Cengiz A. Effects of self-selected dehydration and meaningful rehydration on anaerobic power and heart rate recovery of elite wrestlers.
J Phys Ther Sci 2015;
27:1441-4. [PMID:
26157236 PMCID:
PMC4483414 DOI:
10.1589/jpts.27.1441]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 01/17/2015] [Indexed: 12/02/2022] Open
Abstract
[Purpose] This study aimed to verify the effects of self-directed weight loss on lower-
and upper-body power, fatigue index, and heart rate recovery immediately before a
meaningful competition (12 hours of recovery). In addition, this study tested the
hypothesis that weight loss provides advantages in strength and power, as the relative
power of the wrestlers is higher than that of opponents in the same weight class who do
not reduce weight. [Subjects and Methods] Eleven well-trained wrestlers volunteered for
the study. At baseline, their mean ± SD age, body mass, and height were 20.45 ±
2.69 years, 74.36 ± 9.22 kg, and 177 ± 5.71 cm, respectively. Repeated-measures one-way
analysis of variance was performed to analyze differences. [Results] Rapid weight loss
achieved by restriction of energy and fluid intake resulted in exercise-impaired decreases
in peak power and increased fatigue index. Moreover, weight loss by dehydration negatively
affected cardiovascular stability. [Conclusion] Most of the negative effects of rapid
weight loss disappear after a 12-hour recovery period, and relative peak power increases
after weight loss.
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