PURPOSE: The purpose of this study was to describe psychological effects and exercise adherence during a multicomponent exercise training intervention. METHODS: A sample of 42 patients with heart failure were randomized into an exercise (INV) group (n = 22) and an attention control (AC) group (n = 20). The exercise protocol included two 12-week ...

Aim: The study compares the power outputs in concentric phase of chest presses and squats performed without and with countermovement on stable and unstable support surface, respectively. Methods: A group of 16 physical education students performed randomly in four different days 3 repetitions of: 1) barbell chest presses on the ...

This randomized controlled trial (RCT) examines the effect of a comprehensive exercise training stimulus on physiological function and mobility disability (i.e., problems walking) in individuals with MS who have walking impairment. This trial will recruit 30 persons with MS across central Illinois who have an Expanded Disability Status Scale (EDSS) ...

The purpose of the study was to examine the effects of a resistance exercise program on soccer kick biomechanics. Twenty male amateur soccer players were divided in the Experimental (EG) and the Control (CG) group, each consisting of ten players. The EG followed a 10-week resistance exercise program mainly for ...

The aim of the present study was to compare the oscillations of oxygenation in skeletal muscle between early and late phases in prolonged exercise. During prolonged exercise at 60 % of peak oxygen uptake (Vo(2)) for 60 min and at rest, oxygenated hemoglobin/myoglobin (Hb/MbO(2)) and total Hb/Mb (THb/Mb) were determined ...

PURPOSE:: Maintenance of exercise after completing phase II cardiac rehabilitation (CR) is challenging for many patients. We offered a telephone-based maintenance intervention and found improvement in exercise participation in the intervention group at 12 months post-CR discharge. We examined the effects of the intervention on psychosocial outcomes. METHODS:: The effects ...

Objective: To reanalyse a web-based intervention for physically untrained office workers with sub-acute non-specific low back pain in low back pain-related exercise behaviour terms. Design: Reanalysis of a randomized controlled trial. Setting: Occupational Preventive Medicine of University. Methods: Participants were randomized to an intervention group (proposed intervention plus standard care) ...

Resistance training-induced muscle anabolism and subsequent hypertrophy occur most rapidly during the early phase of training and become progressively slower over time. Currently, little is known about the intracellular signaling mechanisms underlying changes in the sensitivity of muscles to training stimuli. We investigated the changes in the exercise-induced phosphorylation of ...

BACKGROUND:: Little is known about rehabilitation for postthoracotomy non-small cell lung cancer (NSCLC) patients. This research uses a perceived self-efficacy-enhancing light-intensity exercise intervention targeting a priority symptom, cancer-related fatigue (CRF), for postthoracotomy NSCLC patients. This article reports on phase II of a 2-phase study. Phase I focused on initiation and ...

The impact of harboring, genetic variants or single nucleotide polymorphisms (LQT-PM) on the repolarization response during exercise and recovery is unknown. To assess the QTc interval adaptation during exercise stress testing (EST) in children with LQT polymorphisms compared to a group of age and gender matched normal controls. One hundred ...

The purpose of the present study was to investigate whether increased tendon-aponeurosis stiffness and contractile strength of the triceps surae (TS) muscle-tendon units induced by resistance training would affect running economy. Therefore, an exercise group (EG, n = 13) performed a 14-week exercise program, while the control group (CG, n ...

During 12 weeks, 18 normal dogs were fed a high-caloric diet intended to induce obesity (weight-gain phase). For the next 12weeks (weight-loss phase), all dogs were fed a diet calculated to provide maintenance needs. During this second phase, dogs were randomly assigned to three groups differing only in their exercise ...

Acute physical activity has been repeatedly shown to improve various cognitive functions. However, there have been no investigations comparing the effects of exercise during verbal encoding versus exercise prior to encoding on long-term memory performance. In this current psychoneuroendocrinological study we aim to test whether light to moderate ergometric bicycling ...

Whole body vibration (WBV) during exercise offers potential to augment the effects of basic exercises. However, to date there is limited information on the basic physiological and biomechanical effects of WBV on skeletal muscles. The aim of this study was to determine the effects of WBV (40Hz, 1.9mm synchronous vertical ...

The present study was designed to investigate whether absolute work rate (WR) affects Phase I pulmonary oxygen uptake (VO(2p)) duration during moderate-intensity (Mod) exercise, and to compare two methods for estimating Phase I VO(2p) duration (P(I-Dur)). Fourteen males (24±5 yrs) each completed 4-8 repetitions of Mod transitions from 20W to ...

While elastic resistance training, targeting the upper body is effective for strength training, the effect of elastic resistance training on lower body muscle activity remains questionable. The purpose of this study was to evaluate the EMG-angle relationship of the quadriceps muscle during 10-RM knee-extensions performed with elastic tubing and an ...

Previous studies have found decreases in arterial oxygen saturation (SaO2) to be temporally linked to reductions in power output (PO) during Time Trial exercise (TT). The purpose of this study was to determine whether pre-exercise desaturation (estimated from pulse oximetry (SpO2), via normobaric hypoxia, would change the pattern of PO ...

Physical activity has been shown to enhance circulating brain-derived neurotrophic factor (BDNF) in animals and humans. However, the exact time course and sex-specific modulation of peripheral BDNF in response to exercise are still poorly understood. We examined the kinetics of BDNF serum concentrations in response to perceived high-intensity and low-intensity ...

According to Thomas Kuhn, the scientific progress of any discipline could be distinguished by a pre-paradigm phase, a normal science phase and a revolution phase. The science advances when a scientific revolution takes place after silent period of normal science and the scientific community moves ahead to a paradigm shift. ...

BACKGROUND: Early repolarization (ER) in the inferior electrocardiogram leads is associated with idiopathic ventricular fibrillation, but the majority of subjects with ER have a benign prognosis. At present there are no risk stratifiers for asymptomatic ER. OBJECTIVE: To examine the response to ajmaline provocation and exercise in potentially high-risk subjects ...

OBJECTIVE: To evaluate and to compare the cardiorespiratory and metabolic variables at the ventilatory anaerobic threshold level (AT) and at submaximal cardiopulmonary exercise testing (CPET) in both, healthy volunteers and in patients in the early phase after acute myocardial infarction (AMI). METHOD: Twenty-six volunteers underwent a submaximal or symptom-limited cardiopulmonary ...

Background Alteration in physical work capacity of females during different phases of menstrual cycle has been reported in different populations. Pertinent data is unavailable in Eastern Indian population. Objectives The present study was aimed to determine the endurance capacity and cardiorespiratory responses during different phases of menstrual cycle in young ...

ABSTRACT: Lake, JP, Carden, PJC, and Shorter, KA. Wearing knee wraps affects mechanical output and performance characteristics of back squat exercise. J Strength Cond Res 26(10): 2844-2849, 2012-The aim of this study was to investigate the effects of wearing knee wraps on mechanical output and performance characteristics of back squat ...

We have shown that constant-load treadmill exercise in mice produces an abrupt ventilatory increase to a maximal level at exercise onset. We examined what caused this abrupt response. We measured ventilation during 30-min constant-load exercise on a treadmill, below the lactate threshold, in conscious mice. Video analysis showed that hyperpnoea ...

Abstract Untrained subjects can display diverse strength gain following an identical period of resistance exercise. In this investigation, 28 untrained males completed 16-weeks of resistance exercise, comprising 4-weeks familiarisation, and 12-weeks of heavy-load (80-85%) activity. High and low responders were identified by the Δ1RM (Δ one repetition maximum) observed following ...

ABSTRACT: Over the past 30 years, endurance volumes have increased by more than 20% among the rowing elite, therefore informed decisions about the value of weight training over other possible activities in periodized training plans for rowing, need to be made. The purpose of this study was to quantify the ...

The circadian system coordinates the temporal patterning of behavior and many underlying biological processes. In some cases, the regulated outputs of the circadian system, such as activity, may be able to feedback to alter core clock processes. In our studies, we used four wheel access conditions to manipulate the duration ...

OBJECTIVE: Paced breathing (slow, deep, diaphragmatic breathing) reduces central sympathetic activity and facilitates the relaxation response. The present study was designed to assess the feasibility of and to obtain initial efficacy estimates of two paced-breathing programs, compared with usual breathing, for the frequency and severity of hot flashes. METHODS: We ...

Changes in purine derivatives may be considered as signs of training-induced metabolic adaptations. The purpose of this study was to assess the effect of a 1-year training cycle on the response of hypoxanthine (Hx) concentration and Hx-guanine phosphoribosyltransferase (HGPRT) activity. Three groups of middle-aged male runners were examined: 11 elite ...

The onset of action of antidepressants often takes 4 to 6 weeks. The antidepressant effect of wake therapy (sleep deprivation) comes within hours but carries a risk of relapse. The objective of this study was to investigate whether a new chronotherapeutic intervention combining wake therapy with bright light therapy and ...

This study evaluated the effects of a water exercise training program that includes perturbation exercises (WEP) to improve the speed of voluntary stepping reaction in older adults. Speed of voluntary stepping considered as an important skill to prevent a fall when balance is lost. In a single-blinded randomized controlled trial ...

Heart failure (HF) is considered a condition primarily associated with the older population, with approximately 80% of individuals admitted to the hospital with a diagnosis of HF being over the age of 65 years. With the 'aging of the population' in the United States the incidence of HF is expected ...

Distal biceps brachii tendinosis is a relatively uncommon clinical diagnosis seen by physical therapists. As a result, there is little evidence guiding clinical decisions regarding best practice or effective treatment options to restore individuals to their previous level of function. The purpose of this case report is to describe the ...

The aim of this study was to investigate the effect of fatigue induced by an exhaustive laboratory-based soccer-specific exercise on different hamstrings/quadriceps (H:Q) ratios of soccer players. Twenty-two male professional soccer players (23·1 ± 3·4 year) performed maximal eccentric (ecc) and concentric (con) contractions for knee extensors (KE) and flexors (KF) at 60° s(-1) ...

BACKGROUND AND PURPOSE: Individuals with concussion often complain of persistent dizziness and imbalance, and these problems have been treated with vestibular rehabilitation exercises. The purpose of this study is to describe the vestibular rehabilitation exercise prescriptions provided to individuals after concussion. METHODS: A retrospective chart review of vestibular rehabilitation home ...

The basic principle of the management of lymphedema is so called complex decongestive physical therapy. This therapy is divided into two phases: (i) edema reduction phase - an initial intensive treatment phase aiming for limb volume reduction; and (ii) maintenance phase - following long-term phase to sustain a manageable limb ...

BackgroundThe medial hamstring muscle has the potential to prevent excessive dynamic valgus and external rotation of the knee joint during sports. Thus, specific training targeting the medial hamstring muscle seems important to avoid knee injuries.ObjectiveThe aim was to investigate the medial and lateral hamstring muscle activation balance during 14 selected ...

The role of exercise in cystic fibrosis (CF) is well established, and over the last three decades it has become an important component in the management of all individuals with CF. The role of exercise as a prognostic indicator or therapeutic tool is an important area of research interest in ...

Prolonged mechanical ventilation contributes to immobility and deconditioning making efforts to safely discontinue ventilator support desirable. This case report documents how implementing physical therapy treatment interventions, based on the Guide to Physical Therapist Practice, can help to restore a person's functional status even after multiple years of mechanical ventilation dependency. ...

BACKGROUND: Numerous rehabilitation protocols exist for postoperative rotator cuff repairs. Because the goal of early rehabilitation is to prevent postoperative adhesions while protecting the repaired tendons, it would be advantageous to know which range-of-motion exercises allow the rotator cuff to remain the most passive in a painful, guarded, postsurgical shoulder. ...

The aim of this study was to analyse to what extent the use of different loads modifies freestyle stroke and coordination parameters during semi-tethered swimming, and to examine whether those changes are positive or negative to swimming performance. First, behaviour of swimming speed (v), stroke rate (SR) and stroke length ...

Loss of function and low exercise adherence is common among older people after hospitalization. The aim of this randomized-controlled trial was to evaluate the effects of a combined counseling- and exercise program on changes in health-related quality of life (HRQL) and physical function in patients attending a day hospital and ...

BACKGROUND AND AIM: For tailored implementation of evidence-based recommendations and guidelines on physical therapy in patients with rheumatoid arthritis (RA), insight into current physical therapy practice is needed. METHOD: Two hundred and fifty general physical therapists and 211 specialized physical therapists with advanced arthritis training were sent a questionnaire to ...

Insertional tendinopathy of the adductors and rectus abdominis is common in male athletes, especially in soccer players. It may be worsened by physical activity and it usually limits sport performance. The management goal in the acute phase consists of analgesic and anti-inflammatory drugs and physical rehabilitation. In the early stages ...

Purpose: No guidelines for tailoring exercise programs for patients with diabetic complications are available. The purpose of this case report is to report our experiences with a tailored exercise program including safety precautions for a patient with complications related to type 2 diabetes and exercise related regulation issues. Case Description: ...

An asymptomatic Caucasian male patient underwent coronaryartery disease diagnostics. Standard exercise treadmilltest was inconclusive, and Holter ECG study didn't show anysignificant abnormalities. Considering the high risk of ischemicheart diseasenuclear exercise stress test was performed,which revealed ST-segment elevation in the recovery phase ofthe treadmill exercise test. Single photon emission computedtomography (SPECT/CT) ...

Osteitis pubis among soccer athletes is a disabling painful condition and it is difficult to manage without integrating a multimodal treatment approach. There is limited scientific evidence on the effectiveness of exercise in treating Osteitis pubis especially when it progress to a chronic painful condition. The purpose of this case ...

This study was designed to quantify and compare Electromyographic activity (EMG) and applied load in quadriceps muscle within performing high intensity knee extension exercises by Elastic Resistance (ER) and Nautilus Machine (NM). Sixteen male and female subjects (22.4 ± 4.7 yrs) completed 8 RM seated knee extension by NM, elastic ...

This report summarizes work concerning the exercise pressor reflex performed in my laboratory over the past twenty or so years. It is part of a symposium held to celebrate the fortieth anniversary of two publications by Dr. Jere Mitchell that appeared in The Journal of Physiology. For the most part, ...

A routine laboratory exercise for an undergraduate electrical engineering student is to build a simple electronic filter circuit and determine its frequency and transient response. During the exercise, the student exposes the circuit to a range of electrical signals and captures the voltage and current characteristics. The relationship between what ...