scholarly journals Signaling Responses After Varying Sequencing of Strength and Endurance Training in a Fed State

2016 ◽  
Vol 11 (7) ◽  
pp. 868-875 ◽  
Author(s):  
Thomas W. Jones ◽  
Ian H. Walshe ◽  
David L. Hamilton ◽  
Glyn Howatson ◽  
Mark Russell ◽  
...  
Keyword(s):  
Strength Training ◽  
Endurance Training ◽  
Vastus Lateralis ◽  
Concurrent Training ◽  
Signaling Proteins ◽  
Experimental Conditions ◽  
Tissue Samples ◽  
Acute Bout ◽  
Fed State ◽  
Training Performance

Purpose:To compare anabolic signaling responses to differing sequences of concurrent strength and endurance training in a fed state.Methods:Eighteen resistance-trained men were randomly assigned to the following experimental conditions: strength training (ST), strength followed by endurance training (ST-END), or endurance followed by strength training (END-ST). Muscle tissue samples were taken from the vastus lateralis before each exercise protocol, on cessation of exercise, and 1 h after cessation of strength training. Tissue was analyzed for total and phosphorylated (p-) signaling proteins linked to the mTOR and AMPK networks.Results:Strength-training performance was similar between ST, ST-END, and END-ST. p-S6k1 was elevated from baseline 1 h posttraining in ST and ST-END (both P < .05). p-4E-BP1 was significantly lower than baseline post-ST (P = .01), whereas at 1 h postexercise in the ST-END condition p-4E-BP1 was significantly greater than postexercise (P = .04). p-ACC was elevated from baseline both postexercise and 1 h postexercise (both P < .05) in the END-ST condition. AMPK, mTOR, p38, PKB, and eEF2 responded similarly to ST, ST-END, and END-ST. Signaling responses to ST, ST-END, and END were largely similar. As such it cannot be ascertained which sequence of concurrent strength and endurance training is most favorable in promoting anabolic signaling.Conclusions:In the case of the current study an acute bout of concurrent training of differing sequences elicited similar responses of the AMPK and mTOR networks.

Similar qualitative and quantitative changes of mitochondrial respiration following strength and endurance training in normoxia and hypoxia in sedentary humans

2011 ◽  
Vol 301 (4) ◽  
pp. R1078-R1087 ◽  
Author(s):  
Dominik Pesta ◽  
Florian Hoppel ◽  
Christian Macek ◽  
Hubert Messner ◽  
Martin Faulhaber ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Oxidative Phosphorylation ◽  
Strength Training ◽  
Endurance Training ◽  
Fatty Acid Oxidation ◽  
Muscle Mass ◽  
Mitochondrial Respiration ◽  
Vastus Lateralis ◽  
Acid Oxidation ◽  
Hypoxia Group

Endurance and strength training are established as distinct exercise modalities, increasing either mitochondrial density or myofibrillar units. Recent research, however, suggests that mitochondrial biogenesis is stimulated by both training modalities. To test the training “specificity” hypothesis, mitochondrial respiration was studied in permeabilized muscle fibers from 25 sedentary adults after endurance (ET) or strength training (ST) in normoxia or hypoxia [fraction of inspired oxygen (FiO2) = 21% or 13.5%]. Biopsies were taken from the musculus vastus lateralis, and cycle-ergometric incremental maximum oxygen uptake (V̇o2max) exercise tests were performed under normoxia, before and after the 10-wk training program. The main finding was a significant increase ( P < 0.05) of fatty acid oxidation capacity per muscle mass, after endurance and strength training under normoxia [2.6- and 2.4-fold for endurance training normoxia group (ETN) and strength training normoxia group (STN); n = 8 and 3] and hypoxia [2.0-fold for the endurance training hypoxia group (ETH) and strength training hypoxia group (STH); n = 7 and 7], and higher coupling control of oxidative phosphorylation. The enhanced lipid oxidative phosphorylation (OXPHOS) capacity was mainly (87%) due to qualitative mitochondrial changes increasing the relative capacity for fatty acid oxidation ( P < 0.01). Mitochondrial tissue-density contributed to a smaller extent (13%), reflected by the gain in muscle mass-specific respiratory capacity with a physiological substrate cocktail (glutamate, malate, succinate, and octanoylcarnitine). No significant increase was observed in mitochondrial DNA (mtDNA) content. Physiological OXPHOS capacity increased significantly in ETN ( P < 0.01), with the same trend in ETH and STH ( P < 0.1). The limitation of flux by the phosphorylation system was diminished after training. Importantly, key mitochondrial adaptations were similar after endurance and strength training, regardless of normoxic or hypoxic exercise. The transition from a sedentary to an active lifestyle induced muscular changes of mitochondrial quality representative of mitochondrial health.

scholarly journals A Comparison of the Effect of Strength Training on Cycling Performance between Men and Women

2021 ◽  
Vol 6 (1) ◽  
pp. 29
Author(s):  
Olav Vikmoen ◽  
Bent R. Rønnestad
Keyword(s):  
Sex Differences ◽  
Strength Training ◽  
Endurance Training ◽  
Cycling Performance ◽  
Concurrent Training ◽  
Sectional Area ◽  
Cross Sectional ◽  
Men And Women ◽  
Male And Female ◽  
Muscle Cross Sectional Area

During the last decade numerous review articles have been published on how concurrent strength and endurance training affect cycling performance. However, none of these have reviewed if there are any sex differences in the effects of concurrent training on cycling performance, and most research in this area has been performed with male cyclists. Thus, the aim of the current paper is to review the scientific literature on the effect of concurrent training on cycling performance in male and female cyclists with a special emphasis on potential sex differences. The results indicate that both male and female cyclists experience a similar beneficial effect from concurrent training on cycling performance and its physiological determinants compared to normal endurance training only. Some data indicate that women have a larger effect on cycling economy, but more studies are needed to explore this further. Furthermore, the adaptations to strength training thought to be responsible for the beneficial effects on cycling performance seem to be very similar between men and women. Interestingly, increased muscle cross-sectional area in the main locomotor muscles seems to be an important adaptation for improved performance, and, contrary to popular belief, cyclists should aim for increased muscle cross-sectional area when adding strength training to their normal training. We conclude that both male and female cyclists can improve their cycling performance by adding strength training to their normal training.

scholarly journals Concurrent training effect on muscle fibers in Wistar rats

2013 ◽  
Vol 19 (4) ◽  
pp. 717-723 ◽  
Author(s):  
Robson Chacon Castoldi ◽  
Regina Celi Trindade Camargo ◽  
Alan José Barbosa Magalhães ◽  
Guilherme Akio Tamura Ozaki ◽  
Fábio Yoshikazu Kodama ◽  
...  
Keyword(s):  
Strength Training ◽  
Endurance Training ◽  
Wistar Rats ◽  
Muscle Fibers ◽  
Multiple Comparisons ◽  
Training Group ◽  
Concurrent Training ◽  
Control Group ◽  
Cross Sectional ◽  
Post Test

The aim of the present study was to determine the modeling of muscle fibers in rats submitted to different exercise protocols. Fifty-five Wistar rats were submitted divided into four different groups: Control group (CG; N=16); endurance training group (ETG; N=13), strength training group (STG; N=13) and concurrent training group (CTG; N=13). The intensity of endurance training was determined by the critical workload. Statistical analysis involved the Kruskal-Wallis test for multiple comparisons, followed by Dunn's post test (p<0.05). All animals submitted to training exhibited an increase in the cross-sectional area of the muscle fibers. The largest increase (p>0.05) occurred in the STG and CTG at both four (mean:2952,95 ± 878,39 mean:2988,84 ± 822,58) and eight weeks respectively (mean:3020,26 ± 800.91; mean:3104,91 ± 817,87). The findings demonstrate similar results obtained with strength training and concurrent training, with a greater increase in muscle fiber area in both groups in comparison to the control group and group submitted to endurance training.

Investigation of The Effect of Concurrent Training Strength and Endurance Training on Physical, Physiological and Psychological Parameters in Young Football Players

2021 ◽  
Vol 15 (10) ◽  
pp. 2945-2950
Author(s):  
Selçuk Tarakçi ◽  
Salih Pinar
Keyword(s):  
Strength Training ◽  
Endurance Training ◽  
Rest Period ◽  
Training Model ◽  
Strength Test ◽  
Concurrent Training ◽  
Football Players ◽  
Speed Test ◽  
Endurance Strength ◽  
Psychological Parameters

Background: Football is a versatile team sport that requires a range of physical characteristics, including flexibility, power, strength, endurance, speed, repetitive sprinting, quickness-agility and technique-tactics. Developing all these features at the same time, especially in the pre-season, when players are in a deconditioning state, returning to training after a rest period; it is quite difficult for coaches and performance trainers. Aim: The aim of this study is to examine the effects of strength and endurance training applied simultaneously on some physical, physiological and psychological parameters in young football players. Methods: U19 age group players were included in the research group, 24 male football players who played amateur or professionally licensed football for at least 5 years and trained for an average of 2 hours a day, 5 days a week; (Endurance+Strength Group n=12, Strength+Endurance Group n=12). In the study, 1 RM strength test, agility, speed, technique, decision-making skills and endurance tests were taken from the participants. In our study, with the pretest-posttest measurement method; Yo-Yo test, Loughborough Soccer Passing Test (LSPT), Illinois Agility Test, 30 meters Speed Test, Maximal (1RM) Strength Test, Jumping Test (CMJ) were applied. Results: The findings obtained when the performance values of football players within and between groups were evaluated statistically; It has been determined that the positive increase in endurance, strength, sprint, agility/speediness, jump and lspt pass test values as a percentage (%) was seen in the group that applied strength training before endurance training. Conclusion: The application of strength training before endurance training in 'concurrent' training model applications in young football players; on performance values; It has been determined that endurance training has more effect than applying it before strength training. According to these results, it is thought that designing the programs by taking this situation into consideration in the training program adjustments can contribute more to the coaches and the player group in terms of sportive efficiency. Keywords: Football, concurrent, strength, endurance, LSPT.

Endurance training alters motor unit activation strategies for the vastus lateralis, yet sex-related differences and relationships with muscle size remain

2021 ◽  
Vol 121 (5) ◽  
pp. 1367-1377
Author(s):  
Stephanie A. Sontag ◽  
Michael A. Trevino ◽  
Trent J. Herda ◽  
Adam J. Sterczala ◽  
Jonathan D. Miller ◽  
...  
Keyword(s):  
Endurance Training ◽  
Motor Unit ◽  
Vastus Lateralis ◽  
Muscle Size ◽  
Motor Unit Activation

scholarly journals Development of Maximal Dynamic Strength During Concurrent Resistance and Endurance Training in Untrained, Moderately Trained, and Trained Individuals: A Systematic Review and Meta-analysis

2021 ◽  
Vol 51 (5) ◽  
pp. 991-1010
Author(s):  
Henrik Petré ◽  
Erik Hemmingsson ◽  
Hans Rosdahl ◽  
Niklas Psilander
Keyword(s):  
Resistance Training ◽  
Endurance Training ◽  
Meta Analysis ◽  
Dynamic Strength ◽  
Concurrent Training ◽  
Strength Development ◽  
Lower Body ◽  
Body Strength ◽  
Lower Body Strength ◽  
Maximal Dynamic Strength

Abstract Background The effect of concurrent training on the development of maximal strength is unclear, especially in individuals with different training statuses. Objective The aim of this systematic review and meta-analysis study was to compare the effect of concurrent resistance and endurance training with that of resistance training only on the development of maximal dynamic strength in untrained, moderately trained, and trained individuals. Methods On the basis of the predetermined criteria, 27 studies that compared effects between concurrent and resistance training only on lower-body 1-repetition maximum (1RM) strength were included. The effect size (ES), calculated as the standardised difference in mean, was extracted from each study, pooled, and analysed with a random-effects model. Results The 1RM for leg press and squat exercises was negatively affected by concurrent training in trained individuals (ES =  – 0.35, p < 0.01), but not in moderately trained ( – 0.20, p = 0.08) or untrained individuals (ES = 0.03, p = 0.87) as compared to resistance training only. A subgroup analysis revealed that the negative effect observed in trained individuals occurred only when resistance and endurance training were conducted within the same training session (ES same session =  – 0.66, p < 0.01 vs. ES different sessions =  – 0.10, p = 0.55). Conclusion This study demonstrated the novel and quantifiable effects of training status on lower-body strength development and shows that the addition of endurance training to a resistance training programme may have a negative impact on lower-body strength development in trained, but not in moderately trained or untrained individuals. This impairment seems to be more pronounced when training is performed within the same session than in different sessions. Trained individuals should therefore consider separating endurance from resistance training during periods where the development of dynamic maximal strength is prioritised.

scholarly journals Arm exercise training in chronic obstructive pulmonary disease

2012 ◽  
Vol 9 (3) ◽  
pp. 153-162 ◽  
Author(s):  
Zoe J McKeough ◽  
Peter TP Bye ◽  
Jennifer A Alison
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Strength Training ◽  
Endurance Training ◽  
Exercise Capacity ◽  
Exercise Test ◽  
Control Group ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Arm Exercise ◽  
Arm Strength

The aim of this study was to compare the effects of arm endurance training, arm strength training, a combination of arm endurance and strength training, and no arm training on endurance arm exercise capacity. A randomised controlled trial was undertaken with chronic obstructive pulmonary disease subjects randomised into one of four groups to complete 8 weeks of training: (a) arm endurance training (endurance group) consisting of supported and unsupported arm exercises, (b) arm strength training (strength group) using weight machines, (c) a combination of arm endurance and arm strength training (combined group), or (d) no arm training (control group). The primary outcome measurement was endurance arm exercise capacity measured by an endurance arm crank test. Secondary outcomes included functional arm exercise capacity measured by the incremental unsupported arm exercise test and health-related quality of life. A total of 52 subjects were recruited and 38 (73%) completed the study. When comparing the arm endurance group to the control group, there was a significant increase in endurance time of 6 min (95% CI 2–10, p < 0.01) following the interventions. When comparing the combined group to each of the control, endurance and strength groups, there was a significantly greater reduction in dyspnoea and rate of perceived exertion at the end of the functional arm exercise test for the combined group following the interventions. The mode of training to be favoured to increase endurance arm exercise capacity is arm endurance training. However, combined arm endurance and strength training may also be very useful to reduce the symptoms during everyday arm tasks.

Effect of Strength Training and Concurrent Strength and Endurance Training on Strength, Testosterone, and Cortisol

1997 ◽  
Vol 11 (1) ◽  
pp. 57-64
Author(s):  
Gordon Bell ◽  
Dan Syrotuik ◽  
Teresa Socha ◽  
Ian Maclean ◽  
H. Art Quinney
Keyword(s):  
Strength Training ◽  
Endurance Training

scholarly journals Running velocity at the ventilatory threshold and at VO2max, before and after the eight-week cardiovascular endurance training

2005 ◽  
Vol 58 (1-2) ◽  
pp. 27-31
Author(s):  
Stanimir Stojiljkovic ◽  
Sanja Mazic ◽  
Dejan Nesic ◽  
Sasko Velkovski ◽  
Dusan Mitrovic
Keyword(s):  
Endurance Training ◽  
Ventilatory Threshold ◽  
Exercise Program ◽  
Test Results ◽  
Final Test ◽  
Experimental Conditions ◽  
Cardiovascular Endurance ◽  
Before And After ◽  
Test Velocity ◽  
Male Subjects

Introduction The purpose of this research was to compare changes in running velocity at ventilatory threshold with the veliocity at VO2max, before and after the eight-week exercise program. Material and methods 32 male subjects (age: 22.3? 2.5 years, height: 179.8? 7.6 cm, body mass: 76.8? 9.0 kg) performed a progressive test for ventilatory threshold (VT) measurement and VO2max on treadmill. After 8 weeks of endurance training (3 times per week, 30 to 70 min, in different zones in respect to the ventilatory threshold) the performed the same test. Results Running velocity at ventilatory threshold increased significantly (p=0.000I), between initial and final measurements (10.88?2.09, 12.94? 1.90 km/h, respectively): as well as at VO2max H4.63?1.86, 16.44?1.59 km/h, respectively). At the initial test, velocity at ventilatory threshold was 74.11% of VO2max. At the final test, velocity at ventilatory threshold was 78.43% of VO2max. Running velocity at ventilatory threshold has significantly increased at final test (p=0.001). Discussion Running velocity at ventilatory threshold has significantly increased after eight weeks of endurance training (p -0.001), when expressed in absolute values and percentage of velocity at vo2max. Conclusion Comparison between the initial and final test demonstrated a significant increase of observed variables, under experimental conditions: at final test running velocity has increased at ventilatory threshold, in respect to absolute values and expressed as percentage at VO2max. .

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