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Influence of Exercise Order on Oxygen Uptake During Strength Training in Young Women

2009; Lippincott Williams & Wilkins; Volume: 23; Issue: 3 Linguagem: Inglês

10.1519/jsc.0b013e3181a2b3e4

1533-4287

Paulo Farinatti, Roberto Simão, Walace Monteiro, Steven J. Fleck,

Sports injuries and prevention

Farinatti, PTV, Simão, R, Monteiro, WD, and Fleck, SJ. Influence of exercise order on oxygen uptake during strength training in young women. J Strength Cond Res 23(3): 1037-1044, 2009-This study investigated the effect of resistance exercise order on the oxygen uptake (V̇o2) and energy expenditure (EE). Ten trained women (age, 22 ± 2 years; body mass index, 21 ± 2 kg·m−2; peak V̇o2, 42.2 ± 2.9 ml.kg−1.min−1) volunteered for the study. Data were collected in 5 nonconsecutive days: (day 1) assessment of the peak V̇o2 in a maximum effort ramp treadmill protocol; (days 2 and 3) determination of 10 repetition maximum (10RM) for the bench press (BP), machine shoulder press (SP), and pulley triceps extension (TE); and (days 4 and 5) performing 3 sets of each exercise with 3-minute rest intervals between sets and exercises until fatigue using 10RM in 2 sequences of opposite order (sequence A [SEQA]: BP, SP, TE; sequence B [SEQB]: TE, SP, and BP). Total V̇o2 was assessed during all exercises, recovery intervals, and for 20 minutes after the end of the sequences. Energy expenditure was estimated from net V̇o2 by subtracting rest values from total V̇o2. No difference was found between the sequences for the total V̇o2 (p = 0.68) and net energy cost (p = 0.29) (SEQA: 25.41 ± 6.51 l and 60.01 ± 29.26 kcal; SEQB: 24.81 ± 4.08 l and 57.02 ± 15.25 kcal; mean ± SD). Conversely, the V̇o2 in the rest intervals between sets was higher for BP when it was placed at the end of SEQ B, and the same occurred with TE in SEQ A. In conclusion, the V̇o2 was lower for a given exercise when it was performed first as compared with last in a training session for the upper limbs. However, these differences did not affect the overall V̇o2 or EE during sequences performed in the opposite exercise order.