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The interplay between internal and external load parameters during different strength training sessions in resistance-trained men.
Eur J Sport Sci. 2021 Jan; 21(1):16-25.EJ

Abstract

External load influences internal load in resistance training (RT). The purpose of the present study was to compare the total volume-load, perceptual and stress responses during three different RT protocols. Twelve resistance-trained men completed three different RT protocols with the back squat and bench press exercises: (1) power (POW) (5 sets of 6 repetitions at 50%1RM, 2-min of rest), (2) hypertrophy (HYP) (5 sets-to-failure at 75%1RM, 2-min of rest), and (3) strength (STR) (5 sets-to-failure at 90%1RM, 3-min of rest). Volume-load (kg × reps.), session rating of perceived exertion (sRPE), training impulse (TRIMP; reps. × sRPE), cortisol, immunoglobulin A (IgA), lactate, and creatine kinase (CK) were assessed before and/or after the sessions. HYP was the most demanding session in terms of volume-load (p < 0.001), TRIMP (p < 0.001), cortisol (p = 0.001), lactate (p < 0.001), and CK (p = 0.001). Despite POW exhibited a greater volume-load than STR (p = 0.016), the latter exhibiting a greater sRPE (p < 0.001), and a greater post-session CK (p = 0.05). However, the TRIMP of STR and POW were not statistically different (152 vs. 260 AU; p = 0.089). These specific responses could be meditated by the presence of muscular failure. When pooling all the sessions, significant correlations were revealed among external and internal stress markers (r = 0.35-0.80; p ≤ 0.05). The use of TRIMP could be recommended as a simple and valid monitoring tool which integrates into a single parameter the internal and the external loads of RT sessions.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Martorelli AS
Federal Institute of Goiás - IFG, Valparaíso, Brazil.
De Lima FD
College of Health Sciences, University of Brasília - UnB, Brasília, Brazil. College of Education and Health Sciences, University Center of Brasília - UniCEUB, Brasília, Brazil.
Vieira A
College of Physical Education, University of Brasília - UnB, Brasília, Brazil.
Tufano JJ
Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic.
Ernesto C
Physical Education, Catholic University of Brasília, Brasília, Brazil.
Boullosa D
Faculty of Health Sciences, University of Brasilia, Brasilia, Brazil. Graduate Program in Movement Sciences, INISA, Federal University of Mato Grosso do Sul, Campo Grande, Brazil.
Bottaro M
College of Physical Education, University of Brasília - UnB, Brasília, Brazil.

MeSH

AdultAnalysis of VarianceBiomarkersCreatine KinaseHumansHydrocortisoneHypertrophyImmunoglobulin ALactic AcidMaleMuscle DevelopmentMuscle StrengthPhysical ExertionResistance TrainingWeight LiftingYoung Adult

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32008472

Citation

Martorelli, André S., et al. "The Interplay Between Internal and External Load Parameters During Different Strength Training Sessions in Resistance-trained Men." European Journal of Sport Science, vol. 21, no. 1, 2021, pp. 16-25.
Martorelli AS, De Lima FD, Vieira A, et al. The interplay between internal and external load parameters during different strength training sessions in resistance-trained men. Eur J Sport Sci. 2021;21(1):16-25.
Martorelli, A. S., De Lima, F. D., Vieira, A., Tufano, J. J., Ernesto, C., Boullosa, D., & Bottaro, M. (2021). The interplay between internal and external load parameters during different strength training sessions in resistance-trained men. European Journal of Sport Science, 21(1), 16-25. https://doi.org/10.1080/17461391.2020.1725646
Martorelli AS, et al. The Interplay Between Internal and External Load Parameters During Different Strength Training Sessions in Resistance-trained Men. Eur J Sport Sci. 2021;21(1):16-25. PubMed PMID: 32008472.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The interplay between internal and external load parameters during different strength training sessions in resistance-trained men. AU - Martorelli,André S, AU - De Lima,Filipe D, AU - Vieira,Amilton, AU - Tufano,James J, AU - Ernesto,Carlos, AU - Boullosa,Daniel, AU - Bottaro,Martim, Y1 - 2020/02/13/ PY - 2020/2/6/pubmed PY - 2021/4/28/medline PY - 2020/2/4/entrez KW - Internal load KW - muscle hypertrophy KW - muscular power KW - muscular strength KW - perceptual responses KW - repetitions-to-failure KW - resistance training SP - 16 EP - 25 JF - European journal of sport science JO - Eur J Sport Sci VL - 21 IS - 1 N2 - External load influences internal load in resistance training (RT). The purpose of the present study was to compare the total volume-load, perceptual and stress responses during three different RT protocols. Twelve resistance-trained men completed three different RT protocols with the back squat and bench press exercises: (1) power (POW) (5 sets of 6 repetitions at 50%1RM, 2-min of rest), (2) hypertrophy (HYP) (5 sets-to-failure at 75%1RM, 2-min of rest), and (3) strength (STR) (5 sets-to-failure at 90%1RM, 3-min of rest). Volume-load (kg × reps.), session rating of perceived exertion (sRPE), training impulse (TRIMP; reps. × sRPE), cortisol, immunoglobulin A (IgA), lactate, and creatine kinase (CK) were assessed before and/or after the sessions. HYP was the most demanding session in terms of volume-load (p < 0.001), TRIMP (p < 0.001), cortisol (p = 0.001), lactate (p < 0.001), and CK (p = 0.001). Despite POW exhibited a greater volume-load than STR (p = 0.016), the latter exhibiting a greater sRPE (p < 0.001), and a greater post-session CK (p = 0.05). However, the TRIMP of STR and POW were not statistically different (152 vs. 260 AU; p = 0.089). These specific responses could be meditated by the presence of muscular failure. When pooling all the sessions, significant correlations were revealed among external and internal stress markers (r = 0.35-0.80; p ≤ 0.05). The use of TRIMP could be recommended as a simple and valid monitoring tool which integrates into a single parameter the internal and the external loads of RT sessions. SN - 1536-7290 UR - https://www.unboundmedicine.com/medline/citation/32008472/The_interplay_between_internal_and_external_load_parameters_during_different_strength_training_sessions_in_resistance_trained_men_ DB - PRIME DP - Unbound Medicine ER -