The Effects of Footwear on the Economy of Movement

2015 ◽  
Author(s):  
Edward C. Frederick
Keyword(s):  
Economy Of Movement

Deborah Hay's O, O

2007 ◽  
Vol 51 (2) ◽  
pp. 157-170 ◽  
Author(s):  
Danielle Goldman
Keyword(s):  
Economy Of Movement

This second installment of TDR's continuing series on choreography and philosophy addresses dance and temporality. Paula Caspão describes the economy of movement and language as a stuttering, relational, affective field. Frédéric Pouillaude argues that contemporaneity links dance and scène, which in French means both an abstract place for an event and, more concretely, the stage. In a dialogue, Danielle Goldman and Deborah Hay follow up on Goldman's considerations of how improvisation offers “escape routes”—for and from dance, theory, and time.

scholarly journals Mechanical properties, physiological behavior, and function of aponeurosis and tendon

2019 ◽  
Vol 126 (6) ◽  
pp. 1800-1807 ◽  
Author(s):  
Jens Bojsen-Møller ◽  
S. Peter Magnusson
Keyword(s):  
Human Movement ◽  
Point Of View ◽  
Three Dimensions ◽  
Force Transmission ◽  
Risk Of Injury ◽  
Injury Mechanisms ◽  
Human Function ◽  
And Function ◽  
Economy Of Movement

During human movement, the muscle and tendinous structures interact as a mechanical system in which forces are generated and transmitted to the bone and energy is stored and released to optimize function and economy of movement and/or to reduce risk of injury. The present review addresses certain aspects of how the anatomical design and mechanical and material properties of the force-transmitting tissues contribute to the function of the muscle-tendon unit and thus overall human function. The force-bearing tissues are examined from a structural macroscopic point of view down to the nanoscale level of the collagen fibril. In recent years, the understanding of in vivo mechanical function of the force-bearing tissues has increased, and it has become clear that these tissues adapt to loading and unloading and furthermore that force transmission mechanics is more complex than previously thought. Future investigations of the force-transmitting tissues in three dimensions will enable a greater understanding of the complex functional interplay between muscle and tendon, with relevance for performance, injury mechanisms, and rehabilitation strategies.

scholarly journals Treinamento de Força para Atletas de Elite em Provas de Endurance/Resistance Training for Elite Athletes in Endurance Events

1970 ◽  
Vol 2 (1) ◽  
pp. 74-80
Author(s):  
Charles Ricardo Lopes ◽  
Márcio Antônio Gonçalves Sindorf ◽  
Gustavo Ribeiro da Mota ◽  
Marcelo de Castro Cesar
Keyword(s):  
Resistance Training ◽  
Oxygen Uptake ◽  
Paradigm Shift ◽  
Elite Athletes ◽  
Endurance Performance ◽  
The Other ◽  
Power Training ◽  
Distance Runners ◽  
Training Performance ◽  
Economy Of Movement

O objetivo deste estudo foi revisar trabalhos que investigaram os efeitos do treinamento de força (TF) para o desempenho de endurance. Os principais fatores fisiológicos determinantes das provas de endurance (PE) são o consumo máximo de oxigênio (VO2max), o limiar anaeróbio (LAn) e a economia de movimento (EM). Ambos VO2max e LAn são bem estimulados com meios e métodos tradicionais de treinamento e essas duas variáveis parecem ser pouco sensíveis ao TF em pessoas treinadas. Por outro lado, a EM pode ser aperfeiçoada com o TF, mesmo em indivíduos bem treinados em endurance. Portanto, concluímos que o TF colabora para a melhora na endurance, por meio do incremento da EM, e esses resultados sugerem mudança de paradigma na periodização do treinamento de PE. Palavras chave: fundistas; treinamento de potência; exercícios com pesos; performance.  The aim of this study was to review studies that analyzed the effects of resistance training (RT) on endurance performance. The main physiological determinants of endurance events is the maximal oxygen uptake (VO2max), anaerobic threshold (AT) and economy of movement (EM). Both, VO2max and AT, are very encouraged with the means and traditional methods of training and these two variables appear to be few sensitive to people already trained in RT. On the other hand, EM can be improved with the RT even in endurance-trained individuals. Therefore, we conclude that RT contributes to the improvement in endurance, through the increase in EM, and these results suggest a paradigm shift in periodization training of endurance events. Key words: distance runners; power training; resistance training; performance.

Abstract WP317: High Metabolic Cost of Mobility and Balance Activities in Individuals Post-Stroke

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Michal Kafri ◽  
Mary Jane Myslinski ◽  
Venkata Gade ◽  
Judith E Deutsch
Keyword(s):  
Gait Speed ◽  
Walking Speed ◽  
Motor Impairment ◽  
Metabolic Cost ◽  
Upper Extremities ◽  
Healthy Individuals ◽  
Post Stroke ◽  
Rehabilitation Programs ◽  
The Mean ◽  
Economy Of Movement

Purpose: Metabolic cost of walking at a comfortable speed for individuals post-stroke is higher than for healthy individuals. However, metabolic cost of other activities, relevant for community activity, such as transfer from sitting to standing and walking over obstacles, has not been reported. Hence, the aim of this study was to measure metabolic cost of mobility and balance activities for individuals post-stroke, and to assess the hypothesis that it will be higher than for healthy individuals. Methods: Eleven post-stroke (7 men, age 49.5±12.2), and 8 healthy (3 men, age 46.8±6.7) individuals of comparable height and weight participated in the study. Gait speed was measured and motor impairment was evaluated using the Fugl-Meyer test. Four activities were tested for their metabolic cost; walking at a comfortable speed, walking over an obstacle course, sit to walk and standing on balance foam while reaching forward. Each activity was performed repeatedly for 8 minutes, while metabolic measures were recorded. In addition, distance covered, or number of repetitions completed, during the activity were recorded. Metabolic cost of each activity was calculated by dividing the mean oxygen consumption of the last four minutes of the activity by the number of repetitions or walking speed. Results: The Fugl-Meyer scores for post-stroke individuals for lower and upper extremities were 23.6±6.5 and 43.6±19.3 respectively. Comfortable gait speed was 0.8±0.3 m/sec. for post-stroke and 1.4±0.1 m/sec. for healthy individuals. Groups were not significantly different in weight and height. Metabolic cost and between-group comparisons are shown in the table. Conclusion: The metabolic cost of the activities was significantly higher for individuals post stroke than for healthy, suggesting that rehabilitation programs should aim to improve economy of movement.

Pediatric exercise physiology symposium: a tribute to Oded Bar-Or

2008 ◽  
Vol 33 (2) ◽  
pp. 391-392
Author(s):  
Panagiota Nota Klentrou
Keyword(s):  
Physical Activity ◽  
Cystic Fibrosis ◽  
Annual Meeting ◽  
Exercise Physiology ◽  
Anaerobic Capacity ◽  
Neuromuscular Diseases ◽  
Aerobic And Anaerobic ◽  
Children’S Physical Activity ◽  
Economy Of Movement

Dr. Oded Bar-Or was a pioneer in the study of children’s physical activity, exercise, and health. His diverse research interests led to numerous scientific explorations on thermoregulation, aerobic and anaerobic capacity, physical activity, economy of movement, obesity, neuromuscular diseases, asthma, cystic fibrosis (CF), and many more. To commemorate the extraordinary contributions that Dr. Bar-Or made to the study of exercise and youth, a symposium on pediatric exercise physiology was held at the CSEP’s 2006 Annual Meeting in Halifax. The papers in the following pages include the four papers presented by international colleagues in his memory.

Choreography as Apparatus of Capture

2007 ◽  
Vol 51 (2) ◽  
pp. 119-123 ◽  
Author(s):  
André Lepecki
Keyword(s):  
Economy Of Movement

This second installment of TDR's continuing series on choreography and philosophy addresses dance and temporality. Paula Caspão describes the economy of movement and language as a stuttering, relational, affective field. Frédéric Pouillaude argues that contemporaneity links dance and scène, which in French means both an abstract place for an event and, more concretely, the stage. In a dialogue, Danielle Goldman and Deborah Hay follow up on Goldman's considerations of how improvisation offers “escape routes”—for and from dance, theory, and time.

Validating the Use of Smartphone-Based Accelerometers for Performance Assessment in a Simulated Neurosurgical Task

2013 ◽  
Vol 10 (1) ◽  
pp. 57-65 ◽  
Author(s):  
Wei Jie Jensen Ang ◽  
Michael Edward Hopkins ◽  
Roland Partridge ◽  
Iain Hennessey ◽  
Paul Martin Brennan ◽  
...  
Keyword(s):  
Simulation Training ◽  
Surgical Simulation ◽  
Working Hours ◽  
Junior Doctors ◽  
Dominant Hand ◽  
Technical Performance ◽  
Dural Closure ◽  
Objective Feedback ◽  
Technical Proficiency ◽  
Economy Of Movement

Abstract BACKGROUND: Reductions in working hours affect training opportunities for surgeons. Surgical simulation is increasingly proposed to help bridge the resultant training gap. For simulation training to translate effectively into the operating theater, acquisition of technical proficiency must be objectively assessed. Evaluating “economy of movement” is one way to achieve this. OBJECTIVE: We sought to validate a practical and economical method of assessing economy of movement during a simulated task. We hypothesized that accelerometers, found in smartphones, provide quantitative, objective feedback when attached to a neurosurgeon's wrists. METHODS: Subjects (n = 25) included consultants, senior registrars, junior registrars, junior doctors, and medical students. Total resultant acceleration (TRA), average resultant acceleration, and movements with acceleration >0.6g (suprathreshold acceleration events) were recorded while subjects performed a simulated dural closure task. RESULTS: Students recorded an average TRA 97.0 ± 31.2 ms−2 higher than senior registrars (P = .03) and 103 ± 31.2 ms−2 higher than consultants (P = .02). Similarly, junior doctors accrued an average TRA 181 ± 31.2 ms−2 higher than senior registrars (P < .001) and 187 ± 31.2 ms−2 higher than consultants (P < .001). Significant correlations were observed between surgical outcome (as measured by quality of dural closure) and both TRA (r = .44, P < .001) and number of suprathreshold acceleration events (r = .33, P < .001). TRA (219 ± 66.6 ms−2; P = .01) and number of suprathreshold acceleration events (127 ± 42.5; P = .02) dropped between the first and fourth trials for junior doctors, suggesting procedural learning. TRA was 45.4 ± 17.1 ms−2 higher in the dominant hand for students (P = .04) and 57.2 ± 17.1 ms−2 for junior doctors (P = .005), contrasting with even TRA distribution between hands (acquired ambidexterity) in senior groups. CONCLUSION: Data from smartphone-based accelerometers show construct validity as an adjunct for assessing technical performance during simulation training.

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