TY - JOUR
T1 - Acute Behavior of Oxygen Consumption, Lactate Concentrations, and Energy Expenditure During Resistance Training
T2 - Comparisons Among Three Intensities
AU - João, Gustavo A.
AU - Almeida, Gustavo P. L.
AU - Tavares, Lucas D.
AU - Kalva-Filho, Carlos Augusto
AU - Carvas Junior, Nelson
AU - Pontes, Francisco L.
AU - Baker, Julien S.
AU - Bocalini, Danilo S.
AU - Figueira, Aylton J.
N1 - Publisher Copyright:
© 2021 João, Almeida, Tavares, Kalva-Filho, Carvas Junior, Pontes, Baker, Bocalini and Figueira.
PY - 2021/12/15
Y1 - 2021/12/15
N2 - PurposeThis study aimed to compare the oxygen consumption, lactate concentrations, and energy expenditure using three different intensities during the resistance training sessions. MethodsA total of 15 men (22.9 ± 2.61 years) experienced in resistance training underwent 3 sessions composed of 8 exercises (chest press, pec deck, squat, lat pull-down, biceps curl, triceps extension, hamstring curl, and crunch machine), which were applied in the same order. The weight lifted differed among the sessions [high session: 6 sets of 5 repetitions at 90% of 1-repetition maximum (1-RM); intermediary session: 3 sets of 10 repetitions at 75% of 1-RM; and low session: 2 sets of 15 repetitions at 60% of 1-RM]. The oxygen consumption (VO2)—during and after (excess post-exercise oxygen consumption (EPOC)) the session, blood lactate concentration, and energy expenditure (i.e., the sum of aerobic and anaerobic contributions, respectively) were assessed. ResultsThe VO2 significantly decreased in the function of the weight lifting (F(2.28) = 17.02; p < 0.01; ηG2 = 0.32). However, the aerobic contributions significantly increase in the function of the weight lifting (F(2.28) = 79.18; p < 0.01; ηG2 = 0.75). The anaerobic contributions were not different among the sessions (p > 0.05; ηG2 < 0.01). Thus, the total energy expenditure during the session (kcal) significantly increased in the function of the weight lifting (F(2.28) = 86.68; p < 0.01; ηG2) = 0.75). The energy expenditure expressed in time unit (kcal·min−1) was higher in low session than in high session (F(2.28) = 6.20; p < 0.01; ηG2 = 0.15). ConclusionThe weight lifted during resistance training-induced different physiological responses, which induced higher energy expenditure per unit of time during the low session.
AB - PurposeThis study aimed to compare the oxygen consumption, lactate concentrations, and energy expenditure using three different intensities during the resistance training sessions. MethodsA total of 15 men (22.9 ± 2.61 years) experienced in resistance training underwent 3 sessions composed of 8 exercises (chest press, pec deck, squat, lat pull-down, biceps curl, triceps extension, hamstring curl, and crunch machine), which were applied in the same order. The weight lifted differed among the sessions [high session: 6 sets of 5 repetitions at 90% of 1-repetition maximum (1-RM); intermediary session: 3 sets of 10 repetitions at 75% of 1-RM; and low session: 2 sets of 15 repetitions at 60% of 1-RM]. The oxygen consumption (VO2)—during and after (excess post-exercise oxygen consumption (EPOC)) the session, blood lactate concentration, and energy expenditure (i.e., the sum of aerobic and anaerobic contributions, respectively) were assessed. ResultsThe VO2 significantly decreased in the function of the weight lifting (F(2.28) = 17.02; p < 0.01; ηG2 = 0.32). However, the aerobic contributions significantly increase in the function of the weight lifting (F(2.28) = 79.18; p < 0.01; ηG2 = 0.75). The anaerobic contributions were not different among the sessions (p > 0.05; ηG2 < 0.01). Thus, the total energy expenditure during the session (kcal) significantly increased in the function of the weight lifting (F(2.28) = 86.68; p < 0.01; ηG2) = 0.75). The energy expenditure expressed in time unit (kcal·min−1) was higher in low session than in high session (F(2.28) = 6.20; p < 0.01; ηG2 = 0.15). ConclusionThe weight lifted during resistance training-induced different physiological responses, which induced higher energy expenditure per unit of time during the low session.
KW - caloric cost
KW - energy expenditure (EE)
KW - EPOC
KW - resistance training (RT)
KW - strength training
UR - http://www.scopus.com/inward/record.url?scp=85121990105&partnerID=8YFLogxK
U2 - 10.3389/fspor.2021.797604
DO - 10.3389/fspor.2021.797604
M3 - Journal article
AN - SCOPUS:85121990105
SN - 2624-9367
VL - 3
JO - Frontiers in Sports and Active Living
JF - Frontiers in Sports and Active Living
M1 - 797604
ER -