Antrenörlük Eğitimi Bölümü Koleksiyonu

Bu koleksiyon için kalıcı URI

https://hdl.handle.net/20.500.12491/158

Listeleniyor 1 - 20 / 27

Evaluation of the knowledge, attitudes, and behaviors of the students studying in the coaching education department regarding the utilization of nutritional ergogenic supplement
(Lahore Medical Research Center LLP, 2022) Yarar, Hakan; Eskici, Günay; Yılmaz, Sevil Karahan; Kuca, Volkan; Yazıcı, Bayram
Aim: The purpose of this study is to ascertain the knowledge, attitudes, and behaviors of students studying in the Coaching Education Department of the Faculty of Sport Sciences regarding the utilization of nutritional ergogenic supplements. Methods: 61.5% of the participants were male (n=264), 38.5% (n=166) were female. Data were collected by conducting an online questionnaire. 19.5 % of students reported using ergogenic nutritional supplement products. The students received an average score of 3.1 +/- 0.7 on the benefit sub-dimension of the attitude scale toward nutritional ergogenic supplement products, 2.7 +/- 0.6 on the side effects and ethical sub-dimension, and 2.9 +/- 0.7 on the natural nutrition sub-dimension. Results: A significant difference has been detected in the mean scores of students on the benefit sub-dimension depending on their gender, sports branch, and use of nutritional supplement products, on the side effects and ethical sub-dimension depending on their gender, class, and use of nutritional supplement products, and on the natural nutrition sub-dimension depending on their gender and use of nutritional supplement products (p<0.05). Conclusion: Students gave the expected answer to most of the questions regarding the use of nutritional ergogenic supplements. Observing the beneficial effect of taking the sports nutrition course on the responses, reveals the importance of education once again.
The effects of different recovery methods on anaerobic performance in combat sports athletes
(Univ Palackeho & Olomouci, Fak Telesne Kultury, 2021) Yarar, Hakan; Gök, Ümit; Dağtekin, Ahmet; Saçan, Yunus; Eroğlu, Hüseyin
Background: Athletes, who engage in combat sports, perform often several matches in a day during competitions. For this reason, recovery is a very important factor between matches. There are many different recovery methods applied by athletes and it is very important to know which one is more suitable for anaerobic performance. Objective: The aim of this study was to investigate the effects of different recovery methods on anaerobic performance in combat sports athletes. Methods: Thirteen experienced international level elite combat sports athletes (age 20.5 +/- 1.6 years, body height 175.3 +/- 4.5 cm, body mass 73.8 +/- 7.9 kg, body fat 11.4 +/- 3.9%, training experience 7.5 +/- 3.4 years) have participated voluntarily in this study. Athletes were involved in passive recovery (PR), cold water immersion (CWI) and active recovery (AR) methods after countermovement jump and Wingate anaerobic test. Also, body temperature and rating of perceived exertion were evaluated. In this study, a randomized crossover design was used and applications lasted three days. All measurements were performed at three different times (baseline, 1st and 2nd session) in a day. Two-way analysis of variance with repeated measures was used for statistical analysis. Results: For the countermovement jump there was a significant increase after CWI and AR. A significant decrease was found in the Fatigue index after CWI recovery. Body temperature was increased after CWI, AR, and PR. Rating of perceived exertion has increased in AR. Moreover, there were no significant differences were found in peak power and mean power. Conclusions: The results indicate that during intermittent recovery, CWI positively impacted countermovement jump and fatigue index. Also, AR has positively affected countermovement jump performance, while negatively affected the rating of perceived exertion. Thus our findings suggest that 10 min of CWI and AR can be adopted in competitions when successive matches take place
Influence of physical and anthropometric properties on sprint swimming performance
(Lahore Medical Research Center Llp, 2021) Yarar, Hakan; Barug, Dilek; Bostan, Asiye; Kaya, Abdurrahim; Aydin, Erbil Murat
Aim: The purpose of the present study was to investigate the effects of physical and anthropometric properties on sprint swimming performance. Methods: Fifteen healthy and moderately active male swimmers [(mean +/- SD) age: 21.06 +/- 2.52 years; stature: 176.73 +/- 0.72cm; body mass: 75.35 +/- 13.71 kg; body fat %: 12.57 +/- 7.04; training age; 7.4 +/- 2.29 years; training session/week: 4.0 +/- 1.06] were participated as volunteer in this study. To determine the physical performance of the athletes; anaerobic power (countermovement jump), auditory reaction time, sit and reach test, and back extension strength was applied. To evaluate anthropometric measurements; stature, body mass, midstyliondactylion, handbreadths, arm length, arm span, biacromial breadths, sitting stature, foot length, foot breadths, leg length, and shank length measurements were conducted. 50m and 100m freestyle swimming tests were applied to determine swimming performance. Results: Statistically significant correlations were found between 50m freestyle swimming performance and stature (r=-0.606; p=0.01), arm length (r=-0.606; p=0.01), arm span (r=-0.562; p=0.02), leg length (r=-0.619; p=0.01) and shank length (r=-0.631; p=0.01). Likewise, there was a statistically significant correlation between 100m front crawl swimming performance and arm length (r=-0.521; p=0.04). Conclusions: Anthropometric variables are important for 50 and 100 m freestyle swimming performance. Especially stature, arm length, arm span, leg length, and shank length. The respondents should consider anthropometric characteristics that are important for swimming performance.
A novel adaptable isometric strength analysis and exercise development system design
(Sage Publications Ltd, 2021) Fidan, Murat; Bayrak, Alper; Karlı, Ümid
In this study, a low-cost and adaptable isometric strength measurement and exercise development system are described. The implemented system consists of mechanical structure, force measurement sensor, electronic circuit, and computer software. Isometric-isotonic (via spring resistance) strength analysis and various exercise programs can be applied with the system. The developed system has a lower cost compared to its counterparts in the literature and has a structure that can be adapted to different machines and measuring methods. The operability and reliability of the isometric strength measurement and exercise development system have been proven by calibration tests.
Comparison of exhaustive concentric and eccentric contractions: Effects on muscle damage and EMG responses during recovery period
(Ios Press, 2019) Çankaya, Tamer; Karlı, Ümid; Buğdaycı, Güler
BACKGROUND/OBJECTIVE: The purpose of this study was to examine muscle damage and EMG responses during recovery period following exhaustive concentric and eccentric contractions. METHODS: Fifteen football players participated in this study. In order to evaluate the recovery period after the muscle damage exercise protocol, the expected damage was provoked by concentric and eccentric contractions. The EMG data obtained from Rectus Femoris muscle and levels of CK, LDH, and Myoglobin analysed from plasma were recorded before, immediately after and post 24th, 48th, 72nd, 168th hours of the exercise. RESULTS: Save a significant change in the maximum EMG value of Rectus Femoris muscle, no difference was found among other variables (p > 0.05). While there was no difference (p > 0.05) between the base values (PER) accepted as reference of CK, LDH, Myoglobin and levels at other hours after exercise, there was also no difference (p > 0.05) among values of CK, LDH, Myoglobin between eccentric and concentric contractions. CONCLUSIONS: As a result, various EMG measures and muscle damage responses were recorded during the recovery period after intensive resistance exercises. However the responses during recovery period did not differ by the contraction type.
Effects of Ramadan fasting on physical activity level and body composition in young males
(Int Journal Applied Exercise Physiology, 2019) Kocaağa, Tuğba; Tamer, Kemal; Karlı, Ümid; Yarar, Hakan
Purpose: The purpose of this study was to investigate the effects of Ramadan intermittent fasting on body composition, dietary intake and physical activity level of young males. Materials and Methods: Thirty three healthy young males aged between 18-25 years were participated as volunteers in this study. The study focused on three periods: the week before Ramadan (BRF), the first week of Ramadan (RF-FW) and the last week of Ramadan (RF-LW). Dietary intake (caloric and liquid intake, protein, fat and carbohydrate content), body composition measurements (body mass, body fat percentage and fat free mass) were conducted during BRF and RF-LW and physical activity questionnaire was completed during each period. Paired t test and Friedman test were used for statistical analysis. Results: According to the statistical analyses, body mass, body fat percentage, daily caloric intake, protein and carbohydrate content of the diet were significantly (p<0.05) reduced in Ramadan. On the contrary, no influence was seen on fat free mass, liquid intake and fat content of the diet. Moreover, there was a significant decrease (p<0.05) in total caloric expenditure caused by physical activity during RF-FW. However, no difference was shown between BRF and RF-LW regarding to total caloric expenditure. Similar to total caloric expenditure moderate PA was also decreased in RF-FW. On the other hand, caloric expenditure caused by high intensity physical activity was significantly (p<0.05) dropped both during RF-FW and RF-LW. Conclusion: Ramadan intermittent fasting was effective on body weight loss with just fat mass. Intensive physical activity patterns, total caloric intake and diet consumption except liquid and fat intake were reduced during Ramadan. As a consequence, performing moderate intensity activity during the month of Ramadan could be advised to the people, because of the beneficial effect on body composition.
The investigation of weight loss profiles on weight classes sports athletes
(Int Journal Applied Exercise Physiology, 2019) Yarar, Hakan; Türkyılmaz, Recep; Eroğlu, Hüseyin
Purpose: The purpose of this study was to determine that weight loss profiles of weight category sports athletes. Materials and Methods: 502 active (371 male, 131 female) weight category sports athletes who have lost weight before the competition were participated as a volunteer in this study. The participants consist of Wrestling, Boxing, Weight lifting, Taekwondo, Karate, Judo and Kick box athletes. For the data collection the questionnaire of "Athlete Weight Loss Methodology and Effects Scale" was used Yarar et al.[1]. For statistical analysis descriptive statistics, arithmetic mean (x), standard deviations (ss) and percentage frequency (%) of subjects were calculated on SPSS version 20.0 (statistical package for the social sciences). Results: According to statistical analysis first weight reduction age was 14.72 +/- 2.45 year, average weight loss frequency in a season (time) was 2.62 +/- 1.49, and maximum weight loss ratio in a time was 5.33 +/- 2.72 kg. At the same time 69.52% of the athletes, lose weight in the last 2 weeks before the competition. Furthermore the reason of weight loss 33.6% was body weight is between two categories, 23.1% had good competitors in their category and 23% in order to be faster and more durable. Conclusions: We conclude that the athletes started to lose weight in early ages and many athletes lost weight short time before the competition
Nutritional knowledge and status of coaches in various sporting codes
(Stellenbosch Univ, 2016) Eskici, Günay; Yarar, Hakan; Koç, Hürmüz
Coaches have an important responsibility in the lives of athletes since athletes often use them as a source of advice for various performance-related issues, such as the nutritional regime. This descriptive study set out to identify the nutritional knowledge and nutritional status of coaches from various sport codes, as well as their nutrition recommendations for their athletes. The study included 165 individuals from different sporting codes i.e. team, strength, explosive power and endurance sports. Coaches were given a self-administered questionnaire with 76 questions. Most coaches had poor diet choices. For instance, the number of coaches who regularly consume vegetables, fruits and fish was low and most skipped meals attributable to limited opportunities and/or not feeling hungry. 76% of the 165 coaches alleged that they had sufficient knowledge about nutrition and 82% of the coaches provided knowledge about nutrition to their athletes. There was a significant difference among coaches of different sport codes in their recommendations concerning nutritional ergogenic supplements (p<0.01). The coaches of strength sport mostly recommended proteins/amino acid supplements. Coaches predominantly gave the correct or expected answer to both general nutritional knowledge and sport nutritional knowledge questions. However, the suggestions that coaches made to their athletes about training nutrition was inadequate.
Obesity, food intake and exercise: relationship with Ghrelin
(Walter De Gruyter Gmbh, 2015) Sönmez, Gül Tiryaki; Vatansever, Şerife; Ölçücü, Burçin; Schoenfeld, Brad
Obesity, a disorder of body composition, is defined by a relative or absolute excess of body fat. In general adult population, obesity has been associated with a diverse array of adverse health outcomes, including major causes of death such as cancer, diabetes, cardiovascular disease, as well as functional impairment from problems such as osteoarthritis and sleep apnea. Ghrelin is a newly discovered peptide hormone which plays an important role in obesity. It is a powerful, endogenous orexigenic peptide and has a crucial function in appetite regulation, as well as short -and long-term energy homeostasis. In the presence of increased obesity, decreased physical activity, and high food consumption, the relationship between exercise, appetite, food intake and ghrelin levels has important implications. In this review, we discuss the effect of acute and chronic exercise performance on appetite, food intake and ghrelin and their relationships.
Impact of exercise modes on appetite markers
(Kamla-Raj Enterprises, 2015) Vatansever, Şerife; Ölçücü, Burçin; Tiryaki-Sönmez, Gül
This study investigates the effects of different acute exercise modes on appetite marker ratings. Twelve healthy male subjects participated voluntarily in the study and written informed consent was obtained from all subjects before participation. The subjects underwent four, 120 minute trials (exercise and control) in a randomized crossover design. These included three exercises and one control. In the exereise trials, the subjects performed three different exercise protocols (60 minutes exercise and 60 minutes recovery). In the control trial, subjects rested for 2 hours. The ratings of subjective feelings of appetite markers were reported on 100 mm visual analogue scales (VAS) at baseline and at 20, 40, 60,80, 90, 120 minutes after baseline. The visual analogue scales (VAS) were used to measure the following appetite markers: (i) hunger, (ii) fullness, (iii) desire to eat, and (iv) prospective food consumption. Repeated-measures, and two-factor ANOVA were used to examine differences between the four trials over time to note appetite marker changes. Between-trial differences at each time point were examined using a one-way ANOVA and the Bonferroni post hoc tests when significant interactions were found. The two-way ANOVAs revealed significant (P<0.05) trial x time effects (P<0.05) and time (P<0.05) effects in all appetite markers except hunger. The exercise modes are not different from control (P>0.05) in any of the appetite markers except for the feeling of satiety, and the differences between exercise modes are that, cornbined exercises decrease the feeling of satiety more than combined exercises, and caused desire to eat and prospective food consumption more than resistance exercises (P<0.05). In conclusion, this finding lends support for a role of exercise in weight management.
Correlation between physical fitness and international tennis number (ITN) levels among children tennis players
(Kamla-Raj Enterprises, 2015) Ölçücü, Burçin; Vatansever, Şerife
The purpose of the present research was to determine the anthropometric, body composition, physical, fitness parameters and ITN scores and levels among children tennis players and to define the relationships between these anthropometric, body composition, physical fitness parameters and ITN scores and levels. 30 female children tennis players between eight to tenyears of age, who have the Turkish Tennis Federation club licence and individual licences were included in the study. The subjects were tested on four different performance variables, namely, the anthropometric, body composition, physical fitness and ITN levels profiles. For data analysis, the Pearson coefficient was calculated. According_ to the research findings, there are no significant relationships between ITN total scores and any of the anthropometric and body composition values. On the other hand, there are significant positive relationships between ITN total scores and ball throwing, vertical jumps, standing broad jumps, and reverse sif-ups. There is a negative significant relation between ITN total scores and auditory reactions. Similarly, there are no significant relationships between ITN values and any of the anthropometric and body composition values. There are negative significant relationships between ITN values and ball throwing, vertical jumps, standing broad jumps, and reverse sit-ups. There is a positive significant relation between ITN values and auditory reactions. In conclusion, this study indicated that ball throwing, vertical jumps, standing broad jumps and back extension variables were statistically linked to specific performance levels identified via the ITN levels.
Warm-up: A case study on maximal oxygen consumption as it relates to acute stretching
(Sciendo, 2008) Yüktaşır, Bekir
The aim of this study was to determine the acute effects of static and Proprioceptive Neuromuscular Facilitation (PNF) stretches on maximal oxygen consumption (VO2 max). Ten physically active men (mean +/- SD, 23.80 +/- 1.54 years, 70.60 +/- 9.70 kg, 1.74.60 +/- 5.23 m), who were healthy students volunteered to take part in the study. The participants were subjected to Static and PNF stretching exercises. After the interventions, the Bruce treadmill protocol was applied to measure VO2 max values. The expired gases were collected and analyzed continuously using the Cortex Metalyzer II. Analysis of variance showed significant main effects for interventions (F-(2,F-18)=10.74, p<.05) on VO2 max. The main result of this study showed that both static and PNF stretching exercises improved VO2 max values.
Influence of ramadan fasting on anaerobic performance and recovery following short time high intensity exercise
(Journal Sports Science & Medicine, 2007) Karlı, Ümid; Güvenç, Alpay; Aslan, Alper; Hazır, Tahir; Açıkada, Caner
The aim of this study was to investigate the effects of Ramadan fasting on anaerobic power and capacity and the removal rate of lactate after short time high intensity exercise in power athletes. Ten male elite power athletes (2 wrestlers, 7 sprinters and 1 thrower, aged 20-24 yr, mean age 22.30 +/- 1.25 yr) participated in this study. The subjects were tested three times [3 days before the beginning of Ramadan (Pre-RF), the last 3 days of Ramadan (End-RF) and the last 3 days of the 4(th) week after the end of Ramadan (After-RF)]. Anaerobic power and capacity were measured by using the Wingate Anaerobic Test (WAnT) at Pre-RF, End-RF and After-RF. Capillary blood samples for lactate analyses and heart rate recordings were taken at rest, immediately after WAnT and throughout the recovery period. Repeated measures of ANOVA indicated that there were no significant changes in body weight, body mass index, fat free mass, percentage of body fat, daily sleeping time and daily caloric intake associated with Ramadan fasting. No significant changes were found in total body water either, but urinary density measured at End-RF was significantly higher than After-RF. Similarity among peak HR and peak LA values at Pre-RF, End-RF and After-RF demonstrated that cardiovascular and metabolic stress caused by WAnT was not affected by Ramadan fasting. In addition, no influence of Ramadan fasting on anaerobic power and capacity and removal rate of LA from blood following high intensity exercise was observed. The results of this study revealed that if strength-power training is performed regularly and daily food intake, body fluid balance and daily sleeping time are maintained as before Ramadan, Ramadan fasting will not have adverse effects on body composition, anaerobic power and capacity, and LA metabolism during and after high intensity exercise in power athletes.
Effects of different types of exercises on body composition in young men and women
(2013) Uçan, Yılmaz
The purpose of this study was to determine the effects of different types of exercises on body composition in young men and women. Thirty-seven physical education and sports college students participated in the study voluntarily. Height, body weight, body mass index, and waist-to-hip ratio measurements were held. Skinfold measurement taken from seven sites was conducted by a caliper and percent body fat values were calculated by using the Siri equation. After completing the pre-test measurements, the subjects were randomly assigned into one of these groups: aerobic exercise, resistance exercise, and combined (both aerobic and resistance). At the end of the 10-week training period, paired t-test results showed that there was a significant (p<0.05) decrease in the aerobic exercise and combined exercise group subjects' body weight, body mass index, waist-to-hip ratio, % body fat, and skinfold measurements. In the resistance exercise group, while there was a significant (p<0.05) decrease in the % body fat, skinfold, and waist-to-hip ratio values, changes in the body weight and body mass index were not significant (p>0.05). ANOVA test results revealed no significant differences among the exercise groups on body compositions. These results showed that aerobic and combined exercises had a decremental influence on the body weight, body mass index, % body fat, skinfold, and waist-to-hip ratio values. Resistance exercises showed an influence on decreasing % body fat rather than decreasing body weight.
Exercıse and hormones related to appetıte regulatıon
(American-Eurasian Network for Scientific Information, 2015) Ölçücü, Burçin; Vatansever, Şerife; Tiryaki-Sönmez, Gül; Schöenfeld, Brad Jon
Background: Obesity is spreading all around the world rapidly, especially in developed and developing countries, due to physical inactivity related to technological developments and increase in the consumption on energy rich food. Discovery of the new stimulants that affect various parts of the hypothalamus and produced from some peripheral tissues, and understanding of their functions better increase our knowledge of energy homeostasis. Objective: Especially, the discovery of obese gene (16kDa, ob) product released from adipose tissue, discovery of leptin known as satiety hormone, the discovery of ghrelin known as hunger hormone, and the discovery of obestatin, which is the product of the same gene with ghrelin and thought to resist the effects of ghrelin on food intake started a new era about the opinions on obesity. Results: Exercise is a nonpharmacological method used by itself or along with food-intake limitation in obesity treatment and body weight control. This review will attempt to update the knowledge of ghrelin, leptin and obestatin on the body weight regulation and the effect of exercise training on ghrelin, leptin and obestatin concentration. In conclusion, Conclusion: findings of the current studies on acute and chronic exercise conducted on human subjects that examined the effect of exercise on ghrelin, leptin and obestatin contradict with each other. Some of these differences may have resulted from differences between intensity, duration, and type of the exercise, or the features of the subjects, different research designs such as time of food intake. For this reason, many more studies using various subject groups and different methods are required in the subject field. © 2015 AENSI Publisher All rights reserved.
Investigation into the long-term effects of static and PNF stretching exercises on range of motion and jump performance
(2009) Yüktaşır, Bekir; Kaya, Fatih
The purpose of the present study was to investigate the long-term effects of two different stretching techniques on the range of motion (ROM) and on drop jump (DJ). DJ scores were assessed by means of a contact mat connected to a digital timer. ROM was measured by use of a goniometer. The training was carried out four times a week for 6 weeks on 10 subjects as passive static stretching (SS), and on 9 subjects as contract-relax PNF (CRPNF) stretching. The remaining nine subjects did not perform any exercises (control group). One-way Analysis of Variance (ANOVA) results indicated that the differences among groups on DJ were not statistically different (F(2,27)=.41, p>.05). ROM values were significantly higher for both stretching groups, while no change was observed for the control group. In conclusion, static and proprioceptive neuromuscular facilitation (PNF) stretching techniques improved the ROM, but neither of the stretching exercises had any statistically significant effect on the DJ scores. © 2007 Elsevier Ltd. All rights reserved.
Effects of exercise on leptin and acylated ghrelin hormones in trained males
(2010) Özen, Şerife; Sönmez, Gül; Yüktaşır, Bekir; Yalçın, Hasan; Buğdaycı, Güler
Ghrelin and Leptin hormones play roles in energy homeostasis and food intake. The purpose of this study was to examine the effects of moderate-intensity exercise on plasma acylated ghrelin and serum leptin levels. Seven trained male subjects (age: 19.42±0.97 yr, body mass: 70.6±4.0 kg, VO2max: 63.14±6.09 ml·kg-1·min-1) voluntarily participated in two, 1 hr trials (exercise and control) in a random crossover design. In the exercise condition, subjects ran on a treadmill for 60 min (from 10:00 to 11:00 am) at 50% of VO2max. In the control condition, subjects rested for the same duration. Blood samples were collected before and immediately following the exercise and control protocols. In the exercise condition, plasma acylated ghrelin was increased by 45% and serum leptin was significantly decreased by 17% (P<0.05) with no apparent changes in the control condition. In conclusion, acute exercises of long duration - moderate intensity lower leptin levels while increasing acyleted ghrelin.
Effect of 2 weeks vitamin E supplementation to the point of anaerobic threshold
(Taylor and Francis Ltd., 2017) Uçan, Yılmaz; Sönmez, Gül Tiryaki
The purpose of this study was to examine the effects of 400 mg vitamin E supplementation each day for two weeks on anaerobic threshold level. The study was done on volunteered male subjects (n=30) who were between the ages of 19-24 and they were students at the department of physical education and sports. In this study, Conconi test was used to determine the Anaerobic Threshold (AT) of the subjects and the True 750 S.O.F.T System treadmill was used to determine the AT and training intensity. Polar Heart Rate monitor was used to determine the heart rates of the subjects. Also, Roche Accutrend Lactate Analyser was used to determine the Blood Lactic Acid (BL) levels of the subjects. The subjects were divided randomly into three groups (vitamin E, placebo, and control). The subjects who were in the vitamin E and placebo groups took either vitamin E or placebo for two weeks. All measurements were taken before and after the supplementation period. Wilcoxon and Kruskal-Wallis methods were used to evaluate the effects of supplementation (p<0.05). The results of the study showed that there was no significant difference among the groups in all the parameters [Heart Rate at Anaerobic Threshold (ATHR), Running Speed at Anaerobic Threshold (ATRS), Blood Lactate at Anaerobic Threshold (ATBL), Maximal Running Distance (RDM), and Maximal Heart Rate (HRM)]. From these results, it may be concluded that the daily intake of 400 mg vitamin E for two weeks had no effect on the physical performance of this group. © Kamla-Raj 2017.
Atletlerde egzersizin tükürük alfa amilaz aktivitesi üzerine etkisi
(2013) Buğdaycı, Güler; Yüktaşır, Bekir; Özen, Şerife; Yalçın, Hasan Birol; Sönmez, Gül Tiryaki; Çakıcı, Hüsamettin
Amaç: Bu çalışma, tükürük alfa amilaz aktivitesinin egzersiz üzerine etkisi ve sempatik sinir sistemi ile ilişkisini göstermek amacıyla gerçekleştirilmiştir. Gereç ve Yöntem: Yaşları 18-21 arası değişen altı erkek sporcu randomize çapraz desen (crossover design) ile 4 saatlik iki denemeye (kontrol ve egzersiz) katıldılar. Atletler egzersiz denemesinde, maksimum oksijen tüketiminin %50’sinde 105 dakika, ve maksimum oksijen tüketiminin %75’inde 15 dakika koştular ve daha sonraki 2 saat istirahat ettiler. Katılımcı sporcular kontrol denemesinde 4 saat boyunca istirahat ettiler. Verilerin analizinde tekrarlayan ölçümlerde iki yönlü varyans analizi kullanıldı. Bulgular: Tekrarlı ölçümlerde iki yönlü varyans (ANOVA) analizi sonucu tAA’nin zamanla (Zaman: F=20.332: 1.690, p<0.001, etki alanı=0.670) her iki denemede de değiştiği (Deneme: F=52.99: 1, p<0.001, etki alanı=0.841) ve denemeler arasında da istatiksel olarak anlamlı (Zaman x Deneme: F=15.244:1.690, p<0.001, etki alanı=0.604) fark olduğu bulunmuştur. Sonuç: Atletlerde, uzun süreli akut aerobik egzersizin sempatik sistem aktivitesine etkisi, tükürük alfa amilaz aktivitesinin artış algoritması ile gösterilmiştir.
Egzersize bağlı iskelet kası hasarının güç, sürat ve denge performansına zamana bağlı etkisinin incelenmesi
(2018) Uçan, Yılmaz; Demirbaş, İsmail Can; Yasa, Elif; Bezer, Abdullah; Özcan, Ritvan; Aydın, Erbil Murat
Bu çalışmanın amacı; kas hasarı oluşturan bir egzersiz uygulamasının genç erkeklerin güç, sürat ve denge performansları üzerine zamana bağlı etkilerini araştırmaktır. Çalışmaya, kronik bir rahatsızlığı olmayan 10 erkek (yaş ortalaması 21,1 ± 3,4 yıl, boy ortalaması 171,2 ± 6,1 cm, vücut ağırlığı 64,1 ± 4,7 kg) gönüllü olarak katıldı. Çalışmanın ilk günü katılımcıların boy, vücut ağırlığı, kas ağrısı, kreatin kinaz (CK), denge, güç ve sürat testi normal değerleri alındı. İkinci gün egzersiz protokolü uygulandı ve protokol sonrasında 1, 24, 48 ve 72’nci saatlerde kas ağrısı, denge, güç, sürat testleri ve CK değerleri ölçüldü. Verilerin analizinde SPSS 19 paket programı kullanıldı. Veriler tekrarlı ölçümler için ANAOVA testi ile değerlendirildi. Egzersiz protokolü sonrası, 1, 24, 48 ve 72’inci saatlerde CK ve kas ağrısı değerlerinin normal değerlere göre anlamlı şekilde yüksek olduğu (p<0,05), denge ve güç değerlerinde anlamlı bir değişiklik olmadığı (p>0,05), sürat değerlerinde ise 24 ve 72’nci saatlerde anlamlı şekilde (p<0,05) artışlar olduğu görüldü. Kas hasarına neden olan egzersiz uygulamasının, CK ve kas ağrısı değerlerini artırırken sürat performansını olumsuz etkilediği bunun yanında denge ve güç performanslarına herhangi bir etki göstermediği sonuçlarına ulaşıldı.

Güncel Gönderiler