Active clinical trials for "Muscle Weakness"

The purpose of this project is to investigate the effect of Kinesio tape on muscle strength of the lower trapezius in people with shoulder symptoms and decreased muscle strength in the lower trapezius - a randomized controlled trial.

Peripheral muscle weakness is a predominant problem in patients with COPD and treated using exercise training in pulmonary rehabilitation. Despite pulmonary rehabilitation being an effective intervention, muscle strength impairment is a persisting problem in COPD patients. Patients have problems to tolerate the high training loads, which are necessary to develop strength. Low-load blood flow restriction training (LL-BFRT) might therefore be an option to enhance muscular response of patients with COPD to strength training. Up to now, no studies investigating LL-BFRT in respiratory diseases are available. The primary outcome of this randomized pilot study is knee extensor muscle strength. Secondary, the study will evaluate if LL-BFRT is well tolerated and feasible in COPD patients attending outpatient pulmonary rehabilitation.

The purpose of the MycarinGstudy is to evaluate the long-term safety, tolerability and long-term efficacy of rozanolixizumab in study participants with generalized myasthenia gravis (MG).

The aim of this study is to T to compare the effectiveness of producing a pelvic floor muscle contraction by different verbal instruction. Pelvic floor muscle contraction will be measured displacement of the pelvic floor when imaged on ultrasound.

The purpose of the MycarinGstudy is to demonstrate the clinical efficacy and to assess safety and tolerability of rozanolixizumab in patients with generalized myasthenia gravis (MG).

Muscle weakness or atrophy is a common condition following acute and chronic musculoskeletal injuries. Strength training is an imperative component in clinical rehabilitation of musculoskeletal injuries. Heavy exercise loads (approximately 70% of one repetition maximum) is necessary to elicit muscle hypertrophy and strength gains. However, patients with severe muscle atrophy are frequently unable to tolerate these loads due to pain. Blood flow resistance training with low resistance loads may be used to safely develop muscle strength.

While "conditioning" by exercise training has been widely evaluated, the available literature on "passive deconditioning" (i.e. forced deconditioning) is predominately limited to studies with or with almost complete mechanical and/or metabolic immobilization/sedation of the respective functional system (e.g. paralysis, bedriddenness). Vice versa, the effects of moderately long interruptions of dedicated types of exercise while maintaining everyday activity are rarely addressed. However, this topic is of high relevance, e.g. considering that breaks of health-related exercise programs due to increased family/occupational stress, vacation or temporary orthopedic limitation are rather frequent in everyday life. In the present project we aimed to determine the effects of 3 months of physical deconditioning due to COVID-19 induced lockdown after 13 month of high intensity endurance and resistance exercise in early postmenopausal women on parameters related to health and physical fitness.

Specific musculo-tendinous adaptations in children with cerebral palsy (CP) have an influence on muscle strength and consequently on functional behavior and participation. Evidence of strength training programs has been shown on level of body function but transfer to levels of activity and participation is still limited. Lack of transfer is related to lack of specificity of the training and poor overall quality of the interventions (intensity, duration, frequency and/or type). The use of functional strength exercises to assess and train strength of the lower limbs in children with CP is well implemented in the most functional children with CP (GMFCS-level I). To assess isometric strength the hand held dynamometer (HHD) can be used in clinical settings but reliability of this tool is questionable. The aim of this study is to adapt existing functional strength tests for less functional children with CP (focussing on GMFCS level II and III) and to investigate the correlation with isometric strength measurements and other functional parameters.

Stroke is one of the leading causes of serious long-term impairment. According to the estimates, 12,500 people suffer a new or recurrent ischemic stroke in Chile annually, which shows the magnitude of the problem. Motor impairment of the upper limb (UL) stands out as the principal sequel after a CVA (50% of the patients experience it), and the Constraint-Induced Movement Therapy (CIMT) is the rehabilitation approach that shows more scientific evidence today. Even though patients reach certain recuperation levels through this approach, results are still insufficient since 50-80% of the patients continue having upper limb motor impairment after completing standard rehabilitation. Because of this, it is pertinent to conduct research to explore new rehabilitation strategies to reduce the impairment indexes and to provide information for decision making based on evidence. Recent studies on functional neuroimaging propose that there is an abnormal balance in the motor cortex excitability after stroke - relative under-excitability in the affected hemisphere and over-excitability in the unaffected hemisphere (with the consequent inhibitory influence on ipsilesional regions) in stroke patient with moderate motor impairment. This imbalance in the hemispheres function would limit the possibilities of a greater recovery. Then, in order to reestablish brain balance, the investigators proposed that the early introduction of noninvasive techniques of brain stimulation, such as tDCS, to the motor rehabilitation training could promote improvement of upper limb function in patients with stroke. However, we lack studies that confirm the benefits of using these techniques, define the most appropriate protocols, and determine what patients and under which evolving stages would be the best candidates for treatment. This study aims to "compare the effectiveness of seven days of bi-hemispheric tDCS, both active and sham, combined with modified CIMT (mCIMT) in the motor and functional recovery of the hemiparetic upper limb in hospitalized patients with subacute unihemispheric stroke at Hospital Clínico de la Universidad de Chile and Hospital San José". This comparison responds to the hypothesis that patients who receive bi-hemispheric and active tDCS combined with mCIMT (experimental group) get at least 30% more recovery of the paretic upper limb compared to the control group who receive sham bi-hemispheric tDCS plus mCIMT after a protocol of seven days treatment.

Anterior cruciate ligament (ACL) injuries constitute a significant portion of major knee joint injuries sustained by young, active individuals, and significantly increase risk for long-term disability. Yet the recommended solution to restore joint stability following injury--ACL reconstruction (ACLR)--does not prevent post-traumatic knee osteoarthritis (PTOA). Post-traumatic quadriceps (dys)function is a hallmark characteristic following ACLR, reported to accelerate the onset of PTOA after ACL injury, making the recovery of muscle function a primary concern to clinicians. However, hamstrings muscle function is drastically underrepresented relative to the quadriceps in the context of recovery from ACLR, which impedes the ability to develop targeted treatment approaches. Persistent hamstrings weakness is widely reported in patients who undergo ACLR with a hamstring tendon (HT) autograft, which increases ACL strain, and may contribute to higher graft failure rates in this population. To effectively treat muscular impairments, underlying neuromuscular adaptations known to occur in response to ACLR must be targeted. Eccentric exercise is uniquely suited to enhance neuromuscular function. The Nordic hamstring exercise (NHE) is a specific form of eccentric exercise that is clinically relevant and easy to implement, but has not been explored as an intervention for hamstrings neuromuscular dysfunction in patients who undergo ACLR with HT. To establish an evidence-based treatment model, the investigators will use a single-blind, randomized controlled clinical trial to establish the feasibility and efficacy of a 4-week NHE protocol in patients who undergo ACLR with HT. Separate factorial ANOVAs will be used to assess the effects of group (NHE, control) and time (baseline, 4 weeks) on selected outcomes. Effect sizes will be calculated for within- and between-group comparisons. The investigators expect to observe improvements in hamstrings neuromuscular function following the NHE protocol, and that those improvements will be greater than the control group. Additionally, the investigators expect the protocol to be feasible in terms of intervention adherence and patient retention. This study will identify specific barriers to the implementation of NHE in patients who undergo ACLR with HT, and will provide support for the application of an easy to implement clinical intervention able to address a complex neurophysiological problem.