The Jargon of Pedal Movements

Greiner, Thomas M.

doi:10.3113/fai.2007.0020

Cited by 11 publications

(5 citation statements)

References 8 publications

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“…Figure 1 shows the three clearest movement patterns that were identified. In response to the inversion-eversion driving action the cuboid rotates as much as 25° about an oblique axis – a movement best described as obvolution-involution [ 4 ]. The same driving action also produces up to 2 mm of posterior-anterior translation – an actual distraction of the synovial joint.…”

Section: Resultsmentioning

confidence: 99%

“…The same driving action also produces up to 2 mm of posterior-anterior translation – an actual distraction of the synovial joint. The medial-lateral driving action produced a 6° rotational response about a differently oriented oblique axis, in a movement best described as obversion-reversion [ 4 ]. No distinctive movements were produced as a response to the plantarflexion-dorsiflexion driving action.…”

Section: Resultsmentioning

confidence: 99%

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The calcaneocuboid joint moves with three degrees of freedom

Greiner

Ball

2008

Journal of Foot and Ankle Research

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

The calcaneocuboid joint moves with three degrees of freedom

Greiner

Ball

2008

Journal of Foot and Ankle Research

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“…To further evaluate the strength during the movement, we additionally extracted the torque produced across the range of motion (ROM) in steps of 5° starting from 20° of supination until 10° of pronation, since this active ROM was achieved by all participants. According to the most widely used definitions in the literature, for the purpose of this study, the most appropriate definitions of the movement around the ankle joint were supination and pronation even though internal and external rotation as well as eversion and inversion were naturally part of the motion [ 38 , 39 ].…”

Section: Methodsmentioning

confidence: 99%

Functional deficits in chronic mechanical ankle instability

Gehring

Mauch³

et al. 2020

J Orthop Surg Res

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Background: The interaction of functional and mechanical deficits in chronic ankle instability remains a major issue in current research. After an index sprain, some patients develop sufficient coping strategies, while others require mechanical support. This study aimed to analyze persisting functional deficits in mechanically unstable ankles requiring operative stabilization. Methods: We retrospectively analyzed the functional testing of 43 patients suffering from chronic, unilateral mechanical ankle instability (MAI) and in which long-term conservative treatment had failed. Manual testing and arthroscopy confirmed mechanical instability. The functional testing included balance test, gait analysis, and concentric-concentric, isokinetic strength measurements and was compared between the non-affected and the MAI ankles. Results: Plantarflexion, supination, and pronation strength was significantly reduced in MAI ankles. A sub-analysis of the strength measurement revealed that in non-MAI ankles, the peak pronation torque was reached earlier during pronation (maximum peak torque angle at 20°vs. 14°of supination, p < 0.001). Furthermore, active range of motion was reduced in dorsiflexion and supination. In balance testing, patients exhibited a significant increased perimeter for the injured ankle (p < 0.02). During gait analysis, we observed an increased external rotation in MAI (8.7 vs. 6.8°, p<0.02). Conclusions: This study assesses functional deficits existent in a well-defined population of patients suffering from chronic MAI. Impairments of postural sway, gait asymmetries, and asymmetric isokinetic strength can be observed despite long-term functional treatment. The finding that pronation strength is particularly reduced with the foot in a close-to-accident position indicates potential muscular dysfunction in MAI. Possibly, these deficits alongside the underlying mechanical instability characterize patients requiring mechanical stabilization.

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“…Infelizmente existe uma grande confusão no uso dos termos utilizados para reportar os movimentos da região do tornozelo 7 . Por esse motivo, descreveremos as definições mais aceitáveis para reportar os movimentos dessas articulações e utilizaremos essas definições no presente estudo.…”

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“…Flexão plantar/Dorsiflexão: movimento da articulação talocrural sobre um eixo quasi-médio-lateral (orientado aproximadamente a 84° medialmente ao eixo longo do pé). Uma descrição mais completa dos movimentos do pé e tornozelo pode ser encontrada em Greiner 7 e Czerniecki 8 .…”

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Análise cinemática comparativa da fase de apoio da corrida em adultos e idosos

Fukuchi

Duarte

2008

Fisioter. Pesqui.

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com a qualidade de vida tem levado ao aumento do interesse por atividades físicas pelos idosos. A corrida de rua é uma das atividades que obteve maior número de adeptos dessa faixa etária. Os movimentos excessivos da região do tornozelo têm sido associados às lesões musculoesqueléticas em corredores. Os achados da literatura sugerem que idosos são mais susceptíveis às lesões relacionadas à corrida do que adultos. Contudo, ainda é desconhecido se as alterações teciduais trazidas pelo envelhecimento realmente contribuem para esses resultados. O objetivo do presente estudo foi comparar a cinemática da fase de apoio da corrida em adultos e idosos. Foram analisados 17 adultos (31±5 anos) e 17 idosos (69±2 anos) recrutados voluntariamente. Os sujeitos correram em uma esteira ergométrica a 11 km/h, enquanto eram filmados por quatro câmeras de vídeo com freqüência de 120 Hz. Os ângulos do retropé e do joelho durante a fase de apoio da corrida foram mensurados. Os idosos apresentaram menor excursão de movimentos de flexão do joelho e de rotação medial da tíbia. Aparentemente os idosos apresentaram maior assincronia entre os movimentos do retropé e do joelho em relação aos adultos. Esses resultados sugerem que os idosos adotam padrões de movimentos diferentes dos adultos durante a fase de apoio da corrida. A prescrição de exercícios e as estratégias de prevenção de lesões em idosos corredores devem considerar essas diferenças. DESCRITORES: Biomecânica; Corrida; Envelhecimento ABSTRACT: In elderly people, concern with quality of life has led to increased interest on physical activities, among which running or jogging in the streets is the favourite. In runners, excessive ankle movements have been linked to musculoskeletal injuries. Literature has suggested elderly runners are more susceptible to running-related injuries than adults, but it is still unknown whether aging-related tissue degeneration might be associated to this. This study aimed at comparing the stance phase kinematics of running in adults and elderly runners. Seventeen adults (31±5 years old) and 17 elderly runners (69±2 years old) ran on a treadmill at 11 km/h while they were filmed by four digital cameras at 120 Hz. Rearfoot and knee joint movements were measured during the stance phase of running. The elderly runners showed lower knee flexion and lower tibial internal rotation excursion. Elderly runners apparently presented greater asynchrony between rearfoot and knee joint movement than adults. These findings suggest that during running stance elderly runners adopt different movement patterns when compared to adults. Prescription of physical activities for the elderly and prevention strategies in elderly runners should consider these findings.

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The Jargon of Pedal Movements

Abstract: The lack of unambiguous descriptions in the research literature may mean that clinicians are not always applying treatment options in an appropriate manner. Greater clarity of meaning is required for both basic research and clinical applications.

Cited by 11 publications

References 8 publications

The calcaneocuboid joint moves with three degrees of freedom

The calcaneocuboid joint moves with three degrees of freedom

Functional deficits in chronic mechanical ankle instability

Análise cinemática comparativa da fase de apoio da corrida em adultos e idosos

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