Anabola signaler efter styrketräning med hög volym eller hög intensitet

[King Grub]

Resistance exercise paradigms are often divided into high volume (HV) or high intensity (HI) protocols, however, it is unknown whether these protocols differentially stimulate mTORC1 signaling. The purpose of this study was to examine mTORC1 signaling in conjunction with circulating hormone concentrations following a typical HV and HI lower-body resistance exercise protocol. Ten resistance-trained men (24.7 ± 3.4 years; 90.1 ± 11.3 kg; 176.0 ± 4.9 cm) performed each resistance exercise protocol in a random, counterbalanced order. Blood samples were obtained at baseline (BL), immediately (IP), 30 min (30P), 1 h (1H), 2 h (2H), and 5 h (5H) postexercise. Fine needle muscle biopsies were completed at BL, 1H, and 5H. Electromyography of the vastus lateralis was also recorded during each protocol. HV and HI produced a similar magnitude of muscle activation across sets. Myoglobin and lactate dehydrogenase concentrations were significantly greater following HI compared to HV (P = 0.01-0.02), whereas the lactate response was significantly higher following HV compared to HI (P = 0.003). The growth hormone, cortisol, and insulin responses were significantly greater following HV compared to HI (P = 0.0001-0.04). No significant differences between protocols were observed for the IGF-1 or testosterone response. Intramuscular anabolic signaling analysis revealed a significantly greater (P = 0.03) phosphorylation of IGF-1 receptor at 1H following HV compared to HI. Phosphorylation status of all other signaling proteins including mTOR, p70S6k, and RPS6 were not significantly different between trials. Despite significant differences in markers of muscle damage and the endocrine response following HV and HI, both protocols appeared to elicit similar mTORC1 activation in resistance-trained men.

Physiol Rep. 2015 Jul;3(7). Intramuscular anabolic signaling and endocrine response following high volume and high intensity resistance exercise protocols in trained men.

http://physreports.physiology.org/content/3/7/e12466

[F Ultra]

Träningsprogrammet i studien:

Högvolym: 70% av 1rm och 1 minuts setvila.
Högintensitet: 90% av 1rm och 3 minuters setvila.


Övning Högvolym Högintesitet
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Knäböj 6x10-12 6x3-5
Benpress 4x10-12 4x3-5
Lårcurls 4x10-12 4x3-5
Benspark 4x10-12 4x3-5
Sittande vadpress 4x10-12 4x3-5



During each protocol, participants were verbally encouraged to complete each set. If the participant was unable to complete the desired number of repetitions, spotters provided assistance until the participant completed the remaining repetitions. Subsequently, the load for the next set was adjusted so that participants were able to perform the specific number of repetitions for each set.

[panzerpig]

Oj. Jobbiga program. Trodde först dom menade klassisk högvolym mot klassisk HIT. Detvar det ju inte.

[BobaFett]

Jag skulle vilja ha en studie där de har en grupp som kör HI, en grupp som kör HV och en som kör HV+HI varannat pass och se vilken som ökar mest i muskelmassa.

[zeusden1]

Låter som vanlig träning på klubb