Search Results

You are looking at 51 - 60 of 348 items for :

Clear All
Restricted access

Jason Simmons, Nels Popp and Greg Greenhalgh

The outdoor athletic fields of Sunshine State University are in poor condition. Overuse, insufficient drainage, and a lack of human and financial resources have contributed to the fields’ deterioration. Sunshine State University’s director of athletics, Emily Rodriguez, has decided to replace the existing fields, but that decision is just the tip of the iceberg. Rodriguez now must decide on a natural or synthetic surface for the new fields. This decision is complex because cost, maintenance, durability, player safety, and player preference must all be considered. Both surfaces have their advantages and disadvantages. In the end, Rodriguez must decide which surface is right for Sunshine State University.

Restricted access

Jordan Golding, Aaron Johnson and Andrew T. Sensenig

Psychological momentum in sports is a series of high or low human performances that seem to defy statistical randomness, and instead is often attributed to a positive feedback system in the athlete’s physiology and psyche. Quantitative approaches have found some evidence of psychological momentum. We measured the throw speeds and accuracy of adult males throwing baseballs while subjecting them to verbal criticism (positive or negative). Our study of short-term momentum suggested evidence of psychological momentum only in top-performing university baseball players, and not in the lower-performing players or in nonathletes.

Restricted access

Toshimasa Yanai, Akifumi Matsuo, Akira Maeda, Hiroki Nakamoto, Mirai Mizutani, Hiroaki Kanehisa and Tetsuo Fukunaga

homeplate. Due to the short drop from the top of the mound, pitching off the mound exhibits distinct kinematic characteristics when compared with throwing from flat ground: delays in stride foot contact, 1 reduced time available for attaining key positions, 2 increased planter flexion angle of the stride

Open access

Ignacio Perez-Pozuelo, Thomas White, Kate Westgate, Katrien Wijndaele, Nicholas J. Wareham and Soren Brage

to the description of orientation-related measures of human behavior using wrist-worn accelerometry, although they have been used in thigh-worn activity monitoring ( Steeves et al., 2015 ). Pitch and roll angles are examples of well-defined, biomechanically relevant, and easy-to-interpret signal

Restricted access

Saud F. Alsubaie, Susan L. Whitney, Joseph M. Furman, Gregory F. Marchetti, Kathleen H. Sienko and Patrick J. Sparto

, moving the head in yaw or pitch directions) may be undertaken before determining the exercise prescription. To properly assess subjects’ performance during balance and vestibular exercises so that decisions can be made about progression of those exercises, the reliability of performance should be established

Restricted access

Osamu Yanagisawa, Kenta Wakamatsu and Hidenori Taniguchi

The importance of lower-extremity function in baseball pitching is well recognized. In particular, the concern with hip function of baseball pitchers has been growing recently. The hip function is involved in the motion and stability of the pelvis, weight shift from a pivot leg (leg on the same

Restricted access

Heita Goto and James A. King

variables include pitch size (area per player) ( 7 , 34 ), number of players ( 1 , 4 , 23 ), coach feedback ( 3 , 34 ), training regimen (continuous or interval) ( 9 , 24 ), rule modifications ( 21 ), use of goals and/or goalkeepers ( 10 ), and prior knowledge of exercise duration ( 12 ). Hence, many

Restricted access

Juliana Hotta Ansai, Larissa Pires de Andrade, Paulo Giusti Rossi, Theresa Helissa Nakagawa, Francisco Assis Carvalho Vale and José Rubens Rebelatto

; Higashi et al., 2008 ). The sit-to-stand subtask was detected by the minimum and maximum angular velocities of trunk in pitch axis ( Salarian et al., 2010 ). In walking forward and walking back subtasks, the first step was detected by the linear velocity of heel and fifth metatarsal marker in the roll

Restricted access

Simon A. Feros, Warren B. Young and Brendan J. O’Brien

delivery is also important. Accurate delivery refers to a ball that follows the fast bowler’s intended trajectory (line of ball flight, and length of where the ball lands on the pitch). 5 If fast bowlers can identify a batter’s technical faults, then an accurate delivery can result in a dismissal or

Restricted access

Line D. Danielsen, Rune Giske, Derek M. Peters and Rune Høigaard

play. . . . [name of the player] had an aura and was self-confident, secure, and in addition, the player was brilliant on the pitch. (lower order: confidence; Participant 2) Collectivity Orientation. A basic collective attitude and understanding emerged as crucial. The coaches highlighted the