BIOMECHANICAL ASPECTS OF BADMINTON SHOE DURING A LUNGE

Athletic footwear can influence performance, injury and comfort. Badminton is a dynamic sport characterized by quick movements such as lunges, side cuts and jumps. As a result, many aspects are important for badminton footwear. Therefore, the purpose of this project was to determine biomechanical differences between newly developed badminton shoes and its competitive badminton shoes

Does the weight of basketball shoes affect speed and jumping performance?

Purpose: The objective of this study was to analyze the effect of different weights of basketball shoes on speed and jumping performance in male basketball players. Material: 20 male basketball players in two groups, as eyes open (n:10) and eyes closed (n:10) participated in the study. The two groups performed vertical jump (VJ) and 10m sprint tests with three different weights of shoes (light, 352g; medium, 510g; heavy, 637g). The data were analyzed with Friedman repeated measurements variance analysis. Results: In Vertical Jump test, jumping performance of the eyes open group (EOG) with light shoes was found to be statistically higher as 1.8% and 2.1%, respectively when compared with medium and heavy shoes (p0.005). In 10 meter (m) sprint test, 10 m sprint time of the eyes open group was found to be statistically better as 0.5% and 1.6%, respectively when compared with medium and heavy shoe performance (p<0.001). Medium weight shoe was found to be 1.2% statistically better than heavy shoes (p<0.001). In eyes closed group, light shoes affected 10m sprint performance statistically better with 1% when compared with heavy shoes (p<0.001). Conclusions: Wearing light shoes in basketball has 2.1% and 1.6% positive effect on jumping and sprint performance, respectively. It can increase basketball players' performance. Choosing light shoes will help provide both psychological and physical advantages

2015 Research & Innovation Day Program

A one day showcase of applied research, social innovation, scholarship projects and activities.https://first.fanshawec.ca/cri_cripublications/1002/thumbnail.jp

The influence of golf club shaft flex on clubhead speed

Bibliography: p. 103-10

Altering Knee Abduction Angular Impulse Using Wedged Insoles for Treatment of Patellofemoral Pain in Runners: A Six-Week Randomized Controlled Trial

<div><p>Objective</p><p>Determine if a change in internal knee abduction angular impulse (KAAI) is related to pain reduction for runners with patellofemoral pain (PFP) by comparing lateral and medial wedge insole interventions, and increased KAAI and decreased KAAI groups.</p><p>Design</p><p>Randomized controlled clinical trial (<a href="http://ClinicalTrials.gov" target="_blank">ClinicalTrials.gov</a> ID# NCT01332110).</p><p>Setting</p><p>Biomechanics laboratory and community.</p><p>Patients</p><p>Thirty-six runners with physician-diagnosed PFP enrolled in the trial, and 27 were analyzed.</p><p>Interventions</p><p>Runners with PFP were randomly assigned to either an experimental 3 mm lateral wedge or control 6 mm medial wedge group. Participants completed a biomechanical gait analysis to quantify KAAIs with their assigned insole, and then used their assigned insole for six-weeks during their regular runs. Usual pain during running was measured at baseline and at six-week follow-up using a visual analog scale. Statistical tests were performed to identify differences between wedge types, differences between biomechanical response types (i.e. increase or decrease KAAI), as well as predictors of pain reduction.</p><p>Main Outcome Measures</p><p>Percent change in KAAI relative to neutral, and % change in pain over six weeks.</p><p>Results</p><p>Clinically meaningful reductions in pain (>33%) were measured for both footwear groups; however, no significant differences between footwear groups were found (<i>p</i> = 0.697). When participants were regrouped based on KAAI change (i.e., increase or decrease), again, no significant differences in pain reduction were noted (<i>p</i> = 0.146). Interestingly, when evaluating absolute change in KAAI, a significant relationship between absolute % change in KAAI and % pain reduction was observed (<i>R</i>² = 0.21; <i>p</i> = 0.030), after adjusting for baseline pain levels.</p><p>Conclusion</p><p>The greater the absolute % change in KAAI during running, the greater the % reduction in pain over six weeks, regardless of wedge type, and whether KAAIs increased or decreased. Lateral and medial wedge insoles were similar in effectiveness for treatment of PFP.</p><p>Clinical Relevance</p><p>Altering KAAI should be a focus of future PFP research. Lateral wedges should be studied further as an alternative therapy to medial wedges for management of PFP.</p><p>Trial Registration</p><p>ClinicalTrials.gov <a href="https://clinicaltrials.gov/ct2/show/NCT01332110?term=NCT01332110" target="_blank">NCT01332110</a></p></div