Effects Of Eccentric Exercise Research Articles

Effects of Eccentric Exercise on Work-Related Performance and Physical Activity Levels in Rheumatoid Arthritis Patients

Effects of Eccentric Exercise on Work-Related Performance and Physical Activity Levels in Rheumatoid Arthritis Patients

Effect of eccentric exercise and shock wave therapy in patients with Achilles tendinopathy – a review of the literature

Aim of study. The purpose of this study was to evaluate the effectiveness of training using eccentric exercises and shock wave therapy in people with Achilles tendinopathy. Material and methods. The available literature was analyzed based on English-language databases PubMed, Scopus, ScienceDirect, Medline and others, using the Google Scholar search engine. Twenty articles were analyzed out of 120 retrieved by the above method. Publications published up to 24/09/2023 were used, using the following keywords: Achilles tendinopathy, physiotherapy, shock wave, Alfredson protocol, eccentric exercises. Results: After analyzing the papers, it was noted that eccentric exercises based on the Alfredson protocol are effective in the treatment of Achilles tendinopathy. Shock wave therapy appears to be a mostly safe and effective form of treatment. Conclusions. Contemporary research indicates that conservative treatment methods in the form of eccentric exercises and shock wave therapy appear to be effective in the treatment of Achilles tendinopathy. Although studies on the effectiveness of using shock wave therapy are of low quality for the most part, it appears to be a safe and effective form of treatment for Achilles tendinopathy.

The Effects Of Eccentric Exercise In Elderly Patients With Chronic Kidney Diseases

The Effects Of Eccentric Exercise In Elderly Patients With Chronic Kidney Diseases

Effects of Eccentric Exercise on NF-κB Activation in Blood Mononuclear Cells-RETRACTION.

Effects of Eccentric Exercise on NF-κB Activation in Blood Mononuclear Cells-RETRACTION.

EFEITOS DO TREINAMENTO EXCÊNTRICO SOBRE O EQUILÍBRIO DOS ATLETAS

ABSTRACT Introduction: Basketball is a sport of skillful competition. It demands characteristics from its athletes such as agility, balance, and a confrontational spirit. This requires a great improvement in strength, speed, endurance, and physical conditioning. Objective: Study the effects of eccentric muscle strength training in the lower limbs on balance ability in basketball players. Methods: Current scientific literature was used to design an experimental method with statistical data analysis. The research subjects were divided into 4 groups for a 6-week eccentric training intervention, and the effect of eccentric exercise on flexibility and balance in basketball players was investigated. Results: Compared to the pre-test and after the training intervention in the test group, there was a very significant difference (P<0.01); only the intervention group showed a significant difference (P<0.05). Conclusion: Eccentric training at the end of basketball training has a positive effect on improving flexibility and balance in basketball players. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

Effectiveness of Eccentric Exercises Along with Conventional Physiotherapy in Patellar Fracture

Fractures of the patella are often reported in individuals with multiple injuries. It comprises 2.8% of all fractures,[1] most of which are middle-aged and employed adult population. Various studies have revealed that all fractures have resulted from high-energy blow or trauma of direct compressive and indirect forces caused due to industrial accidents which often involve the articulating surfaces along with the soft tissue.[2] Various literature reviews have focused to manage patellar fractures with open reduction internal fixation. Most patellar fractures require Kirschner wire, and anterior tension band screws as the patella have a mechanical advantage over quadriceps muscle which increases its leverage.[3] Despite the rigid fixation, there is loss of knee range of motion and stiffness postoperatively due to the fibrosis in the healing phase. Knee stiffness involves the severe restriction of the flexion, extension and knee joint pain along with muscle atrophy.[4] Several studies have reported the problems like knee effusion, pain, and quadriceps atrophy postoperatively which should be paid attention to.
 Several rehabilitation guidelines are available for postoperative knee stiffness but none of the guidelines is universally accepted. No guideline discusses and concludes the specific rehabilitation technique[5] but indeed is suggestive mention of a common goal. As per the standard exercise, prescription protocol guidelines are considered for specific mode intensity, repetition, and duration of exercises followed during formulating the exercise programme.

The effects of eccentric exercise on passive hamstring muscle stiffness: Comparison of shear-wave elastography and passive knee torque outcomes.

The aim of our study was to assess eccentric-exercise-induced changes in passive knee joint torque, passive knee joint stiffness and shear modulus at of the hamstring muscles. We hypothesized that eccentric exercise would elicit an increase in all outcomes. Fourteen healthy volunteers (age = 25.5±4.7 years) performed eccentric exercise protocol. Before and after 0h, 1h, 24h and 48h, we measured the shear modulus of hamstring muscles using shear-wave elastography and passive knee joint stiffness on isokinetic dynamometer. After eccentric exercise, the shear modulus of biceps femoris increased after 0h (22.4 ± 34.1 %; p = 0.021) and for semitendinosus after 0h (14.5 ± 4.9 %), 1h (16.2 ± 6.5 %) and 24h (16.6 ± 8.3 %) (p = 0.005-0.015). There were no changes for semimembranosus and no changes in passive knee joint moment measures. There were also no correlations between the two methods. Eccentric exercise increased shear modulus of hamstring muscles, while passive joint torque was not affected. This suggests that shear-wave elastography could be more sensitive than torque measures to intra-muscular changes induced by eccentric exercise.

The Effect of Eccentric vs. Traditional Resistance Exercise on Muscle Strength, Body Composition, and Functional Performance in Older Adults: A Systematic Review With Meta-Analysis

The effects of eccentric exercise (ECC) in older adults have received limited scientific attention, considering the ample evidence for its effectiveness in general and athletic populations. The purpose of this paper is to review the effects of ECC exercise modalities vs. traditional or concentric (CON) exercise on muscle strength, body composition and functional performance in older adults. Inclusion criteria regarding the age was >55 years. Three major scientific literature databases (PubMed, Scopus and Web of Science) were screened for trials comparing the effect of ECC and CON exercise programs, and 19 papers were included in the meta-analysis. ECC and CON training programs were typically matched by the duration of each session. The difference between ECC and CON was expressed as standardized mean difference (SMD). Regarding isometric knee strength, the pooled effect favored ECC (SMD = 0.50), but was not statistically significant (p = 0.160). ECC exercise elicited greater improvements in timed up and go test (SMD = −0.68; p = 0.004), 2-min sit-stand test (SMD = 0.53; p = 0.030) and 30-s sit-stand test (SMD = 0.81; p = 0.002), but not in 6-min walking test (SMD = 0.01; p = 0.960). The effects on body composition and muscle architecture were unclear (SMD = −1.44 to 1.95; p = 0.060–0.689). In conclusion, our literature review indicates that ECC exercise is superior to, or at least as good as CON exercise for preserving health and overall function in older adults.

Effectiveness of Eccentric Exercise in The Rehabilitation of Post-Immobilization Stiffness of Wrist: A Case Study

Post-immobilization deficiency in wrist motion is a common complication following distal radius fractures and it interferes with daily life activities. The wrist and the hand play a vital role in the manipulation grasping and releasing of objects. Achieving a functional range of motion and adequate muscle power to perform daily activities remains a challenge for therapists involved in rehabilitation. The present case is a 27-year-old electrician who visited our outpatient physiotherapy department with wrist joint stiffness. He had a history of falls and sustained a distal radius fracture on his right forearm and was operated on with a buttress plate and screws 2 months ago. In this case study an eccentric exercise-based rehabilitation program was prescribed in addition to conventional wrist and hand rehabilitation. An eccentric exercise program is modified and progressed according to the patientrsquos tolerance. Pain range of motion muscle strength of wrist and disability of the arm shoulder and hand score were used as outcome measures. Following two weeks of the eccentricbased rehabilitation program the patient achieved improvement in wrist motions and disability of the arm shoulder and hand score results. The eccentric exercise program is effective in improving wrist range motion muscle power and hand function following stiffness.

Effects of Eccentric Exercise on Muscle Architecture in Adults: A Systematic Review

Effects of Eccentric Exercise on Muscle Architecture in Adults: A Systematic Review

Effects of eccentric exercises on improving ankle dorsiflexion in soccer players

PurposeThe purpose of this study was to determine the effect of targeted eccentric calf muscle exercises compared to regular training on ankle dorsiflexion in healthy adolescent soccer players with a decreased ankle dorsiflexion.MethodsMale adolescent players (aged 14–21 years) from two professional soccer clubs were evaluated with the Weight Bearing Dorsiflexion Lunge Test (WBDLT) at baseline and after 12 weeks of this prospective controlled study. One club served as the control group and the other as the intervention group. Players with decreased ankle dorsiflexion (WBDLT) ≤ 10 cm) performed stretching and eccentric calf muscle exercises three times per week next to regular training in the intervention group, and performed only regular training in the control group. Primary outcome was the between-group difference in change in WBDLT between baseline and 12 weeks.ResultsOf 107 eligible players, 47(44 %) had a decreased ankle dorsiflexion. The WBDLT (± standard deviation) increased in the intervention group from 7.1 (± 1.8) to 7.4 (± 2.4) cm (95 % Confidence Interval (CI)[-0.493 to 1.108], p = 0.381) and in the control group from 6.1 (± 2.4) to 8.2 (± 2.9) cm (95 % CI [1.313 to 2.659], p < 0.001). The difference in change of WBDLT between both groups was statistically significant (95 % CI [-2.742 to -0.510], p = 0.005).ConclusionsTargeted eccentric calf muscle exercises do not increase ankle dorsiflexion in healthy adolescent soccer players. Compared to regular training, eccentric exercises even resulted in a decreased calf muscle flexibility.Trial registrationThis trial was registered retrospectively on the 7th of September 2016 in The Netherlands Trial Register (ID number: 6044).

To Compare the Effect of Eccentric Exercise Vs Concentric Exercise when Combined with Wobble Board Exercise on Propriception of Knee Joint after Inducing Fatigue in Quadriceps Muscle

Background: Proprioception, as the perception of positions and movements of the body segments in relationto each other, without the aid of vision, touch or the organs of equilibrium1,6.Objective: The main objective of this study is to focus on the difference between the effect of eccentricexercise vs concentric exercise when combined with wobble board exercise on proprioception of knee jointafter inducing fatigue in quadriceps muscle.Study Design: Experimental Study.Methods: In this experimental studytotal 40 subjects were selected by convenient sampling and divided intotwo groups. Subjects of both groups were selected according to Inclusion/Exclusion criteria and informedconsent were taken from all subjects and methodological protocol was introduced and applied to subjectsand statistical analysis is done with the help of unpaired-t test.Results: There were significant differences seen in that eccentric and concentric exercises with wobbleboard exercise are very effective in improving proprioception. But eccentric exercise with wobble boardexercise has better effect in improving proprioception.Conclusion: It is concluded that fatigue decreases the proprioception and eccentric exercise with wobbleboard exercise give better result to improve proprioception.

Effects of Eccentric Exercise on Skeletal Muscle Injury: From An Ultrastructure Aspect: A Review

The contraction of skeletal muscle (SM) plays an important role in providing power for the body to participate in physical activities. Nevertheless, unaccustomed motions, especially eccentric exercises (EE), might cause changes in ultrastructure and mitochondria of SM, increasing potential risks of injuries. The objective of this narrative literature review was to summarize the effects of EE on SM ultrastructure. The results found that EE may lead to changes in the ultrastructure of SM, including the ambiguity of each line and band in the sarcomere, vacuolar degeneration of mitochondria, swelling of the sarcoplasmic reticulum, and disordered arrangement of myofibrils. At the same time, EE also leads to redistribution of SM mitochondria, changes in dynamics, and mitochondrial autophagy. This review provides additional insight into further research on the influence of EE on injuries of SM.

Effect of eccentric exercise on quality of life and function in people with chronic heart failure: a pilot randomised controlled trial

Purpose To determine if eccentric exercise was effective, safe and feasible in increasing function and quality of life in people with heart failure compared to usual care and a waitlist control group. Methods A prospective, three-armed, parallel-design, assessor-blind, pilot randomised controlled trial with 1:1:1 allocation. Forty-seven participants (16 female; mean age 66 years) with mild to moderate heart failure were randomly allocated to either eccentric exercise, concentric exercise or a waitlist control group. Participants in the exercise groups completed twice-weekly exercise for eight weeks. Primary outcome was walking capacity. Secondary outcomes were quality of life, leg strength and fatigue. Outcomes were assessed at baseline, post intervention and three-month follow-up. Attendance, tolerability and adverse events were used to determine safety and feasibility. Results Intention-to-treat analysis showed no differences between eccentric exercise and either concentric exercise or waitlist for any outcome. Per-protocol analysis found improvements identified by the Minnesota living with heart failure questionnaire were significantly greater post-intervention for eccentric exercise compared to concentric exercise (−17.99 units, 95% confidence interval −35.96 to −0.01). No major adverse events were reported. Conclusion In this small trial, eccentric exercise did not demonstrate superior outcomes to concentric exercise or a waitlist control group. Clinical trial registration The protocol for this trial was registered at clinicaltrials.gov, registration number: NCT02223624, registration date: 22 August 2014. IMPLICATIONS FOR REHABILITATION Regular physical activity and referral to rehabilitation is recommended for people with chronic heart failure, however exercise can be challenging for this group. Eccentric exercise was safe and tolerable for participants with heart failure. Documentation of exercise progression is important to demonstrate a dose–response relationship. In this study there were no differences between groups who received eccentric exercise, concentric exercise or no exercise.

Effects of eccentric exercise on the quadriceps architecture

To determine the muscle architecture adaptations in the vastus lateralis (VL) and vastus medialis (VM) after an eccentric training programme based on the Reverse Nordic Hamstring Exercise (RNHE) and after a subsequent detraining period. The participants ( N = 28) underwent a 12-week intervention, consisting of one week of assessment and familiarisation, followed by seven weeks of eccentric training and four weeks of detraining. The VL and VM muscle architecture features were assessed in resting conditions by means of 2D ultrasonography before (week 1) and after (week 8) the training period, as well as after the detraining period (week 12). Significant increases in the VL and VM muscle fascicle length (FL) ( t = − 5.06, d = 1.43, P < 0.05 and t = − 11.14, d = 3.09, P < 0.001, respectively), muscle thickness (MT) ( t = − 5.0, d = 1.39, P < 0.05 and t = − 6.17, d = 1.71, P < 0.05) and pennation angle (PA) ( t = − 6.77, d = 1.88, P < 0.05 and t = − 4.48, d = 1.25, P < 0.05) were observed after the training period. The FL, MT and PA showed a significant decrease after the detraining period. The results provide evidence that an eccentric training programme based on the RNHE may lead to changes in the VL and VM muscle architecture features, which are reversible after a four-week detraining period. Déterminer les adaptations de l’architecture musculaire de la vastus lateralis (VL) et vastus medialis (VM) après un programme d’entraînement excentrique basé sur le jarret nordique inversé (JNI) et après une période de formation ultérieure. Les participants ( n = 28) ont subi une intervention de 12 semaines comprenant une semaine d’évaluation et de familiarisation, suivie de sept semaines de formation excentrique et de quatre semaines de formation. Les caractéristiques de l’architecture musculaire de la LV et de la VM ont été évaluées au repos au moyen d’une échographie 2D avant (semaine 1) et après (semaine 8) la période d’entraînement, ainsi qu’après la période d’entraînement (semaine 12). Augmentations significatives de la longueur du fascicule musculaire VL et VM (FL) ( t = − 5,06, d = 1,43, p < 0,05 et t = − 11,14, d = 3,09, p < 0,001, respectivement), de l’épaisseur musculaire (MT) = − 5,0, d = 1,39, p < 0,05 et t = − 6,17, d = 1,71, p < 0,05) et l’angle de pennation (PA) ( t = − 6,77, d = 1,88, p < 0,05 et t = − 4,48, d = 1,25, p < 0,05) ont été observés après la période d’entraînement. Le FL, le MT et le PA ont montré une diminution significative après la période de détrainage. Les résultats démontrent qu’un programme d’entraînement excentrique basé sur le RNHE peut entraîner des modifications des caractéristiques de l’architecture musculaire de la LV et de la VM, qui sont réversibles après une période de formation de quatre semaines.

Effectiveness of Eccentric Exercise for the Management of Rotator Cuff Tendinopathy: A Critical Review

The rotator cuff (RC) mainly contains four muscles and their tendons: infraspinatus, supraspinatus, teres minor and the subscapularis..

The Effect of Eccentric Exercise with Variations in Rest Interval on Creatine Kinase and Lactate Dehydrogenase Enzymes in Sedentary Young Men

The Effect of Eccentric Exercise with Variations in Rest Interval on Creatine Kinase and Lactate Dehydrogenase Enzymes in Sedentary Young Men

Effectiveness of combined eccentric and concentric exercise over traditional cardiac exercise rehabilitation programme in patients with chronic heart failure: protocol for a randomised controlled study

IntroductionExercise-based rehabilitation is a standard feature of chronic heart failure management. The effectiveness of eccentric exercise could offer new opportunities for better tailoring rehabilitation programme to patients’ limitations. The goal...

Force and Electromyographic Responses of the Biceps Brachii after Eccentric Exercise in Athletes and Non-Athletes.

The aim of this study was to compare skeletal muscle response to elbow flexors eccentric exercise in athletes and non-athletes. A set of eccentric (ECC) exercises was performed in a group of 12 athletes and 12 non-athlete controls. Maximal isometric force, electromyographic (EMG) activity of the biceps brachii and the resting elbow angle were assessed before, immediately, 48 hours, 5 and 10 days after high-intensity ECC exercises. During the set of the ECC exercises each participant performed 25 eccentric contractions of elbow flexors. Each contraction consisted of lowering a dumbbell from the flexed (elbow joint angle: to the extended elbow (elbow joint angle: position. The weight of the dumbbell was set at 80% of one-repetition maximum (1RM). The ECC contractions caused a decrease in maximal isometric force in both groups. The variable dropped by 8% in non-athletes and by 24% in athletes. Furthermore, the EMG RMS increased significantly only for non-athletes 10 days after the ECC exercise compared to baseline values. The present study showed different effects of ECC exercise on force and EMG in athletes and non-athletes, indicating a more pronounced force response in athletes and electromyographic response in non-athletes.

Effects of eccentric exercise in pressure pain threshold in subjects with functional ankle equinus condition

Stretching exercises are widely used by the population before sporting activities. One of the most common technique is eccentric exercise. Here, we made a clinical examination of 98 subjects with equinus condition before activity and after 30 min of running (49 participants with previous eccentric exercise and 49 with no previously eccentric exercise). The clinical assessment of the Achilles tendon was based on the pressure pain threshold (PPT). We identified significant PPT changes between the previous eccentric stretching and the non-previous eccentric stretching group in the Achilles tendon evaluations. Based on our findings, we propose that subjects with equinus condition could use eccentric stretching in order to improve the Achilles tendon status.