title: Evaluation of physiological responses during recovery following three resistance exercise programs.
abstract: The present study was conducted to examine (a) whether there is an association between maximal oxygen uptake (Vo(2)max) and reduction in postexercise heart rate (HR) and blood lactate concentrations ([La]) following resistance exercise and (b) how intensity and Volume of resistance exercise affect postexercise Vo(2). Eleven regularly weight-trained males (20.8 +/- 1.3 years; 96.2 +/- 14.4 kg, 182.4 +/- 7.3 cm) underwent 4 sets of squat exercise on 3 separate occasions that differed in both exercise intensity and volume. During each testing session, subjects performed either 15 repetitions.set(-1) at 60% of 1 repetition maximum (1RM) (L), 10 repetitions.set(-1) at 75% of 1RM (M), or 4 repetitions.set(-1) at 90% of 1RM (H). During each exercise, Vo(2) and HR were measured before (PRE), immediately post (IP), and at 10 (10P), 20 (20P) 30 (30P), and 40 (40P) minutes postexercise. The [La] was measured at PRE, IP, 20P, and 40P. Decrease in HR (DeltaHR) was determined by subtracting HR at 10P from that at IP, whereas decrease in [La] (Delta[La]) was computed by subtracting [La] at 20P from that at IP. A significant correlation (p < 0.05) was found between Vo(2)max and DeltaHR in all exercise conditions. A significant correlation (p < 0.05) was also found between Vo(2)max and Delta[La] in L and M but not in H. The Vo(2) was higher (p < 0.05) during M than H at IP and 10P, while no difference was seen between L and M and between L and H. These results indicate that those with greater aerobic capacity tend to have a greater reduction in HR and [La] during recovery from resistance exercise. In addition, an exercise routine performed at low to moderate intensity coupled with a moderate to high exercise volume is most effective in maximizing caloric expenditure following resistance exercise.
authors.affiliation: The College of New Jersey, Ewing, New Jersey 08628, USA. kang@tcnj.edu
authors.forename: Jie
authors.initials: J
authors.lastname: Kang
authors.forename: Jay R
authors.initials: JR
authors.lastname: Hoffman
authors.forename: Joohee
authors.initials: J
authors.lastname: Im
authors.forename: Barry A
authors.initials: BA
authors.lastname: Spiering
authors.forename: Nicholas A
authors.initials: NA
authors.lastname: Ratamess
authors.forename: Kenneth W
authors.initials: KW
authors.lastname: Rundell
authors.forename: Shoko
authors.initials: S
authors.lastname: Nioka
authors.forename: Joshua
authors.initials: J
authors.lastname: Cooper
authors.forename: Britton
authors.initials: B
authors.lastname: Chance
mesh_terms: D000222:Adaptation, Physiological / Q000502:physiology*; D000328:Adult; D015444:Exercise / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology; D010101:Oxygen Consumption / Q000502:physiology; D010806:Physical Education and Training / Q000379:methods*; D010809:Physical Fitness / Q000502:physiology; D020127:Recovery of Function
chemical_list: D019344:Lactic Acid