View clinical trials related to Muscle Strength.
Filter by:Background:It has been reported in previous studies that more motor units are fired with electrical stimulation than voluntary muscle contraction, and even high intensity currents provide 10-30% more contractions than voluntary muscle contraction. Objective:This study was planned to compare the effectiveness of high voltage pulsed galvanic (HVPG) stimulation, Russian current and isometric exercise on quadriceps femoris (QF) isometric muscle strength in healthy young women. Methods:Forty-six healthy young women were included in the study (mean age=21.02 ± 1.27). Before and after the training, the dominant side QF isometric muscle strength of participants was assessed with the Isokinetic Dynamometer . The peak torque and average torques of the participants were recorded after the test. The training was planned as HVPG current for the the first group (n = 16), as Russian current for the second group (n = 15) and as isometric strengthening for the third group (n = 15). All treatments were performed under physiotherapist supervision for a total of 15 sessions for 3 days a week for 5 weeks.
Investigator researched that the effect of trunk and lower extremity muscle strength on hamstring flexibility in children with Duchenne Muscular Dystrophy.
A randomized controlled pilot study evaluating the effect of occlusion training on bone density and function of the upper extremity following a biceps tenodesis.
Vitamin B12 deficiency can cause severe problems with the blood, nerves, brain and psychological well-being. Ironically, our modern methods for the control of diabetes mellitus can actually contribute to vitamin B12 deficiency. This is because the diabetic medication "metformin", low-cholesterol diets lacking in meats (a natural source of vitamin B12) and the use of powerful anti-gastric medication can all reduce the natural absorption of vitamin B12 from the diet, especially in elderly people with diabetes. There is both a high prevalence of vitamin B12 deficiencies and falls among the elderly with type 2 diabetes mellitus and the investigators hypothesize that B12 deficiency contributes directly and significantly to falls in elderly diabetics through impaired muscle strength, gait and balance. This study therefore proposes to investigate the association between vitamin B12 deficiency and fall risk among diabetic elderly patients (older than 65 years) in the polyclinic setting by assessing muscle strength, balance and walking speed. The predictors of vitamin B12, folate, homocysteine and vitamin D levels will also be explored in this study. If the hypothesis is right, this would be of public health importance & can lead to further studies that can change the way we treat diabetes by reducing falls in our elderly diabetics through the screening for, prevention and treatment of B12 deficiency.
Purpose: The purpose of this study was to determine whether whole body vibration with plyometric training has effect on physical performance parameters and balance also this study searched for if vibration support additional benefits to normal plyometric training. Methods: 24 elite basketball players divided into two group as 12 players with the mean age of 24 ± 6,96 years (Study Group) and 12 players with the mean age of 22,45 ± 5,22 years (Control Group). Plyometric training were applied to study group on whole body vibration platform for 6 weeks (2 days/week) with routine basketball training, in control group plyometric training were applied on whole body vibration platform with the similar period of time but platform had been closed. All the assessments (physical measurement, vertical and horizontal jump tests, one-repetition maximum (1-RM) half squat strength test, 20 m speed test, T agility test, sit and reach flexibility test, star excursion balance test) were applied before and after 6 weeks plyometric training for both groups.
Post-lateral thoracotomies and assisted thoracic surgery (CTVA) are the main surgical approaches for pulmonary resections. One of the counterpoints of these surgical approaches is postoperative pain, which in addition to causing ventilatory changes and reduction of lung capacities, contributes to bed rest and consequent decrease in patients' functionality. These complications increase hospitalization time and hospital costs, being determinant factors for perioperative morbidity and mortality. In order to prevent these outcomes of reduce the functional capacity of patients, new physiotherapeutic approaches have been adopted, such as the use of the cycloergometer. Recent studies show that the early use of this device brings benefits such as: improved blood circulation and venous return, increased muscle strength, improved functional capacity and reduced symptoms of dyspnea and fatigue. This study aims to compare the effect of interval training with continuous cycle ergometer training on performance in the six-minute walk test. Randomized and controlled clinical trial performed with patients submitted to elective thoracic surgery, hospitalized at the intensive care unit (ICU) and in the hospitalization unit of the Hospital Pavilhão Pereira Filho of the Santa Casa de Misericórdia Brotherhood of Porto Alegre. Participants will be randomized into three groups: control group (CG), interval exercise group (GHG) and continuous exercise group (GEC). Functional capacity assessments will be performed through the six-minute walk test (6MWT) and the chair sit and lift (TSL) test in 30 seconds, and evaluation of the clinical state of fatigue through the revised Piper-Fatigue Scale. The evaluations will be performed preoperatively and at hospital discharge.
Studies with new drugs in the treatment of heart failure (HF), such as the combination of valsartan/sacubitril, also known as LCZ696, have demonstrated important clinical impact on the morbidity and mortality outcomes in HF population. However, the effect of LCZ696 on the pathophysiological mechanisms of HF such as exercise tolerance (peak VO2) and peripheral muscle blood flow is not known. Since LCZ696 is a new drug with promising effects on the treatment of HF, the objective of the present study will be to evaluate the effect of LCZ696 in patients with HF on: 1) peak VO2, 2) 6-minute walk test, 3) peripheral muscle blood flow, 4) muscle strength, and 5) body composition.
Electrical stimulation currently has a wide range of clinical applications, being used for activities such as strengthening, pain control, edema management, or inflammation control after injury or surgery. One of the classic forms of electrotherapy is the Direct current (galvanic current), which stands out for its unique effects (polar and interpolar effects) and that are not achieved with other modalities of electrotherapy. Within these effects those activators or suppressors of nervous system activity are described. One of the applications of direct current is to produce sedation or excitation on the nervous system through longitudinal applications (longitudinal galvanization). This application technique is known as the upstream or downstream effect of the direct current or "Leduc Effect", in which it is postulated that an ascending type longitudinal galvanization has excitation effects of the central and / or peripheral nervous system. The study will evaluate the influence of the upward and downward direct current effect when performing a manual dynamometer test while monitoring by miofeedback in college students.
In the surgical intensive care unit (SICU), goals of critical care are often discussed in long-term ventilated patients around the time of extubation. Muscle weakness predicts extubation failure but formal muscle strength assessment by the Medical Research Council scale is time-consuming and not part of the daily clinical exam. In this observational study, we hypothesize that COMA measurement, routinely used by the SICU nurses, is a reliable and valid predictor for patients' SICU outcomes. This prospective observational study is carried out within a consecutively enrolled cohort of adult patients who are extubated in two SICUs at Massachusetts General Hospital, Boston.
Aging is characterized by functional losses among which, the related to mobility and balance may be highlighted. Regular physical activity, including muscle strengthening exercises, is beneficial to a healthy elderly. Thus, this study aimed to verify the influence of 8 weeks-program of lower limbs strengthening exercises in the balance and functional mobility of physically active elderly. The investigators evaluated 18 women, with ages between 61 and 80 years. Balance assessment was performed using the Functional Reach Test (FRT), Timed Up and Go (TUG) test and Romberg test in stable or unstable soil. For muscular strengthening of the lower limbs, the workload was determined by the strength reached in the eight-repetition maximum test (8RM), applying progressive load increments between training sessions conducted (50% , 60% , 70% of 8RM), with the muscle strength being reevaluated in the fourth week of training, with subsequent adjustment of the load for the subsequent training. The training took place in two weekly meetings, in 40-minute sessions, during eight weeks. Data were analyzed using the paired-t test and ANOVA with repeated measures. Among 18 evaluated elderly women, 7 completed the 8 week training proposed. Decrease in TUG time (p = 0,035) and statistically significant increase in muscle strength were observed in all muscle groups trained (quadriceps, hamstrings, adductors and abductors). FRT (p = 0.170) was not significantly different after training. Therefore, strength training proposed was efficient in improving muscle strength in the lower limbs of irregular physically active elderly, impacting positively on functional gain gait. However, the gain in muscle strength was not enough to generate significant results in static balance probably due to the type of exercise performed as well as due being limited to muscle groups of the lower limbs.