handdator

Visa fullständig version : Hypertrofisk effekt av lokal värme eller kyla efter styrketräning


King Grub
2017-10-31, 10:18
PURPOSE:

To determine the impact of local muscle heating and cooling on myogenic and proteolytic gene responses following resistance exercise.

METHODS:

Recreationally trained males (n = 12), age 25.3 ± 1.5, % body fat 13.6 ± 1.92, completed four sets of 8-12 repetitions of unilateral leg press and leg extension while heating one leg, and cooling the other. Muscle biopsies were taken from the vastus lateralis of each leg pre and 4 h post exercise.

RESULTS:

MyoD, FOXO1, and MuRF1 mRNA increased with exercise regardless of temperature (p < 0.05). Myostatin, MYF5, and atrogin-1 mRNA decreased with exercise regardless of temperature (p < 0.05). Myogenin, MRF4, and CASP3 mRNA were higher in the hot condition, compared to the cold (p < 0.05). PAX7 mRNA was lower in the hot compared to cold condition (p = 0.041). FOXO3 mRNA was higher in the cold compared to hot condition (p = 0.037). AKT1 and AKT2 were unaffected by either exercise or temperature. Femoral artery blood flow volume was higher in the hot (375.2 ± 41.2 ml min- 1), compared to the cold condition (263.5 ± 23.9 ml min- 1), p = 0.01. Tissue oxygen saturation was higher in the hot (71.7 ± 4.8%) than cold condition (55.3 ± 5.0%).

CONCLUSION:

These results suggest an impaired muscle growth response with local cold application compared to local heat application.

Eur J Appl Physiol. 2017 Oct 28. Impact of local heating and cooling on skeletal muscle transcriptional response related to myogenesis and proteolysis.

David_wigren
2017-10-31, 15:53
Fan, jag som kylbehandlat mina armar efter nästan varje pass de senaste 2 åren ��! Som tur är har jag lyckats få dem att växa ändå.

King Grub
2017-10-31, 16:23
Tänk så grov du hade varit om du inte gjort det.

David_wigren
2017-10-31, 16:51
Tänk så grov du hade varit om du inte gjort det.

Haha ja. Fast nu läste jag närmare och då såg jag att det handlade om värme vs kylbehandling under träningen och inte efter som jag gjort. Där rök min bortförklaring:laugh: