View clinical trials related to Strength.
Filter by:BACKGROUNDː The reverse nordic hamstring exercise is developed for the eccentric work of the rectus femoris. After performing Nordic exercise protocol (its original), the relationship between increased eccentric hamstring strength, improvements in sprint capacity and reduced incidence of injuries can be confirmed. The review of evidence, led us propose the relationship and the possible benefits that could exist in the performance of four weeks of reverse nordic exercise protocol and the vertical jump, measured with countermovement jump test (CMJ) on a platform of jump. METHODSː An open randomized controlled trial was conducted, with an intervention and control group, to which they were randomly assigned. The sample was made of 19 players from the San Antonio de Murcia Catholic University Team in the youth A category, aged between 16 and 18 years old. The experimental group (n=10) performed the reverse nordic hamstring exercise protocol for four weeks, in addition to the usual training that they shared with the control group (n=9). Data collection for the CMJ test was done before starting the protocol and immediately after finishing it for all participants. Statistical analysis was carried out with the SPSS program.
The goal of this intervention study is to determine if omega-3 fatty acid supplementation as compared to placebo improves performance in track and field athletes. The main questions it aims to answer are: 1. Can performance be improved 2. Can strength be enhanced 3. Will positive body composition changes occur (lean vs fat mass) 4. Will feelings of muscle soreness be diminished Participants will take either omega-3 fatty acid supplements or placebo and continue with their sport specific training regimen. Researchers will compare the supplement group to placebo group to determine if there are any significant differences.
The objective of the study was to compare analytic, functional and mixed (analytic/functional) methods in strengthening rotator cuff and scapular stabilizers muscles. For that purpose, participants had to follow a strengthening program 3 times a week during 8 weeks.
The objective of the study is the validate and to assess the reliability of a modified version of the Athetic Shoulder Test. The activity of peri-scapular muscles during the realization of the test will be assessed too.
Standing, stooping and crouching are considered important physical demands of the work, which are among the 20 physical work demands defined in the Dictionary of Occupational Titles(1, 2). Agricultural workers, underground miners, aircraft baggage handlers, plumbers, mechanics and many other workers adopt these postures(3-7). These postures are also used in daily activities such as gardening, shopping andcleaning(8).Standing describes an upright position without moving(2). Maintaining this position requires sustained musclea ctivity in various muscles of the body known as the antigravity muscles(9). Stooping consists of bending the torso forward and down with the legs in a relatively straight position. Crouching is an activity performed with the flexion of the hip, knee and ankle while the trunk is in a vertical position. During stooping, the lower back and posterior leg muscles are stretched. Crouching involves similar length changes, particularly in the quadriceps and ankle plantar flexor muscles, as a result of significant flexion in the knee and ankle joints.Unlike standing, as the hip and knee joints are fully flexed during crouching, activation of the quadriceps and calf muscles is potentially required to support lower extremities and weight transfer between limbs(10). Consideration of the flexibility defined as the maximum range of motion, and the muscular strength associated with the amount of external force a muscle can exert(11, 12), may provide a different perspective to the health care professionals during the interpretation of the work or daily activities. Knowing the relationship between standing, stooping and crouching performances with the direct measurement methods such as flexibility and strength may help to make a more accurate decision during the health care assessments and guiding individuals who have difficulties in these activities to the appropriate rehabilitation program. Starting from this point of view, in this study, we aimed to evaluate the relationship between flexibility and muscular strength tests with standing, stooping and crouching performances.
Neuromuscular exercise and taping are widely used in the rehabilitation of Patellofemoral Pain. The aim of this study was to investigate the effects of corrective kinesio taping applied on patellofemoral joint and foot in addition to a progressive neuromuscular exercise program in women with Patellofemoral Pain on knee pain and muscle strength.
INTRODUCTION: Core strengthening, balance, and flexibility programs such as Pilates have been advocated to affect running mechanics and prevent lower extremity injuries positively. The purpose of this study was to assess the effects of a 12-week mat-based Pilates exercise program on dynamic knee valgus alignment in runners. METHODS: Thirty-four young male and female adults performed a running protocol at baseline. The protocol consisted of the participants running on a treadmill at a constant five miles per hour (mph) for four minutes. Post-examination, participants were randomly assigned to a Pilates or control group (n=16 and n=18, respectively). A certified Pilates instructor gave the Pilates group a 12-week home-based program. To ensure participants in the Pilates group performed exercises correctly, the Pilates instructor conducted the first session, and provided feedback to each participant. Participants in both groups performed the same running testing protocol every four weeks. Knee valgus was measured as the medial displacement of the knee joint center during the running stance phase. Repeated measures Analysis of Variance (RepANOVA) was calculated at baseline and 4-, 8-, and 12-weeks post examinations to compare knee valgus during running.
The aim of the current study, therefore, is to investigate the effects of vitamin K2 supplementation on the physiological responses to an acute bout of resistance exercise.
Impaired neck muscle strength is related to neck pain, abnormal posture, and various cervical pathologies. Clinicians, therefore require objective, reliable and valid methods for quantifying neck strength. In a previous study, the investigators developed a novel, valid, and reliable method for measuring neck retraction strength, using a handheld dynamometer (HHD), in normal, healthy individuals. The investigators are now expanding this research to study a patient population. Specifically, to describe isometric neck retraction strength in patients with neck pain and to study the effects of physical therapy (PT) on that strength. Our hypothesis is that isometric cervical retraction strength will increase over the course of treatment and that there will be an inverse relationship between strength and the Numeric Pain Rating Scale (NPRS) and Neck Disability Index (NDI).
Blood flow restricted (BFR) exercise has been shown to improve skeletal muscle adaptations to resistance exercise. BFR uses blood pressure cuffs (i.e., tourniquets) to reduce skeletal muscle blood flow during resistance exercise. One benefit of BFR is that skeletal muscle adaptations to resistance exercise training including muscle hypertrophy and increases in strength can be achieved at lower-loads (e.g., 25-30% 1RM), that are often comparable to more traditional resistance training loads (70-85% 1RM). However, the impact that low-load BFR resistance exercise has on muscle quality and bioenergetics is unknown. The present study will examine the impact of 6 weeks of low-load, single-leg resistance exercise training with or without personalized BFR on measures of muscle mass, strength, quality, and mitochondrial bioenergetics. The investigators will recruit and study up to 30, previously sedentary, healthy, college-aged adults (18-40 years). The investigators will measure muscle mass using Dual Energy X-Ray Absorptiometry and muscle strength and endurance using isokinetic testing. The investigators will normalize knee extensor strength to lower limb lean mass to quantify muscle quality. The investigators will also use near infrared spectroscopy (NIRS) to measure mitochondrial oxidative capacity in the vastus lateralis. Finally, the investigators will measure markers of systemic inflammation and markers of muscle damage using commercially available ELISA assays.