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https://www.readbyqxmd.com/read/29035979/effect-of-a-commercially-available-footwear-insole-on-biomechanical-variables-associated-with-common-running-injuries
#1
Ryan T Lewinson, Darren J Stefanyshyn
OBJECTIVE: To determine whether Dr. Scholl's Active Series (DSAS) footwear insoles alter biomechanical variables associated with running injuries. DESIGN: Randomized, controlled experiment. SETTING: Sport medicine and biomechanics gait analysis laboratory. PARTICIPANTS: Fifteen healthy adults. INTERVENTIONS: The control condition was the participant's own athletic footwear. The experimental condition was the participant's own athletic footwear plus a DSAS insole...
October 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29016393/biomechanical-implications-of-training-volume-and-intensity-in-aging-runners
#2
Max R Paquette, Paul DeVita, D S Blaise Williams
Running speed is slower in middle-aged compared to younger runners due to reduced ankle but not hip and knee kinetic output. Running-specific training helps attenuate age-related declines in measures of endurance, muscle strength and gait speed. Considering the adaptability of the human body in response to imposed stresses, maintaining training volume and intensity may play a role in modifying running biomechanics in middle-aged runners. PURPOSE: To compare running biomechanics between young and middle-aged runners when controlling for the confounding effects of training volume and intensity...
October 9, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28993130/gait-retraining-versus-foot-orthoses-for-patellofemoral-pain-a-pilot-randomised-clinical-trial
#3
Jason Bonacci, Michelle Hall, Natalie Saunders, Bill Vicenzino
OBJECTIVES: To determine the feasibility of a clinical trial that compares a 6-week, physiotherapist-guided gait retraining program with a foot orthoses intervention in runners with patellofemoral pain. DESIGN: Pilot randomised controlled trial. METHODS: Runners aged 18-40 years with clinically diagnosed patellofemoral pain were randomly allocated to either a 6-week gait retraining intervention of increasing cadence and use of a minimalist shoe or prefabricated foot orthoses...
October 2, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28978462/sex-specific-kinetic-and-kinematic-indicators-of-medial-tibiofemoral-force-during-walking-and-running
#4
Jean-Francois Esculier, Richard W Willy, Michael W Baggaley, Stacey A Meardon, John D Willson
BACKGROUND: Our aims were to (1) Evaluate sex-specific contributions of peak knee flexion moment (pKFM) and peak knee adduction moment (pKAM) in medial tibiofemoral joint (TFJ) force during walking and running; (2) identify kinematic variables to estimate peak medial TFJ force. METHODS: Eighty-seven runners participated (36 females, 51 males; age=23.0±3.8years (1 standard deviation)). Kinematics and kinetics data were collected during treadmill walking (1.3m/s) and running (3...
October 1, 2017: Knee
https://www.readbyqxmd.com/read/28918787/-running-and-causes-of-running-related-injuries
#5
Camilla Kjær Cullum, Peter Hung Thanh Tran, Simon Døssing
Running is one of the most popular sports among the adult Danish population. Overuse injuries of the knee, such as runners knee, jumpers knee, patello-femoral pain syndrome and patello-femoral pre-arthrosis, are common and cause reduction of the health beneficial physical activity. Treatment should primarily focus on adjustment of training habits and physiotherapeutic guided rehabilitation. Other treatment options include changing landing pattern during running, corticosteroid injections, non-steroid anti-inflammatory drugs and ultimately surgery...
September 18, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28900573/the-effects-of-a-multimodal-rehabilitation-program-on-pain-kinesiophobia-and-function-in-a-runner-with-patellofemoral-pain
#6
Samuele Passigli, Pietro Capacci, Emanuele Volpi
BACKGROUND AND PURPOSE: Multimodal interventions possess the strongest evidence in the long-term management of patellofemoral pain, but despite receiving evidence-based treatments that are initially effective many patients report recurrent or persistent symptoms for years after the initial diagnosis. Untreated psychological factors could be a possible explanation for persistent symptoms and poor treatment outcome. The purpose of this case report was to describe and evaluate the effects of a multimodal rehabilitation program that included pain education, a graded program of lower limb strengthening, and running retraining on pain, kinesiophobia, and function in a runner with patellofemoral pain...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28900569/there-are-no-biomechanical-differences-between-runners-classified-by-the-functional-movement-screen
#7
Rodrigo Ribeiro de Oliveira, Shalimá Figueirêdo Chaves, Yuri Lopes Lima, Márcio Almeida Bezerra, Gabriel Peixoto Leão Almeida, Pedro Olavo de Paula Lima
BACKGROUND: Running has been one of the main choices of physical activity in people seeking an active lifestyle. The Functional Movement Screen (FMS™) is a screening tool that aims to discern movement competency. PURPOSE: The purposes of this study were to compare biomechanical characteristics between two groups rated using the composite FMS™ score, and to analyze the influence of specific individual tests. The hypothesis was that the group that scored above 14 would demonstrate better performance on biomechanical tests than the group that scored below 14...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28837918/biomechanical-analysis-of-gait-waveform-data-exploring-differences-between-shod-and-barefoot-running-in-habitually-shod-runners
#8
Nicholas Tam, Danielle Prins, Nikhil V Divekar, Robert P Lamberts
The aim of this study was to utilise one-dimensional statistical parametric mapping to compare differences between biomechanical and electromyographical waveforms in runners when running in barefoot or shod conditions. Fifty habitually shod runners were assessed during overground running at their current 10-km race running speed. Electromyography, kinematics and ground reaction forces were collected during these running trials. Joint kinetics were calculated using inverse dynamics. One-dimensional statistical parametric mapping one sample t-test was conducted to assess differences over an entire gait cycle on the variables of interest when barefoot or shod (p<0...
October 2017: Gait & Posture
https://www.readbyqxmd.com/read/28820647/acute-fatigue-negatively-affects-risk-factors-for-injury-in-trained-but-not-well-trained-habitually-shod-runners-when-running-barefoot
#9
Nicholas Tam, Devon R Coetzee, Safwaan Ahmed, Robert P Lamberts, Yumna Albertus-Kajee, Ross Tucker
INTRODUCTION: Many factors may contribute to running-related injury. These include fatigue and footwear, the combination of which has rarely been studied, in particular with reference to barefoot running, recently advocated as a method to reduce injury risk. METHODS: Twenty-two runners (12 well-trained and 10 trained) participated in a 10 km fatiguing trial. Knee and ankle joint kinematics and kinetics and electromyography were assessed during overground running in the barefoot and shod condition...
October 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28812039/three-dimensional-biomechanical-analysis-of-rearfoot-and-forefoot-running
#10
Sebastian Knorz, Felix Kluge, Kolja Gelse, Stefan Schulz-Drost, Thilo Hotfiel, Matthias Lochmann, Björn Eskofier, Sebastian Krinner
BACKGROUND: In the running community, a forefoot strike (FFS) pattern is increasingly preferred compared with a rearfoot strike (RFS) pattern. However, it has not been fully understood which strike pattern may better reduce adverse joint forces within the different joints of the lower extremity. PURPOSE: To analyze the 3-dimensional (3D) stress pattern in the ankle, knee, and hip joint in runners with either a FFS or RFS pattern. STUDY DESIGN: Descriptive laboratory study...
July 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28799161/performance-factors-in-a-mountain-ultramarathon
#11
Pascal Balducci, Michel Clémençon, Robin Trama, Yoann Blache, Christophe Hautier
This study aimed to determine mountain ultra-marathon (MUM) performance factors in a large group of endurance mountain runners. Maximal aerobic speed (MAS) was assessed one week prior to the MUM. The level and graded (10%) energy cost of running, stiffness, knee extensors force (KEf), and jump height on a counter movement jump (CMJ) were measured in 24 male ultra runners before (pre) and immediately after (post) the Interlacs Trail (75 km and 3 930/3 700 m d+/d-). Performance time was correlated with MAS (r=- 0...
October 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28777956/frontal-plane-kinematics-predict-three-dimensional-hip-adduction-during-running
#12
Mark W Creaby, Scott Le Rossignol, Zachary J Conway, Eva Ageberg, Matthew Sweeney, Melinda M Franettovich Smith
OBJECTIVES: To investigate if frontal plane kinematics are predictive of three dimensional (3D) hip adduction and hip internal rotation during running. STUDY DESIGN: Cross-sectional. SETTING: Biomechanics laboratory. PARTICIPANTS: Thirty healthy male runners aged 18-45 years. MAIN OUTCOME MEASURES: Two dimensional (2D) angles in the frontal plane (peak pelvic obliquity, peak hip adduction, peak femoral valgus, peak knee valgus and peak tibial valgus) and 3D hip adduction and hip internal rotation during stance phase of running were obtained...
June 15, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28768339/habitual-minimalist-shod-running-biomechanics-and-the-acute-response-to-running-barefoot
#13
Nicholas Tam, Ian A J Darragh, Nikhil V Divekar, Robert P Lamberts
The aim of the study was to determine whether habitual minimalist shoe runners present with purported favorable running biomechanithat reduce running injury risk such as initial loading rate. Eighteen minimalist and 16 traditionally cushioned shod runners were assessed when running both in their preferred training shoe and barefoot. Ankle and knee joint kinetics and kinematics, initial rate of loading, and footstrike angle were measured. Sagittal ankle and knee joint stiffness were also calculated. Results of a two-factor ANOVA presented no group difference in initial rate of loading when participants were running either shod or barefoot; however, initial loading rate increased for both groups when running barefoot (p=0...
September 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28767525/comparison-of-lower-limb-and-back-exercises-for-runners-with-chronic-low-back-pain
#14
Congcong Cai, Yifan Yang, Pui W Kong
INTRODUCTION: This single-blind randomized trial was conducted to compare the treatment effect of lower limb (LL) exercises versus conventional lumbar extensor (LE) and lumbar stabilization (LS) exercises in recreational runners with chronic low back pain (cLBP), since there is currently no specific protocol for managing runners with cLBP. METHODS: 84 recreational runners with cLBP were allocated to three exercise groups (LL, LE, LS) for an 8-week intervention. Outcome measures included self-rated pain and running capability, lower limb strength, back muscles function, and running gait...
July 31, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28758835/kinematics-and-metabolic-cost-of-running-on-an-irregular-treadmill-surface
#15
Alyssa M Gantz, Timothy R Derrick
The purpose of this study was to investigate the kinematic and metabolic effects of running on an irregular surface. We also examined how altering the frontal plane foot angle (inversion/eversion) at contact using real-time visual feedback would affect these other variables. Sixteen participants completed three running bouts lasting 5-7 minutes each on an irregular surface (IS) treadmill, a traditional smooth surface (SS) treadmill, and on SS while receiving visual feedback of the frontal plane foot angle at contact (SSF) with a goal of matching IS foot angle on SS...
July 31, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28754421/the-effect-of-visual-focus-on-spatio-temporal-and-kinematic-parameters-of-treadmill-running
#16
Ángel G Lucas-Cuevas, Jose I Priego Quesada, Josh Gooding, Martin G C Lewis, Alberto Encarnación-Martínez, Pedro Perez-Soriano
The characteristics of a treadmill and the environment where it is based could influence the user's gaze and have an effect on their running kinematics and lower limb impacts. The aim of this study was to identify the effect of visual focus on spatio-temporal parameters and lower limb kinematics during treadmill running. Twenty six experienced runners ran at 3.33ms(-1) on a treadmill under two visual conditions, either looking ahead at a wall or looking down at the treadmill visual display. Spatio-temporal parameters, impact accelerations of the head and tibia, and knee and ankle kinematics were measured for the final 15s of a 90s bout of running under each condition...
July 15, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28706832/iliotibial-band-lengthening-an-arthroscopic-surgical-technique
#17
Todd P Pierce, Samuel J Mease, Kimona Issa, Anthony Festa, Vincent K McInerney, Anthony J Scillia
Iliotibial (IT) band syndrome is a common cause of lateral knee pain in runners and cyclists. Many can be treated nonoperatively; however, some may require surgical lengthening of their IT band to achieve optimal pain relief and a return to preinjury level of activity. Several studies have been published detailing surgical lengthening procedures and satisfactory outcomes after these procedures. However, it is important to continue to improve on and optimize outcomes. We present our arthroscopic IT band-lengthening procedure...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28654811/return-to-running-following-knee-osteochondral-repair-using-an-anti-gravity-treadmill-a-case-report
#18
Karen Hambly, Somruthai Poomsalood, Emma Mundy
BACKGROUND: The purpose of this study was to assess the impact of an anti-gravity treadmill return to running programme on self-efficacy and subjective knee function following knee osteochondral surgery. CASE DESCRIPTION: A 39-year-old otherwise healthy female endurance runner with a left knee femoral cartilage grade 3-4 defect 3 cm(2). The patient underwent single step arthroscopic microfracture with Bone Marrow Aspirate Concentrate. An AlterG(®) anti-gravity treadmill was used to manipulate loading during a graduated phased return to running over 8 weeks...
July 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28641058/acute-kinematics-changes-in-marathon-runners-using-different-footwear
#19
Tania Socorro Amorim Soares, Camila Fonseca de Oliveira, Federico Pizzuto, Rui Manuel Garganta, João Paulo Vila-Boas, Mario Casimiro da Anunciação Paiva
The effects of running with or without shoes on injury prevention have been extensively studied, and several investigations have assessed biomechanical differences between them. However, findings are not consensual and further insights on biomechanical load associated with differently shod or barefoot conditions may be needed. This study aimed to observe if habitually shod marathon runners show acute alterations when running barefoot or with minimalist shoes, and to determine whether the running kinematical adaptations of wearing minimalist shoes were similar to barefoot running...
June 22, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28632060/the-collision-forces-and-lower-extremity-inter-joint-coordination-during-running
#20
Li-I Wang, Chin-Yi Gu, I-Lin Wang, Sheng-Wun Siao, Szu-Ting Chen
The purpose of this study was to compare the lower extremity inter-joint coordination of different collision forces runners during running braking phase. A dynamical system approach was used to analyse the inter-joint coordination parameters. Data were collected with six infra-red cameras and two force plates. According to the impact peak of the vertical ground reaction force, twenty habitually rearfoot-strike runners were categorised into three groups: high collision forces runners (HF group, n = 8), medium collision forces runners (MF group, n = 5), and low collision forces runners (LF group, n = 7)...
February 28, 2017: Sports Biomechanics
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