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2018

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Articles 4921 - 4950 of 62017

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Examining Internet Usage Patterns On Socio-Economic Benefits Of Marginalised Communities: The Case Of Community Information Centres In Ghana, Stephen Bekoe, Kodjo Atiso, Daniel Azerikatoa Ayoung, Lucy Dzandu, Kennedy Kubuga Kumangkem Nov 2018

Examining Internet Usage Patterns On Socio-Economic Benefits Of Marginalised Communities: The Case Of Community Information Centres In Ghana, Stephen Bekoe, Kodjo Atiso, Daniel Azerikatoa Ayoung, Lucy Dzandu, Kennedy Kubuga Kumangkem

Library Philosophy and Practice (e-journal)

In this paper, we explore the socio-economic effects of internet use at the community information centres (CICs) on livelihoods in three regions of Ghana. Sustainable livelihood framework was used as a lens to understand the phenomena being studied. Primary and secondary data collection methods were used. Three CICs in three regions were purposively selected and qualitative research method was adopted for the study. The data were analysed using Nvivo. The findings showed that sending email information was largely the reason why people used the Internet. We found that through the Internet, people learn, develop new business ideas and expand the …

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The Effects Of 21 Days Hypoxia On Electromyographic Activity Variation In Rowers Pre And Post-Altitude., Esteban Aedo-Muñoz, Christopher Moya-Jofre, Mauricio Araya-Ibacache, Jorge Cajigal, Bienvenido Front Nov 2018

The Effects Of 21 Days Hypoxia On Electromyographic Activity Variation In Rowers Pre And Post-Altitude., Esteban Aedo-Muñoz, Christopher Moya-Jofre, Mauricio Araya-Ibacache, Jorge Cajigal, Bienvenido Front

ISBS Proceedings Archive

The purpose of this study was to determine and to compare EMG characteristics of the vastus medial quadriceps in Chilean rowers in hypoxia. The sample was 11 Chilean elite rowers. The evaluation procedure consisted of every subject performing a maximal test of incremental ergospirometry intensity until fatigue. The EMG analysis was implemented when the sportsmen reached the VO2max intensity with wireless EMG. In the analysis, RMS EMG signals were utilized. The results showed a significant difference between EMG activity in normoxia pre-altitude and normoxia post-altitude after 21 days in hypoxia.

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Kicking Motion Difference Between Affected Arm Position, Madoka Kinoshita, Norihisa Fujii Nov 2018

Kicking Motion Difference Between Affected Arm Position, Madoka Kinoshita, Norihisa Fujii

ISBS Proceedings Archive

This study analysed the difference of motion between affected arm position in Para-Taekwondo roundhouse kick (right leg kick with right affected rear arm/P-TKD-R and left leg kick with right affected frontal arm/P-TKD-L) compared with a Taekwondo roundhouse kick (TKD). The results were summarized as follows: i) Distribution of using arm for helping upper torso and pelvis rotation was depending on unaffected arm; ii) P-TKD-L (affected frontal arm) firstly generate upper torso rotation; and iii) As for kicking speed, P-TKD-R (affected rear arm) was the same as TKD with whip-like-motion. Considered together, our data suggests that affected arm position affected mechanisms …

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A Comparison Of Hip Joint Kinetics During The Barbell Hip Thrust, Deadlift And Back Squat, Ian N. Bezodis, Laurie Needham, Adam Brazil Nov 2018

A Comparison Of Hip Joint Kinetics During The Barbell Hip Thrust, Deadlift And Back Squat, Ian N. Bezodis, Laurie Needham, Adam Brazil

ISBS Proceedings Archive

The barbell hip thrust, deadlift and back squat are all exercises designed to strengthen the hip extensor muscles. The aim of this study was to directly compare hip joint kinetics in the lifting phase of the barbell hip thrust with those in the deadlift and back squat. Six resistance-trained men performed one set of three repetitions at 90% 1RM of each exercise. Kinematic (250 Hz) and kinetic data (1000 Hz) were used to calculate hip angle and moment throughout each lifting phase. Analysis of continuous data revealed that the hip extensor moment was significantly greater early in the lifting phase …

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Detraining Effects Of Tai Chi On Static Balance In Older Women, Wei Sun, Qipeng Song, Cui Zhang, Peixin Shen, Dewei Mao Nov 2018

Detraining Effects Of Tai Chi On Static Balance In Older Women, Wei Sun, Qipeng Song, Cui Zhang, Peixin Shen, Dewei Mao

ISBS Proceedings Archive

This study aimed to investigate the detraining effects of Tai Chi (TC) on balance ability in single leg stance (SLS). TC, brisk walking (BW), and control (C) groups completed a 16-week intervention and 8-week detraining program. Time and center of pressure trajectory in SLS was tested with pressure plate at baseline, 16th, 24th week. Primary outcome (Time) and secondary outcomes (Lng, Area, D-ap, D-ml) improved significantly at the 16th week in the TC and BW groups. Most outcomes increased significantly at the 24th week compared to the 16th week in the BW group. TC …

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Examining The Reliability And Validity Of The Fitbit® Charge 2™ On Step Count During Treadmill Exercise, Mahalie Hargis, Robert O. Powell, Suzanne M. Konz Nov 2018

Examining The Reliability And Validity Of The Fitbit® Charge 2™ On Step Count During Treadmill Exercise, Mahalie Hargis, Robert O. Powell, Suzanne M. Konz

ISBS Proceedings Archive

The purpose of this study was to determine the reliability and validity of the Fitbit® Charge 2™ to count steps during a treadmill protocol. The participants wore a Fitbit® Charge 2™ on their wrist. 16 participants who met inclusion criteria were assigned to the following testing conditions; GPS stride length/manual stride length and hold/no-hold onto the handrails of the treadmill. The participants completed a walking protocol that included light (60% of HRR) intensities. The Fitbit® Charge 2™ step count and the manually counted steps were documented. Intraclass Correlation Coefficients (ICC) analysis found that the Fitbit® Charge 2™ was not reliable …

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A Targeted Load-Carriage Training Program Elicits Positive Adaptations After 10-Weeks, Jodie A. Wills, David J. Saxby, Daniel J. Glassbrook, Tim L.A Doyle Nov 2018

A Targeted Load-Carriage Training Program Elicits Positive Adaptations After 10-Weeks, Jodie A. Wills, David J. Saxby, Daniel J. Glassbrook, Tim L.A Doyle

ISBS Proceedings Archive

The purpose of this study was to identify and characterise physical performance responses to a targeted 10-week load-carriage physical training intervention in males. Performance measures of maximal strength, heart rate, rating of perceived exertion, and basic fitness from nine male civilians before and after the 10-week training intervention are presented. There were significant increases in maximal force (~200 N) and aerobic performance (Level. Shuttle 8.9 vs 9,4 variables). Small-to-large effect sizes were shown for basic fitness and perceptual responses. The 10-week load-carriage physical training intervention elicited physical performance improvements and may facilitate load-carriage task performance.

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A Biomechanical Comparison Between Strongman Events And Technically Similar Traditional Weight Training Exercises: A Narrative Review, Ben Hindle, Paul Winwood, Anna Lorimer, Justin Keogh Nov 2018

A Biomechanical Comparison Between Strongman Events And Technically Similar Traditional Weight Training Exercises: A Narrative Review, Ben Hindle, Paul Winwood, Anna Lorimer, Justin Keogh

ISBS Proceedings Archive

A literature search was conducted to identify studies comparing biomechanical parameters of strongman events and technically similar traditional weight training exercises. While many similarities were identified, the farmers walk may result in reduced stress placed on the lumbar spine due to the more vertical trunk than when performing the deadlift under identical loading conditions, the heavy sled pull may be used to better develop anterior force production than the back squat, and the log lift may be used to better develop forceful hip extension during a triple extension movement than the clean and jerk. The identification of biomechanical similarities and …

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Force-Velocity Profiles Of Dancers And Endurance Runners During Ankle-Specific Stretch-Shortening Cycle Tasks, Paige E. Rice, Kevin A. Zwetsloot, Alan R. Needle, Amelia S. Bruce, Caroline D. Guthrie, Lydia A. Gillen, Sophia Nimphius Nov 2018

Force-Velocity Profiles Of Dancers And Endurance Runners During Ankle-Specific Stretch-Shortening Cycle Tasks, Paige E. Rice, Kevin A. Zwetsloot, Alan R. Needle, Amelia S. Bruce, Caroline D. Guthrie, Lydia A. Gillen, Sophia Nimphius

ISBS Proceedings Archive

While dance and endurance running drastically differ from one another in an anecdotal context, both modalities of movement necessitate proficient stretch-shortening cycle (SSC) function about the ankle-joint. The purpose of the present study was to compare force-velocity profiles in dancers (n=6) and endurance runners (n=6) during a countermovement hop (CMH) and 30 cm drop hop (DH30) to elucidate differences between groups that would potentially stimulate effective training regimens. Average relative force-time, velocity-time and force-velocity curves were generated for each group’s CMH and DH30. Dancers hopped significantly higher (p ≤ 0.05) than endurance runners in both hopping tasks. Data from this …

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Biomechanics Of Stationary Exercise In Overweight And Normal-Weight Children, Mostafa Yaghoubi Nov 2018

Biomechanics Of Stationary Exercise In Overweight And Normal-Weight Children, Mostafa Yaghoubi

ISBS Proceedings Archive

The purpose of this study was to examine the differences in lower extremity kinematics and muscle activation patterns in normal weight and overweight children during stationary exercises at submaximal intensity. Twenty-five children (10-13 years) were recruited and classified as overweight (OW) and normal-weight (NW). Electromyography, the ratings of perceived exertion (RPE) and range of motion (ROM) of lower extremity joints were collected during stationary exercises. ANOVAs compared muscle activation, ROM and RPE between groups, and exercises. Compared to NW, OW experienced significantly greater RPE and muscle amplitude in all muscles apart from VL during stationary exercises. Children with greater mass …

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Classification Of Overarm Throwing Motion In Japanese Elementary School Girls, Yasuto Kobayashi Nov 2018

Classification Of Overarm Throwing Motion In Japanese Elementary School Girls, Yasuto Kobayashi

ISBS Proceedings Archive

The purpose of this study was to classify the overarm throwing motion of elementary-aged girls. Throwing motion of forty girls from sixth-grade was analyzed three-dimensionally. The z-score of joint angles was calculated as an index of deviation from a standard motion model and used as a variable for cluster analysis. Based on a distance between the clusters, the throwing motions of the sixth-grade girls were classified into three groups. One group had a throwing motion similar to the standard motion model, resulting in significantly longer throwing distances, while the other groups exhibited throwing motions that differed from the standard motion …

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Effects Of Front Squat Training Methods On Front Squat One Repetition Max And Clean Pull Force Production, Brian R. Budd Ii, Randall L. Jensen Nov 2018

Effects Of Front Squat Training Methods On Front Squat One Repetition Max And Clean Pull Force Production, Brian R. Budd Ii, Randall L. Jensen

ISBS Proceedings Archive

This study examined effects of a 6 week front squat training program using a standard weight lifting technique (control) or a time under tension (TUT) technique on clean pull peak ground reaction force (pGRF) and front squat one rep maximum (1RM). Male collegiate subjects (n=9) with strength training experience performed a front squat 1RM. They also did a clean pull with their reported clean 1RM on force platforms pre and post training to determine pGRF. Front squat 1RM and pGRF for the clean didn’t differ between groups (p>0.05) from pre to post-testing. Front squat 1RM increased 5.3% from pre …

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Information Seeking Behaviour Of Rural Women On Family Planning In Epe Local Government, Lagos., Adeola Esther George Mrs Nov 2018

Information Seeking Behaviour Of Rural Women On Family Planning In Epe Local Government, Lagos., Adeola Esther George Mrs

Library Philosophy and Practice (e-journal)

This research work examined the information seeking behaviour of rural women on Family Planning in Epe Local Government, Lagos State. Survey research method was adopted. The sample size of the study was one hundred and fifty respondents (120). The instrument used to gather relevant information was questionnaire. Also pilot survey was carried out to ensure validity and reliability of the instrument, the data analysis method used was simple frequency count, percentage and correlation. Result of the findings was discussed and conclusions made.

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Changes In Running Speed And Step Variables Measured By Inertial Sensors During Marathon, Yasushi Enomoto, Muhammad Jafar Ali, Takehiro Aibara, Yoshiharu Nabekura Nov 2018

Changes In Running Speed And Step Variables Measured By Inertial Sensors During Marathon, Yasushi Enomoto, Muhammad Jafar Ali, Takehiro Aibara, Yoshiharu Nabekura

ISBS Proceedings Archive

The purpose of this study was to quantify endurance performance for a wide range of running population bymeasuring running speed and step variables using inertial sensors during marathon. The total of ninety-one runners (71 males and 20 females) participated in this studyand step variable data was measured by attaching inertial sensor, developed by Casio, at the sacrum. Runners were classified into sub-groups (3, 4, 5 & 6), based on race time.One-way RM ANOVA witnin sub-groups showed a significant decreasein running speed, step length, andvertical oscillation through the race but step frequency remained stable for most of the runners. The Sub …

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Effect Of The Timing Of The Pole Plant On Energy Loss In The Pole Vault Take-Off, Nicholas P. Linthorne Nov 2018

Effect Of The Timing Of The Pole Plant On Energy Loss In The Pole Vault Take-Off, Nicholas P. Linthorne

ISBS Proceedings Archive

Some leading pole vault coaches recommend a late planting of the pole, at close to the instant of take-off. This technique is believed to reduce the energy lost during the take-off and produce a higher vault. The present study re-analysed data from a previous study in which male pole vaulters manipulated the timing of the pole plant. An individual analysis showed that the timing of the pole plant did not clearly affect the change in the total energy of the athlete/pole system during the take-off. This result suggests there might be no advantage in using a late pole plant. An …

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Changes In Gait And Coordination Variability In Persons With Multiple Sclerosis Following A Rehabilitation Program, Olivia D. Perrin, Alyssa J. Rebensburg, Sarah B. Clarke, Cathy Ruprecht, Randall L. Jensen, Kim Spranger, Lynn Vanwelsenaers, Ine Mylle Nov 2018

Changes In Gait And Coordination Variability In Persons With Multiple Sclerosis Following A Rehabilitation Program, Olivia D. Perrin, Alyssa J. Rebensburg, Sarah B. Clarke, Cathy Ruprecht, Randall L. Jensen, Kim Spranger, Lynn Vanwelsenaers, Ine Mylle

ISBS Proceedings Archive

This study investigated changes in gait and coordination variability in persons with Multiple Sclerosis (MS) after an 8-week rehabilitation intervention. Data for eight participants (Control: 4, Intervention: 4) were analyzed via Cortex Motion Analysis software and Visual 3D to calculate knee and ankle joint angles as well as discrete spatiotemporal parameters. The knee and ankle joint angles were further analyzed using a vector coding technique to quantify coordination between these joints and how they produce a functional gait pattern. No significant changes in gait or coordination variability were found after rehabilitation, but some meaningful changes with large and moderate effect …

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Estimation Of Running Injury Risks Using Wearable Sensors, Akihiko Murai, Chika Shiogama, Ding Ming, Jun Takamatsu, Mitsunori Tada, Tsukasa Ogasawara Nov 2018

Estimation Of Running Injury Risks Using Wearable Sensors, Akihiko Murai, Chika Shiogama, Ding Ming, Jun Takamatsu, Mitsunori Tada, Tsukasa Ogasawara

ISBS Proceedings Archive

This research estimates running pattern characteristics that relate to running injury risks quantitatively and simply from a real-environment running motion. Wearable inertial measurement unit (IMU) sensors are used to provide a simple measurement of the running patterns in a real environment. We then measure an experimental running motion in detail in the laboratory using both large-scale devices and wearable sensors, and build correlational models between the conventional parameters related to running injury risks and parameters from wearable sensors. These correlational models realize a quantitative and simple estimation of running pattern characteristics related to running injury risks from a real-environment running …

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The Effect Of Hip Joint Muscle Strength And Size On Hip Joint Angular Velocity During 110 M Hurdling Motion, Hitoshi Okutani, Tadashi Suga, Misaki Wakamiya, Tadao Isaka, Akinori Nagano Nov 2018

The Effect Of Hip Joint Muscle Strength And Size On Hip Joint Angular Velocity During 110 M Hurdling Motion, Hitoshi Okutani, Tadashi Suga, Misaki Wakamiya, Tadao Isaka, Akinori Nagano

ISBS Proceedings Archive

The purpose of this study was to investigate the effect of hip joint flexor/extensor strength andsize on hip joint angular velocity during 110 m hurdling motion. To achieve this goal, we determined hip joint angular velocity during hurdling motion with high speed camera. We also measured isokinetic hip joint torque with a dynamometer, and measured the muscle volume of the psoas major muscle and hamstrings of the lead leg side with MRI. There were significant correlations between isokinetic hip joint flexor torque at 0.52 and 1.05 rad/s and hip joint flexion angular velocity (p = 0.04 and p = 0.02, …

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Shot Success And Kinematic Differences With Altering Kicking Position On Goalshooting Technique In Australian Football, Kevin Ball, Stephanie Blair Nov 2018

Shot Success And Kinematic Differences With Altering Kicking Position On Goalshooting Technique In Australian Football, Kevin Ball, Stephanie Blair

ISBS Proceedings Archive

In Australian Football, goalshots are taken from a range of distances and angles to the goal. The aim of this study was to evaluate if performance and technique differed for goalshots from different sides of the posts. Seventeen players performed 10 goalshots from two different positions (45° to the left (L45) and 45° to the right (R45) of goals) on an Australian Football ground. Kicking kinematics were measured using the Xsens MVN link inertial measurement system (240Hz). Shot success was slightly better for kicks from the left (62 v 59%). Technical differences were limited with small effects evident for knee …

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Differences In Accuracy And Consistency In Elite Lawn Bowlers, Samantha M. Birse, Kate Webster, Jodie Mcclelland, Kane Middleton Nov 2018

Differences In Accuracy And Consistency In Elite Lawn Bowlers, Samantha M. Birse, Kate Webster, Jodie Mcclelland, Kane Middleton

ISBS Proceedings Archive

The purpose of this study was to compare the accuracy and consistency of repeated lawn bowls deliveries across four different bowling conditions, as well as the bias in displacement of bowls that did not hit the target. Twenty-seven national and international representative lawn bowls athletes completed 16 forehand and backhand deliveries at two different bowling lengths. The resting position of each bowl in relation to the target was used to calculate width, length and absolute displacement of bowls from the target for each participant in each condition. Accuracy was not different between conditions, but athletes were less consistent in delivering …

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Effects Of Different Pedaling Positions By Dynamic-Fitting On Muscle Fatigue And Energy Expenditure In Amateur Cyclists, Tang Chun-Kai Nov 2018

Effects Of Different Pedaling Positions By Dynamic-Fitting On Muscle Fatigue And Energy Expenditure In Amateur Cyclists, Tang Chun-Kai

ISBS Proceedings Archive

Inappropriate cycling positions may affect muscle usage and raise the fatigue level or risk of sport injury. Dynamic bike fitting helps the cyclists select proper bikes and adjust them to fit their ergometry. The purpose of this study is to investigate how different “knee forward of foot” (KFOF) distances can influence the rate of muscle fatigue and the energy expenditure during long periods of cycling. 6 amateur cyclists were recruited to perform the graded exercise testing with different pedaling positions at four KFOF distances (+20, 0, -20, and -40 mm). Our results revealed that the muscle fatigue level, oxygen consumption …

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Gait Pathomechanics As Differentiators Of Performance In Collegiate Distance Runners: A Team Case Analysis, Ian Mcquate, Monique Mokha Nov 2018

Gait Pathomechanics As Differentiators Of Performance In Collegiate Distance Runners: A Team Case Analysis, Ian Mcquate, Monique Mokha

ISBS Proceedings Archive

The purpose of the study was to determine if gait pathomechanics could differentiate between top and bottom performing runners. Two top-performers and two bottom-performers from both men’s and women’s college cross-country teams underwent motion analysis while running on a treadmill in the pre-participation medical examination. Bottom-performing males had greater peak hip adduction, hip internal rotation, contralateral pelvis drop, rearfoot eversion, and initial impact (vGRF) during stance than top-performing males. Bottom-performing females had greater hip internal rotation and vGRF than top-performing females. Coaches may use these results to promote proper running mechanics, especially in younger runners to not only reduce injury …

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Changes In Sprint Start Performance Due To Variation In Block Pedal Angles On Non-Experienced, But Coached Participants, Aki I. T. Salo, Steffi L. Colyer, Jonathon J. Sheppard, Olli Okkonen Nov 2018

Changes In Sprint Start Performance Due To Variation In Block Pedal Angles On Non-Experienced, But Coached Participants, Aki I. T. Salo, Steffi L. Colyer, Jonathon J. Sheppard, Olli Okkonen

ISBS Proceedings Archive

Athletes have considerable freedom to set the starting blocks in athletics sprint events. We aimed to understand how the block pedal angle changes influence force production and performance of the start. Fifteen non-experienced, but coached participants performed a total of 18 starts each (three starts with each of 6 different block settings) in a random order. Linear mixed modelling of ground reaction forces (1000 Hz) and motion data (200 Hz) yielded 6.4% higher values (p


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Synchronization And Towing Effect On Adult One-Dog Canicross Performance, Ashlyn M. Jendro, Sarah B. Clarke, Randall L. Jensen, Elizabeth Wuorinen, Tim Hunt Nov 2018

Synchronization And Towing Effect On Adult One-Dog Canicross Performance, Ashlyn M. Jendro, Sarah B. Clarke, Randall L. Jensen, Elizabeth Wuorinen, Tim Hunt

ISBS Proceedings Archive

Canicross is competitive team sport in which a human athlete is towed via a canine athlete on an elastic gangline. Although human performance factors play a role in the success of the canicross team, the interaction between human and canine athletes may also play a crucial role on the performance of the team. The purpose of this study was to assess the synchronization patterns across different locations in competitive canicross events and investigate the influences of canine mass on a timed trial event. Video was taken at five locations along the trail of two different competitive canicross events. Synchronization was …

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The Kinematics Of Overground Sprinting In Track And Field Athletes With Previous Hamstring Injuries, Ayako Higashihara, Takashi Ono, Gaku Tokutake, Rieko Kuramochi, Yasuhiro Kunita, Yasuharu Nagano, Norikazu Hirose Nov 2018

The Kinematics Of Overground Sprinting In Track And Field Athletes With Previous Hamstring Injuries, Ayako Higashihara, Takashi Ono, Gaku Tokutake, Rieko Kuramochi, Yasuhiro Kunita, Yasuharu Nagano, Norikazu Hirose

ISBS Proceedings Archive

The purpose of this study was to examine the kinematic characteristics of lower extremity and long head of the biceps femoris (BFlh) muscle length during overground sprinting in track and field athletes with previous unilateral hamstring strain injuries. Ten male college sprinters with a history of hamstring injury performed a maximum effort sprint on an athletic track. Three-dimensional kinematic data were recorded during sprinting, and the hip and knee joint angles and musculotendon length of the biceps femoris muscle were calculated. The previously injured limb displayed delayed peak hip flexion and increased knee flexion compared with the uninjured limb, placing …

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Adjustment In The Takeoff Phase Of 1-M Springboard Forward Dives, Mohsen Sayyah, Dr Mark A. King, Dr Michael J. Hiley, Prof. M. R. (Fred) Yeadon Nov 2018

Adjustment In The Takeoff Phase Of 1-M Springboard Forward Dives, Mohsen Sayyah, Dr Mark A. King, Dr Michael J. Hiley, Prof. M. R. (Fred) Yeadon

ISBS Proceedings Archive

The aim of this study was to investigate whether any adjustment is made during the board contact phase of 1-m springboard forward dives. Variability of body orientation angle at landing from hurdle (touchdown) and at takeoff together with joint angle time histories of 15 forward pike dive takeoffs, performed by an international diver, were determined using video analysis. A computer simulation model of a diver and springboard was used to determine the effects of perturbations of initial conditions on takeoff variability. The variation at takeoff obtained in the simulation outcome was much greater than in the actual performance, indicating that …

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Profiles Of Young Scholar Award Winners In Biomechanics, Duane Knudson Nov 2018

Profiles Of Young Scholar Award Winners In Biomechanics, Duane Knudson

ISBS Proceedings Archive

This study documented the citation bibliometrics the recent winners of two international young scholar awards in biomechanics. Harzing’s Publish or Perish 5.37 software was used to search Google Scholar (GS) for publications and ten bibliometric variables for the five most recent winners of ISBS and ISB young scholar awards. Typical young scholar award winners had impressive indexed publication records with high mean citation rates (77 ± 46 citations per year) indicating quick usage of their research. Use of multiple bibliometric variables from GS or other database may provide support information for award committee subjective judgments.

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Use Of Nonlinear Measures To Compare Athlete Postural Sway Dynamics, Eric W. Slattery, Mark Walsh Nov 2018

Use Of Nonlinear Measures To Compare Athlete Postural Sway Dynamics, Eric W. Slattery, Mark Walsh

ISBS Proceedings Archive

The purpose of this study was to examine the use of nonlinear analysis as a tool to evaluate postural sway patterns in athletes and physically active non-athletes. Balance is an integral part of many sports but seems to be task specific. Data collection occurred for 30 seconds during eyes open condition on Double Leg and Single Left and Right Leg trials. Analysis of the data using Transfer Entropy (TE) and Fractal Dimension (FD) yielded Ice Hockey and Football players having distinctly different postural dynamic control from each other and physically active non-players in only a couple conditions for TE and …

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Breast Movement Asymmetry During Running: Implications On Breast Support, Timothy A. Exell, Alexandra Milligan, Jenny Burbage, Debbie Risius, Amy Sanchez, Brogan Horler, Chris Mills, Joanna Wakefield-Scurr Nov 2018

Breast Movement Asymmetry During Running: Implications On Breast Support, Timothy A. Exell, Alexandra Milligan, Jenny Burbage, Debbie Risius, Amy Sanchez, Brogan Horler, Chris Mills, Joanna Wakefield-Scurr

ISBS Proceedings Archive

This study aimed to investigate 1) the prevalence and magnitude of breast movement asymmetry, 2) the interaction between static and dynamic breast asymmetry during running and 3) the influence of sports bras on breast asymmetry. Nipple position data were collected from 167 female participants whilst treadmill running and then from a sub-group of twelve participants running in different bra conditions. Breast movement asymmetry was present in 74% of participant during running, with greater resultant static breast position asymmetry for participants that displayed asymmetry whilst running. Asymmetry was most commonly caused (65 - 80%) by greater movement of the …

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Kinematic Asymmetry During A 30-Minute High Intensity Run, Laura-Anne M. Furlong, Graham H. Pooles, Simon Briley Nov 2018

Kinematic Asymmetry During A 30-Minute High Intensity Run, Laura-Anne M. Furlong, Graham H. Pooles, Simon Briley

ISBS Proceedings Archive

Asymmetry in movement is topical but poorly understood in terms of knowing how it relates to musculoskeletal health, and how it typically varies during an activity in otherwise healthy individuals. The aim of this study was to investigate how asymmetry of running kinematics changed over the course of a 30 minute, high intensity run in a group of healthy young adult males. Using 3D motion analysis, average, variability and asymmetry data related to ground contact time, stride time, duty factor, and relative phasing of heel strike to the opposing stride cycle were acquired. No effect of time on average or …

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