern for runners; however, limited evidence exists regarding changes to injury risk following running style retraining. Biomechanical factors, such as absolute peak free moment, knee abduction impulse, peak foot eversion and foot eversion excursion, have been shown to predict lower limb injury. The aim of this study was to assess the effects of Pose running retraining on biomechanical factors associated with lower limb running injury. Twenty uninjured recreational runners were pair-matched based on their five km run time performance and randomly assigned to control (n = 10) and intervention (three 2-h Pose running retraining sessions) groups (n = 10)...
January 12, 2018: Human Movement Science
https://www.readbyqxmd.com/read/29332742/the-effects-of-dorso-lumbar-motion-restriction-on-emg-activity-of-selected-muscles-during-running
#7
Joseph J Morley, Edward Traum
The effects of restricting dorso-lumbar spine mobility on electromyographic activity of the erector spinae, quadriceps femoris, hamstrings and gastrocnemius muscles in runners was investigated. Thermoplastic casting material was fashioned into a rigid orthosis and used to restrict spinal motion during running. Volunteers ran on a treadmill at 2.78 m/sec, under normal conditions and with spinal motion restricted. Surface electromyographic data was collected during both sets of trials. Normal electromyographic data was also compared with previous authors to determine similarity with their electromyographic data...
January 2018: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29320436/the-feasibility-and-usability-of-runningcoach-a-remote-coaching-system-for-long-distance-runners
#8
Daniel Aranki, Gao Xian Peh, Gregorij Kurillo, Ruzena Bajcsy
Studies have shown that about half of the injuries sustained during long-distance running involve the knee. Cadence (steps per minute) has been identified as a factor that is strongly associated with these running-related injuries, making it a worthwhile candidate for further study. As such, it is critical for long-distance runners to minimize their risk of injury by running at an appropriate running cadence. In this paper, we present the results of a study on the feasibility and usability of RunningCoach, a mobile health (mHealth) system that remotely monitors running cadence levels of runners in a continuous fashion, among other variables, and provides immediate feedback to runners in an effort to help them optimize their running cadence...
January 10, 2018: Sensors
https://www.readbyqxmd.com/read/29289028/experience-does-not-influence-injury-related-joint-kinematics-and-kinetics-in-distance-runners
#9
Cristine E Agresta, Jillian Peacock, Jeffrey Housner, Ronald F Zernicke, Jessica Deneweth Zendler
PURPOSE: Increased running experience and more time spent running appears to be advantageous in reducing injury risk, although the reason behind this is unclear. It is plausible that more experience results in better running mechanics leading to less injuries. Running mechanics are often screened during clinical assessments and targeted for correction in gait retraining, particularly those thought to be global indicators of injury or those associated with elevated knee joint loading. Examining the biomechanics of runners who are less-injury prone can improve our understanding of the significance of faulty running mechanics in relation to injury...
December 20, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29283932/glomerular-filtration-rate-is-unchanged-by-ultramarathon
#10
Wojciech Wołyniec, Wojciech Ratkowski, Katarzyna Kasprowicz, Zbigniew Jastrzębski, Sylwia Małgorzewicz, Konrad Witek, Tomasz Grzywacz, Piotr Żmijewski, Marcin Renke
THE MAIN PROBLEM: Acute kidney injury (AKI) is reported as a common complication of marathon and ultramarathon running. In previous studies AKI was diagnosed on the basis of the creatinine level in serum and estimated glomerular filtration rate (eGFR). In the present study we calculated eGFR and also measured creatinine clearance after every 25 km of a 100 km run. METHODS: 20 healthy, amateur runners (males, mean age 40.75 ± 7.15 years, mean weight 76.87 ± 8.39 kg) took part in a 100 km run on a track...
December 27, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29259804/acute-kidney-injury-associated-with-endurance-events-is-it-a-cause-for-concern-a-systematic-review
#11
L E Hodgson, E Walter, R M Venn, R Galloway, Y Pitsiladis, F Sardat, L G Forni
Introduction: A growing body of evidence suggests even small rises in serum creatinine (SCr) are of considerable clinical relevance. Given that participants in endurance events are exposed to potential (repeated) renal insults, a systematic review was undertaken to collate current evidence for acute kidney injury (AKI), complicating such events. Methods: A systematic review of studies and case reports meeting inclusion criteria on Medline and EMBASE (inception to October 2015)...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29249454/biomechanical-consequences-of-running-with-deep-core-muscle-weakness
#12
Margaret E Raabe, Ajit M W Chaudhari
The deep core muscles are often neglected or improperly trained in athletes. Improper function of this musculature may lead to abnormal spinal loading, muscle strain, or injury to spinal structures, all of which have been associated with increased low back pain (LBP) risk. The purpose of this study was to identify potential strategies used to compensate for weakness of the deep core musculature during running and to identify accompanying changes in compressive and shear spinal loads. Kinematically-driven simulations of overground running were created for eight healthy young adults in OpenSim at increasing levels of deep core muscle weakness...
December 6, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29234566/the-rehabilitation-of-a-runner-with-iliopsoas-tendinopathy-using-an-eccentric-biased-exercise-a-case-report
#13
Carla Rauseo
Background and Purpose: While there is much discussion about tendinopathy in the literature, there is little reference to the less common condition of iliopsoas tendinopathy, and no documentation of the condition in runners. The iliopsoas is a major decelerator of the hip and eccentric loading of the iliopsoas is an important component of energy transfer during running. Eccentric training is a thoroughly researched method of treating tendinopathy but has shown mixed results. The purpose of this case report is to describe the rehabilitation of a runner with iliopsoas tendinopathy, and demonstrate in a creative eccentric-biased technique to assist with treatment...
December 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29209417/do-athletes-alter-their-running-mechanics-after-an-achilles-tendon-rupture
#14
Daniel Jandacka, Julia Freedman Silvernail, Jaroslav Uchytil, David Zahradnik, Roman Farana, Joseph Hamill
Background: Over the past thirty years, there has been dramatic increase in incidence of Achilles tendon rupture in the athletic population. The purpose of this study was to compare the lower extremity mechanics of Achilles tendon ruptured runners with healthy controls. Methods: The participants with a past history of an Achilles tendon repair (n = 11) and healthy control (n = 11) subgroups were matched on sex, age, type of regular physical activity, mass, height, footfall pattern and lateral dominancy...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/29202625/the-relationship-between-the-use-of-running-applications-and-running-related-injuries
#15
Ellen Kemler, Kalynda Romeijn, Ingrid Vriend, Bionka Huisstede
OBJECTIVES: Training errors are suggested to be an important cause of running-related injuries (RRI). As most runners train individually, digital coaching using running applications is becoming increasingly popular. However, the quality of these applications is unknown. The aim of the present cross-sectional study was to evaluate the relationship between the use of running applications and running-related injuries. METHODS: An online questionnaire was used to collect data on running activities of 1,029 runners, their injuries, and the association between the use of running applications and running-related injuries...
December 5, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29194186/the-impact-of-different-cross-training-modalities-on-performance-and-injury-related-variables-in-high-school-cross-country-runners
#16
Max R Paquette, Shelby A Peel, Ross E Smith, Mark Temme, Jeffrey N Dwyer
There are many different types of aerobic cross-training modalities currently available. It is important to consider the effects that these different modalities have on running performance and injury risks. The purpose of this study was to compare movement quality, running economy and performance, injury-related biomechanical variables and, hip muscle strength before and after training with different cross-training modalities in high school runners. Thirty-one high school male runners trained for four weeks in one of three cross-training modalities, in addition to a running-only (RUN, n=9) group, for which training sessions replaced two easy runs per week: cycling (CYCLE; n=6), indoor elliptical (ELLIP; n=7) and, outdoor elliptical bike (EBIKE; n=9)...
November 29, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29181248/effect-of-heel-lifts-on-patellofemoral-joint-stress-during-running
#17
Zachary Mestelle, Thomas Kernozek, Kelly S Adkins, Jessica Miller, Naghmeh Gheidi
Background: Patellofemoral pain is a debilitating injury for many recreational runners. Excessive patellofemoral joint stress may be the underlying source of pain and interventions often focus on ways to reduce patellofemoral joint stress. Purpose: Heel lifts have been used as an intervention within Achilles tendon rehabilitation programs and to address leg length discrepancies. The purpose of this study was to examine the effect of running with heel lifts on patellofemoral joint stress, patellofemoral stress impulse, quadriceps force, step length, cadence, and other related kinematic and spatiotemporal variables...
October 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29172095/innovations-and-pitfalls-in-the-use-of-wearable-devices-in-the-prevention-and-rehabilitation-of-running-related-injuries
#18
Richard W Willy
Running-related injuries are common and are associated with a high rate of reoccurrence. Biomechanics and errors in applied training loads are often cited as causes of running-related injuries. Clinicians and runners are beginning to utilize wearable technologies to quantify biomechanics and training loads with the hope of reducing the incidence of running-related injuries. Wearable devices can objectively assess biomechanics and training loads in runners, yet guidelines for their use by clinicians and runners are not currently available...
October 6, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29171352/the-one-week-and-six-month-reliability-and-variability-of-three-dimensional-tibial-acceleration-in-runners
#19
Kelly R Sheerin, Thor F Besier, Duncan Reid, Patria A Hume
Tibial acceleration is a surrogate measure for impact loading and lower limb fatigue injury in runners. Triaxial accelerometers may offer reliable and practical measurement of resultant peak tibial acceleration (PTA). With such potential in mind, this study examined variability and measurement reliability of tibial acceleration in 14 runners at baseline at one week, and eight of the runners again at six months. Triaxial accelerometers were attached to the distal tibiae of runners before they ran on a treadmill for two minutes each, at speeds of 2...
November 24, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/29164109/identification-of-directed-interactions-in-kinematic-data-during-running
#20
Giovana Y Nakashima, Theresa H Nakagawa, Ana F Dos Santos, Fábio V Serrão, Michel Bessani, Carlos D Maciel
The knowledge of motion dynamics during running activity is crucial to enhance the development of rehabilitation techniques and injury prevention programs. Recent studies investigated the interaction between joints, using several analysis techniques, as cross-correlation, sensitivity analysis, among others. However, the direction of the joints pairing is still not understood. This paper proposes a study of the influence direction pattern in healthy runners by using kinematic data together with partial directed coherence, a frequency approach of Granger causality...
2017: Frontiers in Bioengineering and Biotechnology
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