The S&C-related Studies Thread | Page 5

Discussion in 'Strength & Conditioning Discussion' started by miaou, Dec 11, 2011.

  1. Badger67 Taxidea taxus

    Badger67
    Joined:
    Feb 16, 2014
    Messages:
    4,355
    Likes Received:
    2,052
    Location:
    Canada
    This is interesting.

    https://peerj.com/articles/1462/

    "he effects of muscle hypertrophy and atrophy on force production and joint moments have been previously described. However, there is a paucity of research showing how hypertrophy and atrophy may affect moment arm (MA) lengths. The purpose of this model was to describe the mathematical relationship between the anatomical cross-sectional area (ACSA) of a muscle and its MA length. In the model, the ACSAs of the biceps brachii and brachialis were altered to hypertrophy up to twice their original size and to atrophy to one-half of their original size. The change in MA length was found to be proportional to the arcsine of the square root of the change in ACSA. This change in MA length may be a small but important contributor to strength, especially in sports that require large joint moments at slow joint angular velocities, such as powerlifting. The paradoxical implications of the increase in MA are discussed, as physiological factors influencing muscle contraction velocity appear to favor a smaller MA length for high velocity movements but a larger muscle MA length for low velocity, high force movements."
     
    #81
    Sano likes this.
  2. Badger67 Taxidea taxus

    Badger67
    Joined:
    Feb 16, 2014
    Messages:
    4,355
    Likes Received:
    2,052
    Location:
    Canada
    #82
    Sano, KotovSyndrome and selfcritical like this.
  3. Badger67 Taxidea taxus

    Badger67
    Joined:
    Feb 16, 2014
    Messages:
    4,355
    Likes Received:
    2,052
    Location:
    Canada
  4. Rusk Black Belt

    Rusk
    Joined:
    Nov 7, 2012
    Messages:
    6,240
    Likes Received:
    1,967
    Location:
    Russian Troll Factory
    My own research shows that i am 2cm shorter after deadlifting and squating in the same workout.
     
    #84
  5. Badger67 Taxidea taxus

    Badger67
    Joined:
    Feb 16, 2014
    Messages:
    4,355
    Likes Received:
    2,052
    Location:
    Canada
    Hip thrusts vs front squats in adolescents aged 14-17 on performance. (6 weeks).
    https://bretcontreras.com/wp-conten...scent-males-A-randomized-controlled-trial.pdf

    " Magnitude-based effect-sizes revealed potentially beneficial effects for the front squat in both front squat 3 RM strength and vertical jump height when compared to the hip thrust. No clear benefit for one intervention was observed for horizontal jump performance. Potentially beneficial effects were observed for the hip thrust compared to the front squat in 10 m and 20 m sprint times. The hip thrust was likely superior for improving normalized isometric mid-thigh pull strength, and very likely superior for improving hip thrust 3 RM and isometric mid-thigh pull strength. These results support the force vector theory."
     
    #85
    selfcritical likes this.
  6. Badger67 Taxidea taxus

    Badger67
    Joined:
    Feb 16, 2014
    Messages:
    4,355
    Likes Received:
    2,052
    Location:
    Canada
    #86
    selfcritical likes this.
  7. Badger67 Taxidea taxus

    Badger67
    Joined:
    Feb 16, 2014
    Messages:
    4,355
    Likes Received:
    2,052
    Location:
    Canada
    #87
    Sano and Noodles03 like this.
  8. Noodles03 Blue Belt

    Noodles03
    Joined:
    May 16, 2013
    Messages:
    574
    Likes Received:
    327
    Location:
    Southern California
    #88
  9. Badger67 Taxidea taxus

    Badger67
    Joined:
    Feb 16, 2014
    Messages:
    4,355
    Likes Received:
    2,052
    Location:
    Canada
    Could be the athletes involved, could be the exact level/degree of squat specificity, anomaly (to either side), motivational factors, muscle mass localized to the joint and angle of use. Lots to consider really, i was just shocked to see how much partial squats actually have a place, even as a supplementary.
     
    #89
  10. Noodles03 Blue Belt

    Noodles03
    Joined:
    May 16, 2013
    Messages:
    574
    Likes Received:
    327
    Location:
    Southern California
    I was shocked too. I'm definitely going to be adding some partial squats into my routine.
     
    #90
  11. Badger67 Taxidea taxus

    Badger67
    Joined:
    Feb 16, 2014
    Messages:
    4,355
    Likes Received:
    2,052
    Location:
    Canada
    #91
    j123, Sano and miaou like this.
  12. JauntyAngle International man of mystery

    JauntyAngle
    Joined:
    Dec 15, 2006
    Messages:
    7,437
    Likes Received:
    696
    Location:
    Classified
    It's obvious from a common-sense perspective, but it's not easy to explain given standard models of depression. As far as I know, almost all of the models of unipolar depression explain it in terms of dysfunctional learning, cognitive models, cognitive-behavioural patterns etc. So if, for example, the reason you are depressed is because you attribute success in life to external temporary factors and failure in life to internal, permanent factors, as some psychologists think ('attributional style' theory), why exactly would cleaning up your diet change that? To me it seems rather interesting.
     
    #92
  13. Badger67 Taxidea taxus

    Badger67
    Joined:
    Feb 16, 2014
    Messages:
    4,355
    Likes Received:
    2,052
    Location:
    Canada
    How you nourish yourself and brain will have a profound impact on neural excitation and subsequently your thought processes. This would change your outlook on things in life, decrease some stress levels allowing one to cope better and improve mood function. The effects of high levels of glutamate (found in crap foods as an example containing high amounts of soy or hydrolyzed products) end up being excitotoxic to the brain.
     
    #93
    TehWeak1, Thunderhead and Noodles03 like this.
  14. Noodles03 Blue Belt

    Noodles03
    Joined:
    May 16, 2013
    Messages:
    574
    Likes Received:
    327
    Location:
    Southern California
    #94
    Badger67 likes this.
  15. Badger67 Taxidea taxus

    Badger67
    Joined:
    Feb 16, 2014
    Messages:
    4,355
    Likes Received:
    2,052
    Location:
    Canada
    #95
    Sano, Noodles03 and selfcritical like this.
  16. Noodles03 Blue Belt

    Noodles03
    Joined:
    May 16, 2013
    Messages:
    574
    Likes Received:
    327
    Location:
    Southern California
    #96
    Sano and selfcritical like this.
  17. Sano Brown Belt

    Sano
    Joined:
    Jul 31, 2011
    Messages:
    4,281
    Likes Received:
    6,539
    Location:
    Denmark
    Chris Beardsley is the man. I would read his articles though to get the bigger picture. He goes through a lot of stuff, so naturally some of the studies are a little fluffy.

    EDIT: In line with the velocity topic, this one is pretty cool:
    [​IMG]

    Accompanied by this article:
    https://www.strengthandconditioningresearch.com/perspectives/lifting-weights-fast/
     
    #97
    Last edited: Jun 24, 2017
    Badger67, Noodles03 and selfcritical like this.
  18. selfcritical Brown Belt

    selfcritical
    Joined:
    Jun 14, 2011
    Messages:
    3,513
    Likes Received:
    584
    I think this one has been replicated too. Hex Bar seems like a really good choice for Dynamic Effort stuff
     
    #98
    Badger67 likes this.
  19. NurseKnuckles My Mom's stronger than you belt

    NurseKnuckles
    Joined:
    Jun 1, 2008
    Messages:
    9,382
    Likes Received:
    1,075
    Location:
    Brockville, Ontario
    Heard today Coconut advocates are CoCo when it comes to interpreting the results from those studies out of Columbia U
     
    #99
    selfcritical likes this.
  20. Badger67 Taxidea taxus

    Badger67
    Joined:
    Feb 16, 2014
    Messages:
    4,355
    Likes Received:
    2,052
    Location:
    Canada
    https://bmcnutr.biomedcentral.com/articles/10.1186/s40795-017-0170-2

    "Appetite sensations, food preferences, energy expenditure and substrate oxidation are significantly altered in response to changes in meal macronutrient composition produced by modifications in the protein content of a meal and consumption of a SSB. Most notably, consumption of a SSB during a meal markedly reduces energy efficiency and fat oxidation independent of macronutrient composition."
     
    #100
    Noodles03 likes this.

Share This Page

monitoring_string = "fd5733925866a04e50edd70f38dfaa35"
monitoring_string = "603ac9fff68f23709f2a42bf5e29272b"