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Cycling patellofemoral pain

Michael Worlicek, Benedikt Moser, Günther Maderbacher, Raphael Zentner, Florian Zeman, Joachim Grifka, Armin Keshmiri
BACKGROUND: Patellofemoral instability may lead to osteoarthritis, anterior knee pain, and patellar luxation. The purpose of this study was to conduct an exploratory investigation into the difference of patellar kinematics of healthy knees during extension/flexion cycles in neutral, varus and valgus alignment. METHODS: The three-dimensional patellar kinematics of 10 lower extremities of whole body cadavers were examined during passive motion, in neutral position, and under valgus and varus stress...
May 19, 2017: Knee
P E J Ummels, A F Lenssen, M Barendrecht, A J H M Beurskens
OBJECTIVE: There are no Dutch language disease-specific questionnaires for patients with patellofemoral pain syndrome available that could help Dutch physiotherapists to assess and monitor these symptoms and functional limitations. The aim of this study was to translate the original disease-specific Kujala Patellofemoral Score into Dutch and evaluate its reliability. METHODS: The questionnaire was translated from English into Dutch in accordance with internationally recommended guidelines...
January 2017: Physiotherapy Research International: the Journal for Researchers and Clinicians in Physical Therapy
S Lenschow, M Herbort, C Fink
OBJECTIVE: Stabilization of the patella by medial patellofemoral ligament (MPFL) reconstruction. INDICATIONS: Recurrent lateral patella instability with chronic weakening of the MPFL. CONTRAINDICATIONS: Femoropatellar cartilage defects ICRS grade 3° or higher. Tuberositas Tibiae Trochlear Groove Index (TTTG) >20 mm. Lateral hypercompression of the patella without instability. SURGICAL TECHNIQUE: A 3 cm transverse skin incision at the superomedial edge of the patella in 90° of flexion...
December 2015: Operative Orthopädie und Traumatologie
Nuno Oliveira, David H Saunders, Ross H Sanders
PURPOSE: To investigate the effects of fatigue on the vertical force and kinematics of the lower limbs during maximal water polo eggbeater kicking. METHODS: Twelve male water polo players maintained as high a position as possible while performing the eggbeater kick with the upper limbs raised out of the water until they were unable to keep the top of the sternum (manubrium) above water. Data comprising 27 complete eggbeater-kick cycles were extracted corresponding to 9 cycles of the initial nonfatigued (0%), 50% time point (50%), and final fatigued (100%) periods of the trial...
January 2016: International Journal of Sports Physiology and Performance
Rianne A van der Heijden, Nienke E Lankhorst, Robbart van Linschoten, Sita M A Bierma-Zeinstra, Marienke van Middelkoop
BACKGROUND: Patellofemoral pain syndrome (PFPS) is a common knee problem, which particularly affects adolescents and young adults. PFPS, which is characterised by retropatellar (behind the kneecap) or peripatellar (around the kneecap) pain, is often referred to as anterior knee pain. The pain mostly occurs when load is put on the knee extensor mechanism when climbing stairs, squatting, running, cycling or sitting with flexed knees. Exercise therapy is often prescribed for this condition...
January 20, 2015: Cochrane Database of Systematic Reviews
Gregory D Myer, Kevin R Ford, Stephanie L Di Stasi, Kim D Barber Foss, Lyle J Micheli, Timothy E Hewett
BACKGROUND: Identifying risk factors for knee pain and anterior cruciate ligament (ACL) injury can be an important step in the injury prevention cycle. OBJECTIVE: We evaluated two unique prospective cohorts with similar populations and methodologies to compare the incidence rates and risk factors associated with patellofemoral pain (PFP) and ACL injury. METHODS: The 'PFP cohort' consisted of 240 middle and high school female athletes. They were evaluated by a physician and underwent anthropometric assessment, strength testing and three-dimensional landing biomechanical analyses prior to their basketball season...
January 2015: British Journal of Sports Medicine
Brad Pendleton Dieter, Craig P McGowan, Sharon K Stoll, Chantal A Vella
INTRODUCTION: Patellofemoral pain syndrome (PFPS) is pervasive and debilitating in the sport of cycling. Currently, little is known about the underlying mechanism causing patellofemoral pain in cyclists. PURPOSE: The purpose of this study was to determine whether temporal differences in the muscle activity of the vastus medialis (VM), vastus lateralis (VL), semitendinosus (ST), and biceps femoris (BF) were correlated to patellofemoral pain in cycling. METHODS: Ten healthy cyclists (six women and four men, height = 1...
April 2014: Medicine and Science in Sports and Exercise
Rachel L Lenhart, Darryl G Thelen, Christa M Wille, Elizabeth S Chumanov, Bryan C Heiderscheit
PURPOSE: Increasing step rate has been shown to elicit changes in joint kinematics and kinetics during running, and it has been suggested as a possible rehabilitation strategy for runners with patellofemoral pain. The purpose of this study was to determine how altering step rate affects internal muscle forces and patellofemoral joint loads, and then to determine what kinematic and kinetic factors best predict changes in joint loading. METHODS: We recorded whole body kinematics of 30 healthy adults running on an instrumented treadmill at three step rate conditions (90%, 100%, and 110% of preferred step rate)...
March 2014: Medicine and Science in Sports and Exercise
Jason Bonacci, Bill Vicenzino, Wayne Spratford, Paul Collins
AIM: Elevated patellofemoral joint stress is thought to contribute to the development and progression of patellofemoral pain syndrome. The purpose of this study was to determine if running barefoot decreases patellofemoral joint stress in comparison to shod running. METHODS: Lower extremity kinematics and ground reaction force data were collected from 22 trained runners during overground running while barefoot and in a neutral running shoe. The kinematic and kinetic data were used as input variables into a previously described mathematical model to determine patellofemoral joint stress...
March 2014: British Journal of Sports Medicine
Benjamin R Freedman, Frances T Sheehan
Patellofemoral pain syndrome causes significant discomfort and disability among much of the general population. Despite recent breakthroughs in dynamic three-dimensional imaging technologies to assess pathological patellofemoral motion, such tools remain costly for clinical diagnostics applications. Thus, this study investigated whether three-dimensional patellofemoral kinematics could be predicted from routine two-dimensional static measures of patellofemoral joint alignment quantified from magnetic resonance imaging (MRI) data acquired in full knee extension...
March 2013: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Kai-Yu Ho, Mark G Blanchette, Christopher M Powers
Although wearing high-heeled shoes has long been considered a risk factor for the development for patellofemoral pain (PFP) in women, patellofemoral joint kinetics during high-heeled gait has not been examined. The purpose of this study was to determine if heel height increases patellofemoral joint loading during walking. Eleven healthy women (mean age 25.0±3.1 yrs) participated. Lower extremity kinematics and kinetics were obtained under 3 different shoe conditions: low heel (1.27 cm), medium heel (6.35 cm), and high heel (9...
June 2012: Gait & Posture
Daniel Harvie, Timothy O'Leary, Saravana Kumar
PURPOSE: There is research evidence which supports the effectiveness of exercise in reducing pain and increasing function in patients with patellofemoral pain syndrome. However, what is unclear are the parameters underpinning this intervention. This has led to uncertainty when operationalizing exercises for patients with patellofemoral pain syndrome in clinical practice. The aim of this review was to evaluate the parameters of exercise programs reported in primary research, to provide clinicians with evidence-based recommendations for exercise prescription for patellofemoral pain...
2011: Journal of Multidisciplinary Healthcare
Rodrigo Bini, Patria A Hume, James L Croft
Incorrect bicycle configuration may predispose athletes to injury and reduce their cycling performance. There is disagreement within scientific and coaching communities regarding optimal configuration of bicycles for athletes. This review summarizes literature on methods for determining bicycle saddle height and the effects of bicycle saddle height on measures of cycling performance and lower limb injury risk. Peer-reviewed journals, books, theses and conference proceedings published since 1960 were searched using MEDLINE, Scopus, ISI Web of Knowledge, EBSCO and Google Scholar databases, resulting in 62 references being reviewed...
June 1, 2011: Sports Medicine
Justin W Fernandez, Massoud Akbarshahi, Kay M Crossley, Kevin B Shelburne, Marcus G Pandy
Patellar tendon adhesion is a complication from anterior cruciate ligament (ACL) reconstruction that may affect patellofemoral and tibiofemoral biomechanics. A computational model was used to investigate the changes in knee joint mechanics due to patellar tendon adhesion under normal physiological loading during gait. The calculations showed that patellar tendon adhesion up to the level of the anterior tibial plateau led to patellar infera, increased patellar flexion, and increased anterior tibial translation...
August 2011: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Christian J Barton, Pazit Levinger, Kate E Webster, Hylton B Menz
Patellofemoral pain syndrome (PFPS) development is considered to be multifactorial with various knee, hip and foot/ankle kinematic factors thought to be involved. A paucity of research evaluating kinematic factors throughout the lower limb kinematic chain simultaneously in individuals with PFPS was identified in a recent systematic review. The objective of this study was to compare kinematics at the knee, hip and foot/ankle in a group of individuals with PFPS to a group of asymptomatic controls. Twenty-six individuals with PFPS and 20 controls aged between 18 and 35 were recruited...
February 2011: Gait & Posture
Michael J Tuite
Injuries in triathletes are common and are mostly overuse injuries. Rotator cuff tendinitis is the most common complaint from swimming, but the incidence of tendinopathy and rotator cuff tears on magnetic resonance imaging is comparable in triathletes without and with shoulder pain. Cycling injuries are mainly to the knee, including patellar tendinosis, iliotibial band syndrome, and patellofemoral stress syndrome, and to the Achilles tendon and the cervical and lumbar spine. Running is associated with most injuries in triathletes, during both training and racing, causing the athlete to discontinue the triathlon...
November 2010: Radiologic Clinics of North America
Lawrence Hart
OBJECTIVE: To compare the effectiveness of supervised exercise therapy with usual care on self-reported recovery, pain, and function in persons with patellofemoral pain syndrome. DESIGN: Randomized, controlled, unblinded, multicenter trial of 3 month's duration. Sample size was calculated with 80% power to show a minimum clinically important difference of 22% in recovery after 1 year, at P <or= 0.05. Patients were stratified for type of physician and age (14-17y or >or=18y)...
March 2010: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
Ioannis G Goudakos, Christian König, Philip B Schöttle, William R Taylor, Navrag B Singh, Ian Roberts, Florian Streitparth, Georg N Duda, Markus O Heller
The mechanical environment during stair climbing has been associated with patellofemoral pain, but the contribution of loading to this condition is not clearly understood. It was hypothesized that the loading conditions during stair climbing induce higher patellofemoral pressures, a more lateral force distribution on the trochlea and a more lateral shift and tilt of the patella compared to walking at early knee flexion. Optical markers for kinematic measurements were attached to eight cadaveric knees, which were loaded with muscle forces at instances of walking and stair climbing cycles at 12 degrees and 30 degrees knee flexion...
November 13, 2009: Journal of Biomechanics
R T H Cheung, G Y F Ng
OBJECTIVE: Delay onset of the vastus medialis obliquus (VMO) has often been reported to happen in people with patellofemoral pain (PFP). Previous studies revealed that a motion control shoe could check rearfoot pronation in overpronators. Literature suggested that movements of the lower leg could affect patellar tracking; thus motion control shoe may help prevent PFP by controlling excessive foot movements. This study aimed to compare the vasti muscle activities in people with excessive foot pronation when running with different footwear...
December 2009: British Journal of Sports Medicine
David D Cosca, Franco Navazio
Endurance athletes alternate periods of intensive physical training with periods of rest and recovery to improve performance. An imbalance caused by overly intensive training and inadequate recovery leads to a breakdown in tissue reparative mechanisms and eventually to overuse injuries. Tendon overuse injury is degenerative rather than inflammatory. Tendinopathy is often slow to resolve and responds inconsistently to anti-inflammatory agents. Common overuse injuries in runners and other endurance athletes include patellofemoral pain syndrome, iliotibial band friction syndrome, medial tibial stress syndrome, Achilles tendinopathy, plantar fasciitis, and lower extremity stress fractures...
July 15, 2007: American Family Physician
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