scholarly journals High-intensity leg cycling alters the molecular response to resistance exercise in the arm muscles

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Marcus Moberg ◽  
William Apró ◽  
Igor Cervenka ◽  
Björn Ekblom ◽  
Gerrit van Hall ◽  
...  

AbstractThis study examined acute molecular responses to concurrent exercise involving different muscles. Eight men participated in a randomized crossover-trial with two sessions, one where they performed interval cycling followed by upper body resistance exercise (ER-Arm), and one with upper body resistance exercise only (R-Arm). Biopsies were taken from the triceps prior to and immediately, 90- and 180-min following exercise. Immediately after resistance exercise, the elevation in S6K1 activity was smaller and the 4E-BP1:eIF4E interaction greater in ER-Arm, but this acute attenuation disappeared during recovery. The protein synthetic rate in triceps was greater following exercise than at rest, with no difference between trials. The level of PGC-1α1 mRNA increased to greater extent in ER-Arm than R-Arm after 90 min of recovery, as was PGC-1α4 mRNA after both 90 and 180 min. Levels of MuRF-1 mRNA was unchanged in R-Arm, but elevated during recovery in ER-Arm, whereas MAFbx mRNA levels increased slightly in both trials. RNA sequencing in a subgroup of subjects revealed 862 differently expressed genes with ER-Arm versus R-Arm during recovery. These findings suggest that leg cycling prior to arm resistance exercise causes systemic changes that potentiate induction of specific genes in the triceps, without compromising the anabolic response.

2010 ◽  
Vol 24 (6) ◽  
pp. 1573-1577 ◽  
Author(s):  
Humberto Miranda ◽  
Roberto Simão ◽  
PatrÍcia dos Santos Vigário ◽  
Belmiro Freitas de Salles ◽  
Marcos TT Pacheco ◽  
...  

2018 ◽  
Vol 43 (5) ◽  
pp. 504-509 ◽  
Author(s):  
JohnEric W. Smith ◽  
Ben M. Krings ◽  
Brandon D. Shepherd ◽  
Hunter S. Waldman ◽  
Steven A. Basham ◽  
...  

The purpose of this investigation was to examine the individual and combined effects of ingesting carbohydrates (CHO) and branched-chain amino acids (BCAA) during high-volume upper body resistance exercise (RE) on markers of catabolism and performance. Thirteen resistance-trained males completed 4 experimental trials with supplementation, ingesting beverages containing CHO, BCAA, CHO+BCAA, or placebo (PLA) in a randomized, double-blind design. The beverages were ingested in 118-mL servings 6 times during an ∼60-min RE session consisting of bench press, bent-over row, incline press, and close-grip row. Each RE was performed with 5 sets of repetitions at 65% 1-repetition maximum until volitional fatigue. Blood samples were collected at baseline, immediately postexercise, and 60 min postexercise to assess glucose and insulin. Cortisol was assessed immediately and at 60 min postexercise. No significant performance benefits were observed for any RE. CHO+BCAA (152.4 ± 71.4 ng/mL) resulted in the lowest cortisol levels, which was lower than BCAA and PLA (193.7 ± 88.5, 182.8 ± 67.5 ng/mL, p < 0.05), but not different from CHO (165 ± 76.5 ng/mL, p = 0.342). Postexercise insulin concentrations were significantly higher with CHO (4.79 ± 3.4 mU/L) compared with BCAA and PLA (3.7 ± 2.0, 3.5 ± 1.8 mU/L, p < 0.05), but not different from CHO+BCAA (4.3 ± 2.5 mU/L, p = 0.339). There was no treatment effect for glucose, but glucose significantly increased from baseline to immediately postexercise and significantly decreased at 60 min postexercise. Ingesting beverages containing CHO with or without BCAA during upper body resistance exercise may promote a more favorable postexercise less catabolic environment.


2012 ◽  
Vol 83 (2) ◽  
pp. 276-281 ◽  
Author(s):  
Marco Machado ◽  
Jeffrey M. Willardson ◽  
Dailson P. Silva ◽  
Italo C. Frigulha ◽  
Alexander J. Koch ◽  
...  

2017 ◽  
Vol 49 (5S) ◽  
pp. 292
Author(s):  
Robert W. Salatto ◽  
Jared W. Coburn ◽  
Jose A. Arevalo ◽  
Lee E. Brown ◽  
Leonard D. Wiersma

2009 ◽  
Vol 23 (2) ◽  
pp. 366-372 ◽  
Author(s):  
Paul C Miller ◽  
Eric E Hall ◽  
Elizabeth A Chmelo ◽  
Jeffrey M Morrison ◽  
Rachel E DeWitt ◽  
...  

2010 ◽  
Vol 24 (6) ◽  
pp. 1657-1662 ◽  
Author(s):  
Bernardo M Rodrigues ◽  
Estélio Dantas ◽  
Belmiro Freitas de Salles ◽  
Humberto Miranda ◽  
Alexander J Koch ◽  
...  

2020 ◽  
Vol 8 (1) ◽  
pp. 52-62
Author(s):  
Ahmad Nasrulloh ◽  
Iswadi Sigit Wicaksono

Penelitian ini bertujuan untuk mengetahui pengaruh latihan bodyweight dengan Total-body Resistance Exercise (TRX) terhadap Peningkatan Kekuatan Otot. Penelitian ini menggunakan metode penelitian eksperimen. Desain penelitian dalam penelitian ini adalah menggunakan one-group pretest-posttest design. Subjek dalam penelitian ini adalah members The Fitlab Hotel Tara. Instrumen yang digunakan leg and back dynamometer untuk mengukur kekuatan otot tungkai dan punggung, hand grip dynamometer untuk mengukur kekuatan otot tangan, dan pull and push dynamometer untuk mengukur kekuatan menarik dan mendorong otot lengan. Teknik analisis data menggunakan uji hipotesis dengan analisis uji t (paired sample t test). Hasil penelitian diperoleh persentase peningkatan pada kekuatan otot tungkai sebesar 6,88 %, persentase peningkatan pada kekuatan otot punggung sebesar 10,17%, persentase peningkatan pada kekuatan otot tangan sebesar 10,4%, persentase peningkatan pada kekuatan menarik otot lengan sebesar 8,67%, persentase peningkatan pada kekuatan mendorong otot lengan sebesar 11,26%. Dengan demikian disimpulkan ada pengaruh yang signifikan latihan bodyweight dengan total-body resistance exercise (TRX) terhadap peningkatan kekuatan otot yang meliputi peningkatan kekuata otot tungkai, kekuatan otot punggung, kekuatan otot tangan, kekuatan menarik otot lengan, dan kekuatan mendorong otot lengan. The bodyweight training with total-body resistance exercise (TRX) can be improving of muscle strength AbstractThis research aims to determine the effect of bodyweight training with Total-body Resistance Exercise (TRX) to the Improvement of Muscle Strength. This research used experimental research methods. The research design in this study was using one-group pretest-posttest design. The subject of the study is members of The Fitlab Tara Hotel. The instruments that have been used are leg and back dynamometer for measure the leg and back muscle strength, hand grip dynamometer for measure the hand muscle strength, and pull and push dynamometer for measure the pulling and pushing arm muscle strength. Data analysis techniques used hypothesis testing with t test analysis (paired sample t test). Based on the results of the study obtained, the percentage increase in leg muscle strength is 6.88%, the percentage increase in back muscle strength is 10.17%, the percentage increase in the hand muscle Strength is 10.4%, the percentage increase in the strength of pulling arm muscles is 8,67%, the percentage increase in the strength of pushing arm muscles is 11.26%. Thus, it was concluded that there was a significant effect of bodyweight training with total-body resistance exercise (TRX) on increasing muscle strength including increased strength of leg muscles, strength of back muscles, strength of hand muscles, strength of pulling arm muscles, and strength of pushing arm muscles.


Sign in / Sign up

Export Citation Format

Share Document