Download or read book The Effect of Whole Body Vibration on Back Squat Standing Long Jump and Vertical Counter movement Jump Performance written by Barry M. Parker and published by . This book was released on 2010 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The purpose of the investigation was to examine the effects of Whole Body Vibration (WBV) on lower body strength and power as measured through estimated 1-RM back squat, standing long jump, and vertical counter-movement jump. Female (N = 9) collegiate Division III varsity softball players completed the training and testing protocol. Each subject completed 3 weeks of WBV training and 3 weeks of conventional strength training. All subjects were pretested to gather baseline values. Subjects were tested at week 4 and week 8 to measure percent change of testing values. Three 2 X 2 mixed factorial ANOVAs were computed for percent change in lower body strength and power. No significant difference (p > .05) was found between groups in percent change for standing long jump, vertical counter-movement jump, and estimated 1-RM back squat. No significant differences (p > .05) were found between groups and testing period in percent change for estimated 1-RM back squat, standing long jump, and vertical counter-movement jump.
Download or read book ACUTE EFFECTS OF WHOLE BODY VIBRATION AND UNSTABLE SURFACE TRAINING ON COUNTERMOVEMENT AND SQUAT JUMP PERFORMANCE written by Daniel L. Gregory and published by . This book was released on 2013 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: The present study was designed to examine the acute effects of unstable surface training (UST) and whole body vibration (WBV) on countermovement (CMJ) and squat jump (SJ) performance in NCAA Division III college female athletes. Subjects consisted of 20 female athletes currently performing strength and conditioning programs. Subjects random-ly completed 6 sessions of 20 body wt squats to tempo in one of three conditions (CON r UST r or WBV) followed by 4 min passive rest and three each of the CMJs and SJs. Testing was performed on non-consecutive days. Subjects were assessed for jump height (JH) r max force (F) r rate-offorce development (RFD)r max power (P) r and vertical takeoff velocity (V). Post testing r the CMJ and SJ in each condition were analyzed for eccentric utilization ratio (EUR). There was no significant interaction in the current study (p > .05) There were no significant main effects for condition (p > .05). Significant main effects (p .05) were found for JHr RFDr P r and V for jump type (CMJ SJ) In Division III female athletes UST and WBV did not improve performance on the CMJ or SJ. On an acute basis r the use of UST or WBV was not shown to be beneficial for increasing Fr RFDr P r Vr or for improving the EUR.
Download or read book A 60 Second Exposure of Whole Body Vibration Has No Effect on Muscular Strength Or Vertical Jump Height written by John D. Welch and published by . This book was released on 2016 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than 30 years, researchers have investigated the effects of whole body vibration (WBV) platforms on athletic performance. WBV is a modality in which an individual stands on a vibrating platform to obtain performance effects. Frequency and amplitude of the vibration are the commonly adjusted parameters. The use of WBV as a modality for athletes has gained traction in response to emerging evidence demonstrating significant gains in performance measures including increased jump height and muscular strength. Collective results from several studies suggest a single vibration frequency, optimal vibration frequency (OVF), exists which elicits the greatest effect on performance. However, due to large variations in methodology it remains unknown if an OVF exists and, even more importantly, how OVF for individual athletes should be determined and utilized. There is a need to further identify how various parameters (i.e., frequency or exposure time) impact OVF as a means of enhancing our understanding and utilization of OVF on performance outcomes. The purpose of this study was to determine the WBV frequency that optimizes knee extensor torque and countermovement jump height in physically active adults between 18 and 40 years of age. The central hypothesis was that a single WBV frequency (35 Hz) for optimizing knee extensor torque (KET) and countermovement jump height (CMJ) would be identified. A comparison of KET and CMJ across 1) three independently delivered whole body vibration frequencies and 2) determined if one frequency was associated with greater KET and CMJ to a greater extent than the other frequencies and a control condition. I hypothesized that one of the WBV frequencies would result in greater KET and CMJ when compared to the other frequencies and a control. Additionally, I analyzed the distribution of an individual participants increase in KET and CMJ across three different WBV frequencies. I hypothesized that a greater number of participants would exhibit a larger increase in KET and CMJ after a 60 second exposure of whole body vibration at 35 Hz. Twenty-six recreationally active adults performed pre and posttest isometric KET and CMJ after a 60 second exposure of WBV at a specific frequency. From recorded KET and CMJ height, the largest value from the trials were calculated. There were no changes in KET or CMJ after WBV treatments when compared to pretest and control values. The results suggest that a 60 second exposure of WBV has no effect on maximal KET or CMJ when coupled with a 2-hour rest period. It could be suggested that the compounding of multiple frequencies and increased exposure time within a short time period could produce an effect. To better understand if WBV affects performance, incrementally increasing exposure length with a washout period and a signal that accounts for all frequencies at once warrants being studied.
Download or read book Whole body Vibration and Its Effects on Electromechanical Delay and Vertical Jump Performance written by Deja Lee Stevenson and published by . This book was released on 2005 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to determine the effects of whole-body vibration on electromechanical delay and vertical jump performance. Twenty college aged subjects participated in 10 intervals of whole-body vibration (WBV) at a frequency of 26 Hz and amplitude of 5 mm. Each interval consisted of 60 s of WBV in a half-squat followed by 60 s of rest. After 5 intervals, subjects had 6 min of rest before the final 5 intervals. Each subject also participated in the control which included the same 10 intervals in a half-squat without the WBV. Tests were conducted to assess electromechanical delay (EMD) and vertical jump at baseline, during the 6 min rest period and immediately after the treatment and control. EMD was measured using tibial nerve stimulation and a force plate. EMD was recorded as the lag time between the initiation of gastrocnemeus stimulation and plantar flexion force production. Vertical jump was measured using a force plate and subjects2 flight time. The factorial ANOVA results showed no differences between groups, the control and WBV treatment, for both EMD (F (2, 38) = 1.385, p = 0.263) and vertical jump (F (2, 38) = 0.040, p
Download or read book Conditioning for Strength and Human Performance written by T. Jeff Chandler and published by Lippincott Williams & Wilkins. This book was released on 2008 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by leading experts in exercise science, this text offers everything athletic trainers need to train athletes for maximum performance and prepare for certification. Chapters review the basic science underlying strength training and conditioning and put science into practice with detailed instructions on testing,assessment, exercise techniques,program development, injury prevention, and rehabilitation. Case-based problem solving activities, case examples, real world application boxes, and other features engage readers in decision-making and hands-on training activities. More than 350 full-color illustrations complement the text. A bound-in CD-ROM offers in-the-gym lab assignments,quizzes, and a practical exam with video clips and multiple-choice questions.
Download or read book Comparing the Effects of Different Whole body Vibration Intensities on Vertical Jump Performance written by David M. Bazett-Jones and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Alternating Resistance Loads and Movement Velocities During Back Squat Training on Lower Body Power Gains in Females written by Shauna L. Forsyth and published by . This book was released on 2009 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The current study was designed to compare the effects of a high load, slow velocity back squat program and a low load, fast velocity back squat program on lower body power gains in females. Female subjects (N=8) were tested a total of 3 times in the back squat 1RM, standing long jump (SLJ), and vertical jump (VJ) . A cross over design was used in which subjects performed both conditions for 4 weeks with a 1 week rest period between conditions. The subjects were first tested prior to beginning either back squat group. The second test followed the completion of the first 4 weeks and the third and final test was performed after the completion of the second 4 week training group. Factorial ANOVAs were used to examine differences among load and over time for the 1RM, SLJ, and VJ. A repeated measures t-test was used to examine differences in percent changes in power and back squat 1RM. No significant interactions were found for any of the dependent variables or changes among groups (p > .05) . The researcher did find significant increases in back squat 1RM from pre to post testing regardless of training group.
Download or read book The Effects of the Front Squat and Back Squat on Vertical Jump and Lower Body Power Index of Division 1 Male Volleyball Players written by Manu Hoani Peeni and published by . This book was released on 2007 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to compare effects of the front squat and back squat on vertical jump and lower body power index of division 1 male volleyball players. Eighteen NCAA Division 1 male volleyball players volunteered for this study and were assigned either to a back squat or a front squat training program group. Subjects followed the training program for 8 weeks. Counter-movement vertical jump (CMVJ) height and lower body power index were measured at 0, 4 and 8 weeks of the study. A 2x3 factorial ANOVA revealed no significant difference in CMVJ height and power index between the training groups (p = 0.921). In addition, changes in power index over 8 weeks were not significant (p = 0.931). There was significant improvement for both groups in CMVJ height from 0 to 4 weeks (p = .001) and from 0 to 8 weeks (p = .000), but not from 4 to 8 weeks (p =.080). Both front squat and back squat strength training programs were both equally effective at enhancing CMVJ performance.
Download or read book The Influence of Six Weeks of Complex Training Employing Squats Combined with Countermovement Squat Jumps and Kettlebell Swings Combined with Countermovement Squat Jumps on Vertical Jump Performance written by Chad Ethan Smith and published by . This book was released on 2009 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to examine the effects of Complex Training on lower body power, measured by vertical jump, following a six week program. Furthermore, the project was also aimed at determining whether it matters that the first exercise in the complex set is a strength or power exercise. Thirty-six recreationally trained men and women ages twenty to twenty-nine years, from a college physical education course, were randomly assigned to three groups: squat and countermovement squat jumps, kettlebell swings and countermovement squat jumps, and a control group which did not participate in complex training throughout the six weeks. All participants were pre and post tested in vertical jump. The results reveal a statistically significant main effect difference in pre-post vertical jump measures within each group (p
Download or read book THE EFFECT OF A SIX WEEK WHOLE BODY VIBRATION TRAINING PROTOCOL ON THE PHYSICAL CAPACITIES AND FATIGABILITY OF OVERWEIGHT YOUNG FEMALE ADULTS written by Suzanne Serresse and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Acute Effects of Whole body Vibration and Heavy Resistance Exercise on Countermovement Jump written by Benjamin Hinton and published by . This book was released on 2009 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Acute Effects of Whole Body Vibration and Vertical Jump Height written by Patrick McKee and published by . This book was released on 2012 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Whole Body Vibration on Strength Gains in the Bench Press the Back Squat and the Power Clean in Division I Football Players written by Kelly Poppinga and published by . This book was released on 2011 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to determine if whole body vibration effects strength gains in the bench press, the back squat, and the power clean in division 1 football players. Thirty-one NCAA Division 1 male football players volunteered for this study and were randomly assigned to a control group (C=16) or one of two vibration groups (V1=7, V2=8). Subjects followed the training program for eight weeks. A pre-test, mid-test, and post-test one repetition max was measured at 0, 4, and 8 weeks for the bench press, the back squat, and the power clean. A 3x3 factorial ANOVA revealed varied results between the three lifts performed. In the bench press, there were no significant differences in strength gains between the three training groups (F=.616, p=.547). In addition, there was no significant interaction (F=1.05, p=3.74). There were significant differences between trials in the bench press in strength gains (F=7.570, p=.006). In the back squat, there were no significant differences in strength gains between the three training groups (F=.847, p=.440). In addition, there were no significant differences in interaction (F=1.734, p=1.83). There were significant differences between trials in the back squat in strength gains (F=17.111, p
Download or read book Numerical Methods written by Robert W. Hornbeck and published by Prentice Hall. This book was released on 1975 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a "learn by example" approach, this exploration of the fundamental tools of numerical methods covers both modern and older, well-established techniques that are well-suited to the digital-computer solution of problems in many areas of science and engineering.
Download or read book The Effect of Squat Bending Upon Various Athletic Abilities written by Edward Lee Sloniger and published by . This book was released on 1958 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Using Whole Body Vibration in Physical Therapy and Sport E Book written by Alfio Albasini and published by Elsevier Health Sciences. This book was released on 2010-01-11 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This innovative new manual demonstrates the application of vibration technology to the treatment of pathologies such as osteoporosis, osteopenia, stroke and different musculoskeletal disorders. It covers pathology on the upper and lower extremities as well as the whole spine. New treatment strategies are practically and logically presented with recommended exercises and accompanying instructions that can be applied using the vibration platforms. Rationale is given for selected vibration frequencies, amplitudes and modes for the duration and frequency of the exercise session. The manual is grounded in evidence underpinned by a thorough literature review (including a balanced view of both pros and cons) and clinical cases. The authors present clinical treatment parameters that are evidence-based and have supportive physiological rationale that is consistent with the nature of the pathology being treated. First book of its kind applying evidence-based vibration technology to physical (physiotherapy) and sport therapy practice Exercise recommendations accompanied by over 70 four-colour illustrations Indications and contra-indications in clinical practice Comprehensive literature review of evidence base and principles Written and supported by experts actively applying this technology to their practice
Download or read book The Effects of an Isometric Quarter Squat on Countermovement Jump Performance written by Mitchell Dropp and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the study was to determine if an isometric quarter squat was sufficient to elicit postactivation potentiation (PAP) in a countermovement jump (CMJ) for recreationally trained individuals (n = 22). The isometric quarter squat conditioning stimulus consisted of three sets of six second maximal voluntary contractions against a custom made apparatus. The conditioning stimulus was designed to acutely enhance CMJ performance by stimulating PAP, in turn improving indicators of CMJ performance which included eccentric rate of force development (ERFD), mean rate of force development (MRFD), peak rate of force development (PRFD), reactive strength index (RSI), and peak power (PP). CMJ performance was tested at one, five, ten, and fifteen minutes post-conditioning stimulus to identify the optimal recovery time for optimal performance. Statistical analysis was carried out using a two-way repeated measures analysis of variance (ANOVA) and no significant or meaningful change was found in ERFD, MRFD, PRFD, RSI, or PP. The overall power was small for all variables suggesting that the ability of the current study to observe an effect that might have existed was very unlikely. Effect size was also small in all variables suggesting that the change pre to post-testing was not meaningful. Some critical factors that may have contributed to the results included the individual's ability to potentiate, body positioning during conditioning stimulus, and level of conditioning of subjects.
