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Results 351 - 400 of 1200
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Nuzzo James L - - 2008
The purpose of this investigation was to compare trunk muscle activity during stability ball and free weight exercises. Nine resistance-trained men participated in one testing session in which squats (SQ) and deadlifts (DL) were completed with loads of approximately 50, 70, 90, and 100% of one-repetition maximum (1RM). Isometric contractions ...
Liu Wen - - 2008
Past studies have suggested that acupuncture may reduce spasticity in stroke survivors. We do not know, however, whether acupuncture may enhance the effect of strength training on motor function. This study compared upper-limb motor functional improvement in chronic stroke survivors who received a combination of acupuncture and strength training with ...
Mangine Gerald T - - 2008
The purpose of the present study was to investigate the additive effects of ballistic training to a traditional heavy resistance training program on upper- and lower-body maximal strength. Seventeen resistance-trained men were randomly assigned to 1 of 2 groups: (i) a combined ballistic and heavy resistance training group (COM; age ...
Ratamess Nicholas A - - 2008
The purpose of the present investigation was to examine the influence of resistance training with a personal trainer versus unsupervised resistance training on the self-selected intensities used by women during resistance exercise. Forty-six resistance-trained women (age = 26.6 +/- 6.4 years; body mass = 64.2 +/- 10.9 kg) who either ...
Katula Jeffrey A - - 2008
BACKGROUND: Although progressive resistance strength training (ST) has been found to improve various measures of physical functioning in older adults, the benefit to quality of life is unclear. Additionally, recent evidence suggests that high velocity power training (PT) may be more beneficial for physical functioning than ST, but it is ...
Spennewyn Keith C - - 2008
The purpose of this study was to compare measures of strength and balance between subjects using fixed form or free-form resistance training equipment to determine whether there is a difference in strength or balance outcomes. Thirty previously untrained subjects, mean age = 49 (+/-3.7 years), were randomly placed in either ...
Verschuren Olaf - - 2008
PURPOSE: To evaluate the intertester reliability of two methods for measuring lower-limb strength in children with cerebral palsy (CP). METHOD: Twenty-five subjects with CP (7-17 years of age) participated in this study. Lower-limb muscle strength was measured on 2 occasions using a Hand-held Dynamometer (HHD; break-method and make-method) and a ...
Glinsky Joanne - - 2008
QUESTIONS: Is an 8-week progressive resistance exercise program effective for increasing strength in the wrist muscles of people with tetraplegia? Is it effective for improving muscle endurance and participants' perceptions about use of their hands for activities of daily living? DESIGN: Randomised controlled trial with concealed allocation, assessor blinding, and ...
Goodman Craig A - - 2008
Exercise or Swiss balls are increasingly being used with conventional resistance exercises. There is little evidence supporting the efficacy of this approach compared to traditional resistance training on a stable surface. Previous studies have shown that force output may be reduced with no change in muscle electromyography (EMG) activity while ...
Moinuddin Irfan - - 2008
The morbidity and mortality associated with chronic kidney disease (CKD) are primarily caused by atherosclerosis and cardiovascular disease, which may be in part caused by inflammation and oxidative stress. Aerobic exercise and resistance training have been proposed as measures to combat obesity, inflammation, endothelial dysfunction, oxidative stress, insulin resistance, and ...
Hibbs Angela E - - 2008
Core stability and core strength have been subject to research since the early 1980s. Research has highlighted benefits of training these processes for people with back pain and for carrying out everyday activities. However, less research has been performed on the benefits of core training for elite athletes and how ...
Levinger Itamar - - 2009
The one-repetition maximum (1RM) test is considered the gold standard for assessing muscle strength in non-laboratory situations. Since most previous 1RM reliability studies have been conducted with experienced young participants, it is unclear if acceptable test-retest reliability exists for untrained middle-aged individuals. This study examined the reliability of the 1RM ...
Pijnappels Mirjam - - 2008
For efficient prevention of falls among older adults, individuals at a high risk of falling need to be identified. In this study, we searched for muscle strength measures that best identified those individuals who would fall after a gait perturbation and those who recovered their balance. Seventeen healthy older adults ...
Phillips Stuart M - - 2007
Progressive resistance training promotes strength gains in both the young and the aged. Importantly, gains in strength in aged persons are, with the appropriate duration, intensity, and progression, not simply due to neuromuscular mechanisms, but also encompass muscle fibre hypertrophy. Critically, the resistance exercise-induced changes in aged skeletal muscle are ...
Mulder Edwin R - - 2007
We analyzed the effects of gravitational unloading on muscular fatigability and the effectiveness of resistive vibration exercise to counteract these changes. Changes in knee extensor fatigability as a consequence of 8 weeks of horizontal bedrest with or without daily resistive vibration exercise were evaluated in 17 healthy male volunteers. Bedrest ...
Hu M - - 2008
The purpose of this study was to investigate if strength training affects red blood cell variables in physically inactive men when taking into account seasonal variations. Seventy-four men aged 20-45 were randomly assigned to training (n = 52) and control (n = 22) groups. Training group underwent 20-week progressive strength ...
Hamlyn Nicolle - - 2007
The purpose of this study was to examine the extent of activation in various trunk muscles during dynamic weight-training and isometric instability exercises. Sixteen subjects performed squats and deadlifts with 80% 1 repetition maximum (1RM), as well as with body weight as resistance and 2 unstable calisthenic-type exercises (superman and ...
Landin Dennis - - 2007
The purpose of this study was to explore the effects of various exercise sequences in the early weeks of a strength training program. Forty-two untrained men were randomly assigned to one of 4 training regimens, which were differentiated by the order in which the exercises were performed, and trained 3 ...
García-López David - - 2007
This study aimed to examine short-term resistance training effects of resting period length between sets on maximal number of repetitions and mean velocity over a moderate-intensity (60% of the maximum voluntary isometric contraction [MVIC]) set to failure on elbow-flexor muscles. The MVIC and surface electromyographic activity (sEMG) were also measured. ...
Szymanski David J - - 2007
This investigation examined the effect of torso rotational strength on angular hip (AHV), angular shoulder (ASV), linear bat-end (BEV), and hand velocities (HV) and 3 repetition maximum (RM) torso rotational and sequential hip-torso-arm rotational strength (medicine ball hitter's throw) in high school baseball players (age 15.4 +/- 1.2 y). Participants ...
Viale Fabrice - - 2007
We herein examined whether immediate muscular activity (active recovery) after stretching decreased stretch-induced strength deficits in human muscles. Our within-subject study included 8 subjects who were used as their own controls. For each subject, both legs were subjected to the same warm-up and stretching treatments, and then one leg was ...
de Souza Eduardo Oliveira - - 2007
The purpose of this study was to evaluate the effects of 2 modes of aerobic exercise (continuous or intermittent) on maximum strength (1 repetition maximum, 1RM) and strength endurance (maximum repetitions at 80% of 1RM) for lower- and upper-body exercises to test the acute hypothesis in concurrent training (CT) interference. ...
Gielo-Perczak K - - 2007
The geometrical dimensions of the bones that make up the glenohumeral joint could be a key factor in strength predictability. Understanding the mechanical influence of these dimensions (individually or in combination) on shoulder strength could help explain the mechanism of musculoskeletal disorders. The following study shows how a recently discovered ...
Buford Thomas W - - 2007
The purpose of the present investigation was to determine if significant differences exist among 3 different periodization programs in eliciting changes in strength. Twenty-eight recreationally trained college-aged volunteers (mean +/- SD; 22.29 +/- 3.98) of both genders were tested for bench press, leg press, body fat percentage, chest circumference, and ...
Gentil Paulo - - 2007
With the purpose of manipulating training stimuli, several techniques have been employed to resistance training. Two of the most popular techniques are the pre-exhaustion (PRE) and priority system (PS). PRE involves exercising the same muscle or muscle group to the point of muscular failure using a single-joint exercise immediately before ...
Miranda Humberto - - 2007
The purpose of this study was to compare the effects of 2 different rest period lengths during a resistance training session with the number of repetitions completed per set of each exercise, the volume completed over 3 sets of each exercise, and the total volume during a training session. Fourteen ...
Cettolo Valentina - - 2007
PURPOSE: The purpose of this study was to investigate, in heavy-resistance strength-trained (N = 10) and untrained (N = 10) subjects, the vastus lateralis muscle oxyhemoglobin (O2Hb) desaturation time course in response to a brief, maximal, voluntary isometric contraction. METHODS: The two groups were not statistically different physically. Mean (+/- ...
Rees Sven - - 2007
This study was designed to investigate the effects of vibration on muscle performance and mobility in a healthy, untrained, older population. Forty-three participants (23 men, 20 women, 66-85 y old) performed tests of sit-to-stand (STS), 5- and 10-m fast walk, timed up-and-go test, stair mobility, and strength. Participants were randomly ...
Cheema Bobby - - 2007
BACKGROUND: To determine whether prolonged (24 weeks) intradialytic progressive resistance training (PRT) could counteract muscle wasting more effectively than short-duration training (12 weeks) in patients with end-stage renal disease. STUDY DESIGN: Randomized controlled trial. SETTING & PARTICIPANTS: 49 patients (age, 62.6 +/- 14.2 years; 0.3 to 16.7 years on hemodialysis ...
Judelson Daniel A - - 2007
PURPOSE: Although many studies have attempted to examine the effect of hypohydration on strength, power, and high-intensity endurance, few have successfully isolated changes in total body water from other variables that alter performance (e.g., increased core temperature), and none have documented the influence of hypohydration on an isotonic, multiset, multirepetition ...
Mroszczyk-McDonald Alex - - 2007
PURPOSE: To determine normative values for handgrip (HG) strength at entry into cardiac rehabilitation (CR) and to examine the relationship of HG strength with self-reported physical function and the response of HG strength to exercise training. METHODS: HG strength was measured in 1,960 patients with coronary heart disease. Other measures ...
Volaklis Konstantinos A - - 2007
BACKGROUND: We examined the effects of combined resistance and aerobic training on land versus combined resistance and aerobic training in water in patients with coronary artery disease. METHODS: Thirty-four patients were randomly assigned to land exercise (LE, n = 12), water exercise (WE, n = 12), and control (n = ...
Moir Gavin - - 2007
The purpose of this study was to assess the effect of periodized resistance training on accelerative sprint performance. Sixteen physically active men participated in a randomized controlled study. An experimental group (n = 10) completed an 8-week periodized resistance training intervention, while a control group (n = 6) did not ...
Ekstrom Richard A - - 2007
STUDY DESIGN: Prospective, single-group, repeated-measures design. OBJECTIVE: To identify exercises that could be used for strength development and the exercises that would be more appropriate for endurance or stabilization training. BACKGROUND: The exercises analyzed are often used in rehabilitation programs for the spine, hip, and knee. They are active exercises ...
Khan Rabia S - - 2008
BodyBalance is a popular mind-body program practised at numerous leisure centres throughout the western world that makes many unsubstantiated claims as to the benefits of participation. This study examines physiological and psychological responses in adults, aged (mean+/-S.D.) 43.9+/-10.9 years, to a 12-week 'BodyBalance' exercise program. An exercise intervention group (n=17) ...
Nongogo, P; ;
Stretching exercises are commonly used as an integral part of a pre-exercise warm-up training sessions despite even early laboratory studies having demonstrated that some degree of mechanical weakness takes place following the stretching of muscle tissue. This study compared the effects of four treatments (n = 12 each) [10 minutes ...
Lephart Scott M - - 2007
The purpose of this study was to determine the effects of an 8-week golf-specific exercise program on physical characteristics, swing mechanics, and golf performance. Fifteen trained male golfers (47.2 +/- 11.4 years, 178.8 +/- 5.8 cm, 86.7 +/- 9.0 kg, and 12.1 +/- 6.4 U.S. Golf Association handicap) were recruited. ...
Harris Chad - - 2007
In this study, we assessed the influence of training intensity on strength retention and loss incurred during detraining in older adults. In a previous study, untrained seniors (age = 71.0 +/- 5.0; n = 61) were randomly divided into 3 exercise groups and 1 control group. Exercise groups trained 2 ...
Szymanski David J - - 2007
This study examined the effect of 12 weeks of medicine ball training on high school baseball players. Forty-nine baseball players (age 15.4 +/- 1.2 years) were randomly assigned using a stratified sampling technique to 1 of 2 groups. Group 1 (n = 24) and group 2 (n = 25) performed ...
Keogh Justin W - - 2007
OBJECTIVE: To investigate the effect of unilateral upper-limb strength training on the finger-pinch force control of older men. DESIGN: Pretest and post-test 6-week intervention study. SETTING: Exercise science research laboratory. PARTICIPANTS: Eleven neurologically fit older men (age range, 70-80y). INTERVENTION: The strength training group (n=7) trained twice a week for ...
Drinkwater Eric J - - 2007
Some research suggests that strength improvements are greater when resistance training continues to the point at which the individual cannot perform additional repetitions (i.e., repetition failure). Performing additional forced repetitions after the point of repetition failure and thus further increasing the set volume is a common resistance training practice. However, ...
Tagesson Sofi K B - - 2007
The purpose of the present study was to develop a systematic procedure for the establishment of 1 repetition maximum (1RM) in order to describe an easily accessible test procedure that is applicable for physical therapists and athletic trainers who manage strength training for healthy individuals and patients. Another purpose was ...
Knuttgen Howard G - - 2007
Most exercise programs for conditioning and rehabilitation are oriented to strength development, aerobic (cardiovascular) fitness, or a combination of the 2. Because the 2 types of exercise are located at the opposite extremes of a muscular power continuum, the design of a program must be highly specific with regard to ...
Bojsen-Møller Jens - - 2007
Physical fitness and muscular strength are important performance factors for Olympic class sailors, but the physical demands vary greatly between yacht classes, and limited information is available regarding the physical demands for the different crew positions. In the present paper, strength and aerobic capacity data from elite Olympic sailors are ...
Hansen Ernst Albin - - 2007
The freely chosen pedal rate is relatively high and energetically inefficient during submaximal cycling, which is a paradox since the rate of energy expenditure is considered important for voluntary motor behavior in other cyclical activities as, e.g., running. For example, it has been suggested that subjects pedal fast to reduce ...
Rosario-Ortiz Fernando L - - 2007
The polarity rapid assessment method (PRAM) characterizes the polarity of aqueous natural organic matter (NOM) by quantifying the amount of material adsorbed onto different solid-phase extraction (SPE) sorbents. The analysis is performed under ambient conditions resulting in the elimination of pretreatment steps that may alterthe chemical characteristics of the NOM, ...
Giaccaglia V - - 2008
Prior data in young individuals suggest that the angiotensin-converting enzyme (ACE) insertion/deletion (I/D) polymorphism interacts with exercise to affect athletic performance, but the direction of the genotype effect depends on the outcome assessed (endurance vs. strength). The purpose of this study was to determine whether the ACE I/D genotype influences ...
Rogers Matthew W - - 2007
Hand exercise is recommended for hand osteoarthritis (OA) management, but few efficacy studies have been published. The purpose of the study was to determine the effects of two years of whole body strength training and gripper exercise on hand strength, pain, and function in adults with radiographic evidence of hand ...
Degache Francis - - 2007
BACKGROUND: Patients with congestive heart failure (CHF) exhibit an impaired exercised tolerance that dramatically limits their functional capacity and alters their quality of life. DESIGN: The aim of this study was to compare the effects of two types of training programmes on isokinetic muscle strength and aerobic capacities in patients ...
Piva Sara R - - 2007
BACKGROUND AND PURPOSE: Muscle atrophy is common in patients with rheumatoid arthritis (RA). Although neuromuscular electrical stimulation (NMES) is a viable treatment for muscle atrophy, there is no evidence about the use of NMES in patients with RA. The purposes of this multiple-patient case report are: (1) to describe the ...
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