Dynamic Effort – når du vil ha eksplosiv fremgang, mm. -> Trening & Kosthold; Verdt å lese, Utgave 33

Utgave 33 – I denne utgaven:
– Dynamic Effort – når du vil ha eksplosiv fremgang (av Eirik Sandvik)
– Styrketrening uten utstyr: 11 varianter av armhevninger/push-ups (av Eric Cressey)
– No Pain, No Gain? 6 punkter med nødvendig PAIN (av Eirik Sandvik)
– Aspartame…An Undeserved Bad Reputation, Part 2 (av James Krieger)
– Gjør fruktose deg feit? En ‘mannen i gata’-vennlig Biokjemi leksjon (av James Krieger)

“Absorb what is usefull, discard what is useless, and add what is uniquely your own.”
– Bruce Lee

Dynamic Effort – når du vil ha eksplosiv fremgang! En flott artikkel av Eirik Sandvik hos iForm.no – dette er en flott treningsstrategi som jeg vil anbefale de fleste å benytte seg av.

Styrketrening uten utstyr: 11 varianter av armhevninger/push-ups: To flotte artikler fra Eric Cressey med videodemonstrasjoner av 11 push-ups varianter. Push-ups er en genial øvelse for overall styrke, og ikke minst skulderhelse og skadeforebygging.
– Del 1; High Performance Training without the Equipment: 5 Pushup Variations.
– Del 2; High Performance Training Without the Equipment: 6 More Pushup Variations.

No Pain, No Gain? 6 punkter med nødvendig PAIN! En fin artikkel fra Eirik Sandvik;
«#1. Du bør trene hardt og tungt (men også smart)

#2. Du bør ha fremgang også når det gjelder høyere repetisjonsområder
#3. Du bør utføre intervalltrening
#4. Du bør spise bra!
#5. Du må holde ut over lengre perioder
#6. Du må overkomme hindre på veien»

Aspartame…An Undeserved Bad Reputation, Part 2: James Krieger har nå postet del 2 av artikkelserien om aspartam, som jeg også nevnte i verdt å lese utgave 31. Artikkelen krever et 8 $/mnd medlemskap hos http://weightology.net – som jeg så absolutt kan anbefale om du er interessert i ernæring og forskning.

Coca-Cola. Foto: Summi

Mine notater fra artikkelen; (se også Verdt å lese utgave 31 for mine notater fra del 1)
Aspartam og Gentoksisitet: Aspartam blir raskt brytt ned til metanol, asparaginsyre og fenylalanin i kroppen, og ingen faktisk aspartam når vevene våres, derfor er in vitro studier som ser på aspartam og ikke dets metabolitter svært lite relevant, og forskningen der er uansett svært varierende; noen finner noe genotoksisitet i en dose-relatert måte, mens andre ikke finner noen slik effekt.

Aspartam er ikke funnet å være kreftfremkallende i det meste av kliniske forskning på dyr, selv med ekstremt store doser.

Observasjonell forskning finner ingen assosiasjon mellom aspartam-inntak og kreft.

– En ofte sitert studie av aspartam-kritikere er en studie fra Dr. John Olney publisert i 1996, hvor han konkluderer med at aspartam kan skape hjernesvulster fordi man så en økning i antaller oppdagede hjernesvulster samtidig som aspartam-inntaket økte. En massiv limitasjon i denne studien er at den er at korrelasjon ikke nødendigvis er det somme som årsak/kausualitet. Faktisk er det mer sannsynlig at denne korrelasjonen skyldes økt effektivitet i oppdagelsen av hjernesvlutser, og ikke en faktisk økning i antallet.

2) Andreatta, M.M., et al.  Artificial sweetener consumption and urinary tract tumors in Cordoba, Argentina.  Prev Med. 47(1):136-139, 2008.

3) Bandyopadhyay, A., et al.  Genotoxicity testing of low calorie sweeteners: aspartame, acesulfame-K, and saccharin.  Drug Chem Toxicol.  31(4):447-457, 2008.

4) Bosetti, C., et al.  Artificial sweeteners and the risk of gastric, pancreatic, and endometrial cancers in Italy.  Cancer Epidemiol Biomarkers Prev.  18(8):2235-2238, 2009.

5) Gallus, S., et al.  Artificial sweeteners and cancer risk in a network of case-control studies.  Ann Oncol.  18(1):40-44, 2007.

6) Gurney, J.G., et al.  Aspartame consumption in relation to childhood brain tumor risk: results from a case-control study.  J Natl Cancer Inst.  89(14):1072-1074, 1997.

7) Koestner, A.  “Increasing brain tumor rates: is there a link to aspartame?”. J Neuropathol Exp Neurol.  56(1):107-109, 1997.

8) Levy, P.S., and Hedeker, D.  Statistical and epidemiological treatment of the SEER incidence data.  J Neuropathol Exp Neurol. 55(12):1280, 1996.

9) Lim, U., et al.  Consumption of aspartame-containing beverages and incidence of hematopoietic and brain malignancies.  Cancer Epidemiol Biomarkers Prev. 15(9):1654-1659, 2006.

10) Magnuson, B.A., et al.  Aspartame: a safety evaluation based on current use levels, regulations, and toxicological and epidemiological studies.  Crit Rev Toxicol.  37(8):629-727, 2007.

11) Molinary, S.V.  Preclinical studies of aspartame in non-primate animals.  In:  Stegink, L.D., Tiler L.S. Jr., editors.  Aspartame, Physiology and Biochemistry.  New York, NY, USA: Marcel Dekker; 1984.  pp. 289-306.

12) National Toxicology Program.  NTP report on the toxicology studies of aspartame (CAS No. 22839-47-0) in genetically modified (FVB Tg.AC hemizygous) and B6.129-Cdkn2atm1Rdp (N2) deficient mice and carcinogenicity studies of aspartame in genetically modified [B6.129-Trp53tm1Brd (N5) haploinsufficient] mice (feed studies).  Natl Toxicol Program Genet Modif Model Rep.  Oct (1):1-222, 2005.

13) Olney, J.W., et al.  Increasing brain tumor rates: is there a link to aspartame?  J Neuropathol Exp Neurol.  55(11):1115-1123, 1996.

14) Rencuozogullari, E., et al.  Genotoxicity of aspartame.  Drug Chem Toxicol. 27(3):257-268, 2004.

Gjør fruktose deg feit? En ‘mannen i gata’-vennlig Biokjemi leksjon: Nok en flott artikkel fra James Krieger, denne krever dog også medlemskap til 8 $/mnd.

En alternativ artikkel om dette emnet er Alan Aragon’s blogg post ‘The bitter truth about fructose alarmism‘ den går dog ikke inn på hvordan metabolismen av fruktose ser ut i samme detalje.

Glukose/Fruktose metabolisme. Foto: James Krieger

0 Comments

  1. jeg blir alltid happy av ting som sier at det søtstoffet er ok siden jeg bruker det i store mengder. men for oss som ikke gidder å betale medlemskapet der… gjør fruktose deg feit? XD

  2. Niks, det gjør det ikke 🙂
    Studier som viser negative effekter fra fruktose ser som regel på ekstreme inntak, og det er absolutt ingen forskning som tilsier at man bør unngå frukt fordi det inneholder en god del fruktose, slik som mange faktisk gjør.

  3. …I det siste har forøvrig alle kommentarene dine havnet i spam-postkassen, så jeg må godkjenne de manuelt – derfor de ikke har kommet opp med en gang..

    Vet ikke hvorfor de kommer dit.. 🙁

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