View clinical trials related to Muscle Strain.
Filter by:The goal of this interventional study is to compare muscle reflex function under settings of normoxia (normal oxygen level), acute hypoxia (brief oxygen-lack) and chronic hypoxia (long-duration exposure to oxygen-lack). The main question is: Does the muscle reflex adapt to chronic hypoxia? Young, healthy participants will complete light-to-high intensity cycling exercise with and without suppression of the muscle reflex. Suppression of the muscle reflex will be via spinal administration of the opioid Fentanyl. In the control condition, saline will be administered into the spinal space. Participants will complete control (saline) and experimental (Fentanyl) exercise conditions at sea-level (Kelowna, BC, Canada) breathing room air and whilst breathing a lower fraction of oxygen (acute hypoxia). Thereafter, participants will complete the exercise test after living at high altitude (White Mountain, CA, USA) for 2 weeks whilst breathing room air (chronic hypoxia) and breathing a higher fraction of oxygen (restored normoxia).
In this investigation, participants perform simulated occupational work during which the task performance will be logged. This research investigates the effect of peripheral fatigue and a passive shoulder exoskeleton on the task performance.
The aim of this study is to evaluate the relationship between intrinsic capacity and healthy eating in elderly individuals.
A total genotype risk score was generated based on the findings of previous research for non-contact injury, non-contact muscle injury, tendon injury, ligament injury, fracture injury and apophysitis injury. This score was then compared with the incidence of injury between those with high, medium and low risk scores for each injury. The influence of different rates of growth, stages of physical maturation and loading exposure were then also included in the risk model to see if any interaction effects could be observed between genetic risk score and susceptibility to injury in different categories of growth, maturation and loading exposure.
The investigators postulate that there is a difference in the acquisition of Fundamental Laparoscopic Skills (FLS) between general surgical and Obstetrics & Gynaecology (O&G) trainees. This discrepancy is also likely to influence the musculoskeletal and cognitive fatigue trainees experience within both specialties. Additionally there is likely to be a discrepancy in the expectations of consultants and trainees on skills perceived to be important at the completion of training (CCT). This study aims to compare and evaluate the discrepancy in FLS acquisition amongst O&G and GS trainees in order to identify areas for improvements in the training pathway, the associated fatigue experience and highlight the expectations perceived to be required at the completion of training.
This is an observational analytical study of prevalent cases and controls.
Scleroderma (or Systemic Sclerosis - SSc) is one of the most neglected diseases worldwide, according to the World Health Organization. In the adult population with SS, the systemic effects of the disease, such as respiratory and peripheral muscle dysfunction, cause a decrease in quality of life. As a consequence, there is a concern about functional rehabilitation, since the aging of this population is already a reality. Thus, the objective of this project is to evaluate the effects of functional rehabilitation on functional capacity and quality of life in women over 18 years of SS. In this longitudinal intervention study, patients will be submitted to a three-month rehabilitation program. Before and after the intervention, patients will be submitted to the following assessments: Cochin Hand Functional Scale (CHFS), Short-Form 36 Health Survey (SF-36); Scleroderma Health Assessment Questionnaire Disability Index (SHAQ-DI); lung function; lung ultrasound; handgrip; Glittre Activities of Daily Living test. Thus, it is expected that patients with SS will benefit significantly, with a consequent improvement in musculoskeletal function and , functional capacity and health-related quality of life.
The functional condition of the leg muscles is not only relevant to performance in sports, but is also of great importance in health, prevention and rehabilitation, where not only the general strength level is decisive but also the relationship between individual muscle groups. Among other things the H-Q-ratio (strength ratio of "hamstring" muscles to quadriceps muscles) is often used to diagnose possible imbalances. Isokinetic force measurements have established themselves as the gold standard in competitive football. In this context, however, force tests in the open kinetic chain (OKC) have almost exclusively been used so far. Especially force measurements in the closed kinetic chain (CKC) could have a higher relevance regarding functionality. The H-Q-ratio should better be called the flex-ext-ratio in the CKC due to the involvement of the hip muscles. There is little data in the literature on leg force or flex-ext-ratio in CKC. In particular, there is hardly any comparative data for isokinetic measurement systems in the CKC. Using a cross over design and randomly allocating 28 competitive football players into two groups (n=14 each) that either started tests with the leg press or legcurl device, the investigators assumed (1) a significantly lower flex-ext-ratio in the CKC compared to the OKC, (2) a correlation between the isokinetic measurement systems in the OKC and the CKC, and (3) a significant superiority of the leg press to predict functional performance of the lower limbs.
The aim of the study (OVERACT_V1) is to verify if the isometric contraction of ankle plantarflexor and Hamstring muscles, induces a significant reduction of overactive bladder symptoms in patients with Multiple sclerosis.
Firstly, the investigators aim to study the biochemical, structural and functional changes associated with acute muscle strain injury in the acute phase and during rehabilitation in vivo. Specific factors present after the injury and their effects on connective tissue cells will be examined in vitro. Secondly, the investigators will investigate individuals with chronic pain, scar tissue and inferior function after a previous muscle strain injury and test a specific rehabilitation program to alleviate pain and disabilities associated with the preceding muscle injury. The investigators have the following hypotheses: 1. Humoral growth factors and pro-inflammatory macrophages released into the injured area post strain injury stimulate formation of connective tissue in vitro. 2. Early onset of rehabilitation will be superior to a delayed start of rehabilitation for the healing process, in regards to structural improvement of tissue and better clinical function. 3. Scar tissue following a muscle strain injury is characterized by disorganized structure of connective tissue. 4. Mechanical loading in the form of heavy eccentric muscle activity for 12 weeks will lead to a local re-modeling of scar tissue, and result in improved function and reduced symptoms in patients with chronic pain and impaired function after a previous muscle injury.