Effects of Muscle Fatigue Induced by Countermovement Jumps on Efficacy Parameters of Instep Ball Kicking in Soccer

2017 ◽  
Vol 33 (2) ◽  
pp. 105-111 ◽  
Author(s):  
Víctor Torreblanca-Martinez ◽  
Fernando M. Otero-Saborido ◽  
José A. Gonzalez-Jurado
Keyword(s):  
Muscle Fatigue ◽  
Fatigue Test ◽  
Young Male ◽  
Soccer Players ◽  
Maximal Velocity ◽  
Jump Height ◽  
Significant Difference ◽  
Before And After ◽  
Instep Kick ◽  
Efficacy Parameters

The purpose was to study the effects of muscle fatigue induced by countermovement jumps (CMJ) on instep kick foot velocity in young male soccer players. Fifteen under-18 soccer players from a professional club performed maximal velocity instep kicks before and after a fatigue protocol that consisted of continuous CMJ. Foot velocity at impact without fatigue, foot velocity at impact with fatigue, CMJ height without fatigue, maximum jump height in fatigue test, and CMJ height change in fatigue test on a dynamometric platform were measured. There was a significant difference between jump height with and without fatigue (P = .00; ES = 0.8), but there were no significant differences between kicking with fatigue and without fatigue (P = .580, ES = 0.10). In conclusion, although the protocol was intense enough to generate fatigue in the muscles involved in CMJ, there were no significant differences in kicking velocity under fatigue conditions with respect to kicking without fatigue in the soccer players studied.

scholarly journals Influence of Counter Movement Jump Session with Different Rest Intervals on Muscle Damage and Soreness

2021 ◽  
Vol 5 ◽  
pp. 3
Author(s):  
Lara E Silva ◽  
Vanessa C Rodrigues ◽  
Gisele R Vicente ◽  
Marco Machado
Keyword(s):  
Muscle Soreness ◽  
Young Male ◽  
Serum Creatine Kinase ◽  
Rest Interval ◽  
Countermovement Jump ◽  
Counter Movement Jump ◽  
Significant Difference ◽  
Alpha Level ◽  
Before And After ◽  
Rest Intervals

Objectives: Plyometrics has been used in sports training and many aspects of this modality are poorly understood. This study measures the magnitude of variations of serum creatine kinase (CK) activity and perceived muscle soreness after one session of Countermovement Jump (CMJ) session and compares 1 and 3 minutes rest intervals between each sets.Methods: A group of 30 young male was dividing in two groups and performed ten sets of ten CMJ with 1 or 3 minutes rest interval between sets. Before and after session (24, 48, and 72-h) they informed the muscle soreness perception and blood samples were collected for dosage of serum CK activity. Two (time) x Two (treatment) ANOVA was used to test differences in serum CK activity and muscle soreness. The alpha level was set at 0.05.Results: Serum CK activity measured 48 h after session augments ~2 and ~1.5 times in 1 min and 3 min rest interval respectively. No significant difference between groups that rests 1 or 3 minutes between sets was found. Muscle soreness rises 24 h after session without significant differences between groups.Conclusions: The findings show that the CMJ increases perceived muscle soreness and increases the serum CK activity, and the intervals of rest do not modulate these variables.

Salivary Cortisol Responses and Session Ratings of Perceived Exertion to a Rugby Match and Fatigue Test

2017 ◽  
Vol 124 (3) ◽  
pp. 649-661 ◽  
Author(s):  
P. C. Caetano Júnior ◽  
M. L. Castilho ◽  
L. Raniero
Keyword(s):  
Fatigue Test ◽  
Salivary Cortisol ◽  
Perceived Exertion ◽  
Cortisol Response ◽  
Ratings Of Perceived Exertion ◽  
Perceived Effort ◽  
Significant Difference ◽  
Before And After ◽  
Cortisol Responses ◽  
Rugby Players

This study compared the effects of an official rugby match and a fatigue test on the salivary cortisol responses of 13 rugby players. We also examined the relationship between this cortisol response and session ratings of perceived exertion (session-RPE). We collected saliva before and after the match and fatigue test and assessed physical effort intensity via session-RPE using a CR-10 scale. We measured cortisol concentration by enzyme-linked immunosorbent assays. Results were greater session-RPE and cortisol concentrations for the rugby match, compared with the fatigue test. There was a significant difference between cortisol concentrations obtained pre- and postmatch ( p < .022) and significant correlations between cortisol response and session-RPE sampling in both the rugby match ( r = .81; p < .001) and fatigue test ( r = .91; p < .001). This study provides evidence of greater perceived effort and higher cortisol concentrations in actual competition versus a fatigue test. Our data further support session-RPE as a relatively inexpensive close correlate of a stress biomarker (cortisol response). Thus, session-RPE can be used by coaches as a valid indication of training loads and adequate recovery time after exertion.

scholarly journals Modeling and Validation of Fatigue and Recovery of Muscles for Manual Demolition Tasks

2022 ◽  
Vol 19 (2) ◽  
pp. 930
Author(s):  
Cannan Yi ◽  
Fan Tang ◽  
Kai-Way Li ◽  
Hong Hu ◽  
Huali Zuo ◽  
...  
Keyword(s):  
Muscle Fatigue ◽  
Fatigue Test ◽  
Perceived Exertion ◽  
Recovery Test ◽  
Work Related ◽  
Before And After ◽  
Recovery Models ◽  
Human Participants ◽  
Forceful Exertion ◽  
Fatigue Recovery

Manual demolition tasks are heavy, physically demanding tasks that could cause muscle fatigue accumulation and lead to work-related musculoskeletal disorders (WMSDs). Fatigue and recovery models of muscles are essential in understanding the accumulation and the reduction in muscle fatigue for forceful exertion tasks. This study aims to explore the onset of muscle fatigue under different work/rest arrangements during manual demolition tasks and the offset of fatigue over time after the tasks were performed. An experiment, including a muscle fatigue test and a muscle fatigue recovery test, was performed. Seventeen male adults without experience in demolition hammer operation were recruited as human participants. Two demolition hammers (large and small) were adopted. The push force was either 20 or 40 N. The posture mimicked that of a demolition task on a wall. In the muscle fatigue test, the muscle strength (MS) before and after the demolition task, maximum endurance time (MET), and the Borg category-ratio-10 (CR-10) ratings of perceived exertion after the demolition task were measured. In the muscle fatigue recovery test, MS and CR-10 at times 1, 2, 3, 4, 5, and 6 min were recorded. Statistical analyses were performed to explore the influence of push force and the weight of the tool on MS, MET, and CR-10. Both muscle fatigue models and muscle fatigue recovery models were established and validated. The results showed that push force affected MET significantly (p < 0.05). The weight of the tool was significant (p < 0.05) only on the CR-10 rating after the first pull. During the muscle fatigue recovery test, the MS increase and the CR-10 decrease were both significant (p < 0.05) after one or more breaks. Models of MET and MS prediction were established to assess muscle fatigue recovery, respectively. The absolute (AD) and relative (RD) deviations of the MET model were 1.83 (±1.94) min and 34.80 (±31.48)%, respectively. The AD and RD of the MS model were 1.39 (±0.81) N and 1.9 (±1.2)%, respectively. These models are capable of predicting the progress and recovery of muscle fatigue, respectively, and may be adopted in work/rest arrangements for novice workers performing demolition tasks.

scholarly journals Effect of 9.3 μm CO2 and 2.94 μm Er:YAG Laser vs. Bur Preparations on Marginal Adaptation in Enamel and Dentin of Mixed Class V Cavities Restored With Different Restorative Systems

2021 ◽  
Vol 2 ◽  
Author(s):  
Clara Isabel Anton y Otero ◽  
Enrico Di Bella ◽  
Ivo Krejci ◽  
Tissiana Bortolotto
Keyword(s):  
Fatigue Test ◽  
High Speed ◽  
Er:Yag Laser ◽  
Marginal Adaptation ◽  
Class V ◽  
Significant Difference ◽  
Before And After ◽  
Universal Adhesives ◽  
Almost All ◽  
Post Hoc

This study aimed to compare marginal adaptation in enamel and dentin before and after aging of laser vs. bur-prepared mixed class V cavities restored by different restorative systems. Seventy two caries-free human molars were distributed to nine experimental groups; cavities were prepared using two different lasers: a handpiece -integrated 2.94 μm Er:YAG laser at 4.5 W, 300 mJ, and 0.75 W, 50 mJ with 15 Hz (LiteTouch, Light Instruments, Israel) and a novel CO2 laser at 12.95 W, 19.3 mJ, and 4.1 W, 6.11 mJ with 671 Hz (Solea 9.3 μm, Convergent Dental, USA). Cavities prepared with conventional diamond burs (Intensiv, Switzerland) in a red contra angle at high speed under maximal water cooling served as control. Cavities were prepared under simulation of dentinal fluid and restored using three different self-etching universal adhesives in combination with three nanohybrid composites, applied in two layers: Scotchbond Universal with Filtek Supreme XTE (3M, USA), G-Premio BOND with Essentia Universal (GC, Japan), and OptiBond Universal with Harmonize Universal (Kerr, USA). After restorations' polishing and simultaneous thermal (5–50°C, 2 min each) and mechanical loading (max. 49 N; 200,000 cycles), replicas of restoration margins were examined under SEM at × 200 magnification. Percentages of continuous margins (CMs) were quantified before and after the fatigue test and statistically compared (two-way ANOVA with Fisher's least significant difference [LSD] post hoc test). Significant differences were found in almost all groups between the results before and after the fatigue test, as well as between the different preparation tools and restorative materials (p &lt; 0.05). Traditional bur preparations are confirmed as gold standard in enamel and dentin, as all three tested restorative systems provide results of marginal adaptation of more than 80% CM after loading. Er:YAG laser preparations can be equally effective in combination with SBU/Filtek Supreme XTE. CO2 laser ablation could not provide convincing results with the tested self-etching restorative systems. Marginal adaptation has been highly dependent on the substrate and showed impaired adhesion, especially in enamel. Scotchbond Universal/Filtek Supreme XTE showed the highest and most stable values of CM. The other two restorative systems were highly dependent on the preparation device of the substrate.

scholarly journals Biomechanical Responds of Instep Kick between Different Positions in Professional Soccer Players

2009 ◽  
Vol 22 (1) ◽  
pp. 21-27 ◽  
Author(s):  
Mohammadtaghi Khorasani ◽  
Noor Osman ◽  
Ashril Yusof
Keyword(s):  
Angular Velocity ◽  
Lower Extremity ◽  
Digital Video ◽  
Lower Leg ◽  
Soccer Players ◽  
Video Cameras ◽  
Professional Soccer ◽  
Significant Difference ◽  
Ball Velocity ◽  
Instep Kick

Biomechanical Responds of Instep Kick between Different Positions in Professional Soccer PlayersThe purpose of this study was to investigate some selected biomechanical characteristics of lower extremity between professional soccer defenders, midfielders and strikers. The kicking motions of dominant legs were captured from fifteen Olympic professional soccer players; (height: 181.93 ± 7.03 cm; mass: 70.73 ± 10.85 kg; age: 20.8 ± 0.77 years), volunteered to participate in this study, using four digital video cameras. There were significant differences between midfielders and defenders in (1) lower leg angular velocity (p ≤ 0.001), (2) thigh angular velocity (p ≤ 0.001), (3) lower leg net moment (p ≤ 0.001), (4) thigh net moment (p ≤ 0.001), and (5) ball velocity (p ≤ 0.012). There were significant differences between midfielders and strikers in lower leg net moment (p ≤ 0.001). There were significant differences between strikers and defenders in; (1) lower leg angular velocity (p ≤ 0.001), (2) thigh angular velocity (p ≤ 0.001), (3) lower leg net moment (p ≤ 0.001), (4) thigh net moment (p ≤ 0.001), and (5) ball velocity (p ≤ 0.024). In conclusion, midfielders can perform soccer instep kicking strongly and faster than defenders and there is, however, no significant difference between midfielders and strikers, but midfielders' ball velocity is higher than strikers' ball velocity.

scholarly journals Physical and Physiological Responses during the Stop-Ball Rule During Small-Sided Games in Soccer Players

Sports ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 117
Author(s):  
Jamel Halouani ◽  
Kais Ghattasi ◽  
Mohamed Amine Bouzid ◽  
Thomas Rosemann ◽  
Pantelis T. Nikolaidis ◽  
...  
Keyword(s):  
Performance Enhancement ◽  
Training Stimulus ◽  
Body Height ◽  
Soccer Players ◽  
Maximal Velocity ◽  
Total Distance ◽  
Professional Soccer ◽  
Significant Difference ◽  
Acceleration And Deceleration ◽  
Significant Performance

Small-sided games (SSGs) are a recommended training method for significant performance enhancement, and training efficiency. The stop-ball (SSG-SB) effects on physical responses (e.g., acceleration, deceleration, sprints, total distance, and indicator of workload) have not been investigated yet. This study aimed to investigate the effects of the SSG-SB compared to the small-goals SSG (SSG-SG) on physical and heart rate (HR) responses at high intensity (total distance (>18 km/h)), sprints (>18 km/h), and acceleration and deceleration (>3 m/s²) during a 4 vs. 4 SSG format in youth professional soccer players. Sixteen male elite young soccer players (mean ± SD body height, 176.5 ± 6.3 cm; age, 18.3 ± 0.7 years; body weight, 73.4 ± 7.2 kg) performed two forms of SSGs, i.e., SSG-SB or SSG-SG, for 4 × 4 min with a recovery of 2 min between sets. Data were compared using the t-test. The SSG-SB induced a significantly higher mean HR (180.0 ± 2.0 vs. 173.0 ± 3.0 beats per minute; p < 0.05) compared to the SSG-SG. Likewise, the SSG-SB was significantly higher compared to the SSG-SG for total distance (2580 ± 220.3 vs. 2230 ± 210 m; p < 0.001), player load (98.07 ± 12.5 vs. 89.4 ± 10.5; p < 0.05), sprint distance (7.9 ± 2.3 vs. 5.2 ± 2.0 m; p < 0.05), acceleration (15.6 ± 2.75 vs. 12.5 ± 1.75; p < 0.05), and deceleration (17.3 ± 3.20 vs. 14.4 ± 2.55; p < 0.05). However, no significant difference was found between the SSG-SG and the SSG-SB for maximal velocity, power, and sprints duration. This study provides new information about the effectiveness of the SSG-SB as a training stimulus for soccer.

Floor Composition Affects Performance and Muscle Fatigue Following a Basketball Task

2000 ◽  
Vol 16 (2) ◽  
pp. 157-168 ◽  
Author(s):  
Jefferson W. Streepey ◽  
M. Melissa Gross ◽  
Bernard J. Martin ◽  
Sundravalli Sudarsan ◽  
Catherine M. Schiller
Keyword(s):  
Muscle Fatigue ◽  
Human Performance ◽  
Knee Extensor ◽  
Electromyographic Activity ◽  
Jump Height ◽  
Basketball Players ◽  
Wood Floor ◽  
Before And After ◽  
Voluntary Contractions ◽  
The Relationship

The relationship between playing surface and muscle fatigue was examined in 22 male subjects performing a simulated basketball task on a conventional wood floor and less stiff composite floor. Force and electromyographic activity (EMG) were measured during maximum and submaximum (10% of maximum) voluntary contractions of knee extensor and ankle plantarflexor muscles before and after completion of the simulated basketball task. Jump height was evaluated during the task, and perceived fatigue was assessed at the end of the task. Although not all subjects jumped significantly higher on the composite floor compared to the wood floor. competitive basketball players showed a significant improvement in jump height (3.4 cm. 6%) when jumping on the composite floor. Perceived fatigue was significantly lower for the composite floor (21.7%) than the wood floor (30.2%). The objective measures indicated the occurrence of fatigue; however, force and EMG magnitudes obtained during maximum exertions were not sensitive lo floor types. Post-task increase in EMG magnitude indicated a significant fatigue effect for the soleus muscle on the wood floor only. These findings suggest that the composite floor may benefit human performance without increasing fatigue during basketball-related activities.

scholarly journals Effects of Strength vs. Plyometric Training on Change of Direction Performance in Experienced Soccer Players

Sports ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 144
Author(s):  
Håvard Guldteig Rædergård ◽  
Hallvard Nygaard Falch ◽  
Roland van den Tillaar
Keyword(s):  
Training Program ◽  
Training Group ◽  
Soccer Players ◽  
Physical Conditioning ◽  
Plyometric Training ◽  
Change Of Direction ◽  
Approach Distance ◽  
Significant Difference ◽  
Before And After ◽  
Improved Performance

The purpose of this study was to compare how 6 weeks of strength- vs. plyometric training, which were matched upon direction of motion and workload, influences change of direction (COD) performance. Twenty-one experienced male soccer players (age: 22.2 ± 2.7) were pair-matched into a strength- (n = 10) and a plyometric (n = 11) training group. CODs of 45°, 90°, 135° and 180° performed from either a 4 m or 20 m approach distance were compared before and after intervention. Results showed no significant difference between groups. Significant effects were only found within the plyometric training group (−3.2% to −4.6%) in 90°, 135° and 180° CODs from 4 m and a 180° COD from a 20 m approach distance. Individual changes in COD performances showed that with the 4 m approach at least 55% and 81% of the strength and plyometric training group, respectively, improved COD performance, while with the 20 m approach at least 66% of both groups improved performance. This study showed that the plyometric training program can improve most CODs, with angles over 90°, although this is dependent on the distance approaching the COD. Considering the limited time of implementing physical conditioning, in addition to regular soccer practice in most soccer environments, the current plyometric training program can be advantageous in improving CODs at maximal intensity.

scholarly journals Effect of lower extremity strength training done in young male soccer players on some physiological, motoric and technical parameters during preparation periodGenç erkek futbolcularda hazırlık döneminde yapılan alt ekstremite kuvvet antrenmanlarının bazı fizyolojik motorik ve teknik parametrelere etkisi

2018 ◽  
Vol 15 (2) ◽  
pp. 1193
Author(s):  
İlyas Özdemir ◽  
Adem Civan
Keyword(s):  
Anaerobic Power ◽  
Young Male ◽  
Soccer Players ◽  
Control Group ◽  
Leg Strength ◽  
Paired Samples ◽  
Significant Difference ◽  
Post Test ◽  
Preparation Period ◽  
Experimental Group

The purpose of this study is examining effects of soccer training and lower extremity strength training done in addition to it during 8 weeks of preparation period on leg strength, anaerobic and aerobic power, speed, flexibility, passing the ball, shooting the ball and dribbling parameters of young male soccer players. For this purpose, some motoric and technical tests were applied to young soccer players and solution was sought for research's problem within the scope of research. Totally 45 students consisting of 15 sedentary and 30 soccer players who play in Trakya Fener Sports Club; 15 of them 1st experimental group 15 of them 2nd experimental group took part in research. Leg strength, vertical jump, flexibility, 20m speed and shuttle run tests were conducted to determine the motoric abilities. Mor ve Christian soccer ability skill test consisting of dribbling, passing and shooting tests was conducted to determine ability levels particular to soccer. One-Sample Kolmogorov-Smirnov tests were conducted to determine whether data shows normal distribution or not. Paired–Samples T Test was used in in-group comparisons, Variance Analysis was used in intergroup comparisons, Tukey HSD multiple comparison test was used to determine from which group difference result. Level 0.05–0.01 was accepted for relevance of difference. With respect to in-group pre-test and post-test values of 8 weeks preparation period trainings done in preseason; statistically significant difference was found in leg strength, anaerobic power, MakVO2, flexibility and shooting parameters in 1st and 2nd experimental groups, also in passing and 20m speed parameters in 1st experimental group and just in 20m speed parameter in control group (P<0,05). However, in dribbling parameter, statistically significant difference was not found in all groups (P>0,05). In intergroup comparisons, statistically significant difference was found in leg strength, anaerobic power in the pre-test and post-test parameters and statistically significant difference was found in speed, shooting, passing and flexibility in pre-test parameters between 1st, 2nd experimental groups and control group. Also intergroup significant difference of 1st experimental group from 2nd experimental group and control group and difference of 2nd experimental group from control group in MakVO2, speed, flexibility, passing and shooting parameters according to values in the final test (P<0,05). In contrast, in pre-test and post-test values in body weight and dribbling, intergroup significant difference was not determined in just pre-test value in MakVO2 (P>0,05). Extended English summary is in the end of Full Text PDF (TURKISH) file.  ÖzetBu çalışmanın amacı; 8 haftalık hazırlık dönemi süresince uygulanan, futbol antrenmanları ve ek olarak yapılan alt ekstremite kuvvet antrenmanlarının genç erkek futbolcuların; bacak kuvveti, anaerobik ve aerobik güç, sürat, esneklik, pas verme, şut atma ve top sürme parametrelerine olan etkisinin araştırılmasıdır. Bu amaçla araştırma kapsamında genç futbolculara bazı motorik ve teknik testler uygulanmış ve araştırmanın problemine çözüm aranmıştır. Araştırmaya Kırklareli Trakya Fener Spor Kulübünde oynayan 30 futbolcudan; 15’i 1. deney grubu, 15’i 2. deney ve 15 sedanter toplam 45 öğrenci katılmıştır. Motorik yetenekleri belirlemek için bacak kuvveti, dikey sıçrama, esneklik, 20m sürat ve mekik koşusu testleri yapılmıştır. Futbola özgü yetenek düzeylerini tespit etmek için ise top sürme, pas ve şut testlerini içeren Mor ve Christian futbol yetenek testi uygulanmıştır. Verilerin normal dağılım gösterip göstermediğine One–Sample Kolmogorov–Smirnov testiyle bakılmıştır. Grup içi karşılaştırmalarda Paired–Samples T Testi, gruplar arası karşılaştırmalarda Varyans Analizi, farkın hangi gruptan kaynaklandığının tespiti için ise Tukey HSD çoklu karşılaştırma testi kullanılmıştır. Farkın anlamlılığı için 0.05–0.01 seviyesi kabul edilmiştir.[VVG1]  Sezon öncesi uygulanan 8 haftalık hazırlık dönemi antrenmanlarının grup içi ön test ve son test değerleri bakımından; 1. ve 2. deney gruplarında, bacak kuvveti, anaerobik güç, MakVO2, esneklik ve şut parametrelerinde, ayrıca 1. deney grubunda pas ve 20m sürat parametresinde (P<0,01), kontrol grubunda ise sadece 20m sürat parametresinde istatistiksel olarak anlamlı bir farklılık tespit edilmiştir (P<0,05). Top sürme parametresinde ise tüm gruplarda istatistiksel olarak anlamlı bir farklılık tespit edilememiştir (P>0,05). Gruplar arası karşılaştırmalarda ise 1. ve 2. deney gruplarıyla kontrol grubu arasında; bacak kuvveti, anaerobik güç ön test ve son test parametrelerinde, sürat, şut, pas ve esneklikte ise ön test parametrelerinde anlamlı bir farklılık tespit edilmiştir. Ayrıca 1. deney grubunun 2. Deney grubu ve kontrol grubundan, 2. Deney grubunun da kontrol grubundan; MakVO2, sürat, esneklik, pas ve şut parametrelerinde son test değerlerine göre gruplar arası anlamlı bir farklılık tespit edilmiştir (P<0,05). Buna karşın vücut ağırlığı ve top sürmede ön test ve son test değerlerinde, MakVO2’de ise sadece ön test değerinde gruplar arası anlamlı bir farklılık tespit edilememiştir (P>0,05).

The influence of osteopathic correction on the rate of various rhythms of the body

2019 ◽  
pp. 64-71 ◽  
Author(s):  
A. E. Chernikova ◽  
Yu. P. Potekhina
Keyword(s):  
Heart Rate ◽  
Respiratory Rate ◽  
Age Groups ◽  
Biomechanical Properties ◽  
Dispersion Analysis ◽  
The Body ◽  
Body Tissues ◽  
Age Related ◽  
Significant Difference ◽  
Before And After

Introduction. An osteopathic examination determines the rate, the amplitude and the strength of the main rhythms (cardiac, respiratory and cranial). However, there are relatively few studies in the available literature dedicated to the influence of osteopathic correction (OC) on the characteristics of these rhythms.Goal of research — to study the influence of OC on the rate characteristics of various rhythms of the human body.Materials and methods. 88 adult osteopathic patients aged from 18 to 81 years were examined, among them 30 men and 58 women. All patients received general osteopathic examination. The rate of the cranial rhythm (RCR), respiratory rate (RR) heart rate (HR), the mobility of the nervous processes (MNP) and the connective tissue mobility (CTM) were assessed before and after the OC session.Results. Since age varied greatly in the examined group, a correlation analysis of age-related changes of the assessed rhythms was carried out. Only the CTM correlated with age (r=–0,28; p<0,05) in a statistically significant way. The rank dispersion analysis of Kruskal–Wallis also showed statistically significant difference in this indicator in different age groups (p=0,043). With the increase of years, the CTM decreases gradually. After the OC, the CTM, increased in a statistically significant way (p<0,0001). The RCR varied from 5 to 12 cycles/min in the examined group, which corresponded to the norm. After the OC, the RCR has increased in a statistically significant way (p<0,0001), the MNP has also increased (p<0,0001). The initial heart rate in the subjects varied from 56 to 94 beats/min, and in 15 % it exceeded the norm. After the OC the heart rate corresponded to the norm in all patients. The heart rate and the respiratory rate significantly decreased after the OC (р<0,0001).Conclusion. The described biorhythm changes after the OC session may be indicative of the improvement of the nervous regulation, of the normalization of the autonomic balance, of the improvement of the biomechanical properties of body tissues and of the increase of their mobility. The assessed parameters can be measured quickly without any additional equipment and can be used in order to study the results of the OC.

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