Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Relationship Between Isokinetic Quadriceps And Hamstring Strength To Lower Extremity Functional Tests
Download Relationship Between Isokinetic Quadriceps And Hamstring Strength To Lower Extremity Functional Tests full books in PDF, epub, and Kindle. Read online Relationship Between Isokinetic Quadriceps And Hamstring Strength To Lower Extremity Functional Tests ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Relationship Between Isokinetic Quadriceps and Hamstring Strength to Lower Extremity Functional Tests by : Eric W. Gahan
Download or read book Relationship Between Isokinetic Quadriceps and Hamstring Strength to Lower Extremity Functional Tests written by Eric W. Gahan and published by . This book was released on 2002 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Relationship Between Isokinetic Lower Extremity Strength Testing and Three Functional Tests by : Peter J. Lisman
Download or read book The Relationship Between Isokinetic Lower Extremity Strength Testing and Three Functional Tests written by Peter J. Lisman and published by . This book was released on 2002 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relationships Between Strength, Functional Test Outcomes, and Perception of Readiness and Injury Incidence and Severity Among Collegiate-level Male and Female Gymnasts by : Eric M. Connolly
Download or read book Relationships Between Strength, Functional Test Outcomes, and Perception of Readiness and Injury Incidence and Severity Among Collegiate-level Male and Female Gymnasts written by Eric M. Connolly and published by . This book was released on 1999 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: PURPOSE: The purpose of this study was to examine the relationship between strength, functional test outcomes, and perception of readiness and injury rates and severity among intercollegiate gymnasts. SUBJECTS: Nineteen members (6 male, 13 female) of the Springfield College gymnastics teams participated in the study. The male subjects trained for an average of 10.2 + 3.6 months per year and competed 3.8 + 2.1 months per year while the female subjects trained an average of 11.5 2 1.4 months per year and competed 4.4 + 2.3 months per year. METHODS: All subjects were tested before the start of the competitive season, and prior to the occurrence of injury to obtain baseline data. A questionnaire was utilized to collect data on variables related to demographics, history of gymnastics activity, previous injuries, and current perception of readiness to compete. Subjects completed an isokinetic test of quadriceps and hamstring strength at three speeds, and three functional tests: A cocontraction test, a vertical leap test, and a single leg hop for time test. One female subject sustained an injury that resulted in the inability to participate for 3 days and as a result met the operational definition of injury. This subject was re-tested 24 hours after clearance by an athletic trainer. STATISTICAL ANALYSES: Descriptive statistics were used to obtain a demographic profile, injury history profile, and sports participation profile. Pearson product-moment correlation coefficient was used to investigate relationships between variables. Linear multiple regression analyses and the coefficients of determination were used to explain variance in isokinetic and functional test outcomes. Independent t-tests were used to identify significant differences between males and females with respect to isokinetic strength or functional test outcomes. Wilcoxon signed ranks tests were used to compare the performances of the six subjects that participated in both the first and second years of this study. RESULTS: Significant differences were found between males and females in the isokinetic tests, and all three functional tests. Strong significant positive relationships were found between the three isokinetic strength speeds. The vertical jump test showed a high positive correlation with all three isokinetic testing speeds. The cocontraction test demonstrated a significant negative correlation with all three isokinetic testing speeds. The 6- meter single leg hop test showed a significant negative correlation with the isokinetic test at 60o/sec. The Wicoxon signed ranks test showed the only significant differences in the performance of the six subjects participating in both years of the study was found in the vertical jump and cocontraction tests. The coefficients of determination showed that each functional test can explain between 22% and 49% of the variance in the isokinetic strength test. CONCLUSIONS: The combination of the three functional tests (vertical jump, 6-meter single leg hop, and cocontraction) may be an adequate substitution for isokinetic strength testing as a measure of rehabilitation status. Future research is needed to establish normative values for the functional tests in different populations as well as determining additional variables that explain the remaining variance in the isokinetic strength testing.
Book Synopsis The Relationship Between Isokinetic Peak and Average Torque Production and Three Functional Tests of the Lower Extremity by : Katherine L. Merhar
Download or read book The Relationship Between Isokinetic Peak and Average Torque Production and Three Functional Tests of the Lower Extremity written by Katherine L. Merhar and published by . This book was released on 2003 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relationship Between Isokinetic and Functional Performance Testing of the Lower Extremity by : Sharon L. Malley
Download or read book Relationship Between Isokinetic and Functional Performance Testing of the Lower Extremity written by Sharon L. Malley and published by . This book was released on 2000 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relationship Between Single-Leg Standing Balance, Isokinetic Muscle Strength, and Selected Functional Tests After Anterior Cruciate Ligament Reconstruction by : Elizabeth Sled
Download or read book Relationship Between Single-Leg Standing Balance, Isokinetic Muscle Strength, and Selected Functional Tests After Anterior Cruciate Ligament Reconstruction written by Elizabeth Sled and published by . This book was released on 1996 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relationships Between Isokinetic Strength Scores, Functional Test Measures, and Incidence of Injury in Collegiate-level Gymnastics by : Erin L. Boyle
Download or read book Relationships Between Isokinetic Strength Scores, Functional Test Measures, and Incidence of Injury in Collegiate-level Gymnastics written by Erin L. Boyle and published by . This book was released on 2001 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Gymnasts are frequently referred to physical therapy due to a high incidence of injury within the sport. Once an injury has been treated, physical therapists are faced with a lack of research enabling them to determine appropriate timeliness in returning the athlete to participation. Many therapists believe this determination, as well as injury prediction, may be made based on the evaluation of strength. Purpose: The purpose of this study was to examine the relationships between isokinetic strength scores, functional test measures, and incidence of injury in collegiate-level gymnasts. Subjects: Two Springfield College female gymnasts participated in this study. Both participants were 18 years of age, and had been competing in gymnastics for a total of 8 years. Methods: All subjects were tested in October of 2000 and January of 2001. During each testing session, each subject was instructed to complete a demographic questionnaire prior to testing. Lumbar range of motion was then assessed using the BROM IIR. Isokinetic strength testing utilizing the CybexRNorm dynamometer was performed next. Testing protocol consisted of the performance of concentric/eccentric quadriceps contractions at three angular velocities (60/second, 180/second and 300/second). Following the isokinetic strength testing, each subject performed the modified vertical power jump test, co-contraction test, and single leg 6-m hop for time test. Isokinetic testing was not conducted during the final testing session in January 2001 due to mechanical failure of the CybexRNorm unit in October 2000. Analysis: Inadequate sample size left the researchers unable to statistically analyze the gathered data as intended. Descriptive statistics were evaluated to examine measurement trends within and across each testing session. Results: Subject one showed no improvement in performance from baseline testing (October 2000) to final testing (January 2001) except during the co-contraction test, and perception of readiness to compete. Intra-trial trends demonstrated that subject one achieved better performance in later trials (trials 2 and 3) than in earlier trials (trial 1), except in measurements obtained for lumbar extension range of motion and modified vertical jump trials recorded in January, 2001. Analysis of baseline testing information showed that subject two also performed more efficiently during later trials. Due to injury, final testing data could not be gathered for subject two. Conclusion: As a result of a non-correctable mechanical failure in the CybexRNorm Dynamometer and a limited sample size, the researchers were unable to accept or reject the null hypothesis. Further research is required to establish the relationships between isokinetic strength scores, functional test measures, and incidence of injury in collegiate-level gymnasts.
Book Synopsis Inter-limb Differences in Quadriceps Strength and Voluntary Muscle Activation by : Changmin Park
Download or read book Inter-limb Differences in Quadriceps Strength and Voluntary Muscle Activation written by Changmin Park and published by . This book was released on 2011 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Context: Lower extremity neuromuscular assessment is important for detecting possible injury risk and determining return to play criteria following injury. Evaluation of isokinetic strength and voluntary activation testing are both commonly performed to detect inter-limb neuromuscular quadriceps deficits, yet it is unknown if inter-limb deficits in these two measures provide similar information regarding quadriceps function. Objective: Determine if inter-limb deficits differ between measures of isokinetic quadriceps strength and voluntary activation at 30°, 70° and 90° of knee flexion in healthy participants. Secondarily, we sought to determine the relationship between inter-limb deficits in quadriceps strength and voluntary activation. Design: Crossover. Setting: Research laboratory. Participants: Twenty-five participants (11 Males, 14 Females, age=25.08 ±4.67 years, height=172.88±7.74cm, weight=67.04±10.67kg) with no history of knee injury volunteered for the study. Interventions: Independent variables included testing measure (isokinetic strength and voluntary activation) and sex (male and female). The order in which testing measure were performed was randomly assigned. Isokinetic strength was performed at 60°/second through the full range of motion. Voluntary activation was assessed by administering a supramaximal electrical stimulus during a maximal voluntary isometric contraction at each target angle. Main Outcome Measures: Isometric quadriceps strength was determined by extracting torque measurements at 90°of knee flexion, while voluntary activation was measured via the central activation ratio. Inter-limb difference scores for each measure were expressed as an absolute value percentage of the dominant leg ((non-dominant - dominant leg)/ dominant leg). A 2x2 repeated measures analysis of variance was used to determine differences in inter-limb deficits between measures and sex. A Pearson product moment correlation was used to assess the relationship between deficits at each joint angle. An a priori level of significance was set at P
Book Synopsis Isokinetic and Functional Testing in the Quantitative Assessment of the Lower Extremity by : Timothy S. Doane
Download or read book Isokinetic and Functional Testing in the Quantitative Assessment of the Lower Extremity written by Timothy S. Doane and published by . This book was released on 1997 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rehabilitation of Sports Injuries by : G. Puddu
Download or read book Rehabilitation of Sports Injuries written by G. Puddu and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an international board of experts, this comprehensive text provides an in-depth review on the treatment and rehabilitation of the most common sports-related injuries according to the latest scientific developments in functional rehabilitation and the most clinically relevant features of pathophysiology of sports lesions. The management of acute and overuse sports lesions are classified by body area -- spine, upper and lower extremity.
Book Synopsis Relationship Between the Hamstrings to Quadriceps Strength Ratio and Endurance Exercise Performance in Trained Female Runners by : Jennifer Lynne Bossi
Download or read book Relationship Between the Hamstrings to Quadriceps Strength Ratio and Endurance Exercise Performance in Trained Female Runners written by Jennifer Lynne Bossi and published by . This book was released on 2015 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT:Even at the recreational level, runners are now seeking ways both physiolQgically and biomechanically to improve runningperformance. The current investigation was designed to determine the relationship between the hamstrings to quadriceps (H/Q)strength ratio and endurance exercise performance in trained female runners as measured by V02peak, running economy, lactatethreshold, and 10 K running time. Ten female runners (V02peak > 53 mL-1/kg-1/min) completed three exercise testing sessionsconsisting of a Modified McConnell V02peak test, isokinetic lower extremity strength test, and 10 K time trial. Blood lactate wasmeasured through capillary blood from the tip of the finger pre exercise, at every 3 min during exercise, and immediately post exerciseduring the V02peak test to determine lactate threshold. All V02peak tests were videotaped and stride rate and stride length weredetermined at 3.13 m/s, 3.58 m/s, and 4.02 m/s. No significant correlations were observed between the H/Q strength ratio at 60 0 /sand 180 0 /s and any of the performance variables. No significant correlations existed between the H/Q strength ratio at 60 0 /s and180 0 /s and stride rate and stride length at any speed. The training adaptations of endurance running could result in an increased H/Qstrength ratio. At high levels of competition, the H/Q strength ratio may not be the main determinant of performance. Since therelationship between the H/Q strength ratio and endurance running performance remains inconclusive, future research is warranted toinvestigate the functional H/Q strength ratio and performance during different running distances.
Book Synopsis Quadriceps and Hamstrings Strength Differences Between High School and Masters Level Rowers by : Sarah A. Brooker
Download or read book Quadriceps and Hamstrings Strength Differences Between High School and Masters Level Rowers written by Sarah A. Brooker and published by . This book was released on 2007 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: PURPOSE: The purpose of this study was to determine the magnitude of isokinetic strength differences between high school and masters level rowers. A secondary purpose was to determine the magnitude of isokinetic strength difference between male and female rowers. MATERIALS/METHODS: Thirteen volunteers between the ages of 15 and 54 who were members of a crew team (either high school or club) participated in this study. Subjects included both males and females and were obtained through convenience and snowball sampling methods. Inclusion criteria included: age of 60 years or younger, subjects must row 2 or more times per week during the in-season and must row 2 or more times per week or exercise at least 90 minutes per week during the off-season. Exclusion criteria included: lower extremity injury occurring within 6 months prior to data collection, lower extremity orthopedic surgery within a year prior to data collection or a serious medical condition that may place themselves or others at risk. Each subject completed a demographics/medical questionnaire and informed consent form. At the time of data collection, an investigator reviewed the forms to determine the subject's eligibility. Once cleared for participation, the subject's height, weight and blood pressure was measured. The subject completed a five-minute warm up on a cycle ergometer and stretches. The subject was then positioned on the isokinetic dynamometer and completed the testing protocol. Quadriceps and hamstrings peak torque and quadriceps/hamstring ratio was measured at angular velocities of 60, 180 and 240 degrees/second (deg/sec). Finally, the subject completed a cool down, which mimicked the warm up. RESULTS: No significant difference was found between male masters and high school subjects for hamstrings mean peak torque/body weight at 60 (t= -0.98, p=0.71), 180 (t=0.55, p=1.19) or 240 deg/sec (t=0.18, p=1.72), for quadriceps peak torque/body weight at 60 (t= -0.08, p=1.87), 180 (t=0.29, p=1.56) and 240 deg/sec (t=-0.05, p=1.92), or for quadriceps/hamstring ratio at 60 (t=0.64, p=1.08), 180 (t=1.28, p=0.47) and 240 deg/sec (t=1.06, p=0.64). Between male and female masters rowers, there was a significant difference found for hamstring mean peak torque/body weight at angular velocities of 180 (t=3.32, p=0.04) and 240 deg/sec (t=4.33, p=0.02). There was also a significant difference found for quadriceps mean peak torque/body weight at angular velocities of 180 (t=5.78, p=0.004) and 240 (t=4.82, p=O.OI) deg/sec. No significant difference was found at 60 deg/sec for either quadriceps (t=3.02, p=0.06) or hamstring (t= 2.03, p=0.20) peak torque/body weight. There was no significant difference found between male and female masters rowers for quadriceps/hamstrings ratio at 60 (t= 0.37, p=1.49), 180 (t=0.54, p=1.23) or 240 deg/sec (t=0.28, p=1.58). A post study power analysis indicated that only comparisons between males and females for quadriceps peak torque/body weight at all three speeds and hamstring peak torque/body weight at 180 and 240 degrees/sec achieved a power of 0.80 or higher. All other comparisons failed to reach a power of .80. CONCLUSIONS: The magnitude of differences varied greatly between subjects. The results of this study are consistent with the literature regarding the strength differences among men and women. Due to the small sample size of participants (along with other limitations), further research is warranted to be able to generalize the results of this study to a larger population. CLINICAL RELEVANCE: It is important for physical therapists, athletic trainers, coaches and athletes to be aware of the physiological changes with occur with age and the possible effects related to function and performance.
Download or read book Kinesiology written by Arthur Steindler and published by Charles C Thomas Pub Limited. This book was released on 1977-06-01 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Isokinetics in Human Performance by : Lee E. Brown
Download or read book Isokinetics in Human Performance written by Lee E. Brown and published by Human Kinetics. This book was released on 2000 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of Contents Contributors vii Preface ix Acknowledgments xi Credits xii Part I Foundations 1 Chapter 1 Test Interpretation 3 Chapter 2 Specificity of Training Modes 25 Chapter 3 Correlations With Athletic Performance 42 Part II Limitations 75 Chapter 4 Assessing Human Performance 77 Chapter 5 Load Range 97 Chapter 6 Three-Dimensional Mapping 122 Part III Functional Applications 147 Chapter 7 Testing and Training the Upper Extremity 149 Chapter 8 Testing and Training the Lower Extremity 171 Chapter 9 Multiple-Joint Performance Over a Velocity Spectrum 196 Chapter 10 Control of Voluntary Contraction Force 209 Chapter 11 Isokinetic Eccentric Muscle Actions 229 Chapter 12 Functional Lift Capacity 240 Chapter 13 Testing the Spine 258 Chapter 14 The Cardiovascular Effects of Isokinetic Resistance Exercise 277 Part IV Unique Populations 297 Chapter 15 Youth and Isokinetic Testing 299 Chapter 16 Aging and Isokinetic Strength 324 Chapter 17 Gender Differences in Isokinetic Strength 339 Chapter 18 Isokinetic Testing and Training in Tennis 358 Chapter 19 Assessment and Training in Baseball 378 Chapter 20 Assessment for Football: Soccer, Australian Rules, and American 407 Chapter 21 Simulated Space Flight 429 Epilogue 446 Index 447 About the Editor 457.
Book Synopsis Functional Testing in Human Performance by : Michael P. Reiman
Download or read book Functional Testing in Human Performance written by Michael P. Reiman and published by Human Kinetics. This book was released on 2009 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional Testing in Human Performance offers clinicians the first-ever compilation of information on clinical and data-based functional testing for sport, exercise, and occupational settings. This unique text serves as a primary resource for accurate assessment of individuals' functional abilities in order to develop program prescriptions to enhance their performance. Functional Testing in Human Performance is a comprehensive learning tool for novices and an essential reference for advanced clinicians. The text defines the role of function in physical performance and how it can be appropriately tested. Especially helpful for novices, the text explains testing criteria, testing terms relevant to research, and selecting the most appropriate test and testing sequence. Common testing mistakes are also presented as well as pitfalls to avoid when testing. The text also includes case studies that illustrate a variety of situations--including testing for a client recovering from a lower-extremity injury, discussing preseason testing for a large group of athletes, and presenting the study of a client in an occupational setting. These cases include detailed statistical analysis and normative data, offering clinicians the opportunity to consider the application of functional testing and implementation strategies adaptable to their specific practice setting. After laying a foundation, the text progresses to detailed testing procedures for discrete physical parameters and specific regions of the body. Tests are organized from least to most complex, and each test is presented in a step-by-step manner outlining the purpose of the test, equipment needed, testing procedure and recommendations for performing the test, interpretation of results, and the data to suggest normative values, reliability, and validity for each test. This formatting facilitates quick reference to testing information for on-the-spot use, whether in the clinic, athletic training room, gym, or job site. Throughout the text, the functional tests are accompanied by photos for visual clarity. To enhance understanding, a companion DVD features live-action demonstrations of 40 of the most advanced tests. Icons on those test pages indicate they are modeled on the DVD. In addition, the DVD may be loaded onto a computer to offer convenient print-on-demand access to reproducible forms for recording data from selected tests. Functional Testing in Human Performance offers a unique and comprehensive reference for assessment of physical activities in sport, recreation, work, and daily living. By presenting the theory and detailing the practice, this text assists clinicians in understanding and incorporating functional testing to identify their patients' or clients' limitations and enhance their performance, rehabilitation, and daily functioning.
Book Synopsis Physical Rehabilitation of the Injured Athlete by : James R. Andrews
Download or read book Physical Rehabilitation of the Injured Athlete written by James R. Andrews and published by Elsevier Health Sciences. This book was released on 2012-02-02 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physical Rehabilitation of the Injured Athlete is a medical reference book that equips you to apply today's hottest strategies in non-operative sports rehabilitation, so you can help your patients return to play as quickly and fully as possible. Send your players back to the field fast with the latest strategies in non-operative sports rehabilitation. Get balanced, dependable guidance on sports rehabilitation from a multidisciplinary author team that contributes perspectives from orthopaedics and sports medicine, athletic training, and physical therapy. Ensure effective treatment planning with a stronger emphasis on evidence-based practice. Master the latest with brand-new chapters on Developing Treatment Pathways, Biomechanical Implications in Shoulder and Knee Rehabilitation, Temporomandibular Rehabilitation, Thigh Rehabilitation, Gait Assessment, Functional Movement Assessment, and Plyometric Training Drills. Access the fully searchable text, downloadable image bank, and 9 online-only appendices at www.expertconsult.com.
Book Synopsis Hamstring and Quadriceps Injuries in Athletes by : Christopher C. Kaeding
Download or read book Hamstring and Quadriceps Injuries in Athletes written by Christopher C. Kaeding and published by Springer. This book was released on 2014-10-06 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Injuries to the hamstring and quadriceps muscles can occur in both low- and high-impact sports and as such are among the more common injuries incurred by athletes. Reviewing the relevant physiology, epidemiology, mechanisms, clinical presentation and treatment of these conditions, Hamstring and Quadriceps Injuries in Athletes covers all sports-related injuries of the thigh musculature in one place. Topics covered include mid substance injuries, acute proximal tendon avulsions and harvesting of hamstrings, as well as strains, contusions and ruptures of the quadriceps, including the use of biologic enhancing agents in healing. Chapters on rehabilitation and injury prevention present techniques to maximize recovery and minimize long-term impairment, speeding up return to play. It will be an often-used and reliable guide for sports medicine practitioners, orthopedists, physical therapists, primary care physicians, team physicians and trainers who treat the injured athlete.
