The effect of compression heat and cold therapy on the recovery of athletes

INTERVENTION: The experiment will be conducted according to a randomized crossover design where each participant performs the familiarization intervention and receives a 3‐minute Game Ready (GR) stimulation 3 days prior to the study. The 40 volunteers submitted by MMA trainers according to the inclusion and exclusion criteria will be randomly divided into 2 groups and subjected to different GR stimulations in the cross‐match design. Simple randomization methods will be used to assign MMA fighters to groups of subsequent MMA volunteers by flipping a coin, where drawing the obverse will mean assigning the next participants to group A and the reverse ‐ to group B. The implementation of the intervention is planned in the Provita Medical Center, which is a clinical facility registered with the relevant authorities and subject to National regulations. The GR therapy described in the study scheme to be used during the study on the health of the participants is controlled by a paramedic, the measurements will be made by appropriately trained students, and the entire application of the intervention is managed by the project manager, Robert Trybulski PhD, PT. The other project participants at the stage of data preparation and publication are: Prof. dr hab. Aleksandra Zebrowska – head of the Department of Physiological and Medical Sciences of the Academy of Physical Education in Katowice Dr. kf ‐ physiotherapist Robert Trybulski ‐ assistant professor at the Medical Faculty of GWSH Katowice Grzegorz Biolik, MD, PhD – Department of Vascular Surgery , Phlebology and Angiology of the Upper Silesian Medical Center in Katowice GR therapy consists of applying a pressure of 15 to 75 mmHg to the muscles through a compression cuff, local contrast therapy or monotherapy with a temperature of 4 to 45°C CONDITION: Optimization of recovery in sports ; Not Applicable PRIMARY OUTCOME: The following primary outcome measures are assessed at rest, 5 minutes and 24 and 48h after GR therapy:; 1. Muscle tone (F = Hz), stiffness (S = N/m), flexibility, and relaxation (ms), are measured with a myotonometer (MyotonPRO AS, Myoton Ltd, Estonia 2021) ; 2. Muscle pain threshold (PT‐kG or N) is measured with the FDIX algesimeter (Wagner Instruments, Greenwich, CT, USA 2013); 3. Muscle strength (W), is measured with a hand dynamometer (EH106 China 2020); 4. Perfusion units (PU) are measured using laser Doppler flowmetry (LDF), (Perimed, Sweden 2004); 5. Muscle power (RSI ‐ relative strength index) is measured behind Measuring platform Force Decks (Vald Performance Australia 2012); SECONDARY OUTCOME: Muscle tone (Hz), stiffness (N/m), flexibility (NaN), pressure pain threshold (N/cm), microcirculatory response described in non‐reference units (PU) and maximum isometric force (Fma X[kgf]) measured with LDF, myonometer, platform, algesimeter, dynamometer ‐ as described in the primary outcome measures (between 10:00 and 12:00) at rest, 2 minutes before GR stimulation and 2 minutes after GR stimulation 5min, 24h, 48h. INCLUSION CRITERIA: 1. Randomly selected MMA fighters with a minimum of 3 years of training experience in MMA, training at least 4 times a week 2. Age between 18‐40 years old