Effect of a Brazilian Jiu-jitsu-simulated tournament on strength parameters and perceptual responses.

abstract：:This study examined the influence of the TherabandTM CLX gold band on lower-limb muscle activity and kinematics during an overhead barbell squat. Participants performed two sets (band and no-band) of 12 repetitions of overhead barbell squats at 25% bodyweight. Three-dimensional kinematics were measured using motion ca...

journal_title：Sports biomechanics

authors： Forman DA,Forman GN,Button DC,Holmes MWR

更新日期：2018-12-11 00:00:00

abstract：:In this study, we compared sprint kinematics of sled towing and vest sprinting with the same relative loads. Twenty athletes performed 30-m sprints in three different conditions: (a) un-resisted, (b) sled towing, and (c) vest sprinting. During sled towing and vest sprinting, external loads of 15% and 20% of body mass ...

journal_title：Sports biomechanics

authors： Cronin J,Hansen K,Kawamori N,McNair P

更新日期：2008-05-01 00:00:00

abstract：:Inverse Dynamics is routinely used in biomechanics for the estimation of loading in the musculoskeletal system but there are problems with the terms and definitions and even official recommendations introduce artificial and incorrect mechanical constructs to justify arbitrary and inappropriate terms. These terminology...

journal_title：Sports biomechanics

authors： Baltzopoulos V

更新日期：2021-01-12 00:00:00

abstract：:In this study, we aimed to analyse goalball players time-motion variables (distance covered, time spent, maximum and average velocities) in official goalball match attacks, taking into account the attack phases (preparation and throwing), player position (centres and wings) and throwing techniques (frontal, spin and b...

journal_title：Sports biomechanics

authors： Monezi LA,Magalhães TP,Morato MP,Mercadante LA,Furtado OLPDC,Misuta MS

更新日期：2019-10-01 00:00:00

abstract：:The effect of anthropometric differences in shank to thigh length ratio upon timing and magnitude of joint power production during the drive phase of the rowing stroke was investigated in 14 elite male rowers. Rowers were tested on the RowPerfect ergometer which was instrumented at the handle and foot stretcher to mea...

journal_title：Sports biomechanics

authors： Greene AJ,Sinclair PJ,Dickson MH,Colloud F,Smith RM

更新日期：2009-11-01 00:00:00

abstract：:The purpose of the investigation was to study the relationship between thrust phase duration, ground reaction force, velocity increase after pole thrust and pole angles versus pole length during double poling in roller skiing. Seven male regional elite cross-country skiers volunteered as subjects for the study. The su...

journal_title：Sports biomechanics

authors： Nilsson J,Jakobsen V,Tveit P,Eikrehagen O

更新日期：2003-07-01 00:00:00

abstract：:Although deterministic models may provide a useful starting point for sports biomechanists examining the mechanical aspects of athletic performance, they have inherent weaknesses that limit their proctical application. Specifically, their inability to provide substantive information about coordinative movement pattern...

journal_title：Sports biomechanics

authors： Glazier PS,Robins MT

更新日期：2012-03-01 00:00:00

abstract：:Sprinting while towing a sled improves sprinting parameters, however, only kinematic and temporal-spatial variables have been reported. The purpose of this study was to determine how lower extremity joint moment impulses alter when towing a sled compared to normal walking. Twelve participants walked normally, walked w...

journal_title：Sports biomechanics

authors： Lawrence M,Hartigan E,Tu C

更新日期：2013-06-01 00:00:00

abstract：:In volleyball, the overhead pass is an important skill for passing a ball and making a set to attackers. In the present study, we analysed the overhead pass motion and involved muscle activity with special attention to the stretch-shortening cycle (SSC). Electromyogram was recorded from the wrist and elbow joint flexo...

journal_title：Sports biomechanics

authors： Ozawa Y,Uchiyama S,Ogawara K,Kanosue K,Yamada H

更新日期：2019-05-08 00:00:00

abstract：:Training to reduce landing forces is a common component of anterior cruciate ligament injury prevention programmes. The purpose of this study was to compare the effects of training incorporating instructions promoting an internal versus external attentional focus on landing forces in adolescent rugby athletes. Twenty-...

journal_title：Sports biomechanics

authors： Widenhoefer TL,Miller TM,Weigand MS,Watkins EA,Almonroeder TG

更新日期：2019-04-01 00:00:00

abstract：:In the current study, we quantified biological movement variability on the start and early acceleration phase of sprinting. Ten male athletes aged 17-23 years (100-m personal best: 10.87 +/- 0.36s) performed four 10-m sprints. Two 250-Hz cameras recorded the sagittal plane action to obtain the two-dimensional kinemati...

journal_title：Sports biomechanics

authors： Bradshaw EJ,Maulder PS,Keogh JW

更新日期：2007-09-01 00:00:00

abstract：:When the ankle is forced into inversion, the speed at which this movement occurs may affect the extent of injury. The purpose of this investigation was to develop a fulcrum device to mimic the mechanism of a lateral ankle sprain and to determine the reliability and validity of the temporal variables produced by this d...

journal_title：Sports biomechanics

authors： Knight AC,Weimar WH

更新日期：2012-09-01 00:00:00

abstract：:This study aimed to investigate: (1) the prevalence and magnitude of breast movement asymmetry, (2) the interaction between static and dynamic breast asymmetry and (3) the influence of sports bras on breast asymmetry during running. Position data were collected from 167 females whilst treadmill running and then a sub-...

journal_title：Sports biomechanics

authors： Exell TA,Milligan A,Burbage J,Risius D,Sanchez A,Horler B,Mills C,Wakefield-Scurr J

更新日期：2019-06-14 00:00:00

abstract：:This study looks at segmental movements in the jumping header from an optimization viewpoint. Investigations on the header so far have focused on head restriction in the movement but have not clarified how and to what extent body segments influence the performance of the skill. In the present study a biomechanical mod...

journal_title：Sports biomechanics

authors： Kristensen LB,Andersen TB,Sørensen H

更新日期：2004-07-01 00:00:00

abstract：:The proliferation of new biomechanical technology in laboratory and field settings facilitates the capture of data-sets consisting of complex time-series. An understanding of the appropriate statistical approaches for analysing and interpreting these data-sets is required and the functional data analysis (FDA) family ...

journal_title：Sports biomechanics

authors： Warmenhoven J,Cobley S,Draper C,Harrison A,Bargary N,Smith R

更新日期：2019-06-01 00:00:00

abstract：:The aim of this study was to compare a batsman's running and turning speed during three runs while wearing either traditional batting pads or one of two models of newly designed cricket batting pads. Fifteen cricketers participated. The running and turning speeds were measured on three different days with players usin...

journal_title：Sports biomechanics

authors： Loock N,Du Toit DE,Ventner DJ,Stretch RA

更新日期：2006-01-01 00:00:00

abstract：:The aim of this study was to understand changes in technique within an athlete's own performance during a sprint hurdles run. Four athletes performed a training session containing four trials each over 10 hurdles. Clearances at hurdles three and nine were videotaped from a side view and manually digitised. All athlete...

journal_title：Sports biomechanics

authors： Salo AI,Scarborough S

更新日期：2006-07-01 00:00:00

abstract：:Consecutive proximal-to-distal sequencing of motion is considered to be integral for generating high velocity of distal segments in many sports. Simultaneous usage of proximal and distal segments as seen in martial arts is by far less well investigated. Therefore, the aim of the study was to characterise and different...

journal_title：Sports biomechanics

authors： Fuchs PX,Lindinger SJ,Schwameder H

更新日期：2018-11-01 00:00:00

abstract：:Anticipation of ground reaction force (GRF) in depth jumping requires multisensory integration of exteroceptive, vestibular, and proprioceptive inputs. Vision contributes to the anticipation of GRF in drop landings and may influence depth jump performance when disrupted. The purpose of this investigation was to evalua...

journal_title：Sports biomechanics

authors： Kroll M,Preuss J,Ness BM,Dolny M,Louder T

更新日期：2020-06-08 00:00:00

abstract：:The tennis serve generates high musculoskeletal loads at the shoulder complex, making athletes particularly vulnerable to chronic injuries, especially adolescent players. Chronic injuries are commonly related to altered scapular kinematics. This study explored the effects of a history of shoulder problems involving hu...

journal_title：Sports biomechanics

authors： Gillet B,Begon M,Diger M,Berger-Vachon C,Rogowski I

更新日期：2018-11-09 00:00:00

abstract：:The aim of this study was to determine whether elite 1500-m runners differ in their running kinematics from national-standard 1500-m runners. Six national-standard male runners (seasonal best: 3 min 49.2 s +/- 3.2 s) were assessed during the second lap of a 1500-m race. Their running kinematics was then compared with ...

journal_title：Sports biomechanics

authors： Leskinen A,Häkkinen K,Virmavirta M,Isolehto J,Kyröläinen H

更新日期：2009-03-01 00:00:00

abstract：:The purpose of this study was to compare the lower extremity inter-joint coordination of different collision forces runners during running braking phase. A dynamical system approach was used to analyse the inter-joint coordination parameters. Data were collected with six infra-red cameras and two force plates. Accordi...

journal_title：Sports biomechanics

authors： Wang LI,Gu CY,Wang IL,Siao SW,Chen ST

更新日期：2018-06-01 00:00:00

abstract：:The aim of this study was to determine whether a constructivist approach, in particular a visit to a zoo, could be effective in consolidating mechanical concepts and applying those concepts to coaching and teaching. Ten students in their final year of their Bachelor of Physical Education at the University of Edinburgh...

journal_title：Sports biomechanics

authors： Sanders R,Sanders L

更新日期：2005-07-01 00:00:00

abstract：:Since clubface orientation at impact affects ball direction and ball spin, the ability to control clubface orientation is one of the most important skills for golfers. This study presents a new method to describe clubface orientation as a function of the clubshaft motions (i.e., swing plane orientation, clubshaft angl...

journal_title：Sports biomechanics

authors： Takagi T,Yokozawa T,Inaba Y,Matsuda Y,Shiraki H

更新日期：2017-09-01 00:00:00

abstract：:Tibial acceleration is a surrogate measure for impact loading and might be useful for identifying lower limb fatigue injury in runners. The resultant tibial acceleration calculated from all three axes of a triaxial accelerometer provides a single metric that is independent of the sensor orientation. The purpose of thi...

journal_title：Sports biomechanics

authors： Sheerin KR,Besier TF,Reid D

更新日期：2020-12-01 00:00:00

abstract：:In-shoe plantar pressure systems are commonly used in clinical and research settings to assess foot function during functional tasks. Recently, Tekscan® has updated their F-Scan® in-shoe plantar pressure system; however, this system's test-retest reliability has not been established. Therefore, the purpose of this stu...

journal_title：Sports biomechanics

authors： Patrick K,Donovan L

更新日期：2018-03-01 00:00:00

abstract：:The objective of this study was to investigate the effects of a simulated futsal match protocol on isokinetic knee torque production. Twenty-one young futsal players participated in this study and performed a futsal-specific protocol comprising two blocks of 20-minute activities to simulate the match demands. At pre-p...

journal_title：Sports biomechanics

authors： Dal Pupo J,Detanico D,Santos SG

更新日期：2014-11-01 00:00:00

abstract：:Drag is one of the major factors that influences kayaking performance. To focus on the drag of the kayak's hull shape and the paddlers' weight per se, the passive drag (Dp) was measured on a flat-water sprint course for one paddler with added weights. Dp was measured by an electromechanical towing device using a load ...

journal_title：Sports biomechanics

authors： Gomes BB,Conceição FA,Pendergast DR,Sanders RH,Vaz MA,Vilas-Boas JP

更新日期：2015-01-01 00:00:00

abstract：:Cutting in soccer is a common skill used to avoid the opponent's pressure but the potential effects of such a skill on instep kicking performance have not been previously investigated. The purpose of this study was to examine the differences in lower limb biomechanics between straight approach soccer kicks and kicks p...

journal_title：Sports biomechanics

authors： Katis A,Kellis E

更新日期：2011-03-01 00:00:00

abstract：:This study aimed to establish the nature of lower extremity intra-limb coordination variability in cycling and to investigate the coordinative adaptations that occur in response to changes in cadence and work rate. Six trained and six untrained males performed nine pedalling bouts on a cycle ergometer at various caden...

journal_title：Sports biomechanics

authors： Sides D,Wilson C

更新日期：2012-03-01 00:00:00