Hormonal and Physiological Adaptations to High-Intensity Interval Training in Professional Male Canoe Polo Athletes.
This study compared the effects of 2 different high-intensity interval training (HIIT) programs in professional male canoe polo athletes. Responses of peak oxygen uptake (VO2peak), ventilatory threshold (VT), peak and mean anaerobic power output (PPO and MPO), blood volume, and hormonal adaptations to HIIT were examined. Male athletes (n = 21, age: 24 ± 3 years; height: 181 ± 4 cm; mass: 85 ± 6 kg; and body fat: 12.9 ± 2.7%) were randomly assigned to one of 3 groups (N = 7): (a) (G1) interval paddling with variable volume (6, 7, 8, 9, 9, 9, 8, 7, 6 repetitions per session from first to ninth session, respectively) × 60 second at lowest velocity that elicited VO2peak (vVO2peak), 1:3 work to recovery ratio; (b) (G2) interval paddling with variable intensity (6 × 60 second at 100, 110, 120, 130, 130, 130, 120, 110, 100% vVO2peak from first to ninth session, respectively, 1:3 work to recovery); and (c) (GCON) the control group performed three 60 minutes paddling sessions (75% vVO2peak) per week for 3 weeks. High-intensity interval training resulted in significant (except as shown) increases compared with pretest, in VO2peak (G1 = +8.8% and G2 = +8.5%), heart rate at VT (b·min) (G1 = +9.7% and G2 = +5.9%) and (%maximum) (G1 = +6.9%; p = 0.29 and G2 = +6.5%), PPO (G1 = +9.7% and G2 = +12.2%), MPO (G1 = +11.1%; p = 0.29 and G2 = +16.2%), total testosterone (G1 = +29.4% and G2 = +16.7%), total testosterone/cortisol ratio (G1 = +40.9% and G2 = +28.1%), and mean corpuscular hemoglobin (G1 = +1.7% and G2 = +1.3%). No significant changes were found in GCON. High-intensity interval paddling may improve both aerobic and anaerobic performances in professional male canoe polo athletes under the conditions of this study.
1Department of Exercise Physiology, Islamic Azad University, Ardabil Branch, Ardabil, Iran;2Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Islamic Azad University, Karaj Branch, Karaj, Iran;3Department of Physical Education and Sports Sciences, Tarbiat Modares University, Tehran, Iran; and4Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Shahid Rajaee Teacher Training University, Tehran, Iran.
Mohsen
M
Sheykhlouvand
Erfan
E
Khalili
Hamid
H
Agha-Alinejad
Mohammadali
M
Gharaat
D000222:Adaptation, Physiological; D000328:Adult; D015308:Anaerobic Threshold; D001810:Blood Volume; D006339:Heart Rate; D006454:Hemoglobins / Q000378:metabolism; D006801:Humans; D006854:Hydrocortisone / Q000097:blood; D008297:Male; D064797:Physical Conditioning, Human / Q000379:methods* / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology; D011897:Random Allocation; D012767:Ships; D013177:Sports / Q000502:physiology*; D013739:Testosterone / Q000097:blood; D055815:Young Adult
D006454:Hemoglobins; D013739:Testosterone; D006854:Hydrocortisone