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Articles 58261 - 58290 of 1791964
Full-Text Articles in Entire DC Network
Bridging The Gap From Preschool To Primary: From Policy To Practice, Aimee O'Connor, Cóilín O’ Braonáin
Bridging The Gap From Preschool To Primary: From Policy To Practice, Aimee O'Connor, Cóilín O’ Braonáin
SURE Journal: Science Undergraduate Research Experience Journal
No abstract provided.
Editorial, Anne M. Friel, Brigid Hooban, Therese Montgomery, Anne Marie O'Brien, Cormac Quigley, Edel Mcneela, Eva Campion, James Walshe, Sinead Loughran
Editorial, Anne M. Friel, Brigid Hooban, Therese Montgomery, Anne Marie O'Brien, Cormac Quigley, Edel Mcneela, Eva Campion, James Walshe, Sinead Loughran
SURE Journal: Science Undergraduate Research Experience Journal
No abstract provided.
Index: Subject Index -12 Months Ended November 1971; Author Index -12 Months Ended November 1971, American Institute Of Certified Public Accountants
Index: Subject Index -12 Months Ended November 1971; Author Index -12 Months Ended November 1971, American Institute Of Certified Public Accountants
Tax Adviser
No abstract provided.
Tax Trends, Harry Z. Garian
Estate Planning: Analyzing Life Insurance Policies, Edward S. Schlesinger
Estate Planning: Analyzing Life Insurance Policies, Edward S. Schlesinger
Tax Adviser
No abstract provided.
The Tax Adviser, Volume 2, Number 11, November 1971, American Institute Of Certified Public Accountants
The Tax Adviser, Volume 2, Number 11, November 1971, American Institute Of Certified Public Accountants
Tax Adviser
No abstract provided.
Tax Trends, Harry Z. Garian
Form 706-Format And Problems Occasioned By Community Property, Robert L. Bean
Form 706-Format And Problems Occasioned By Community Property, Robert L. Bean
Tax Adviser
No abstract provided.
Tax Trends, Harry Z. Garian
Kinematical Analysis Of 135° Change-Of-Direction Techniques In Basketball, Raffaele Zinno, Salvatore Pinelli, Anna Jòdar-Portas, Raquel Font-Lladó, Anna Prats-Puig, Laura Bragonzoni
Kinematical Analysis Of 135° Change-Of-Direction Techniques In Basketball, Raffaele Zinno, Salvatore Pinelli, Anna Jòdar-Portas, Raquel Font-Lladó, Anna Prats-Puig, Laura Bragonzoni
ISBS Proceedings Archive
Change of direction (COD) is a crucial movement in basketball, requiring athletes to decelerate, reorient, and reaccelerate efficiently. This study aimed to identify the COD techniques naturally adopted by basketball players during a pre-planned 135° CODs, and to compare the associated lower-limb kinematics and execution time. A total of 130 basketball players performed the V-cut test while wearing inertial measurement units. From the analysis, two COD techniques emerged: Side-Step and Split-Step. Side-Step was the predominant technique (72.1%) and demonstrated significantly shorter execution time per COD (p < 0.001). Side-Step exhibited in the pivot leg greater hip flexion, knee internal rotation, and ankle dorsiflexion, while Split-Step showed higher movement variability and knee abduction. Side-Step appears to be the more efficient and stable COD strategy, offering faster COD execution.
The Effects Of The Football+ Warmup Program On Isokinetic Strength Among Youth Amateur Male Football Players, Mostafa Zarei, Mojtaba Asgari, Ebrahim Heidarnia, Seyed Hossein Yaghoobzadeh, Thomas Jaitner
The Effects Of The Football+ Warmup Program On Isokinetic Strength Among Youth Amateur Male Football Players, Mostafa Zarei, Mojtaba Asgari, Ebrahim Heidarnia, Seyed Hossein Yaghoobzadeh, Thomas Jaitner
ISBS Proceedings Archive
This study evaluated the effects of the Football+, a newly developed injury prevention program (IPP) on muscle strength, an established injury risk factor, among Iranian youth amateur football players. Two U18teams competing in Tehran division two participated in this study, underwent a baseline isokinetic dynamometry, and were assigned to either the Football+ (N=16, 17.31±0.12 age, 70.16±2.09 weight, 1.77±0.12 height) or control (N=16, 17.12±.09 age, 67.99±2.03 weight, 1.78±0.03 height) groups based on their respected teams. The intervention group performed the Football+ for 8 weeks while the control group followed its traditional warmup. The same strength assessment was performed after the intervention …
Exploring The Differences In The Prevalence Of Cam-Like Morphology By Age Group In High- And Low-Impact Sports, Ryota Yamamoto, Toshiharu Tsutsui, Wataru Sakamaki, Nodoka Ikegami, Suguru Torii
Exploring The Differences In The Prevalence Of Cam-Like Morphology By Age Group In High- And Low-Impact Sports, Ryota Yamamoto, Toshiharu Tsutsui, Wataru Sakamaki, Nodoka Ikegami, Suguru Torii
ISBS Proceedings Archive
This study investigated cam-like morphology, a condition that increases the risk of hip osteoarthritis (OA), and examined differences in hip morphology between adolescent athletes engaged in high- and low-impact sports, along with the prevalence rates by age group. Data from 577 adolescent athletes, including 354 soccer players (aged 9–15 years) and 223 runners (aged 9–18 years), were analyzed using dual X-ray absorptiometry to assess the femoral head–neck junction for cam-like morphology. The analysis revealed that at age 9, both sports groups showed flattening at the femoral head–neck junction. However, from age 10 onward, the groups diverged: soccer players exhibited more …
Effect Of Handlebar Height On Lower-Limb Biomechanics And Upper Body Kinematics In Elite Pursuit Cyclists, Daniel Williams, Marcus Dunn, Paul Worsfold, Deborah Newton, Steve H. Faulkner, Francesca D'Andrea, Jon Wheat
Effect Of Handlebar Height On Lower-Limb Biomechanics And Upper Body Kinematics In Elite Pursuit Cyclists, Daniel Williams, Marcus Dunn, Paul Worsfold, Deborah Newton, Steve H. Faulkner, Francesca D'Andrea, Jon Wheat
ISBS Proceedings Archive
The purpose of this study was to investigate the effect of handlebar height changes on upper body posture and lower-limb biomechanics in elite pursuit cyclists. Sixteen (9 male, 7 female) cyclists completed 1-minute cycling bouts with different handlebar heights (Preferred, -30 mm and +30 mm). 2D motion capture was used to record upper and lower body joint kinematics and integrated with instrumented force pedals to measure crank and lower limb joint kinetics. A general linear mixed model and repeated measures ANOVA were used to assess discrete and time-series variables. The findings indicate that elite cyclists can adapt ankle and hip …
Energy Flow Analysis During Maximal Speed Sprint Running, Shayne Vial, Kyle Wasseberger, Daniel Kadlec
Energy Flow Analysis During Maximal Speed Sprint Running, Shayne Vial, Kyle Wasseberger, Daniel Kadlec
ISBS Proceedings Archive
The purpose of this study was to determine how mechanical energy is transferred, generated, and absorbed during maximal speed sprint running in semi-elite football players. To perform the segmental power analysis, we collected 3-D kinematics and ground reaction force data during maximum speed sprinting. During late swing, the thigh, shank, and foot showed net energy outflow (negative), indicating energy transfer to the pelvis/trunk or dissipated. During the first half of stance the hip was the prime generator while the knee and ankle absorbed energy. In the second half of stance, the hip transitioned to absorbing energy while the knee and …
On The Curved Skate Path Technique Of Speed Skating, Jeroen Van Der Eb Dr. Ir., Prof. M. R. (Fred) Yeadon
On The Curved Skate Path Technique Of Speed Skating, Jeroen Van Der Eb Dr. Ir., Prof. M. R. (Fred) Yeadon
ISBS Proceedings Archive
The classical model of speed skating assumes that the skate travels in a straight line at a constant forward velocity while the sideward push-offs generate motion of the skater's centre of mass (CoM) perpendicular to the skate. However, experimental data suggest that the CoM also gains forward velocity during each stroke. This study explores the impact of the skate's curved trajectory on a skater's velocity. We hypothesized that as a skater leans inward while the skate follows a curved path, the CoM gains forward velocity. To test this, we developed a simplified model using an inverted, extendable pendulum, where the …
Comparison Of External Inversion/Eversion Moment Between Barefoot And Shod Running, Kotaro Tsutsumi, Hiroyuki Nunome Prof., Yuji Tamura, Tsuyoshi Iitake, Ryo Iwasaki
Comparison Of External Inversion/Eversion Moment Between Barefoot And Shod Running, Kotaro Tsutsumi, Hiroyuki Nunome Prof., Yuji Tamura, Tsuyoshi Iitake, Ryo Iwasaki
ISBS Proceedings Archive
We aimed to illustrate the differences in the external inversion/eversion moment between barefoot and shod running under the same foot strike pattern and to identify the contributing factors. Fifteen healthy females participated and were instructed to run while keeping their habitual foot strike pattern in barefoot and shod conditions. From the three-dimensional coordinates of running (500 Hz) and the ground reaction force (1000 Hz), the foot external eversion/inversion moments were calculated. During the stance phase of running, the shod condition exhibited a significantly larger external inversion moment than the barefoot condition. The centre of pressure trajectory shifted medially in the …
Relationship Between Swimming Velocity And Foot Kinematic Characteristics In Novice Breaststroke Swimmers, Hiroshi Suito, Keisuke Teramoto, Kazumasa Ozeki
Relationship Between Swimming Velocity And Foot Kinematic Characteristics In Novice Breaststroke Swimmers, Hiroshi Suito, Keisuke Teramoto, Kazumasa Ozeki
ISBS Proceedings Archive
The study aimed to examine the relationship between the swimming velocity (SV) and the kinematic characteristics of the foot in novice breaststroke swimmers. Six novice male swimmers participated in the study. Participants performed two prone 10 m breaststroke kick trials on a kickboard. The kicking movements were recorded with two synchronized underwater cameras, and a three-dimensional analysis of the right-side kicking motion was conducted. The results revealed that significant negative correlations were found between the SV during a single breaststroke kick cycle and both the longitudinal and lateral kick widths (r = -.943, P < 0.01; r = -.886, P < 0.05). Moreover, a significant correlation was observed between the internal rotation angle of ankle joint in the insweep phase and SV (r = .886, P < 0.05), These findings suggest …
Running-Induced Fatigue Increases Coordination Variability, Regardless Of Running Ability, Zak J.M Sheehy, Adrian R Rivadulla, Ezio Preatoni
Running-Induced Fatigue Increases Coordination Variability, Regardless Of Running Ability, Zak J.M Sheehy, Adrian R Rivadulla, Ezio Preatoni
ISBS Proceedings Archive
We examined the effect of fatigue on lower limb coordination variability (CV) and its relationship with running ability. Fifty recreational runners (♀= 25; 18-50 years) ran on a treadmill, at a speed 5% faster than their lactate threshold, until volitional exhaustion. Three-dimensional kinematic data were collected, and CV for sagittal hip-knee and knee-ankle couplings was calculated. One-dimensional repeated measures analysis via Statistical Parametric Mapping (SPM) revealed that CV increased in mid-stance and throughout swing in the final part of the run. Changes in CV were not predicted by VO2peak or 10 km performance, suggesting that the findings are …
Effects Of Lower Limb Ballistic Training On Leg Kicking And Overall Performance In Swimming: Case Study, Ayman W. Sadek, Paul Grimshaw
Effects Of Lower Limb Ballistic Training On Leg Kicking And Overall Performance In Swimming: Case Study, Ayman W. Sadek, Paul Grimshaw
ISBS Proceedings Archive
This case study aimed to investigate the effects of a lower limb ballistic training program on lower body strength, front crawl flutter kick performance, and sprint swimming performance over 50 meters in a male recreational swimmer. One participant was recruited, and completed a 6-week training program, with pre- and post-tests assessing 50 m front crawl sprint time, 25 m flutter kick sprint time, stroke length (SL), one-repetition maximum (1-RM) squat, and countermovement jump (CMJ) performance. The participant showed improvements in the swimming performance and in SL, as well as some CMJ variables. However, no inferential statistics was conducted due to …
Expertise And Coordination In Show Jumping: Investigating Lumbar Motion, Nolwenn Régnault, Agnès Olivier, Nicolas Bideau
Expertise And Coordination In Show Jumping: Investigating Lumbar Motion, Nolwenn Régnault, Agnès Olivier, Nicolas Bideau
ISBS Proceedings Archive
The objective of this study was to evaluate the influence of expertise on the coordination between the rider and their horse during the approach and reception phases in show jumping. Sixteen riders, divided into two groups (professionals, n=8; amateurs, n=8), performed a show jumping task while their movements were recorded using IMUs (XSens MVN) placed on them and on their horse’s sternum. The rider’s lumbar orientation (L3) and the horse’s sternum orientation were analysed to quantify coordination using continuous relative phase (CRP). Statistical analysis using Statistical Parametric Mapping (SPM) highlighted significant expertise-related differences at specific moments within the stride cycle. …
Immediate Effect Of Handle Use On A New Swimming Starting Block, Kazumasa Ozeki, Shummei Ichikawa, Hiroshi Suito, Shinji Sakurai
Immediate Effect Of Handle Use On A New Swimming Starting Block, Kazumasa Ozeki, Shummei Ichikawa, Hiroshi Suito, Shinji Sakurai
ISBS Proceedings Archive
The purpose of this study was to compare kinematic variables between the handle start (using a starting block equipped with handles) and the kick start (without a handle) in male competitive swimmers and assess the immediate effects of adopting the handle start. Eight high school swimmers participated. Each participant performed two trials for each start type after two practice trials. Hand-release time, block time, 15-m time, attitude angles, and horizontal velocity were measured using two video cameras. Paired two-sample t-tests and effect size analyses were conducted to compare these variables. The 15-m time was significantly longer in the handle-start …
The Effect Of (Acceleration-Deceleration) Exercise Whith Moderate Intensity In Small Spaces On The Strength Of Hamstrings In Football Players, Kamel Nettah, Abdelkader Belkheir, Rabah Seghiri, Derradji Aroussi
The Effect Of (Acceleration-Deceleration) Exercise Whith Moderate Intensity In Small Spaces On The Strength Of Hamstrings In Football Players, Kamel Nettah, Abdelkader Belkheir, Rabah Seghiri, Derradji Aroussi
ISBS Proceedings Archive
The purpose of this study is to examine the effect of acceleration-deceleration exercise in small spaces on the strength of the hamstring muscle and ideally prevent it from a possible injury. A significant number of previous studies have shown that the negative effect of exercises using acceleration and deceleration on hamstring injury is due to the maximum use of intensity. Instead, in this study we have used moderate intensity in small spaces. on The idea was that acceleration-deceleration exercises have the same mechanism of contraction(contracting and extending) with strength training despite the different way they function, and through that development …
Biomechanical Analysis Of Elite Javelin Thrower Of Pakistan, Muhammad Tahir Nazeer Dr, Muhammad Ahmad Tahir, Rabia Walee
Biomechanical Analysis Of Elite Javelin Thrower Of Pakistan, Muhammad Tahir Nazeer Dr, Muhammad Ahmad Tahir, Rabia Walee
ISBS Proceedings Archive
This study investigated the biomechanical factors influencing javelin throwing performance among elite Pakistani athletes. Eight national-level male throwers were analyzed using 3D motion capture during the 2024 National Athletics Championships. Key variables included release velocity components, approach run velocity, pull distance, and phase durations. Results showed that vertical release velocity and approach run velocity at right foot touchdown (R-on) were significantly correlated with throwing distance (r = 0.672, p < .05 and r = 0.596, p < .05, respectively). No significant correlations were observed for pull distance, step length, or phase durations. Findings suggest that elite performance relies on maximizing vertical release while maintaining sufficient horizontal speed, emphasizing the importance of individualized technical training in Pakistan’s javelin development programs.
The Effect Of Baseball Bat Diameter On Batted Ball, Hirotaka Nakashima
The Effect Of Baseball Bat Diameter On Batted Ball, Hirotaka Nakashima
ISBS Proceedings Archive
The purpose of this study was to investigate the effect of bat diameter on the batted ball characteristics in baseball. A custom-made bat swing machine swung bat horizontally and hit a ball floating in the air using wind pressure. Three bats of different diameter (6.30 cm, 5.73 cm, and 5.32 cm) were used with 30 trials per bat. Three high-speed video cameras were used to record the movements of the bat and ball near the impact and compared the batted ball characteristics. As a result, bat diameter did not appear to have a significant effect on batted balls.
Estimation Of The Ground Reaction Forces During Golf Swing Using Recurrent Neural Networks, Kanji Mori
Estimation Of The Ground Reaction Forces During Golf Swing Using Recurrent Neural Networks, Kanji Mori
ISBS Proceedings Archive
Accurate ground reaction force (GRF) measurement is essential for in-depth golf swing analysis, but force plates are costly and require complex installation. This study develops an AI-based GRF estimation method using a Bi-LSTM model. Motion capture and force plate data from 1,032 swings by 344 golfers were used to train the model, while data from 29 unseen golfers were reserved for validation to prevent overfitting. A total of 864 models were trained using cross-validation and grid search, with the best-performing model selected based on ICC. The model achieved high accuracy (ICC up to 0.983), particularly for lead foot vertical GRF. …
Development And Validation Of An Algorithm For Foot Contact Detection In High-Dynamic Movements Using Inertial Measurement Units, Margherita Mendicino, Stefano Di Paolo, José Miguel Dos Santos, Eline M. Nijmeijer, Pieter Heuvelmans, Francesco Della Villa, Alli Gokeler, Anne Benjaminse, Stefano Zaffagnini
Development And Validation Of An Algorithm For Foot Contact Detection In High-Dynamic Movements Using Inertial Measurement Units, Margherita Mendicino, Stefano Di Paolo, José Miguel Dos Santos, Eline M. Nijmeijer, Pieter Heuvelmans, Francesco Della Villa, Alli Gokeler, Anne Benjaminse, Stefano Zaffagnini
ISBS Proceedings Archive
Wearable IMUs offer a promising alternative to lab-based motion capture for sports biomechanics. Accurate foot contact detection (FCD) is crucial, yet most algorithms are validated for daily activities, leaving a gap in high-dynamic movements, such as sprints and changes of direction, which are linked to injury risk. This study (I) reviews FCD algorithms for such tasks and (II) develops a new IMU-based algorithm for detecting initial contact (IC) and toe-off (TO). The review highlighted limitations in sport-specific FCD solutions. Two algorithms using Pelvis Vertical Velocity (PVV) and Resultant Foot Acceleration (RFA) were tested on 302 trials. A hybrid approach combining …
Formation Of Coordination Among Release Parameters For The Shape Of Variability In Arrival Positions Over Practice, Ryota Matsuda, Jun Umakoshi, Arata Kimura
Formation Of Coordination Among Release Parameters For The Shape Of Variability In Arrival Positions Over Practice, Ryota Matsuda, Jun Umakoshi, Arata Kimura
ISBS Proceedings Archive
This study aims to propose a framework for analyzing coordination among release parameters in relation to the shape of variability in performance outcomes and to investigate how such coordination is formed through practice. Participants threw 60 darts toward the center of the dartboard, twice a week for 10 weeks. Intersection over Union (IoU) was used to quantify coordination for the shape of variability, and a threshold was established to define the presence of coordination. The results showed that coordination among release parameters was not necessarily developed through practice, and that such coordination may already be structured before reducing the magnitude …
Effect Of Hamstring Strength Intervention On Lower Extremity Biomechanics Of Sprinting, Shangxiao Li, Weiya Hao, Shufang Yuan
Effect Of Hamstring Strength Intervention On Lower Extremity Biomechanics Of Sprinting, Shangxiao Li, Weiya Hao, Shufang Yuan
ISBS Proceedings Archive
The purpose of this study was to examine the effects of hamstring strength intervention on the lower extremity biomechanics. Fourteen college students volunteered to participate in this study, and underwent three weekly sessions of hamstring strength intervention for eight weeks. Three-dimensional kinematic and kinetic data during a sprint test (40 m) were collected before and after the intervention. The hip flexion angle, knee flexion angle at touch down and peak knee flexion angle instant, and peak knee extension moment during stance phase showed significant decreases in the post-intervention test compared to the pre-intervention test. The hip and knee joints were …
Shoulder Kinematics Of Overhead Throwing In Male Professional And Semi-Professional Cricketers, Jordan Leondiris Mr., Janine Gray Dr., Megan Dutton Dr., Yumna Albertus Associate Prof.
Shoulder Kinematics Of Overhead Throwing In Male Professional And Semi-Professional Cricketers, Jordan Leondiris Mr., Janine Gray Dr., Megan Dutton Dr., Yumna Albertus Associate Prof.
ISBS Proceedings Archive
Throwing in sports is one of the most aggressive and vigorous actions performed by the upper extremity. The purpose of this study was to investigate overhead throwing shoulder kinematics between two different throwing approaches in cricket, throwing from a static versus dynamic position following a run-up. The study sample included twenty (N=20) male professional/semi-professional cricketers. Shoulder kinematic variables were investigated during two different throwing approaches. Dynamic throwing produced significantly greater ball velocity than static throwing. However, shoulder internal rotation velocities at ball release showed no significant differences across static versus dynamic conditions and shoulder kinematics remained largely consistent, except for …
The Effect Of Augmented Reality Glasses On Elderly And Young Adults – A Preliminary Study, Sangyup Lee, Melissa Mache, Chengtu Hsieh
The Effect Of Augmented Reality Glasses On Elderly And Young Adults – A Preliminary Study, Sangyup Lee, Melissa Mache, Chengtu Hsieh
ISBS Proceedings Archive
Falls are a major concern among older adults, often linked to gait adaptations influenced by aging and environmental factors. This study examined the effects of augmented reality (AR) glasses on gait in young and older adults under three conditions: walking without AR glasses (W/O), with AR glasses (AR), and with AR glasses while performing a cognitive task (AR + CQ). Twelve participants (six younger, six older) walked on a treadmill at their preferred speed while gait was analysed using OpenCap. Compared to younger adults, older adults exhibited shorter stride length and narrower step width under AR conditions. Younger adults showed …