scholarly journals Four-week of local electromyostimulaiton training on fingerboard increases the isokinetic wrist strength and endurance

2020 ◽  
Vol 24 (3) ◽  
pp. 127-134
Author(s):  
Dicle Aras ◽  
Selçuk Gül ◽  
Fırat Akça ◽  
Mehmet Gülü ◽  
Özkan Güler ◽  
...  
Keyword(s):  
Body Weight ◽  
Physical Therapy ◽  
Essential Role ◽  
Average Power ◽  
Peak Torque ◽  
Muscular Fitness ◽  
Physically Active ◽  
Left Wrist ◽  
Before And After ◽  
Flexion And Extension

Background and Study Aim: Electromyostimulaiton (EMS) has been used for both physical therapy and strength improvements for a few decades. This study aimed to investigate the effects of a four-week local-EMS training performed on a fingerboard (FT) in wrist strength and endurance. Material and Methods:  Sixteen physically active, non-climber students were divided into EMS+FT and FT groups. Each group performed the same training program about 25 min a day, 3 days a week for four weeks. The EMS+FT implementation was performed with a signal width of 260 ms and a frequency of 60 Hz. Before and after training, isokinetic measurements were collected. The parameters used in the research during flexion and extension at 60 and 180°/sec were; Peak Torque (PT), Peak Torque/Body Weight (PT/BW), and Average Power (AP). Results: The EMS+FT group showed statistically significant alterations in all of the parameters (p<0.01 and p<0.05) except in the left wrist AP during flexion and extension at 180°/sec. However, the FT group showed significant changes in only wright wrist AP during extension at 60°/sec, and wright and left wrist AP during flexion at 180°/sec, and left wrist PT during extension at 180°/sec. Conclusions: Accordingly, it could be inferred that FT done by using EMS for four weeks improve the isokinetic wrist strength and endurance significantly. Muscular fitness has an essential role in climbing performance, and this study points that EMS trainings on fingerboard could be used to enhance the climbing performance.

scholarly journals The effects of phosphocreatine disodium salts plus blueberry extract supplementation on muscular strength, power, and endurance

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
John Paul V. Anders ◽  
Tyler J. Neltner ◽  
Robert W. Smith ◽  
Joshua L. Keller ◽  
Terry J. Housh ◽  
...  
Keyword(s):  
Placebo Group ◽  
Exercise Performance ◽  
Muscular Strength ◽  
Minimal Important Difference ◽  
Average Power ◽  
Creatine Supplementation ◽  
Peak Torque ◽  
Before And After ◽  
Group A ◽  
Percent Decline

Abstract Background Numerous studies have demonstrated the efficacy of creatine supplementation for improvements in exercise performance. Few studies, however, have examined the effects of phosphocreatine supplementation on exercise performance. Furthermore, while polyphenols have antioxidant and anti-inflammatory properties, little is known regarding the influence of polyphenol supplementation on muscular strength, power, and endurance. Thus, the purpose of the present study was to compare the effects of 28 days of supplementation with phosphocreatine disodium salts plus blueberry extract (PCDSB), creatine monohydrate (CM), and placebo on measures of muscular strength, power, and endurance. Methods Thirty-three men were randomly assigned to consume either PCDSB, CM, or placebo for 28 days. Peak torque (PT), average power (AP), and percent decline for peak torque (PT%) and average power (AP%) were assessed from a fatigue test consisting of 50 maximal, unilateral, isokinetic leg extensions at 180°·s− 1 before and after the 28 days of supplementation. Individual responses were assessed to examine the proportion of subjects that exceeded a minimal important difference (MID). Results The results demonstrated significant (p < 0.05) improvements in PT for the PCDSB and CM groups from pre- (99.90 ± 22.47 N·m and 99.95 ± 22.50 N·m, respectively) to post-supplementation (119.22 ± 29.87 N·m and 111.97 ± 24.50 N·m, respectively), but no significant (p = 0.112) change for the placebo group. The PCDSB and CM groups also exhibited significant improvements in AP from pre- (140.18 ± 32.08 W and 143.42 ± 33.84 W, respectively) to post-supplementation (170.12 ± 42.68 W and 159.78 ± 31.20 W, respectively), but no significant (p = 0.279) change for the placebo group. A significantly (p < 0.05) greater proportion of subjects in the PCDSB group exceeded the MID for PT compared to the placebo group, but there were no significant (p > 0.05) differences in the proportion of subjects exceeding the MID between the CM and placebo groups or between the CM and PCDSB groups. Conclusions These findings indicated that for the group mean responses, 28 days of supplementation with both PCDSB and CM resulted in increases in PT and AP. The PCDSB, however, may have an advantage over CM when compared to the placebo group for the proportion of individuals that respond favorably to supplementation with meaningful increases in muscular strength.

scholarly journals Pelvic floor muscle training decreases hip adductors isometric peak torque in incontinent women: an exploratory study

2013 ◽  
Vol 26 (1) ◽  
pp. 183-190 ◽  
Author(s):  
Grasiéla Nascimento Correia ◽  
Cristine Homsi Jorge Ferreira ◽  
Mariana Chaves Aveiro ◽  
Vanessa Santos Pereira ◽  
Patricia Driusso
Keyword(s):  
Urinary Incontinence ◽  
Pelvic Floor ◽  
Exploratory Study ◽  
Pelvic Floor Muscle ◽  
Peak Torque ◽  
Physically Active ◽  
Pad Test ◽  
Digital Evaluation ◽  
Before And After ◽  
Dominant Side

INTRODUCTION: The pelvic floor muscle (PFM) training is the most common treatment for urinary incontinence (UI), however many women performed the contraction of PFM with associated contraction of abdominal, gluteus and hip adductors muscles. OBJECTIVE: To assess the effects of pelvic floor muscle (PFM) training on isometric and isokinetic hip adductors peak torque (PT) among women suffering from urinary incontinence (UI). MATERIALS AND METHODS: It is a longitudinal and prospective exploratory study. This study included 15 physically active women aged 45 years old and over, who presented complaints of UI. The PFM function (digital evaluation and perineometry), isometric and isokinetic hip adductors PT and one hour pad test were performed before and after treatment. The PFM training was performed in group, one hour once a week for 12 sessions. RESULTS: Significant improvement of PFM function and pressure level (p = 0.003), and significant decrease of hip adductors isometric PT and one-hour pad test, were found post-treatment. Moderate negative correlations between PFM contraction pressure and hip adductors isokinetic PT for dominant side (DS) (r = -0.62; p = 0.03) and non-dominant side (NDS) (r = -0.64; p = 0.02); and between PFM fast fibers contraction and hip adductors isometric PT for DS (r = -0.60; p = 0.03) and NDS (r = -0.59; p = 0.04) were also found. CONCLUSIONS: The PFM training decreased hip adductors PT and improved PFM functions and UI.

scholarly journals Isokinetic evaluation of knee muscles in soccer players: discriminant analysis

2015 ◽  
Vol 21 (5) ◽  
pp. 364-368 ◽  
Author(s):  
Bruno Fles Mazuquin ◽  
Ligia Maxwell Pereira ◽  
Josilainne Marcelino Dias ◽  
João Pedro Batista Junior ◽  
Mônica Angélica Cardoso Silva ◽  
...  
Keyword(s):  
Human Performance ◽  
Average Power ◽  
Peak Torque ◽  
Knee Extension ◽  
Soccer Players ◽  
Total Work ◽  
Wilks Lambda ◽  
Discriminant Analyses ◽  
Definition Of ◽  
Flexion And Extension

ABSTRACT Introduction: Muscle activity in soccer players can be measured by isokinetic dynamometer, which is a reliable tool for assessing human performance. Objectives: To perform isokinetic analyses and to determine which variables differentiate the under-17 (U17) soccer category from the professional (PRO). Methods: Thirty four players were assessed (n=17 for each category). The isokinetic variables used for the knee extension-flexion analysis were: peak torque (Nm), total work (J), average power (W), angle of peak torque (deg.), agonist/ antagonist ratio (%), measured for three velocities (60°/s, 120°/s and 300°/s), with each series containing five repetitions. Three Wilks' Lambda discriminant analyses were performed, to identify which variables were more significant for the definition of each of the categories. Results: The discriminative variables at 60°/s in the PRO category were: extension peak torque, flexion total work, extension average power and agonist/antagonist ratio; and for the U17s were: extension total work, flexion peak torque and flexion average power. At 120°/s for the PRO category the discriminant variables were: flexion peak torque and extension average power; for the U17s they were: extension total work and flexion average power. Finally at 300°/s, the variables found in the PRO and U17 categories respectively were: extension average power and extension total work. Conclusion: Isokinetic variables for flexion and extension knee muscles were able to significantly discriminate between PRO and U17 soccer players.

scholarly journals Comparison of the Effect of Different Physical Therapy Methods on Lumbopelvic Stability among People with Low Back Pain

2020 ◽  
Vol 2 (11) ◽  
Author(s):  
Justė Knatauskaitė
Keyword(s):  
Body Weight ◽  
Low Back Pain ◽  
Back Pain ◽  
Physical Therapy ◽  
Chronic Low Back Pain ◽  
Stability Control ◽  
Low Back ◽  
Performance Capacity ◽  
Elastic Resistance ◽  
Before And After

Research background. The majority of persons suffer from low back pain and prevalence of it seeks about 84%. Chronic low back pain is the second cause for people to go to their general practitioner. Many studies are done about treatment of chronic low back pain; however, complaints about back pain are increasing. Therefore we are going to find out which of the three our applied methods is the best for treating low back pain. The aim of the study was to compare the impact of different physical therapy methods on lumbopelvic stability control among people with chronic low back pain. Methods. 30 people with low back pain were participating in this study. Following factors were estimated before and after eight physical therapy sessions: intensity of pain by using the scale of numbers (SAS); lumbopelvic stability control by using “Stabilizer” pressure biofeedback unit; functional motions performance capacity by doing functional tasks. Results. Statistically significant changes were not found after the evaluation of lumbopelvic stability control under the method of Redcord sliding suspension system, elastic resistance and body weight exercises before and after physical therapy sessions. Statistically significant correlations were found between lumbopelvic stability control and pain intensity in those groups where people were training under the methods of elastic resistance and body weight exercises (p < 0.05). Statistically significant correlations were found between lumbopelvic stability control and functional motions performance capacity in those groups where people were training under the methods of Redcord sliding suspension system and body weight exercises (p < 0.05). Conclusion: statistically significant change was not found between three intervention groups after physical therapy; therefore neither of three methods applied in this study was better than the others.Keywords: chronic low back pain, lumbopelvic stability control, functional movement performance capacity, physical therapy.

scholarly journals KNEE BIOMECHANICS AND PHYSICAL PERFORMANCE;

2017 ◽  
Vol 24 (12) ◽  
pp. 1921-1926
Author(s):  
Hafiz Muhammad Manan Haider Khan ◽  
Tahir Masood
Keyword(s):  
Body Weight ◽  
Physical Performance ◽  
Martial Arts ◽  
Average Power ◽  
Weight Ratio ◽  
Peak Torque ◽  
Knee Biomechanics ◽  
Performance Tests ◽  
Total Work ◽  
Body Weight Ratio

Introduction: A 29-year old male athlete (body mass: 64 kg; height: 172 cm)sustained complete ACL rupture of the right knee. He was a martial-arts player and the injurywas repetitive, overuse in nature due to cyclic unilateral loading and unloading of the rightknee during training sessions. Rupture was diagnosed through detailed patient history, clinicalphysical examination and was confirmed through magnetic resonance imaging (MRI) of theright knee. Surgical reconstruction of the ACL was planned and a patellar tendon graft wasused. His baseline isokinetic data was recorded 4 months after the surgery. Objective: Thiscase study describes the effects of isokinetic strength training on knee biomechanics andphysical function of an ACL-reconstructed martial-arts athlete. Setting: Pakistan Sports BoardIslamabad. Study period: 40 days. Materials and Methods: Biodex System 3 Pro was used totrain the athlete for 15 sessions on alternate day basis. Average peak torque, average power,total work and peak torque to body weight ratio were recorded for hamstring and quadricepsbefore and after isokinetic rehabilitation. The athlete was positioned in the dynamometer withupright back while hip and knee were flexed to 90 degrees. Unilateral isokinetic contractionswere performed according to a premeditated exercise protocol. Both hamstring and quadricepswere tested isokinetically at five different movement speeds (30deg/sec, 90deg/sec, 150deg/sec, 210deg/sec, and 270deg/sec). Five contractions were performed at each speed duringboth knee flexion and extension. At baseline, average peak torque was higher at lower speedsfor both hamstring and quadriceps. Results: As a result of rehabilitation, average peak torquefor hamstring and quadriceps significantly improved at speeds of 150deg/sec and 90deg/secrespectively. Average power, peak torque to body weight ratio, total work was also improved forboth hamstring and quadriceps. Two physical performance tests - agility run test and verticaljump test - were used to assess the effects of training and both performance tests improved 51%and 100% respectively. Conclusion: Isokinetic training improved the strength of quadricepsand hamstring after ACL reconstruction. Hamstring muscle demonstrated greater traininginducedincrements in torque production compared to quadriceps at all contraction velocities.

scholarly journals COMPARAÇÃO DO PICO DE TORQUE ISOCINÉTICO CONCÊNTRICO EM INDIVÍDUOS ATIVOS COM E SEM A APLICAÇÃO DE BANDAGEM ELÁSTICA FUNCIONAL

2015 ◽  
Vol 13 ◽  
pp. 270
Author(s):  
Jéssica Kirsch Micheletti ◽  
Sérgio Luiz Rodrigues De Souza ◽  
Ana Flávia Spadaccini Silva ◽  
Rinaldo Bernardelli Junior ◽  
Berlis Ribeiro dos Santos Menossi
Keyword(s):  
Muscle Function ◽  
Knee Flexion ◽  
Functional Performance ◽  
Peak Torque ◽  
Muscle Performance ◽  
Isokinetic Dynamometer ◽  
Physically Active ◽  
Kinesio Taping ◽  
Isokinetic Evaluation ◽  
Flexion And Extension

Introduction: Physically active individuals constantly seek resources that can improve their muscle performance, avoid the appearance of lesions and even relapses. Kinesio Taping has been used for both treatment/prevention of injury and to improve functional performance. The isokinetic dynamometer enables rapid quantitative analysis of many parameters of muscle function, being the peak torque the most representative in research and clinical practice. Objective: To compare the concentric peak torque isokinetic in active individuals with and without the application of kinesio taping. Method: 10 male volunteers were evaluated and submitted to the IPAQ questionnaire, where they were considered actives. Then, were realized isokinetic evaluations into steps: Phase Control (without application of elastic taping) and Phase Bandage (with application of placebo and original bandage). The same protocol isokinetic repetitions of 5 to 60 ° / s knee flexion and extension was adopted in all the stages for the reliability and reproducibility of the data. Results: The application of taping in physically active individuals in isokinetic evaluation did not increase the concentric peak torque at 60 °/s. Conclusion: Was observed reliability and reproducibility of the results, however, no significant differences were observed in concentric peak torque isokinetic of the quadriceps of active individuals with and without the application of the original kinesio taping and placebo.

Evaluation of Dexmedetomidine Dosing in Obese Critically Ill Patients

2021 ◽  
pp. 089719002110215
Author(s):  
Sara A. Atyia ◽  
Keaton S. Smetana ◽  
Minh C. Tong ◽  
Molly J. Thompson ◽  
Kari M. Cape ◽  
...  
Keyword(s):  
Body Weight ◽  
Critically Ill ◽  
Critically Ill Patients ◽  
Statistical Difference ◽  
Ideal Body Weight ◽  
Weight Percentage ◽  
Before And After ◽  
Light Sedation ◽  
Icu Sedation ◽  
Dose Dependent

Background: Dexmedetomidine is a highly selective α2-adrenoreceptor agonist that produces dose-dependent sedation, anxiolysis, and analgesia without respiratory depression. Due to these ideal sedative properties, there has been increased interest in utilizing dexmedetomidine as a first-line sedative for critically ill patients requiring light sedation. Objective: To evaluate the ability to achieve goal intensive care unit (ICU) sedation before and after an institutional change of dosing from actual (ABW) to adjusted (AdjBW) body weight in obese patients on dexmedetomidine. Methods: This study included patients ≥ 18 years old, admitted to a surgical or medical ICU, required dexmedetomidine for at least 8 hours as a single continuous infusion sedative, and weighed ≥ 120% of ideal body weight. Percentage of RASS measurements within goal range (−1 to +1) during the first 48 hours after initiation of dexmedetomidine as the sole sedative agent or until discontinuation dosed on ABW compared to AdjBW was evaluated. Results: 100 patients were included in the ABW cohort and 100 in the AdjBW cohort. The median dosing weight was significantly higher in the ABW group (95.9 [78.9-119.5] vs 82.2 [72.1-89.8] kg; p = 0.001). There was no statistical difference in percent of RASS measurements in goal range (61.5% vs 69.6%, p = 0.267) in patients that received dexmedetomidine dosed based on ABW versus AdjBW. Conclusion: Dosing dexmedetomidine using AdjBW in obese critically ill patients for ongoing ICU sedation resulted in no statistical difference in the percent of RASS measurements within goal when compared to ABW dosing. Further studies are warranted.

scholarly journals Effect of Integrated Neuromuscular Exercise in Physical Education Class on Health-Related Fitness in Female Children

Healthcare ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 312
Author(s):  
Marijana Sinđić ◽  
Draženka Mačak ◽  
Nikola Todorović ◽  
Bianka Purda ◽  
Maja Batez
Keyword(s):  
Physical Education ◽  
Muscular Fitness ◽  
Female Children ◽  
Before And After ◽  
Health Related ◽  
The Republic ◽  
Almost All ◽  
And Control ◽  
Cardiorespiratory Endurance ◽  
Health Related Fitness

Integrated neuromuscular training (INT) showed benefits for improving fundamental movement skills (FMS). However, the INT health-related fitness (HRF) effects are lacking. The current study aimed to determine the effects of INT implemented during physical education (PE) in a primary school in the Republic of Serbia on HRF in female children. The sample consisted of 72 healthy girls who were divided into the intervention (EG: n = 37; mean ± SD: age = 8.17 ± 0.31) and control (CG: n = 35; age = 8.11 ± 0.31) groups. The EG and CG performed the INT program and traditional PE activities two times per week within the first ~15 min of PE class, respectively. The Fitnessgram battery tests assessed the HRF (body composition, cardiorespiratory endurance, muscular fitness, and flexibility) before and after the program. After eight weeks, the EG significantly reduced all fat measures, while the CG decreased only triceps skinfold but to a smaller extent (F = 5.92, p < 0.02, ŋ2 = 0.09). Both groups significantly improved the performance of almost all muscular fitness tests (curl-ups, trunk lift, push-ups); however, the EG increased the push-ups more than the CG (F = 9.01, p < 0.01, ŋ2 = 0.14). The EG additionally improved the modified pull-ups (F = 14.09, p < 0.01, ŋ2 = 0.19) and flexed arm hang (F = 28.82, p < 0.01, ŋ2 = 0.33) tests. The flexibility and cardiorespiratory endurance of both groups did not significantly change after eight weeks. This approach of exercise showed positive acceptance and relatively good results after only eight weeks.

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