This study investigates the effects of whole-body cryotherapy vs. cold-water immersion after a muscle damage protocol.
In this study the effects of a single- or multiple whole body cryotherapy (-135°C for max. 2 minutes) vs. cold water immersion (10°C for 15 min) and a passive control group (20 min supine position) are compared. These effects are examined after a muscle damage protocol of the frontal thighs (3 x 30 jumps). The objective recovery parameters are vertical jump, maximum voluntary contraction of the anterior thigh muscle, heart rate, blood pressure, skin-core body temperature and the oxygen saturation of the thigh muscles. Subjective recovery parameters are the local muscle soreness details and the general exhaustion details. The parameters are directly and 24, 48 and measured 72 hours after exposure. The aim is to elicit the effects of whole body cooling to make recommendations to. The current scientific knowledge situation calls for further studies to whole body cooling.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
30
The whole body cryotherapy device is able to generatue temperatures up to -195°C for 3 minutes. In this study, we generate temperatures of -135°C for 2 minutes as proposed in the manual. The participant will enter the cabin in cold-resistant shoes and will remain in standing position during the whole procedure. The cold temperature is generated by vaporization of liquid nitrogen.
The tub will be filled with cold water up to the sternal level of the participants. Adding ice will ensure a constant temperature. The participant will sit inside the tub during the whole procedure.
Fachhochschule Südschweiz
Landquart, Switzerland
Vertical Jump
Vertical Jump will be assessed in cm with the Just Jump Plate
Time frame: 72 hours
Maximum voluntary contraction
Maximum voluntary contraction will be assessed in kg on a custom made ergometer chair (COR 1)
Time frame: 72 hours
Delayed onset of muscle soreness
DOMS will be assessed using a visual analog scale (0-10 cm)
Time frame: 72 hours
Ratings of perceived exertion
RPE will be assessed using a BORG scale (6-20)
Time frame: 72 hours
Skin temperature
Skin temperature of the neck, right scapula, right dorsal hand, right frontal thigh, right shin are assessed in °C using thermocouples (iButtons)
Time frame: 60 minutes
Core temperature
Core temperature will be assessed in °C via the ear
Time frame: 60 minutes
Cardiovascular measurements
Heart rate will be measured in beats per minute and bloop pressure will be measured in mm/Hg using an blood pressure monitor
Time frame: 60 min
Oxygenation of the right thigh muscle
Oxygenation of the right thigh muscle will be assessed in % using a near infrared spectometer.
Time frame: 60 min
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