Three-Dimensional Kinematics and Power Output in Elite Para-Kayakers and Elite Able-Bodied Flat-Water Kayakers.

abstract：:Recent evidence suggests previously concussed athletes are at greater risk for lower-extremity (LE) injuries than are controls. However, little is known regarding the influence of sports-related concussion (SRC) on landing biomechanics that may provide a mechanistic rationale for LE injury risk. The purpose of this in...

journal_title：Journal of applied biomechanics

authors： Avedesian JM,Covassin T,Dufek JS

更新日期：2020-07-31 00:00:00

abstract：:Investigations of joint loading in knee osteoarthritis (OA) typically normalize the knee adduction moment to global measures of body size (eg, body mass, height) to allow comparison between individuals. However, such measurements may not reflect knee size. This study used a morphometric measurement of the cartilage su...

journal_title：Journal of applied biomechanics

authors： Brisson NM,Stratford PW,Totterman S,Tamez-Peña JG,Beattie KA,Adachi JD,Maly MR

更新日期：2015-12-01 00:00:00

abstract：:This preliminary study aimed to quantify the magnitude of the peak shoulder distraction force during the bowling action of female cricket fast bowlers. An eight camera Vicon motion analysis system operating at 120 Hz recorded the fast bowling actions of 18 Australian female fast bowlers. A three segment inverse soluti...

journal_title：Journal of applied biomechanics

authors： Stuelcken MC,Ferdinands RE,Ginn KA,Sinclair PJ

更新日期：2010-08-01 00:00:00

abstract：:Volleyball players are at high risk of overuse shoulder injuries, with spike biomechanics a perceived risk factor. This study compared spike kinematics between elite male volleyball players with and without a history of shoulder injuries. Height, mass, maximum jump height, passive shoulder rotation range of motion (RO...

journal_title：Journal of applied biomechanics

authors： Mitchinson L,Campbell A,Oldmeadow D,Gibson W,Hopper D

更新日期：2013-04-01 00:00:00

abstract：:This study aimed to determine whether subject-specific individual muscle models for the ankle plantar flexors could be obtained from single joint isometric and isovelocity maximum torque measurements in combination with a model of plantar flexion. Maximum plantar flexion torque measurements were taken on one subject a...

journal_title：Journal of applied biomechanics

authors： Conceição F,King MA,Yeadon MR,Lewis MG,Forrester SE

更新日期：2012-12-01 00:00:00

abstract：:The purposes of this study were to compare selected biomechanical variables before and after a long run, and to assess the relationship between weekly running volume and changes in lower limb biomechanics after the run. Twelve trained habitual rearfoot strike male runners ran overground before and after a treadmill lo...

journal_title：Journal of applied biomechanics

authors： Paquette MR,Melcher DA

更新日期：2017-07-01 00:00:00

abstract：:Authors who report ground reaction force (GRF), free moment (FM), and resultant joint moments usually normalize these variables by division normalization. Normalization parameters include body weight (BW), body weight x height (BWH), and body weight x leg length (BWL). The purpose of this study was to explore the appr...

journal_title：Journal of applied biomechanics

authors： Wannop JW,Worobets JT,Stefanyshyn DJ

更新日期：2012-12-01 00:00:00

abstract：:Isometric tasks have been a standard for electromyography (EMG) normalization stemming from anatomic and physiologic stability observed during contraction. Ballistic dynamic tasks have the benefit of eliciting maximum EMG signals for normalization, despite having the potential for greater signal variability. It is the...

journal_title：Journal of applied biomechanics

authors： Suydam SM,Manal K,Buchanan TS

更新日期：2017-07-01 00:00:00

abstract：:This study examined sex differences in head kinematics and neck muscle activity during sudden head perturbations. Sixteen competitive ice hockey players participated. Three muscles were monitored bilaterally using surface electromyography: sternocleidomastoid, scalene, and splenius capitis. Head and thorax kinematics ...

journal_title：Journal of applied biomechanics

authors： Debison-Larabie C,Murphy BA,Holmes MWR

更新日期：2018-11-21 00:00:00

abstract：:The purpose of this study was to determine whether a lateral wedge insole reduces the external knee adduction moment during slope walking. Twenty young, healthy subjects participated in this study. Subjects walked up and down a slope using 2 different insoles: a control flat insole and a 7° lateral wedge insole. A thr...

journal_title：Journal of applied biomechanics

authors： Uto Y,Maeda T,Kiyama R,Kawada M,Tokunaga K,Ohwatashi A,Fukudome K,Ohshige T,Yoshimoto Y,Yone K

更新日期：2015-12-01 00:00:00

abstract：:This study investigated reliability of freehand three-dimensional ultrasound (3DUS) measurement of in vivo human Achilles tendon (AT) moment arm. Sixteen healthy adults were scanned on 2 separate occasions by a single investigator. 3DUS scans were performed over the free AT, medial malleolus, and lateral malleolus wit...

journal_title：Journal of applied biomechanics

authors： Obst SJ,Barber L,Miller A,Barrett RS

更新日期：2017-08-01 00:00:00

abstract：:It has been suggested that noncontact anterior cruciate ligament injury commonly occurs during sports requiring acute deceleration or landing motion and that female athletes are more likely to sustain the injury than male athletes. The purpose of this study was to make task-to-task and male-female comparisons of knee ...

journal_title：Journal of applied biomechanics

authors： Tanikawa H,Matsumoto H,Komiyama I,Kiriyama Y,Toyama Y,Nagura T

更新日期：2013-12-01 00:00:00

abstract：:The measurement of active drag in swimming is a biomechanical challenge. This research compared two systems: (i) measuring active drag (MAD) and (ii) assisted towing method (ATM). Nine intermediate-level swimmers (19.7 ± 4.4 years) completed front crawl trials with both systems during one session. The mean (95% confid...

journal_title：Journal of applied biomechanics

authors： Formosa DP,Toussaint HM,Mason BR,Burkett B

更新日期：2012-12-01 00:00:00

abstract：:The aim of this study was to determine the effects of pole length on energy cost and kinematics in cross country double poling. Seven sub-elite male athletes were tested using pole sets of different lengths (ranging between 77% and 98% of participants' body height). Tests were conducted on a treadmill, set to a 2% inc...

journal_title：Journal of applied biomechanics

authors： Onasch F,Killick A,Herzog W

更新日期：2017-07-01 00:00:00

abstract：:As the modern workplace is dominated by submaximal repetitive tasks, knowledge of the effect of task location is important to ensure workers are unexposed to potentially injurious demands imposed by repetitive work in awkward or sustained postures. The purpose of this investigation was to develop a three-dimensional s...

journal_title：Journal of applied biomechanics

authors： McDonald AC,Brenneman EC,Cudlip AC,Dickerson CR

更新日期：2014-02-01 00:00:00

abstract：:The purpose of this study was to examine how wave-induced platform motion effects postural stability when handling loads. Twelve participants (9 male, 3 female) performed a sagittal lifting/lowering task with a 10 kg load in different sea conditions off the coast of Halifax, Nova Scotia, Canada. Trunk kinematics and f...

journal_title：Journal of applied biomechanics

authors： Duncan CA,Mackinnon SN,Albert WJ

更新日期：2012-05-01 00:00:00

abstract：:Understanding upper limb strength requirements for daily tasks is imperative for early detection of strength loss that may progress to disability due to age or rotator cuff tear. We quantified shoulder strength requirements for 5 upper limb tasks performed by 3 groups: uninjured young adults and older adults, and olde...

journal_title：Journal of applied biomechanics

authors： Santago AC 2nd,Vidt ME,Li X,Tuohy CJ,Poehling GG,Freehill MT,Saul KR

更新日期：2017-12-01 00:00:00

abstract：:The purpose of this study was to investigate how the contraction-induced increase in distal biceps brachii tendon moment arm is related to that in elbow flexor muscle thickness, with a specific emphasis on the influence of the site-related differences in muscle thickness. The moment arm and muscle thickness were deter...

journal_title：Journal of applied biomechanics

authors： Akagi R,Iwanuma S,Hashizume S,Kanehisa H,Yanai T,Kawakami Y

更新日期：2014-02-01 00:00:00

abstract：:Motion of the femur and pelvis during hip flexion has been examined previously, but principally in the sagittal plane and during nonfunctional activities. In this study we examined femoral elevation in the sagittal plane and pelvic rotation in the sagittal and frontal planes while subjects flexed their hips to ascend ...

journal_title：Journal of applied biomechanics

authors： Bohannon RW,Smutnick J

更新日期：2010-08-01 00:00:00

abstract：:The purpose of this study was to evaluate whether agonist muscle fatigue changed the coactivation time and the co-contraction magnitude of the agonist and antagonist muscle, and if the agonist muscle fatigue produced bias (constant error: CE) and inconsistency (variable error: VE) of the force. Subjects are 10 healthy...

journal_title：Journal of applied biomechanics

authors： Huang YM,Chang YJ,Hsu MJ,Chen CL,Fang CY,Wong AM

更新日期：2009-11-01 00:00:00

abstract：:Weak hip muscle strength and excessive hip motion during running have been suggested as potential risk factors for developing patellofemoral pain syndrome (PFPS) in females, but not males. There is conflicting evidence on the relationship between hip strength and hip kinematics, which may be partly due to sex differen...

journal_title：Journal of applied biomechanics

authors： Hannigan JJ,Osternig LR,Chou LS

更新日期：2018-02-01 00:00:00

abstract：:The aim of this study was to examine the dexterity of both lower extremities in patients with stroke. Twenty patients with stroke and 20 age-matched control subjects participated in this study. To determine the dexterity of the lower extremities, we examined the ability to control muscle force during submaximal contra...

journal_title：Journal of applied biomechanics

authors： Kiyama R,Fukudome K,Hiyoshi T,Umemoto A,Yoshimoto Y,Maeda T

更新日期：2011-05-01 00:00:00

abstract：:The purpose of this study was to identify alterations in preparatory muscle activation patterns across different drop heights in female athletes. Sixteen female high school volleyball players performed the drop vertical jump from three different drop heights. Surface electromyography of the quadriceps and hamstrings w...

journal_title：Journal of applied biomechanics

authors： Ford KR,Myer GD,Schmitt LC,Uhl TL,Hewett TE

更新日期：2011-08-01 00:00:00

abstract：:Parkinson's disease (PD) and aging lead to gait impairments. Some of the disturbances of gait are focused on step length, cadence, and temporal variability of gait cycle. Under experimental conditions gait can be overtly evaluated, but patients with PD are prone to expectancy effects; thus it seems relevant to determi...

journal_title：Journal of applied biomechanics

authors： Robles-García V,Corral-Bergantiños Y,Espinosa N,Jácome MA,García-Sancho C,Cudeiro J,Arias P

更新日期：2015-06-01 00:00:00

abstract：:This study aimed to compare head impact exposures between practices and games in football players ages 9 to 14 years, who account for approximately 70% of all football players in the United States. Over a period of 2 seasons, 136 players were enrolled from 3 youth programs, and 49,847 head impacts were recorded from 3...

journal_title：Journal of applied biomechanics

authors： Bellamkonda S,Woodward SJ,Campolettano E,Gellner R,Kelley ME,Jones DA,Genemaras A,Beckwith JG,Greenwald RM,Maerlender AC,Rowson S,Duma SM,Urban JE,Stitzel JD,Crisco JJ

更新日期：2018-10-01 00:00:00

abstract：:In animal models, hundreds of repetitions of upper extremity (UE) task practice promote neural adaptation and functional gain. Recently, we demonstrated improved UE function following a similar intervention for people after stroke. In this secondary analysis, computerized measures of UE task performance were used to i...

journal_title：Journal of applied biomechanics

authors： DeJong SL,Birkenmeier RL,Lang CE

更新日期：2012-07-01 00:00:00

abstract：:The purpose of the present study was to examine the effect of chronic ankle instability (CAI) on lower-extremity joint coordination and stiffness during landing. A total of 21 female participants with CAI and 21 pair-matched healthy controls participated in the study. Lower-extremity joint kinematics were collected us...

journal_title：Journal of applied biomechanics

authors： Li Y,Ko J,Walker MA,Brown CN,Simpson KJ

更新日期：2021-01-15 00:00:00

abstract：:Wrist splints are commonly prescribed to limit wrist motion and provide support at night and during inactive periods but are often used in the workplace. In theory, splinting the wrist should reduce wrist extensor muscle activity by stabilizing the joint and reducing the need for co-contraction to maintain posture. Te...

journal_title：Journal of applied biomechanics

authors： Domizio JD,Mogk JP,Keir PJ

更新日期：2008-08-01 00:00:00

abstract：:The purpose of this study was to explore movement variability of throwing arm and ball release parameters during the water polo shot and to compare variability between successful (hit) and unsuccessful (miss) outcomes. Seven injury free, subelite, females completed 10 trials of the 5 m water polo penalty shot. Intrain...

journal_title：Journal of applied biomechanics

authors： Taylor PG,Landeo R,Coogan J

更新日期：2014-06-01 00:00:00

abstract：:Kinematic studies to date have not considered in what ways surface markers may affect the performance of the analyzed motion. This neglect is particularly apparent in studies of prehensile movements involving surface markers attached to the fingers. In order to specify any such effects, a range of kinematic parameters...

journal_title：Journal of applied biomechanics

authors： Domellöf E,Hopkins B,Francis B,Rönnqvist L

更新日期：2007-11-01 00:00:00