Medicine and Health Sciences Commons^™

Reliability And Concurrent Validity Of An Alternative Method Of Lateral Lumbar Range Of Motion In Athletes, Mark D. Hecimovich, Jeffrey J. Herbert

Faculty Publications

Background: Cricket bowling involves combined spinal movements of side bending and rotation and, consequently, injury to the low back is a common problem. Therefore the assessment of lumbar spine kinematics has become a routine component in preseason screening. This includes static measurement of lateral spinal flexion as asymmetrical range of motion may predispose an athlete to low back injury.

Objectives: This study examined intra-rater reliability and concurrent validity of the fingertip-to-floor distance test (FFD) when compared to a criterion range of motion measure.

Methods: Thirty-four junior-level cricket players aged 13‑16 years were recruited. Lumbar spine lateral flexion …

Concussions In Female Collegiate Diving: An Exploratory Study, Sarah Kemp

Honors Program Theses

An abundant amount of research is being put into sports-related concussions. A vast majority of the research is being done on high-contact sports such as football, ice hockey, rugby, basketball, and soccer. The purpose of this study was to examine the prevalence of concussions in women’s collegiate diving and examine the diver’s readiness to return to competitive sport. Twenty-four Division I divers from different Midwestern universities completed a survey that included prevalence questions, a checklist of symptoms that they experienced, and several questions regarding confidence to return to play. The data showed that 54.2% of the participants have had a …

Comparison Of Three Base Stealing Techniques In Division I Collegiate Baseball Players, Sean Boss

Dissertations and Theses @ UNI

The problem that baseball coaches face is which base stealing technique is most effective. The purpose of this study is to compare three base stealing techniques (crossover step (CS), jab step (JS), and drop step (DS)) on initial sprint kinematics and steal time in Division I baseball players. This paper will address the stretch shortening cycle (SSC) and its effects, the false step technique, sprinting technique, and acceleration. This research will provide coaches with the knowledge and educate them on which technique provides greater sprint speeds. The method for research was experimental, repeated measures design to determine the effects of …

Biomechanical Differences In The Weightlifting Snatch Between Successful And Unsuccessful Lifts, Jack Rummells

Dissertations and Theses @ UNI

The purpose of this study was to determine what differences exist between several kinematic variables between failed and successful attempts in the snatch lift. Six female Weightlifters at the 2015 American open were measured for kinematic variables via videotape during competition. The results show that differences existed in the angle of the shoulder at peak barbell height and the catch height, along with the amount of separation between the lifter and barbell at peak height. Significant differences were also found at the angle between the barbell and lifter center of mass. This study was a first step toward understanding the …

Differences In Landing Impulses Between The Traditional And Swing Blocking Style In Volleyball, Jana Geertruida Braakhuis

Dissertations and Theses @ UNI

Blocking is an important part in the game of volleyball. Previous research has shown that the swing blocking style leads to a greater jump height, penetration over the net and effective blocking area compared to the traditional blocking method. No available research has been found investigating the differences in landing. The purpose of this study was to examine the differences in landing impulses, landing time and vertical ground reaction forces (vGRF) between the traditional and swing blocking style in volleyball. Therefore, eight female collegiate volleyball players were filmed in high definition at 60Hz performing successful trials of both blocking styles. …