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Christian A. Clermont, Sean T. Osis, Angkoon Phinyomark and Reed Ferber

at 2.7 m/s while wearing standard shoes (Air Pegasus; Nike, Beaverton, OR). Data Processing Kinematic joint angles were calculated using 3D GAIT custom software (Running Injury Clinic Inc., Calgary, Alberta, Canada) and normalized to 100 data points for an entire gait cycle (stance and swing phases

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Katie A. Conway and Jason R. Franz

maximum speed walking (Fast) compared with reference data in young adults while walking at preferred speed (Young) plotted against an average gait cycle, from heel strike to heel strike. (b) Group average ( SD ) peak anterior GRF during each condition. *Local maxima with significant differences from Pref

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Robert D. Catena, Nigel Campbell, Alexa L. Werner and Kendall M. Iverson

Individual gait cycles were identified at right heel strikes by a built-in gait event detector in Biosuite software (Motion Analysis Corp) and confirmed by the lead author. The minimum number of gait cycles by any 1 individual at any testing was 36 gait cycles; therefore, we analyzed only the first 36 gait

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Mary Emily Littrell, Young-Hui Chang and Brian P. Selgrade

percentage differences between observed (low-cost system) and accepted data (gold standard; Equations  1 and 2 ). Absolute error = Observed−Accepted (1) Percentage error = [ ( Observed−Accepted ) = Accepted ] × 100 (2) We compared Vicon and Kinovea segment angle measurements at every 25% of the gait cycle

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Gustavo Ramos Dalla Bernardina, Tony Monnet, Heber Teixeira Pinto, Ricardo Machado Leite de Barros, Pietro Cerveri and Amanda Piaia Silvatti

reported in terms of mean and SD. To evaluate the kinematic data agreement 1 subject (female, 32 y old, 1.7-m tall, and 58.5 kg) performed 3 walking trials and 1 countermovement jump trial. Each walk task included 1 gait cycle for the right and 1 gait cycle for the left limb, performed to a self

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Rob van der Straaten, Oren Tirosh, William A. (Tony) Sparrow and Rezaul Begg

tripping is the gait cycle event minimum toe clearance (MTC; Figure  1 ). In normal gait, following toe off, the swing foot exhibits an initial maximum vertical displacement (Mx1), after which, approximately halfway through the swing phase, the lowest clearance point subsequent to Mx1 is seen—MTC. At

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Anne-Marie Heugas and Isabelle A. Siegler

peak picking algorithm. Maximum (peaks) and minimal (valleys) values were determined for each gait cycle. Joint amplitude was then defined as the difference between each peak and valley within a cycle. The coefficients of variation of joint amplitudes ( SD /mean) were computed for the last 30 gait

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Lauren C. Benson, Stephen C. Cobb, Allison S. Hyngstrom, Kevin G. Keenan, Jake Luo and Kristian M. O’Connor

strides with and without a local minimum. In addition, all of these methods, including the local minimum approach, only consider a single point, which may not convey important information about foot clearance from the rest of the gait cycle. 15 , 16 Therefore, a method that accurately determines foot

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Lydia M. Kocher, Jonisha P. Pollard, Ashley E. Whitson and Mahiyar F. Nasarwanji

Institutional Review Board. A total of 12 participants were recruited; however, one participant did not complete the study, and an additional participant’s data were not included in the final analysis of the study. The excluded participant did not complete 1 full gait cycle in each trial. Overall, the study

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Katie A. Conway, Randall G. Bissette and Jason R. Franz

all conditions, we derived 10-Hz low-pass linear envelopes for each muscle from which we extracted mean values between 30% and 60% of the gait cycle (ie, the second half of stance). 26 We defined subjects’ maximum isometric ankle moment from the dynamometry data as the peak generated during the