Neuromuscular Assessment Laboratory, School of Physical Education, Federal University of Pelotas, Pelotas, Brazil.
Sport Training and Physical Performance Research Group, School of Physical Education, Federal University of Pelotas, Pelotas, Brazil.
J Strength Cond Res. 2018 Jan;32(1):223-229. doi: 10.1519/JSC.0000000000002180.
Schaun, GZ and Del Vecchio, FB. High-intensity interval exercises' acute impact on heart rate variability: comparison between whole-body and cycle ergometer protocols. J Strength Cond Res 32(1): 223-229, 2018-Study aimed to compare the effects of 2 high-intensity interval training (HIIT) protocols on heart rate variability. Twelve young adult males (23.3 ± 3.9 years, 177.8 ± 7.4 cm, 76.9 ± 12.9 kg) volunteered to participate. In a randomized cross-over design, subjects performed 2 HIIT protocols, 1 on a cycle ergometer (Tabata protocol [TBT]; eight 20-second bouts at 170% Pmax interspersed by 10-second rest) and another with whole-body calisthenic exercises (McRae protocol; eight 20-second all-out intervals interspersed by 10-second rest). Heart rate variability outcomes in the time, frequency, and nonlinear domains were assessed on 3 moments: (a) presession; (b) immediately postsession; and (c) 24 hours postsession. Results revealed that RRmean, Ln rMSSD, Ln high frequency (HF), and Ln low frequency (LF) were significantly reduced immediately postsession (p ≤ 0.001) and returned to baseline 24 h after both protocols. In addition, LF/HF ratio was reduced 24 h postsession (p ≤ 0.01) and SD2 was significantly lower immediately postsession only in TBT. Our main finding was that responses from heart rate autonomic control were similar in both protocols, despite different modes of exercise performed. Specifically, exercises resulted in a high parasympathetic inhibition immediately after session with subsequent recovery within 1 day. These results suggest that subjects were already recovered the day after and can help coaches to better program training sessions with such protocols.
绍恩、GZ 和德尔维奇奥、FB。高强度间歇训练对心率变异性的急性影响：全身和自行车测力计方案的比较。J 力量与调理研究 32（1）：223-229，2018-本研究旨在比较两种高强度间歇训练（HIIT）方案对心率变异性的影响。12 名年轻成年男性（23.3±3.9 岁，177.8±7.4cm，76.9±12.9kg）自愿参加。在随机交叉设计中，受试者进行了 2 种 HIIT 方案，1 种在自行车测力计上进行（Tabata 方案[TBT]；8 个 20 秒的回合，以 170% Pmax 进行，每 10 秒休息一次），另一种则是全身健美操（McRae 方案；8 个 20 秒的全力间隔，每 10 秒休息一次）。在 3 个时刻评估心率变异性的时间、频率和非线性域的结果：（a）课前；（b）课后即刻；（c）课后 24 小时。结果表明，RRmean、Ln rMSSD、Ln 高频（HF）和 Ln 低频（LF）在课后即刻显著降低（p≤0.001），并在两种方案后 24 小时恢复到基线。此外，LF/HF 比值在课后 24 小时降低（p≤0.01），只有在 TBT 中，SD2 在课后即刻明显降低。我们的主要发现是，尽管运动模式不同，但两种方案中心率自主控制的反应相似。具体来说，运动导致了课后即刻高副交感神经抑制，随后在 1 天内恢复。这些结果表明，受试者在第二天已经恢复，可以帮助教练更好地用这些方案安排训练课程。
