Preferential quadriceps activation in female athletes with incremental increases in landing intensity.

abstract：:Girls' lacrosse participation and head injury rates have increased within the past decade. In response, optional headgear was implemented following the recently developed ASTM International (ASTM) lacrosse headgear performance standards. It remains unknown how lacrosse headgear responds to blunt impacts after use. Our...

journal_title：Journal of applied biomechanics

authors： Kelshaw PM,Gould TE,Jesunathadas M,Cortes N,Caswell A,Edwards ED,Caswell SV

更新日期：2019-08-01 00:00:00

abstract：:This study aimed to investigate the effects of varying midsole hardness on center of pressure (COP) and perceived stability during basketball-specific tasks, as well as the correlation between COP and perception measurements. A total of 20 male basketball players performed 45° cutting and layup while wearing basketbal...

journal_title：Journal of applied biomechanics

authors： Leong HF,Lam WK,Ng WX,Kong PW

更新日期：2018-08-01 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 goal of this pilot study was to characterize the effects of gait training on the capacity of muscles to produce body accelerations and relate these changes to mobility improvements seen in children with cerebral palsy (CP). Five children (14 years ± 3 y; GMFCS I-II) with spastic diplegic CP participated in a 6-wee...

journal_title：Journal of applied biomechanics

authors： Hegarty AK,Kurz MJ,Stuberg W,Silverman AK

更新日期：2016-10-01 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：:We propose that learning proper hitting kinematics should be encouraged at a young age during youth baseball because this may help reinforce proper hitting kinematics as a player progresses to higher levels of baseball in their adult years. To enhance our understanding between youth and adult baseball hitting, kinemat...

journal_title：Journal of applied biomechanics

authors： Escamilla RF,Fleisig GS,DeRenne C,Taylor MK,Moorman CT 3rd,Imamura R,Barakatt E,Andrews JR

更新日期：2009-08-01 00:00:00

abstract：:This study examined lower extremity joint moments during walk and turn with different turn angles and pivot feet. Seven young adults (age 21+/-1.3 yrs) were asked to walk at a self-selected speed (1.35+/-0.15 m/s) and to turn to the right using right (spin turn) and left (step turn) pivot feet at turn angles of 0 degr...

journal_title：Journal of applied biomechanics

authors： Xu D,Chow JW,Wang YT

更新日期：2006-02-01 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：: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：: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：:Our purpose was to characterize shoulder muscle volume and isometric moment, as well as their relationship, for healthy middle- aged adults. Muscle volume and maximum isometric joint moment were assessed for 6 functional muscle groups of the shoulder, elbow, and wrist in 10 middle-aged adults (46–60 y, 5M, 5F). ...

journal_title：Journal of applied biomechanics

authors： Saul KR,Vidt ME,Gold GE,Murray WM

更新日期：2015-12-01 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：:This study aimed to compare the between-session reliability of the load-velocity relationship between (1) linear versus polynomial regression models, (2) concentric-only versus eccentric-concentric bench press variants, as well as (3) the within-participants versus the between-participants variability of the velocity ...

journal_title：Journal of applied biomechanics

authors： Pestaña-Melero FL,Haff GG,Rojas FJ,Pérez-Castilla A,García-Ramos A

更新日期：2018-06-01 00:00:00

abstract：:The purpose of this study was to determine if children exhibit greater variability in center of mass movement and kinetics compared with adults in vertical jumping. Countermovement jumps with arms (CMJA) and without arms (CMJ) performed by 20 female children and 20 female adults were examined using force platform. The...

journal_title：Journal of applied biomechanics

authors： Floria P,Gómez-Landero LA,Harrison AJ

更新日期：2014-12-01 00:00:00

abstract：:The purpose of this study was to explore the immediate effects of running speed and midsole type on foot loading during heel-toe running. Fifteen healthy male college students were required to complete 3 running trials on an indoor 45-m tartan runway at 4 different speeds (3, 4, 5, and 6 m/s) using 2 different running...

journal_title：Journal of applied biomechanics

authors： Peng P,Ding S,Wang Z,Zhang Y,Pan J

更新日期：2020-03-06 00:00:00

abstract：:Cartilage material properties provide important insights into joint health, and cartilage material models are used in whole-joint finite element models. Although the biphasic model representing experimental creep indentation tests is commonly used to characterize cartilage, cartilage short-term response to loading is ...

journal_title：Journal of applied biomechanics

authors： Keenan KE,Pal S,Lindsey DP,Besier TF,Beaupre GS

更新日期：2013-06-01 00:00:00

abstract：:To date, biomechanical analyses of soccer kicking have focused predominantly on lower-extremity motions, with little emphasis on the trunk and upper body. The purpose of this study was to evaluate differences in trunk axial kinematics between novice (n = 10) and skilled (n = 10) participants, as well as to establish t...

journal_title：Journal of applied biomechanics

authors： Fullenkamp AM,Campbell BM,Laurent CM,Lane AP

更新日期：2015-10-01 00:00:00

abstract：:Researchers conduct gait analyses utilizing both overground and treadmill modes of running. Previous studies comparing these modes analyzed discrete variables. Recently, techniques involving quantitative pattern analysis have assessed kinematic curve similarity in gait. Therefore, the purpose of this study was to comp...

journal_title：Journal of applied biomechanics

authors： Fellin RE,Manal K,Davis IS

更新日期：2010-11-01 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：:We tested the ability of healthy elderly persons to use anticipatory synergy adjustments (ASAs) prior to a self-triggered perturbation of one of the fingers during a multifinger force production task. An index of a force-stabilizing synergy was computed reflecting covariation of commands to fingers. The subjects produ...

journal_title：Journal of applied biomechanics

authors： Olafsdottir HB,Kim SW,Zatsiorsky VM,Latash ML

更新日期：2008-05-01 00:00:00

abstract：:Elbow varus torque is a primary factor in the risk of elbow injury during pitching. To examine the effects of shoulder abduction and lateral trunk tilt angles on elbow varus torque, we conducted simulation and regression analyses on 33 college baseball pitchers. Motion data were used for computer simulations in which ...

journal_title：Journal of applied biomechanics

authors： Matsuo T,Fleisig GS

更新日期：2006-05-01 00:00:00

abstract：:In sweep-oar rowers, asymmetrical force production of the legs is a known phenomenon. The purpose of this study was to investigate the muscular activity of the legs that may cause this asymmetry even when oarsmen perform a symmetrical endurance task. Seven male young elite oarsmen performed an all-out 2000-m test on a...

journal_title：Journal of applied biomechanics

authors： Janshen L,Mattes K,Tidow G

更新日期：2009-05-01 00:00:00

abstract：:The purpose of this study was to develop and evaluate an alternative method for determining the position of the anterior superior iliac spine (ASIS) during cycling. The approach used in this study employed an instrumented spatial linkage (ISL) system to determine the position of the ASIS in the parasagittal plane. A t...

journal_title：Journal of applied biomechanics

authors： Martin JC,Elmer SJ,Horscroft RD,Brown NA,Schultz BB

更新日期：2007-08-01 00:00:00

abstract：:Running on a lower-body positive-pressure (LBPP) treadmill allows effects of weight support on leg muscle activation to be assessed systematically, and has the potential to facilitate rehabilitation and prevent overloading. The aim was to study the effect of running with weight support on leg muscle activation and to ...

journal_title：Journal of applied biomechanics

authors： Jensen BR,Hovgaard-Hansen L,Cappelen KL

更新日期：2016-08-01 00:00:00

abstract：:To judge a person's maximum trunk extension performance as either age-appropriate or deconditioned is challenging. The current study aimed at determining age and anthropometrically adjusted maximum voluntary contraction (MVC) of back extensors considering the number and recovery time between trials. Thirty-one younger...

journal_title：Journal of applied biomechanics

authors： Kurz E,Anders C,Walther M,Schenk P,Scholle HC

更新日期：2014-12-01 00:00:00

abstract：:Use of a shank shell has been shown to estimate tibial transverse rotations better than skin-mounted markers. However, the day-to-day reliability of the transverse tibial rotations using an individually molded shank shell has not been previously investigated. This study examined the between-tests and trials reliabilit...

journal_title：Journal of applied biomechanics

authors： Levinger P,Gilleard W,Coleman C

更新日期：2005-05-01 00:00:00

abstract：:Low back pain is a common problem among competitive swimmers, and repeated torso hyperextension is claimed to be an etiological factor. The purpose of this study was to describe the three-dimensional torso configurations in the front crawl stroke and to test the hypothesis that swimmers experience torso hyperextension...

journal_title：Journal of applied biomechanics

authors： Du T,Narita I,Yanai T

更新日期：2016-02-01 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：:Prolonged sitting has been associated with negative health effects. Walking workstations have become increasingly popular in the workplace. There is a lack of research on the biomechanical effect of walking workstations. This study analyzed whether walking while working alters normal gait patterns. A total of 9 partic...

journal_title：Journal of applied biomechanics

authors： Grindle DM,Baker L,Furr M,Puterio T,Knarr B,Higginson J

更新日期：2018-10-01 00:00:00

abstract：:In functional principal component analysis (fPCA) a threshold is chosen to define the number of retained principal components, which corresponds to the amount of preserved information. A variety of thresholds have been used in previous studies and the chosen threshold is often not evaluated. The aim of this study is t...

journal_title：Journal of applied biomechanics

authors： Richter C,McGuinness K,O'Connor NE,Moran K

更新日期：2014-12-01 00:00:00