Acute response and subcellular movement of HSP27,αB-crystallin and HSP70 in human skeletal muscle after blood-flow-restricted low-load resistance exercise

2014 ◽  
Vol 211 (4) ◽  
pp. 634-646 ◽  
Author(s):  
K. T. Cumming ◽  
G. Paulsen ◽  
M. Wernbom ◽  
I. Ugelstad ◽  
T. Raastad
Keyword(s):  
Skeletal Muscle ◽  
Blood Flow ◽  
Resistance Exercise ◽  
Human Skeletal Muscle ◽  
Load Resistance ◽  
Acute Response ◽  
Low Load ◽  
Αb Crystallin

scholarly journals Low-load resistance training to task failure with and without blood flow restriction: muscular functional and structural adaptations

2020 ◽  
Vol 318 (2) ◽  
pp. R284-R295 ◽  
Author(s):  
Christopher Pignanelli ◽  
Heather L. Petrick ◽  
Fatemeh Keyvani ◽  
George J. F. Heigenhauser ◽  
Joe Quadrilatero ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Blood Flow ◽  
Resistance Training ◽  
Resistance Exercise ◽  
Load Resistance ◽  
Muscle Endurance ◽  
Flow Restriction ◽  
Muscle Adaptations ◽  
Low Load ◽  
Skeletal Muscle Adaptations

The application of blood flow restriction (BFR) during resistance exercise is increasingly recognized for its ability to improve rehabilitation and for its effectiveness in increasing muscle hypertrophy and strength among healthy populations. However, direct comparison of the skeletal muscle adaptations to low-load resistance exercise (LL-RE) and low-load BFR resistance exercise (LL-BFR) performed to task failure is lacking. Using a within-subject design, we examined whole muscle group and skeletal muscle adaptations to 6 wk of LL-RE and LL-BFR training to repetition failure. Muscle strength and size outcomes were similar for both types of training, despite ~33% lower total exercise volume (load × repetition) with LL-BFR than LL-RE (28,544 ± 1,771 vs. 18,949 ± 1,541 kg, P = 0.004). After training, only LL-BFR improved the average power output throughout the midportion of a voluntary muscle endurance task. Specifically, LL-BFR training sustained an 18% greater power output from baseline and resulted in a greater change from baseline than LL-RE (19 ± 3 vs. 3 ± 4 W, P = 0.008). This improvement occurred despite histological analysis revealing similar increases in capillary content of type I muscle fibers following LL-RE and LL-BFR training, which was primarily driven by increased capillary contacts (4.53 ± 0.23 before training vs. 5.33 ± 0.27 and 5.17 ± 0.25 after LL-RE and LL-BFR, respectively, both P < 0.05). Moreover, maximally supported mitochondrial respiratory capacity increased only in the LL-RE leg by 30% from baseline ( P = 0.006). Overall, low-load resistance training increased indexes of muscle oxidative capacity and strength, which were not further augmented with the application of BFR. However, performance on a muscle endurance test was improved following BFR training.

Acute skeletal muscle responses to very low‐load resistance exercise with and without the application of blood flow restriction in the upper body

2018 ◽  
Vol 39 (3) ◽  
pp. 201-208 ◽  
Author(s):  
Samuel L. Buckner ◽  
Matthew B. Jessee ◽  
Scott J. Dankel ◽  
Kevin T. Mattocks ◽  
J. Grant Mouser ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Blood Flow ◽  
Resistance Exercise ◽  
Load Resistance ◽  
Blood Flow Restriction ◽  
Upper Body ◽  
Flow Restriction ◽  
Low Load ◽  
Muscle Responses

scholarly journals Proliferation of myogenic stem cells in human skeletal muscle in response to low-load resistance training with blood flow restriction

2012 ◽  
Vol 590 (17) ◽  
pp. 4351-4361 ◽  
Author(s):  
Jakob Lindberg Nielsen ◽  
Per Aagaard ◽  
Rune Dueholm Bech ◽  
Tobias Nygaard ◽  
Lars Grøndahl Hvid ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Stem Cells ◽  
Blood Flow ◽  
Resistance Training ◽  
Human Skeletal Muscle ◽  
Load Resistance ◽  
Blood Flow Restriction ◽  
Flow Restriction ◽  
Myogenic Stem Cells ◽  
Low Load

Time course of regional vascular adaptations to low load resistance training with blood flow restriction

2013 ◽  
Vol 115 (3) ◽  
pp. 403-411 ◽  
Author(s):  
Julie E. A. Hunt ◽  
Dermot Galea ◽  
Graham Tufft ◽  
Danny Bunce ◽  
Richard A. Ferguson
Keyword(s):  
Blood Flow ◽  
Resistance Exercise ◽  
Popliteal Artery ◽  
Reactive Hyperemia ◽  
Load Resistance ◽  
T Test ◽  
Blood Flow Restriction ◽  
Flow Restriction ◽  
Low Load ◽  
Transient Improvement

Distortion to hemodynamic and ischemic stimuli during blood flow restriction (BFR) exercise may influence regional vascular adaptation. We examined changes at the conduit, resistance, and capillary level in response to low load resistance exercise with BFR. Eleven males (22 ± 3 yr, 178 ± 4 cm, 78 ± 9 kg) completed 6 wk (3 days/wk) unilateral plantar flexion training with BFR at 30% 1 repetition maximum (1-RM). The contralateral leg acted as a nonexercised control (CON). Popliteal artery function [flow-mediated dilation, FMD%] and structure [maximal diameter] and resistance vessel structure [peak reactive hyperemia] were assessed using Doppler ultrasound before and at 2-wk intervals. Calf filtration capacity was assessed using venous occlusion plethysmography before and after training. BFR training elicited an early increase in peak reactive hyperemia (1,400 ± 278 vs. 1,716 ± 362 ml/min at 0 vs. 2 wk; t-test: P = 0.047), a transient improvement in popliteal FMD% (5.0 ± 2.1, 7.6 ± 2.9, 6.6 ± 2.1, 5.7 ± 1.6% at 0, 2, 4 and 6 wk, respectively; ANOVA: P = 0.002), and an increase in maximum diameter (6.06 ± 0.44 vs. 6.26 ± 0.39 mm at 0 vs. 6 wk; Bonferroni t-test: P = 0.048). Capillary filtration increased after 6 wk BFR training ( P = 0.043). No changes in the CON leg were observed. Adaptation occurred at all levels of the vascular tree in response to low load resistance exercise with BFR. Enhanced peak reactive hyperemia and transient improvement in popliteal artery function occurred before changes in artery structural capacity.

scholarly journals Low-load Resistance Exercise During Inactivity is Associated With Greater Fibre Area and Satellite Cell Expression in Older Skeletal Muscle

2019 ◽  
Vol 51 (Supplement) ◽  
pp. 614-615
Author(s):  
Adam Johnston ◽  
Ryan P. Kelly ◽  
Michaela Devries ◽  
Tyler Churchward-Venne ◽  
Stuart Phillips ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Resistance Exercise ◽  
Satellite Cell ◽  
Load Resistance ◽  
Fibre Area ◽  
Low Load ◽  
Cell Expression
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