Resting Bradycardia, Enhanced Postexercise Heart Rate Recovery and Cardiorespiratory Fitness in Recreational Ballroom Dancers.

Autor: Cruz CJGD; a University of Brasilia., Molina GE; a University of Brasilia., Porto LGG; a University of Brasilia., Junqueira LF Jr; a University of Brasilia.
Jazyk: angličtina
Zdroj: Research quarterly for exercise and sport [Res Q Exerc Sport] 2017 Sep; Vol. 88 (3), pp. 371-376. Date of Electronic Publication: 2017 May 16.
DOI: 10.1080/02701367.2017.1318202
Abstrakt: Purpose: In a cross-sectional study design, we evaluated the resting heart rate (HR baseline ) and exercise and postexercise stress test-related chronotropic responses in male practitioners of recreational ballroom dancing (BD; n = 25, M age = 26.6 ± 6.1 years) compared to a control group of insufficiently active nondancers (CG; n = 25, M age = 25.9 ± 4.5 years).
Method: All participants underwent a submaximal exercise test. At 85% of the maximal predicted HR, the recovery protocol was started, and heart rate recovery (HRR) was recorded during 1-min intervals for 5 min.
Results: Compared with CG, BD showed lower HR baseline (70 beats per minute [bpm] vs. 62 bpm, respectively, U = 143, p < .05, ES = .46), lower preexercise HR (94 bpm vs. 86 bpm, U = 157, p < .05, ES = .42), longer exercise test duration (346 s vs. 420 s, U = 95.5, p < .05, ES = .59), and higher HRR for 5 min postexercise (U = 1.29-1.89, p < .05, ES = .33-.50) as follows: 1st min (32 bpm vs. 40 bpm), 2nd min (45 bpm vs. 53 bpm), 3rd min (51 bpm vs. 58 bpm), 4th min (55 bpm vs. 59 bpm), and 5th min (59 bpm vs. 63 bpm). The coefficient of HRR from the 1st min to the 5th min postexercise was similar in both groups (U = 229-311, p > .05, ES = < .10-.22).
Conclusion: Heightened cardiovascular functional status characterized by favorable enhanced chronotropic dynamics appears to occur in practitioners of recreational ballroom dancing, which suggests that this modality of exercise may result in health benefits.
Databáze: MEDLINE
Externí odkaz: