Effects of Endurance-, Strength-, and Concurrent Training on Cytokines and Inflammation

The present study verified the effect of a concurrent training (CT) session in different orders, Strength + Endurance (SE) and Endurance + Strength (ES), on the glycemic control. The crossover study included 20 young men, 21.80 ± 2.90 years, IMC ≥ 23 kg/m2, 24.83 ± 3.68% of fat, who performed both CT sessions separated by 72 h. Capillary glycemia was measured at pre, immediately post the end of each exercise session, and during the recovery period at 30, 60, and 90 minutes. The comparisons were performed using Two-way ANOVA (order and time), paired test-t for the area under the curve, as well as Cohen’s d effect size. There was effect of exercise order (F = 5.973; p = 0.03), effect of time (F = 18.345; p = 0.001) and interaction between order and time (F = 2.835; p = 0.03). The area under the curve presented a significant reduction (p = 0.03, effect size = 0.51, moderate). The area under the curve was smaller in SE, as well as glucose concentrations at end and post 30 min of exercise, suggesting better efficiency in glycemic control compared to ES.

Download Full-text

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

10.53350/pjmhs2115102945 ◽

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.

Download Full-text

The Effect of a Concurrent Training on Rest Level of Leptin in non-Athletes

International Conference on Earth, Environment and Life sciences (EELS-2014) Dec. 23-24, 2014 Dubai (UAE) ◽

10.15242/iicbe.c1214126 ◽

2014 ◽

Keyword(s):

Concurrent Training

Download Full-text

COPPER ALLOY No. 172

Alloy Digest ◽

10.31399/asm.ad.cu0165 ◽

1966 ◽

Vol 15 (6) ◽

Keyword(s):

Thermal Conductivity ◽

Fracture Toughness ◽

Corrosion Resistance ◽

Shear Strength ◽

Copper Alloy ◽

Precipitation Hardening ◽

Heat Treating ◽

General Corrosion ◽

Endurance Strength ◽

Resistance To Wear

Abstract Copper Alloy No. 172 is a precipitation hardening beryllium-copper alloy having high elastic and endurance strength, good electrical and thermal conductivity, excellent resistance to wear, and high resistance to general corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness and fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Cu-165. Producer or source: Copper and copper alloy mills.

Download Full-text

BERYLCO 25S

Alloy Digest ◽

10.31399/asm.ad.cu0003 ◽

1952 ◽

Vol 1 (3) ◽

Keyword(s):

Mechanical Properties ◽

High Performance ◽

Precipitation Hardening ◽

Elevated Temperatures ◽

Heat Treating ◽

Good Resistance ◽

Subzero Temperatures ◽

Endurance Strength ◽

Wear And Corrosion ◽

Resistance To Wear

Abstract Berylco 25S alloy is the high-performance beryllium-copper spring material of 2 percent nominal beryllium content. It responds to precipitation-hardening for maximum mechanical properties. It has high elastic and endurance strength, good electrical and thermal conductivity, excellent resistance to wear and corrosion, high corrosion-fatigue strength, good resistance to moderately elevated temperatures, and no embrittlement or loss of normal ductility at subzero temperatures. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-3. Producer or source: Beryllium Corporation.

Download Full-text

Trunk muscle endurance, strength and flexibility in rural subsistence farmers and urban industrialized adults in western Kenya

American Journal of Human Biology ◽

10.1002/ajhb.23611 ◽

2021 ◽

Author(s):

Benjamin E. Sibson ◽

Victoria A. Tobolsky ◽

Timothy M. Kistner ◽

Nicholas B. Holowka ◽

Josphine Jemutai ◽

...

Keyword(s):

Trunk Muscle ◽

Muscle Endurance ◽

Subsistence Farmers ◽

Western Kenya ◽

Endurance Strength

Download Full-text

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

Sports Medicine ◽

10.1007/s40279-021-01426-9 ◽

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.

Download Full-text