2014/02/1a473_fitness_51FdHlZSi7L._SL160_

Cortisol: Stress hormone linked to frailty

Lower morning and higher evening cortisol levels contribute to frailty in older individuals, according to new research accepted for publication in the Endocrine Society’s Journal of Clinical Endocrinology & Metabolism (JCEM).

Frailty confers a high risk for institutionalization and increased risk of mortality and is characterized by unintentional weight loss, feelings of exhaustion and fatigue, physical inactivity, slow gait speed and low grip strength. Neuroendocrine function, including cortisol secretion, is thought to be involved in the etiology of frailty, but until now the underlying biological mechanisms have not been well understood.

“Cortisol typically follows a distinct daily pattern with the highest level in the morning and the lowest basal level at night,” said Karl-Heinz Ladwig, PhD, MD, of Helmholtz Zentrum München in Neuherberg, Germany and an author of the study. “Our findings showed dysregulated cortisol secretion, as featured by a smaller morning to evening cortisol level ratio, was significantly associated with frailty status.”

In this study, researchers conducted a cross-sectional analysis of 745 participants between the ages of 65 and 90 years. Cortisol levels were measured using saliva samples at three points: awakening, 30 minutes after awakening and evening. Participants were classified as frail if three or more of the following criteria were met: exhaustion, physical inactivity, low walking speed, weakness (measured by grip strength) or weight loss (loss of more than 5 kilograms in the past six months).

“Our results suggest a link between disrupted cortisol regulation and loss of muscle mass and strength, as the underlying pathophysiology of frailty,” said Hamimatunnisa Johar, a PhD student at Helmholtz Zentrum München and an author of the study. “In a clinical setting assessment of frailty can be time-consuming, and our findings show measurements of cortisol may offer a feasible alternative.”

Story Source:

The above story is based on materials provided by Endocrine Society. Note: Materials may be edited for content and length.

Original story here.
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Comments

    • SVTFilms
    • February 21, 2014
    Reply

    None pf these fuckers are nattys

    • Vladimir Andjelic
    • February 21, 2014
    Reply

    none are natural

    • ilikebacon247
    • February 21, 2014
    Reply

    why do all the aesthetic bodybuilders seem to act like douchey Abercrombie
    models? I’m just trying to compare the difference between what I assume to
    be natural and competitive bodybuilding, but I have to sit through awkward
    poses and guys blowing kisses at the fucking camera.

    • IAmDonEdwards
    • February 22, 2014
    Reply

    Not one pull up was completed that day.

    • LD.Tube
    • February 22, 2014
    Reply

    this guy are clearly not natural, this is obvious to anyone who knows how
    body physiology works expecially when you reach very low bodyfat percentage
    like 6%

    • Kingtunice
    • February 22, 2014
    Reply

    vanity, vanity every fucking where

    • Marco Smud
    • February 22, 2014
    Reply

    The most natural Steroid Fitness Aesthetics.

    • RonasProductions
    • February 22, 2014
    Reply

    I would soo love to see them legs :)

    • Norbert brilliant
    • February 22, 2014
    Reply

    sory guys, natural means, with supplements like protein,creatine,amino and
    etc. ?

    • Mica Petrovic
    • February 22, 2014
    Reply

    SoOoOoO much steroids!!!
    Muscle CAN’T be so lean!!!
    NATURAL MY ASS!!!

    • gomes gaiins
    • February 22, 2014
    Reply

    just because they have good bodies dont talk shitt man, its unfair. they
    have been training for like 5+ and with help of some good genetics they can
    achieve a good physique. as for myself i have friends who asks me if i use
    steroids.. its fucked up. just because i grow muscle very fast they thinks
    its have to be some kind of cheat you know.. put in the hard work and eat
    like a monster you will see massive changes to your body. i was 180 shredd
    in this picture belive it or not i was doing powerlifting back then, no
    hyperthropy training what so ever. but i still have some nice gains?
    genetics play a huge role.. the society of BB gives the steroid to much
    attention, if you see a great physique you are danm fast to talk shitt
    about him “got to be roids” STFU. When people come to my face asking if i
    use roids im like hell yeah im doing something right, but i dont like to be
    called a cheater i bust my fucking ass off at the gym and it stops me from
    doing alot of things. Making food 5 times a day, eating 3600 calories oww
    man i hate to eat.. workout 4-5 times a week, i dont go to party often and
    my girlfriend cries i dont have time for her. Show some respekt and dont
    talk if you dont know, just stfu and lett people do whatever the fuck they
    wanna DO. 

    • Dinozo2
    • February 22, 2014
    Reply

    look at all the butthurt losers 😉
    love this video and it motivates me to keep up in da gym !

    • Dave Trizzle
    • February 22, 2014
    Reply

    after they all oil eachother in the sauna.. you guys are fuckin fags

    • CheeseMan003
    • February 22, 2014
    Reply

    I hate Jeff Seid, he’s everywhere and everybody talks about him…

    • Spljofo
    • February 22, 2014
    Reply

    hahahaha ZERO respect ZERO !

    • MKahara2
    • February 22, 2014
    Reply

    Less time talking shit on youtube and more lifting, you beta cunt.

    • MKahara2
    • February 22, 2014
    Reply

    These guys weight around 160-175 on stage, you think that’s not natural? do
    any of you people talking shit here even lift / compete? jesus..

    • Silversoul28
    • February 22, 2014
    Reply

    NOT!

    • daviderebus
    • February 22, 2014
    Reply

    I don’t care if they are natural or not , But don’t claim to be natural if
    you are not. That’s the point .

    • rey2103
    • February 22, 2014
    Reply

    Lolol I would have more respect for these guys if they came clean about
    juicing and what’s their juice stack, so that they can actually help others
    LOL

    • PyroX steez
    • February 22, 2014
    Reply

    Song: Strength of a Thousand men (Instrumental Core Remix)

    • Firejack95
    • February 22, 2014
    Reply

    Look up body fat percentage graphics. That’s what body fat percentage looks
    like. These guys are at <5%. For your body fat percentage to be that low,
    you would have to do a shit ton of cardio and eat very little. This would
    cause muscular atrophy, and your body would end up using a lot of muscle
    for fuel. It's damn near impossible to have this much muscle mass while
    being so ripped, unless your body is almost completely devoid of
    water--which isn't the case

    • Angel Jordanov
    • February 22, 2014
    Reply

    Natural !!!! axaxaxa no i dont thing…

    • jon-arne greiner
    • February 22, 2014
    Reply

    U mirrin bro?

    • Master Yoda
    • February 22, 2014
    Reply

    Please tell me more about how mibolerone,anadrol and metribolone are safe.
    Please tell me more about how such 17AA and LH blockers are safe. Sure
    their use is justified by the need to push everything to the limit but dont
    claim they are perfectly safe.

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