Banca de QUALIFICAÇÃO: KARLA DANIELY FELIX PEREIRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : KARLA DANIELY FELIX PEREIRA
DATE: 19/03/2026
TIME: 15:00
LOCAL: Remoto
TITLE:

Effects of cryo-immersion on clinical, functional, neuromuscular, and
biochemical markers of exercise-induced muscle damage in CrossFit® practitioners: A randomized, blinded clinical trial.

 

KEY WORDS:

cryo-immersion, muscle damage, exercise, CrossFit®

PAGES: 30
BIG AREA: Ciências da Saúde
AREA: Fisioterapia e Terapia Ocupacional
SUMMARY:

Introduction: Cryo-immersion (CI), or cold water immersion (CWA),
has become a widely used post-exercise recovery modality, especially
in the sports context, when the goal is to use strategies that allow the
athlete to recover more quickly. It has been suggested that CI
promotes beneficial physiological and/or biochemical effects capable
of causing clinical, functional, and neuromuscular changes when
compared to other "passive" interventions. Considering the sports
environment, the additional stress of competitive sports, and the nature
of CrossFit®, a high-intensity functional training modality composed of
workouts organized into routines – the Workouts of the Day (WODs) –
with rapid and successive repetitions with limited or absent recovery
time between sessions, and knowing that small changes can generate
significant differences in performance, the need for studies that
adequately emulate the competitive environment and evaluate the
effect of recovery strategies on the ability to quickly return athletic
performance to its natural state increases. Objective: To verify the effect of cryo-immersion on clinical, functional, neuromuscular, and
biochemical markers of exercise-induced muscle damage. Methods:
This is a randomized, controlled, and blinded clinical trial composed of
60 (sixty) Crossfit® practitioners of both sexes, at an intermediate
level, i.e., with 1 to 5 years of experience in the sport. These
participants will undergo a muscle damage induction protocol and will
be subjected to cryo-immersion (n=30) or will be part of the control
group (n=30), and will be divided into four groups, with blocking by
sex: high-volume exercise cryo-immersion group (gCIAVE), low-
volume exercise cryo-immersion group (gCIBVE), low-volume exercise
control group (gCBVE), and high-volume exercise control group
(gCAVE). Sample size calculation was performed a priori using the
G*Power software based on a two-way mixed variance analysis. To
estimate the effect size, means and standard deviations extracted from
previous data were used, resulting in an estimated effect size f = 0.34.
A correlation between repeated measures of 0.5 and a sphericity
correction (ε) of 1.0 were assumed. A significance level of 0.05 and a
statistical power of 0.80 were adopted. Expected results: Cryo-
immersion is expected to prove itself a valid, safe, efficient, easy-to-
apply, and reliable alternative for post-exercise performance recovery
in this population by modifying not only subjective aspects but also
clinical, functional, neuromuscular, and biochemical objectives.

 

 

COMMITTEE MEMBERS:
Externo ao Programa - 2275864 - CAIO ALANO DE ALMEIDA LINS - nullExterno à Instituição - GLAUKO ANDRE DE FIGUEIREDO DANTAS - UFDPar
Presidente - 2566849 - WOUBER HÉRICKSON DE BRITO VIEIRA