Antonio Paoli,
1 Tatiana Moro,1 Giuseppe Marcolin,1 Marco Neri,2 Antonino Bianco,3 Antonio Palma,3 and Keith Grimaldi4
1 Tatiana Moro,1 Giuseppe Marcolin,1 Marco Neri,2 Antonino Bianco,3 Antonio Palma,3 and Keith Grimaldi4Abstract
Background
The benefits of exercise are well established but one major barrier for many is time. It has been proposed that short period resistance training (RT) could play a role in weight control by increasing resting energy expenditure (REE) but the effects of different kinds of RT has not been widely reported.
Methods
We tested the acute effects of high-intensity interval resistance training (HIRT) vs. traditional resistance training (TT) on REE and respiratory ratio (RR) at 22
hours post-exercise. In two separate sessions, seventeen trained males carried out HIRT and TT protocols. The HIRT technique consists of: 6 repetitions, 20seconds rest, 2/3 repetitions, 20 secs rest, 2/3 repetitions with 2′30″ rest between sets, three exercises for a total of 7 sets. TT consisted of eight exercises of 4 sets of 8–12 repetitions with one/two minutes rest with a total amount of 32 sets. We measured basal REE and RR (TT0 and HIRT0) and 22hours after the training session (TT22 and HIRT22).
hours post-exercise. In two separate sessions, seventeen trained males carried out HIRT and TT protocols. The HIRT technique consists of: 6 repetitions, 20seconds rest, 2/3 repetitions, 20 secs rest, 2/3 repetitions with 2′30″ rest between sets, three exercises for a total of 7 sets. TT consisted of eight exercises of 4 sets of 8–12 repetitions with one/two minutes rest with a total amount of 32 sets. We measured basal REE and RR (TT0 and HIRT0) and 22hours after the training session (TT22 and HIRT22).Results
HIRT showed a greater significant increase (p<0.001) in REE at 22hours compared to TT (HIRT222362±118 Kcal/d vs TT22 1999±88 Kcal/d). RR at HIRT22 was significantly lower (0.798±0.010) compared to both HIRT0 (0.827±0.006) and TT22 (0.822±0.008).
<0.001) in REE at 22hours compared to TT (HIRT222362±118 Kcal/d vs TT22 1999±88 Kcal/d). RR at HIRT22 was significantly lower (0.798±0.010) compared to both HIRT0 (0.827±0.006) and TT22 (0.822±0.008).Conclusions
Our data suggest that shorter HIRT sessions may increase REE after exercise to a greater extent than TT and may reduce RR hence improving fat oxidation. The shorter exercise time commitment may help to reduce one major barrier to exercise.
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