Search Results
Results 201 - 250 of 1421
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Schoenfeld Brad J - - 2010
The squat is one of the most frequently used exercises in the field of strength and conditioning. Considering the complexity of the exercise and the many variables related to performance, understanding squat biomechanics is of great importance for both achieving optimal muscular development as well as reducing the prospect of ...
Farinatti P T V - - 2010
Exercise effects in subjects with HIV/AIDS are not entirely understood. The study aimed to investigate the effects of a supervised exercise program on the physical fitness and immunological function of HIV-infected subjects. Twenty-seven highly active antiretroviral therapy treated HIV-infected patients (age: 45±2 years; CD4-T: 21.3±2.2%) were assigned to a control ...
Nichols Jeanne F - - 2010
There is a growing need to accurately assess exercise energy expenditure (EEE) in athletic populations that may be at risk for health disorders because of an imbalance between energy intake and energy expenditure. The Actiheart combines heart rate and uniaxial accelerometry to estimate energy expenditure above rest. The authors' purpose ...
Sanjak Mohammed - - 2010
To determine the feasibility, tolerability, safety, and exercise treatment-effect size of repetitive rhythmic exercise mediated by supported treadmill ambulation training (STAT) for patients with amyotrophic lateral sclerosis (ALS). Interventional with repeated-measures design. Multidisciplinary ALS clinic at academic medical center. Convenience sample of patients with ALS (N=9) who were ambulatory with ...
Astorino Todd A - - 2010
Studies provide equivocal results regarding the ergogenic properties of caffeine during high-intensity exercise. The primary aim of this study was to examine the effects of two doses of caffeine on peak/average torque, power output, and total work of the knee extensors and flexors during two bouts of high-intensity exercise. Fifteen ...
Mauger Alexis R - - 2010
INTRODUCTION:: The traditional VO2max protocol has received criticism for being an unnatural form of exercise, lacking ecological validity and producing different VO2max responses depending on protocol duration and work rate increments. PURPOSE:: The purpose of this investigation was to design and test a new VO2max protocol that allowed subjects to ...
Fulco Charles S - - 2011
There is an expectation that repeated daily exposures to normobaric hypoxia (NH) will induce ventilatory acclimatization and lessen acute mountain sickness (AMS) and the exercise performance decrement during subsequent hypobaric hypoxia (HH) exposure. However, this notion has not been tested objectively. Healthy, unacclimatized sea-level (SL) residents slept for 7.5 h ...
Yamaguti Wellington Pereira dos Santos - - 2010
To compare the diaphragmatic mobility of healthy subjects during incentive spirometry with a volume-oriented device, during incentive spirometry with a flow-oriented device, and during diaphragmatic breathing. To compare men and women in terms of diaphragmatic mobility during these three types of breathing exercises. We evaluated the pulmonary function and diaphragmatic ...
Mora-Rodriguez Ricardo - - 2010
The purpose of this study was to determine if in a hot-dry environment, racewalking increases intestinal temperature (T(int)) above the levels observed when running either at the same velocity or at a similar rate of heat production. Nine trained racewalkers exercised for 60 min in a hot-dry environment (30.0 ± 1.4°C; 33 ± 8% relative ...
Horng A - - 2011
To analyze locoregional deformation patterns indicative of contact areas in patellar cartilage after different loading exercises. 7 healthy patellae were examined in-vivo before and immediately after standardized loading (kneeling, squatting or knee bends) and after 90 minutes of rest using a sagittal 3D-T1-w FLASH WE sequence (22 msec/ 9.8 msec/ ...
Herdy Artur Haddad - - 2011
The reference values for cardiopulmonary exercise testing (CPET) available in Brazil were derived from a cycle ergometer in a sedentary and relatively small population. Provide reference values for CPET in Brazilians of both sexes, either sedentary or active. From 2006 to 2008, 3,992 CEPT of healthy individuals were selected from ...
Volianitis S - - 2011
Exercise lowers the cerebral metabolic ratio of O2 to carbohydrate (glucose+1/2 lactate) and metabolic acidosis appears to promote cerebral lactate uptake. However, the influence of pH on cerebral lactate uptake and, in turn, on the cerebral metabolic ratio during exercise is not known. Sodium bicarbonate (Bicarb, 1 M; 350-500 ml) ...
Ferraresi Cleber - - 2011
Recent studies have investigated whether low level laser therapy (LLLT) can optimize human muscle performance in physical exercise. This study tested the effect of LLLT on muscle performance in physical strength training in humans compared with strength training only. The study involved 36 men (20.8±2.2 years old), clinically healthy, with a ...
Barr David - - 2010
This study investigated the impact of ice vests and hand/forearm immersion on accelerating the physiological recovery between two bouts of strenuous exercise in the heat [mean (SD), 49.1(1.3)°C, RH 12 (1)]. On four occasions, eight firefighters completed two 20-min bouts of treadmill walking (5 km h, 7.5% gradient) while wearing standard firefighter ...
Kelly Stephen B - - 2010
The purpose of this study was to compare the effects of warm-up protocols using either whole-body vibration (WBV) or cycle ergometry (CE) on peak torque at 3 different isokinetic speeds and on fatigue in the knee extension exercise. Twenty-seven recreationally trained (age = 23.59 ± 3.87 years) men (n = ...
Vila-Chã Carolina - - 2011
The study investigates the effects of eccentric exercise of the quadriceps on proprioception of the knee in weight and non-weight bearing tasks. Proprioception of the exercised leg was assessed at 120° and 150° of knee extension in 15 healthy adults (age 25.0 ± 3.6 yrs) before, immediately after, and 24h ...
Rutkowska-Kucharska Alicja - - 2010
The purpose of the study was to evaluate the electromyographic (EMG) activity of muscles in curl-up exercises depending on the position of the upper and lower extremities. From the perspective of biomechanics, different positions of the extremities result in shifting the center of gravity and changing muscular loads in abdominal ...
Eitzen Ingrid - - 2010
Prospective cohort study without a control group. Firstly, to present our 5-week progressive exercise therapy program in the early stage after anterior cruciate ligament (ACL) injury. Secondly, to evaluate changes in knee function after completion of the program for patients with ACL injury in general and also when classified as ...
Ju Yan-Ying - - 2011
Proprioception can be affected by many factors including exercise. Most exercises involve certain degrees of repeated passive movements, and different velocities of these movements might affect proprioception differently. The purpose of this study was to evaluate the influences of different angular velocities of repeated passive movement on knee proprioception via ...
Felicio Lilian Ramiro - - 2011
Patella stabilizer muscle response and patellar kinematics were evaluated in 19 women with anterior knee pain (AKP) and 20 healthy women during maximum voluntary isometric contraction (MVIC) with the knee positioned at 15°, 30° and 45° flexion during open (OKC) and closed (CKC) kinetic chain exercises. Patellar kinematics was evaluated ...
Kobayashi Yuji - - 2010
This study aimed to examine the bilateral differences in movement and joint torques during the squat exercise by using kinematic and kinetic analyses. Eighteen long jumpers participated in this study. They performed 3 repetitions of the squat exercise with loads of 50, 70, and 90% of their 3 repetition maximum ...
Kuenze Christopher - - 2010
Cryotherapy is a widely used modality following acute joint injury. It is considered helpful in reducing pain and swelling, and there is a growing body of evidence to suggest that it may have additional benefits in muscle function. Following joint injury, it is common for patients to experience persistent muscle ...
Walsh Sharon Fleming - - 2010
This describes a child whose neonatal brachial plexus injury was treated with kinesiotape and exercise. The subject was a two-year-old female whose X-rays demonstrated severe inferior subluxation of the humeral head and winging of the scapula on the left. She was fitted with a shoulder brace with surgery scheduled in ...
Adedoyin R A - - 2010
Background: Formulae for predicting functional capacity during 6-minute walk are lacking and the accuracy of the existing formulae has been challenged in deferent populations. Aims: The purpose of this study was to develop an equation that would be useful in predicting functional capacity in form of maximum oxygen consumption) (V0 ...
Bennell Kim L - - 2011
Osteoarthritis (OA) is a chronic joint disease with the hip and knee being commonly affected lower limb sites. Osteoarthritis causes pain, stiffness, swelling, joint instability and muscle weakness, all of which can lead to impaired physical function and reduced quality of life. This review of evidence provides recommendations for exercise ...
Jung Do-Young - - 2011
To compare the muscle activity of the abductor hallucis (AbdH) and the medial longitudinal arch (MLA) angle during toe curl (TC) and short foot (SF) exercises while sitting or in one-leg standing position. Two-way repeated-measures ANOVA was used to analyze the effects of exercise type and position on the muscle ...
Schachter Aaron K - - 2010
An important synergistic relationship exists between the scapular stabilizers and the glenohumeral rotators. Information on the relative contribution of the scapular stabilizers to glenohumeral rotation would be useful for exercise prescription for overhead athletes and for patients with shoulder pathology. We hypothesized that the scapular stabilizers would be highly active ...
Baur Heiner - - 2010
Seventy percent of motor sports athletes report low back pain. Information on the physical capacity of race car drivers is limited. The purpose of this study was to compare the maximum trunk extensor and flexor strength of elite race car drivers and physically active controls. Thirteen elite race car drivers ...
Pittaccio Simone - - 2010
NiTi is a metal alloy with unconventional functional characteristics: Shape memory and pseudoelasticity. Its use in the field of rehabilitation is very innovative. This work presents applications in lower limb orthotics. Three different devices were assembled and tested: An equinus gait dynamic splint, a compliant ankle positioning brace, and a ...
Tsai Yi-Ta - - 2010
Analysis of electromyographic (EMG) activities in the back during dynamic exercise is needed because more complex loading on the spine is created in comparison with that during static exercise. The purpose of this study is to investigate the difference in bilateral midback and low-back paraspinal muscle (PSM) activities during performance ...
Pietrosimone Brian G BG Department of Kinesiology, University of Toledo, Toledo, OH 43606-3390, USA. - - 2010
to determine whether sensory transcutaneous electrical nerve stimulation (TENS) augmented with therapeutic exercise and worn for daily activities for four weeks would alter peak gait kinetics and kinematics, compared with placebo electrical stimulation and exercise, and exercise only. randomized controlled trial. motion analysis laboratory. thirty-six participants with radiographically assessed knee ...
Takasaki Hiroshi - - 2011
In the management of neck pain disorders, McKenzie recommends performing neck extension exercises from a fully neck retracted position in order to achieve a maximum range of lower cervical extension. However, no study has investigated the impact of pre-positioning the neck prior to the extension exercise. This study compared end-range ...
Limonta Eloisa - - 2010
This study examined the force/velocity (F/V) curve morphology among the entire concentric phase of the countermovement squat (CMS). The hypothesis is that F/V curve shape of the lower limb muscles complex is different from F/V isolated muscle curve and that these analyses could be useful in characterizing athletes' muscular capacity ...
Hahn Soo Bong - - 2010
PURPOSE: We reviewed the results of cross finger flaps after surgical release and vigorous postoperative exercises for long-standing, severe flexion contractures of the Proximal Interphalangeal (PIP) joints of fingers. MATERIALS AND METHODS: In 9 patients, all contracted tissue was sequentially released and the resultant skin defect was covered with a ...
Ono Takashi - - 2010
The purpose of this study was to clarify the activation patterns among knee flexor muscles during knee flexion exercises by electromyography (EMG) and muscle functional magnetic resonance imaging (mfMRI). Seven male volunteers performed knee flexion exercises with each unilateral limb at 120% of 1 repetition of maximum (1RM) and 50% ...
Liu Hao - - 2010
The purpose of this systematic review was to identify exercise parameters and the most common outcome measures used in tai chi (TC) research. Ovid Medline and PubMed were used to identify longitudinal studies published from January 2000 to July 2007 written in English with the key words tai chi, tai ...
duManoir Gregory R - - 2010
The adjustments of pulmonary oxygen uptake V O2p limb blood flow (LBF) and muscle deoxygenation (ΔHHb) were examined during transitions to moderate-intensity, knee-extension exercise in seven older (OA; 71 ± 7 year) and seven young (YA; 26 ± 3 year) men. YA and OA performed repeated step transitions from an ...
Thorp L E - - 2010
BACKGROUND: High dynamic loads of the medial knee are associated with tibiofemoral osteoarthritis (OA) severity and progression. The lower extremity acts as an integrated kinetic unit, thus treatments targeting adjacent segments may promote reductions in the loading of a symptomatic knee. This study examined the biomechanical effects of a lower ...
Imai Atsushi - - 2010
STUDY DESIGN: Controlled laboratory study. OBJECTIVES: To clarify whether differences in surface stability influence trunk muscle activity. BACKGROUND: Lumbar stabilization exercises on unstable surfaces are performed widely. One perceived advantage in performing stabilization exercises on unstable surfaces is the potential for increased muscular demand. However, there is little evidence in ...
Conradsson D - - 2010
Skating technique in cross-country skiing is a complex multi-joint movement with kinematics comparable to those of the standing squat exercise where any restricted joint mobility in the lower extremity-chain may change the movement pattern. The aim of this pilot study was to investigate the effect of ankle mobility on trunk ...
French H P - - 2010
OBJECTIVES: To assess patient satisfaction with exercise for knee osteoarthritis (OA). METHODS: A convenience sample of 27 patients recruited to a randomized controlled trial (RCT) comparing open kinetic chain and closed kinetic chain exercises for knee OA were reassessed at nine months post-randomization. Clinical outcomes included self-report and physical performance ...
Carvalho Nilza Aparecida de Almeida - - 2010
Physiotherapy is one of the most important components of therapy for osteoarthritis of the knee. The objective of this prospective case series was to assess the efficiency of a guidance manual for patients with osteoarthritis of the knee in relation to pain, range of movement , muscle strength and function, ...
Magrani Paula - - 2010
VO2 may be predicted with base on anthropometric and physiological parameters for determined populations. To propose models for submaximal and maximal VO2 prediction in young Brazilian adults. A total of 137 volunteers (92 men) underwent graded maximal exercise test (GXT) in a cycle ergometer (MonarkTM, Br). Gas exchange and respiratory ...
Lee Yun Jong - - 2011
To apply the Osteoarthritis Research Society International (OARSI) assessment system to an osteoarthritis model, 44 Wistar rats were randomized into treadmill-running exercise or control group. At 6, 8, and 10 weeks, medial knee joints were histopathologically evaluated, and aggrecan neoepitope and TUNEL staining were performed. Cartilage changes in exercise group were ...
Van Ginckel Ans - - 2011
Recently, the general finding of increased ankle cartilage stiffness to loading has been challenged, suggesting the need for the investigation of different in vivo loading conditions. Therefore, the objectives of the present study were to determine ankle (talar) cartilage deformation after in vivo loading using 3D volume change calculation and ...
Bae Tae Soo - - 2010
It is important to consider lumbar lordotic angle for setup of training program in field of sports and rehabilitation to prevent unexpected posture deviation and back pain. The purpose of this study was to to analyze the biomechanical impact of the level of lumbar lordosis angle during isokinetic exercise through ...
Irish Sian E - - 2010
Patellofemoral pain syndrome (PFPS) is one of the most prevalent musculoskeletal conditions of the lower limb. The muscle imbalance between the vastus medialis oblique (VMO) and vastus lateralis (VL) muscles is one of the main factors leading to the development of PFPS. The disparity in research and the necessity to ...
Escamilla Rafael F - - 2010
STUDY DESIGN: Controlled laboratory study using a repeated-measures, counterbalanced design. OBJECTIVES: To test the ability of 8 Swiss ball exercises (roll-out, pike, knee-up, skier, hip extension right, hip extension left, decline push-up, and sitting march right) and 2 traditional abdominal exercises (crunch and bent-knee sit-up) on activating core (lumbopelvic hip ...
Rahnama Nader - - 2010
Consumption of energy drinks has become widespread among athletes. The effectiveness of Red Bull and Hype energy drinks on selected indices of maximal cardiorespiratory fitness and blood lactate levels in male athletes was examined in this study. TEN MALE STUDENT ATHLETES (AGE: 22.4 ± 2.1 years, height: 180.8 ± 7.7 ...
Rossi Mark D - - 2010
The purpose of this case report was to present a method for assessing entire lower extremity performance and describe a Medical Exercise Therapy (MET) training program early after simultaneous bilateral total knee replacement (TKR). We also documented perceived function, mobility, and weight-bearing ability during functional tasks. The patient was a ...
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