Tag: "maximal" at biology news

16 APS exercise research highlights, from reduced flu mortality to proteomics & obesity

... indicates that strength training with emphasis on maximal mobilization in the concentric part of a leg press device improves work economy in COPD patients. 23.5 Stan L. Lindstedt, et al. (Northern Arizona University, Flagstaff) Design of muscle for function as a spring. Titin may function as a major comp...

Heat and exercise alone may not determine how much we sweat

... elicited 65 percent of the individual's predicted maximal heart rate at a pedaling cadence of 60 rpm. After the exercise bout, the subject either stopped all leg movement or, on a separate day, the subject's legs were passively moved (at 60 rpm) via a second person cycling the tandem ergometer. The order of...

Gene alteration points to longevity, thinness

...from embryo to adult in about three days and has a maximal lifespan of about four weeks. Dr. Fei cloned all three of the acid transporters in the C. elegans, knocked down the activity of each and found that the newest transporter Indy increased the lifespan of the worm and decreased body size and fat conten...

Deciphering the limits to human maximal exercise performance

... during centuries what is the main factor limiting maximal exercise capacity in humans. During the past century evidence has accumulated suggesting that maximal exercise capacity in humans is limited by the maximal amount of O2 that can be delivered to the acti...

Exercise reduces blood estrogens, risk for breast cancer in post menopausal women

...vity resulting in the women reaching 40 percent of maximal heart rate for 16 minutes per session. The exercis...to the point where the women reached 60-75 percent maximal heart rate for 45 minutes per session. The women trained primarily on treadmills, stationary bicycle...

Ambient light influences the evolution of colour signals

...luence the evolution of animal coloration. Because maximal conspicuousness is achieved for signals which are rich in the colours of ambient light but poorly reflected by background, different signals will be cryptic or conspicuous at different heights in tropical rainforest. In the forthcoming issue of Ecol...

New study seeks to establish mechanism between areas of the brain and continence

...ed from a catheter-affixed bag. Subjects performed maximal and submaximal EAS contractions during two fMRI sc...were: Stage 1: Comparison of objectively monitored maximal and submaximal EAS contractions found that during maximal anal sphincter contraction, cerebral corti...

Carbohydrates offer some help in muscle protein synthesis, but not enough for the desired effect

...ise. However, amino acid intake is necessary for a maximal response, one desired by most participating in resistance exercise programs....

Can the mode of training affect the hormone response to different modes of exercise?

...bjects. The END subjects had significantly greater maximal aerobic power. Body mass did not change prior to or during the study. Exercise Sessions : Cardiorespiratory data were collected every minute during the exercise sessions, and the individual means for each session were averaged by group. The 40...

JCI table of contents, December 15 2003

...er than hematopoietically-derived alloantigens for maximal acute target tissue infiltration and injury. TITLE: Importance of minor histocompatibility antigen expression by nonhematopoietic tissues in a CD4+ T cellmediated graft-versus-host disease model AUTHOR CONTACT: Robert Korngold Kimmel C...

Estrogen receptor-a disruption and vasodilation in coronary arteries

...lopment was expressed as the percent decrease from maximal diameter according to the formula: Tone (%) = [(Dm D8)/Dm] x 100, where Dm is the maximal diameter recorded at 60 cmH2O and Ds is the steady-state diameter recorded after equilibration of th...

Could a specific protein contribute to erectile dysfunction for the diabetic and obese?

...ing air. Strips were mounted at lengths that allow maximal force generation during potassium-depolarization. Cumulative dose response curves for the -adrenergic agonist phenylephrine, (PE) 0.1-10 mM and ET-1 (0.01-10 mM) were preformed. Cumulative dose-response protocols were completed either in the absence ...

New study shows why hypertension affects black males disproportionately

... classic criteria were used to determine whether a maximal effort had been achieved. Independent t-tests were performed for all variables pertaining to the hypotheses. As a secondary analysis, a discriminant analysis was computed to determine the relative strength of the arterial compliance, autonomic varia...

Nasal contribution to breathing with exercise: The effect of race and gender

...edicted maximum heart, the subject's percentage of maximal physical work capacity (PWCmax) was determined. O...n (within 15 min postexercise), subjects performed maximal inspiratory flow maneuvers via their nose by slowly exhaling to near residual volume and then rapidl...

Small subset of cells has big role in controlling immunity, study finds

...that IDO has to be present for the reagent to have maximal effect, Dr. Mellor says. These findings take the researchers closer to their goal of targeted manipulation of the immune system. "In principal we can use the new immunosuppressive drug to do that. We can treat mice with the reagent, and introduce ant...

Cold-climate creatures may be the ultimate survivors of global warming, study finds

...ermal acclimation," Stillman said. "And since the maximal habitat temperature for this species is around 61 F (16 C), this species would likely survive a 4-6 F (2-3 C) temperature increase caused by global warming." At the other extreme, Mexico's P. gracillis, whose habitat sometimes reaches 105.8 F (41 C)...

Pox to pimples; study says acne-like outbreak not vaccinia

...en eight and 10 days post-vaccination, the time of maximal viral replication, four people had a generalized rash of pustules on their arms, legs, face, back and trunk; 11 had a similar, but more focal, reaction. Historical accounts of smallpox vaccine side effects listed "non-descript rashes or general vac...

Lithium shows promise against Alzheimers in mouse model

...iments established that the enzyme is required for maximal amyloid processing. In mouse neurons expressing amyloid precursor protein, lithium significantly reduced production of beta amyloid. A therapeutic dose of lithium also markedly reduced the peptides and beta amyloid production in an animal model of ...

Schepens Eye Research Institute scientists at ARVO

...ree of both blood and lymphatic vessels to achieve maximal clarity for light entering the eye and, therefore, good vision. When these vessels do grow in the cornea in diseases such as herpetic keratitis, the only option has been to transplant a clear new donor cornea into the center of the patient's cornea. ...

Location of ulcerations in diabetic patients may be explained by blood flow

...sion (subjects lying prone on a bed) images showed maximal estimated skin perfusion at the heel and metatarsal heads, with intermediate levels on the lateral edge of the sole and minimal values in the rest of the plantar surface. The patterns of plantar pressures during walking generally reproduced the same ...

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