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Isbs 2018 Auckland Conference Aut Millennium Teachers Day, Sarah-Kate Millar, Kim Hebert-Losier, Laura-Anne Furlong, Philip Fink, Duane Knudson, Suzanne Belcher

ISBS Proceedings Archive

Dr Sarah Kate Millar is coordinating the New Zealand Biomechanics Teachers Day. Teachers will have the opportunity to work side-by-side with leading biomechanics instructors/researcher from across the world. There will be a focus on creating hands-on experiential learning opportunities to achieve science and physical education outcomes.

Sarah-Kate Millar is a senior lecturer at AUT (AUT) in the area of sports coaching and in particular skill acquisition. Dr. Kim Hébert-Losier is a Senior Lecturer in Applied Biomechanics and Injury Prevention at the University of Waikato. Dr Laura-Anne M Furlong is a Lecturer in Biomechanics, currently based in the School of Sport, …

Isbs 2018 Auckland Conference Sports Technology Showcase Programme, Patria Hume, Jono Neville, Shelley Diewald, Farhan Tinwala, Steve Lefty, Farshid Sarmast, Parn Jones, Eric Helms, Wilson Huang, Xiaoyou Lin, Brandt Li, Holly Sutich, Bradley Phagan, Arien Hielkema, Yasir Al-Hilali, Daniel Thomson, Emily Coates, Colin Anderson

ISBS Proceedings Archive

The coordinators Amber Taylor (AUT Ventures), Rosanne Ellis (AUT Research and Innovation Office), and Ryan Archibald (ATEED) have selected companies with new products to be explored by biomechanists. We hope you gain ideas for your research and learn how to commercialise your products at this showcase. ISBS 2018 Auckland Conference Industry Partner Tekscan are supporting the lunch during the showcase.

Dr Jono Neville, Shelley Diewald, and Farhan Tinwala will be showcasing AUT Strain Gauge. AUT Strain gauge allows for a valid and reliable assessment of the strength of an entire class or team in a relatively short amount of time. …

Isbs 2018 Auckland Conference Sir Graeme Avery Honour Award Ceremony, Patria Hume, Mike Stanley, Beatrice Faumuina, Young-Hoo Kwon

ISBS Proceedings Archive

Sir Graeme Avery’s 2014 knighthood was for services to business and sport. He was admitted to the New Zealand Business Hall of Fame in 2014. Sir Graeme was a 400m runner and played first grade rugby in Sydney. He has more than 45 years involvement in athletics at club, regional, national and international level.

Sir Graeme founded Adis International, the medical publishing company he developed from scratch in 1963. This company is well known to sports biomechanists as it publishes the high impact factor journal Sports Medicine.

A strong supporter of sport, especially athletics, Sir Graeme led the fundraising campaign …

Isbs 2018 Auckland Conference Sprinz-Hpsnz-Aut Millennium Applied Programme, Patria Hume, Martin Dowson, Mike Stanley, Barry Wilson, Simon Briscoe, Allan Carman, Jodie Cosser, Justin Evans, Sarah-Kate Millar, Michael Schofield, Kim Hebert-Losier, Craig Harrison, Kim Simperingham, Bruce Hamilton, Kelly Sheerin, Rodrigo Rico Bini, Andrew E. Kilding, Robert Tang, Andre De Jong, Farhan Tinwala, Cameron Ross, Paul Mcalpine, Josh Mcgeown, Enora Le Flao, Dustin Oranchuk, Erika Ikeda, Jono Neville, Aaron Uthoff, Andrew Pichardo, Shelley Diewald, Renata Gottgtroy, Jessica Yeoman, Casey Watkins, Eric Harbour, Anja Zoellner, Alyssa Joy Spence, Victor Lopez Jr, Albert Chang

ISBS Proceedings Archive

An interactive afternoon of sessions delivered by High Performance Sport New Zealand (HPSNZ) and AUT SPRINZ Biomechanists, Performance Analysts and other biomechanics relevant sport facing practitioners. The 11 sessions are at AUT Millennium (AUTM), which is a satellite site of AUT University and the Auckland training hub for many HPSNZ supported sports such as athletics, sailing, and swimming. These sports and others (cycling, rowing, snow sports etc.) will be represented in the line-up. The applied sessions involve practical demonstrations of aspects of analysis and/or tools used to deliver in the field to directly positively impact athletes performances on the world …

Isbs 2018 Auckland Conference Vip Appreciation Evening Programme, Patria Hume, Peter Mcnair, Jacqueline Alderson, Kelly Sheerin

ISBS Proceedings Archive

The VIP event is to acknowledge the work of the industry partners for their active engagement in the conference, and for being willing to take on a new format. The event will also acknowledge two special guests (yes it is a surprise!), and the reviewers for the ISBS 2018 Conference papers, the invited speakers and the ISBS Fellows, ISBS Life members and ISBS Board members.

Professor Peter McNair will be the master of ceremonies. Peter is an internationally respected biomechanist for his work in musculoskeletal biomechanics, injury rehabilitation and sports biomechanics. Peter was the inaugural Director of the AUT Health …

Isbs 2018 Auckland Conference Student Mentor Breakfast Programme, Patria Hume, Timothy Exell, Gillian Weir

ISBS Proceedings Archive

Thank you to the 46 mentors for generously agreeing to be part of the student mentor programme. There are 46 mentors matched with 46 mentees (92 total).

The ISBS Student Mentor Program will take place during a breakfast session so that mentors and mentees can meet and talk over breakfast in an informal atmosphere.

Students are asked to prepare for the mentor programme by considering which research topics and questions that they would like to discuss with their mentor. Students are advised to prepare a summary of their research so that they can provide the mentor with an overview at …

A Functional Study Of A New Diabetic Foot Shoe, Shuping Li, Rongrong Yin, Yang Yang, Youlian Hong

ISBS Proceedings Archive

The purpose of this study was to testing the function of a new diabetic foot shoe - BMWALKER shoe which designed for Chinese people in daily activities and made a comparison with that of DARCO by means of plantar pressure distribution analysis and subjective wearing sense evaluation of diabetic patients. It was showed either BMWALKER or DARCO diabetic shoes could reduce the pressure and impulse at the ball of foot (M2-5 metatarsus), thus balance the pressure in the nine regions of the foot sole and abate the risk of damage due to high pressure and long time impact. The DARCO …

Isbs 2018 Auckland Conference Opening Ceremony Order Of Proceedings, Patria Hume, Valance Smith, Derek Mccormack, Max Abbott, Mike Stanley, Michael Scott, Pam Ford, Young-Hoo Kwon, Laura-Anne Furlong, Hermann Schwameder, Imogen Moorehouse, Alex Muir

ISBS Proceedings Archive

The Master of Ceremony Professor Patria Hume will ask delegates to stand at the commencement of the opening for the procession of the dignitaries to the auditorium.

Dignitaries will be called into the auditorium via the Māori traditional karanga, and will proceed to their seats.

The first formal address will be given by kaihāpai Dr Valance Smith and commence with a Karakia (Blessing) and Mihi Whakatau welcoming dignitaries, guests and delegates to the ISBS 2018 Conference.

Derek McCormack, the AUT Vice-Chancellor, will address the assembled company and welcome them to AUT for the conference hosted in partnership by AUT, AUTM, …

Isbs 2018 Auckland Conference Workshops Programme, Patria Hume, Philip Graham-Smith, Josh Mcgeown, Gillian Weir, Mike Mcguigan, Dustin Oranchuk, Dylan Cleaver, Sayumi Iwamoto, Ryu Nagahara, Aaron Uthoff, Boris Bacic, Russel Pears, Steve Mcmillan, Erin Feser

ISBS Proceedings Archive

FORCEDECKS WORKSHOP - COMMERCIALISATION & FUNDING by Philip Graham Smith

This workshop aims to improve your ability to attract and create commercialisation and funding opportunities. This workshop will challenge delegates to identify their real areas of expertise and consider ways in which they can attract and create funding opportunities. The aim is to help academics of all ages to focus their expertise, to manage their time more effectively and to explore new avenues to make their careers more rewarding, fulfilling and hopefully less stressful. Having been a former Head of Department and Associate Head of School (Business & Engagement), Dr …

Pre-Impact Fall Detection Using Vertical Angle And Acceleration Triangle Feature, Youngho Kim

ISBS Proceedings Archive

In this study, pre-impact fall detection algorithms were developed using an IMU sensor at the waist. Forty male volunteers participated in the experiments (four types of falls and six types of ADLs). An IMU was used to measure acceleration, angular velocity and vertical angle during all activities. Thresholds of acceleration, angular velocity, and vertical angle were set to 0.9 g, 47.3°/s, and 24.7° respectively for algorithm using vertical angle. Thresholds of acceleration, angular velocity, and triangle feature were set to 0.9 g, 47.3°/s, and 0.19 respectively for pre-impact fall detection algorithm using triagle feature. Pre-impact fall detection algorithms with the …

The Relationship Between Angular Momentum Of Body Segment And Velocity Of The Clubhead In Women’S Driver Shot, Atsushi Okamoto

ISBS Proceedings Archive

The purpose of this study was to investigate the relationship between angular momentum of body segments and maximum velocity of the clubhead during the downswing phase in women’s driver shot. Six female professional and eight female amateur golfers were volunteered as subjects(age = 27.8 ± 15.1 yrs, height = 1.62 ± 0.05 m, mass = 59.6 ± 7.6 kg). Motion was captured by using a VICON motion capture system. Maximum clubhead velocity was calculated. Then angular velocity and angular momentum of pelvis and thorax were calculated. The maximum velocity of clubhead was 38.4 ± 1.9 m/s. The maximum angular momentum …

Patellofemoral Subgroups, A Low Cost Clinical Approach With A Surprise Or Two!, James Selfe

ISBS Proceedings Archive

Identification of subgroups within the patellofemoral pain (PFP) population has gained a lot of interest and attention from the research community in recent years due to the recognition of the relatively poor patient outcomes associated with the traditional multimodal approach. This presentation summarises the results of the Targeted Interventions for Patellofemoral Pain (TIPPs) programme of research that has led to the development of a robust simple hierarchical algorithm. The TIPPs algorithm uses objective data generated by six low cost clinical tests to categorise patients into one of three subgroups: a) Strong (22% of participants); b) Weak and Tight (39% of …

A Pilot Investigation Into Force Production In Tethered Swimming As An Individual Monitoring Tool, Thomas Wackwitz, Simon Pearson

ISBS Proceedings Archive

Gaining an understanding of the physical capabilities and capacities that underpin the performance of a complex skill are important to help guide performance development at the elite level. The purpose of this study was to improve understanding of the force generating characteristics that relate to performance in elite swimmers. Three elite butterfly swimmers were tested over six weeks to examine the interactions between force-derived variables from 30 s of maximal tethered swimming and maximal 50m swimming performance, both performed using the butterfly stroke. Mean force, peak force and impulse per stroke all displayed very strong relationships with 50m swim time …

Coordination Variability Associated With Attendence To A Longitudinal Reducing Biofeedback Schedule, Franky Mulloy, David Mullineaux, Gareth Irwin, Genevieve William,S

ISBS Proceedings Archive

The aim of this paper was to assess skill exploration via coordinated variability (CoordVar) during attendance to a longitudinal, reducing biofeedback (BFb) intervention. Novices (n=15 BFb; n=15 Control) were introduced to a lunge touch task. Visual BFb were given on the timing and magnitude of rear leg kinematics. A modified CI2 method (CI2area) was used to quantify CoordVar for rear leg joint couplings. Coefficient of variability was used to quantify CoM horizontal velocity as performance variability (PerfVar). Linear regression 95% confidence intervals were compared between groups to assess changes over time. The BFb group demonstrated increasing CoordVar as a response …

Head Impact Monitoring: What New Methodologies Could Do For Concussion Biomechanics, Enora Le Flao, Patria Hume, Doug King

ISBS Proceedings Archive

Concussion has become a world-wide concern for sports participants. In-vivo head impacts monitoring has long been proposed as a way of identifying and even helping to prevent concussions. Several head impact devices were developed to measure head kinematics on the field, allowing the study of a wide range of sports. However, after fifteen years of data collection and despite a better understanding of injury mechanisms, concussion biomechanics still presents numerous challenges. This study aimed to summarize current knowledge of head impact monitoring via narrative and systematic reviews. The discussion was focused on how technology might have limited previous research, and …

Change Of Direction Motion During The Defensive Phase In Soccer Players, Fusako Kawahara, Takuya Yoshida, Seita Kuki, Satoru Tanigawa

ISBS Proceedings Archive

The purpose of the this study was to the change of direction (COD) movement in the backward direction during the defensive phase. Thirteen male soccer players performed the reactive agility test (RAT) and sprint running. Analysis classified the players to two groups according to the RAT time. There was no significant difference in sprint times, but RAT of the fast group was significantly faster than that of the slow group. Before and after COD of RAT, the fast group had made a deceleration quickly by high-step frequency. In the COD movement, the fast group performed the movement with their body …

Elite Bmx Cyclists Use Individual Strategies For A Successful Start, Ina Janssen, Annelies Oude Alink, Finn Frielink

ISBS Proceedings Archive

A fast start during BMX racing is strongly related to superior performance. The purpose of this study was to identify which aspects of starting technique were related to a further distance after 1 second, an indication of an advantageous starting position. Significant between-cyclists differences were found in set position kinematics and starting technique. Whilst each cyclist had specific aspects of the start related to superior performance, two of the cyclists had strong correlations with vertical velocity of the bicycle at gate drop and at 1 second, indicating the higher the wheel was lifted, the further the distance reached after 1 …

Determination Of The Optimal Number Of Rigid-Body Segments To Represent The Trunk Using Akaike’S Information Criterion, Shoma Kudo, Masahiro Fujimoto, Takahiko Sato, Akinori Nagano

ISBS Proceedings Archive

The purpose of this study was to determine the optimal number of rigid body segments to sufficiently represent the trunk movements, using Akaike’s information criterion. The trunk in static and dynamic conditions was modelled with one, two, three, or six linked rigid-body representations. The difference in the three-dimensional position between the actual and modelled data was calculated to quantify how well these models describe the actual trunk kinematics. The Akaike’s information criterion was calculated using the difference in position data to evaluate the goodness-of-fit for each model. Our findings suggest that two-linked rigid-body representation may be good enough when analysing …

Self-Organising Map Analysis Of Rugby Placekicking Biomechanics, Kim Hébert-Losier, Christopher Martyn Beaven, Peter Lamb

ISBS Proceedings Archive

Our aim was to use a self-organising map (SOM) to examine key biomechanical variables previously identified to discriminate best from worst placekicking attempts. Placekicker and ball 3D biomechanics were acquired from three competitive placekickers who performed 10 kicks outdoors, 35-m from the posts. Seven key variables were extracted for SOM analysis and kicks were categorised into "best", "typical", and "worst" for each placekicker based on kick outcomes and player and coach ratings. SOM output indicated that three clusters best explained intra-cluster similarities and inter-cluster differences. The three clusters highlighted differences between the biomechanical variables of the three placekickers rather than …

Influence Of Trunk Model Dof On Shoulder Kinematics In Javelin Throwing - A Case Study, Karen Roemer, Hans-Peter Koehler, Maren Witt

ISBS Proceedings Archive

A case study was conducted to clarify the influence of different body-models and modelling approaches on shoulder joint kinematics. Therefore, a single subject performed a javelin throw. The recorded movement was analyzed using two different modeling approaches using two different body models each. Results from the two different body models are highly comparable, while comparability of model approach specific results depend on the movement direction. Source of the difference between movement directions may be the model specific location of center of rotation in the shoulder joint.

Variability In Vertical Jump Height And Lower Limb Kinematics Between Days, Rodrigo Bini, Lakshmi Jayalath, Daniel Wundersitz, Marcos De Noronha

ISBS Proceedings Archive

The purpose of this study was to determine the variability of lower limb range of motion (ROM) during vertical jumps using inertial-based systems. Ten participants attended three laboratorial session to familiarise with the countermovement jump (session 1) and to perform three maximum countermovement jumps (session 2 and 3). Motion from the lower limbs and pelvis were tracked using an inertial-based system and sagittal plane ROM computed for the hip, knee and ankle joints. ROM was compared between sessions using t-test, typical error and effect sizes. Moderate effect sizes were observed with differences in angular data varying from12° for similar heights …

Effect Of Leg Stiffness During Rebound Jump On Sprint Running Kinematics And Kinetics, Yasushi Kariyama, Kodayu Zushi

ISBS Proceedings Archive

We investigated the relationship between stiffness in rebound jump (RJ) and kinematics and kinetics of the support- and swing-leg in sprint running (SP). We included 13 male track and field athletes performing maximal effort SP and RJ. During the support phase, kinematics, kinetic, and leg stiffness parameters were calculated using a force platform and data from a high-speed video camera that recorded movement in the sagittal plane. A significant correlation was observed between SP and RJ for stiffness (r = 0.683). In SP, stiffness was significantly correlated with contact time (r = -0.659), mean joint torque at the ankle …

Ankle Joint Complex Kinematic And Kinetic Adaptation During Thirty-Minutes Of Treadmill Running: A Case Study, Sydni Wilhoite Ms, Li Li, Jessica Mutchler, Barry Munkasy

ISBS Proceedings Archive

The purpose of this study was to assess kinematic and kinetic adaptation during a 30 min run. It was hypothesized that kinematics and kinetics would adapt at different rates. A recreationally trained runner with approximately 10 years of running experience was recruited for the study. Three dimensional kinematic and kinetic variables were assessed during a 30 min run. All measures exhibited varied adaptation trends with most measures not stabilizing during the exercise period. A longer running period may be needed in running gait analysis to produce a more comprehensive adaptation profile.

Variability In The Step Characteristics Of International-Level Sprinters During The Acceleration Phase, Ross Tugwood, Neil Bezodis, Ian Bezodis, Paul Worsfold, Benke Blomkvist

ISBS Proceedings Archive

This study investigated within-session and across-season variability in step characteristics during maximal effort sprint accelerations of internationally competitive sprinters (n = 7) during training. Kinematic data were collected across multiple sessions over the training season. Of each adjacent four-step interval, steps 1-4 showed the highest absolute variation for step frequency, contact and flight time across the cohort, within-session. Across the season, the variability in each kinematic measure (relative to season mean) was specific to the individual, and no single technique variable fluctuated consistently with velocity. Athletes may benefit from being exposed to a variety of situational and environmental constraints that …

Force And Power Outputs Of Trunk-Twist During Bar Twist Exercise -Influence Of Length And Mass Of Bars-, Kazutaka Takahashi, Takuya Yoshida, Takeshi Asai

ISBS Proceedings Archive

The purpose of this study was to investigate force and power outputs during bar twist exercises using barbell shafts, considering various moment of inertia (MOI), corresponding to changes in the bar length and mass. Twenty-one male college athletes performed the bar twist exercise using five barbell shafts: one normal barbell shaft, two long barbell shafts (with changes only in the length), and two heavy barbell shafts (with changes only in the mass). Kinematic and kinetic data were recorded using the Vicon system (250 Hz) and two force platforms (1,000 Hz). The results obtained in this study revealed that: (1) Peak …

Analyzing Vertical Jump And Standing Long Jump Power Ratios To Determine Lower Extremity Injury Risk Using Auroc Curves, Suzanne Konz

ISBS Proceedings Archive

The purpose of this study examined the ability to predict previous knee and thigh injuries in athletes by assessing allometrically scaled ratios of average power and peak power results from VJ (vertical jump) and SLJ (standing long jump) testing using ROC curves. The strength and conditioning testing data and medical records of 26 female NCAA-I from soccer and volleyball teams were examined. Data examined included isokinetic knee flexion and extension, VJ power, and SLJ power outputs. Previous thigh or knee injury was compared to scaled average power ratio, peak power ratio, and calculated z-scores for average power ratio and peak …

Relationship Between The Shear Elastic Modulus And Passive Force In Posterior Shoulder Capsules: A Cadaveric Study, Naoya Iida, Keigo Taniguchi, Kota Watanabe, Hiroki Miyamoto, Tatsuya Taniguchi, Toshiki Jumonji, Mineko Fujimiya, Masaki Katayose

ISBS Proceedings Archive

Although shear wave elastography (SWE) has been used to indirectly measure passive force in muscle tissues, it is unknown whether SWE can be utilized to evaluate passive force in capsule tissues. This study investigated the relationship between the shear elastic modulus and passive force in posterior shoulder capsules using SWE. Four middle and four inferior posterior shoulder capsules were dissected from four fresh-frozen cadavers. Passive force (0-400 g in 25-g increments) was applied to each capsule, and elasticity was measured simultaneously using SWE. The relationship between elasticity and passive capsule force was highly linear for all tested capsules (coefficients of …

Assessment Of Analyzing Block Start Performance Without Arm Ground Reaction Forces, Mitsuo Otsuka, Wolfgang Potthast, Steffen Willwacher, Jan Goldmann, Toshiyuki Kurihara, Tadao Isaka

ISBS Proceedings Archive

The purpose of this study was to assess the analysing reaction time (RT) and normalized power when calculated using two different methods: a method using ground reaction forces (GRFs) of only the legs (legs F-based method) and a method using GRFs of arms and legs (whole F-based method). In total, 127 block start motions from fourteen male sprinters were analysed from all participants. The RT of the legs F-based method was not similar to that of the whole F-based method: the mean difference was 7.4 ms and the 95% CI was –45.1–59.8 ms. In contrast, the normalized power of the …

The Effectiveness Of Neuromuscular Training With Augmented Feedback On Acl Injury Prevention, Hanjun Li, Hui Liu, Xin Zhang

ISBS Proceedings Archive

This study determined whether the neuromuscular training program with augmented feedback was effective in decreasing the injury rate of ACL during landing. Seventeen male and 16 female college basketball or velleyball players were randomly divided into training (4-weeks duration), or control group (no training). Kinematic data collected by 8 infrared cameras of Motion Analysis System (200 Hz) were synchronized with kinetic data from 4 Kistler force plates (9281CA) (1000 Hz). The injury prevention training only signifcantly reduced ground reaction forces in the training group (p <0.05) with no statistical difference in knee flexion angle, varus–valgus moment and internal–external rotation moment. There …

Changes In Lower Extremity Stiffness With Triathlon Specific Training, Anna Lorimer, Patria Hume, Justin Keogh

ISBS Proceedings Archive

Achilles tendon injuries are problematic for triathletes ranked as the most severe injuries in club and development athletes. As an overuse injury, Achilles tendon injures were proposed to be the result of a combination of risk factors, requiring measurements which incorporated multiple risk factors. Stiffness was identified to be a measure that was influenced by many of the risk factors for Achilles injury. In a one-year prospective study, 75 triathletes were followed to determine the association between measures of lower extremity stiffness and the risk of developing an Achilles injury. Triathletes who developed a new or reoccurring injury during the …