Background: Breathing exercises are widely used after cardiac surgery. The duration of exercises in the immediate postoperative period is not fully evaluated and only limited data regarding the effects of home-based breathing exercises after discharge from hospital have been published. Aim: The overall aim of this thesis was to evaluate the effects of deep breathing exercises with positive expiratory pressure (PEP) and describe lung function and respiratory muscle strength in patients undergoing cardiac surgery. Participants and settings: Adult participants (n=131) were randomised to perform either 30 or 10 deep breaths with PEP per hour during the first postoperative days (Study I): the main outcome was oxygenation, assessed by arterial blood gases, on the second postoperative day. In Study III, 313 adult participants were randomly assigned to perform home-based deep breathing exercises with PEP for two months after surgery or not to perform breathing exercises with PEP after the fourth to fifth postoperative day. The main outcome was lung function, assessed by spirometry, two months after surgery. Studies II and IV were descriptive and correlative and investigated pre and postoperative lung function, assessed by spirometry, and respiratory muscle strength, assessed by maximal inspiratory pressure, and maximal expiratory pressure. Results: On the second postoperative day, arterial oxygen tension (PaO2) and arterial oxygen saturation (SaO2) was higher in the group randomised to 30 deep breaths with PEP hourly. There was no improved recovery of lung function in participants performing home-based deep breathing exercises two months after cardiac surgery, compared to a control group. Subjective experience of breathing or improvement in patient perceived quality of recovery or health-related quality of life did not differ between the groups at two months. Lung function and respiratory muscle strength were in accordance with predicted values before surgery. A 50% reduction in lung function was shown on the second postoperative day. High body mass index, male gender and sternal pain were associated with decreased lung function on the second postoperative day. Two months postoperatively, there was decreased lung function, but respiratory muscle strength had almost recovered to preoperative values. / <p></p><p></p>

The goal of the current study was to examine the relationship between muscle magazine consumption and body dissatisfaction. The study also examined the relationship between muscle magazine consumption and the amount of disparity between ideal and real body shape. Participants (N = 108) were recruited via study board, and also on a volunteer basis, from a mid-Western university with a population of 20,674 students. The first hypothesis stated that men with greater exposure to muscle magazines would indicate that their actual body shape falls further away from their ideal body shape, in terms of both muscularity and fat level, than men who read fewer magazines that focus on muscle building. The second hypothesis stated that men with greater exposure to muscle magazines would indicate higher levels of body dissatisfaction than men who read fewer magazines focused on muscle building. To evaluate the first hypothesis, a linear regression analysis was conducted to determine whether magazine consumption would predict the distance between real and ideal body shape, in terms of both fat and muscle content. Results did not support the first hypothesis and are not consistent with prior research that showed higher levels of muscle and fitness magazine consumption correlating positively with a greater drive for thinness and a greater drive for muscularity. Results did not support the second hypothesis: greater exposure to muscle magazines did not lead to greater levels of body dissatisfaction. Regression analysis found that there was no predictive relationship between muscle magazine consumption and body dissatisfaction or muscle magazine consumption and greater distance between ideal and real body shapes. Additional t-test analysis found that men who read muscle magazines actually indicated significantly lower levels of dissatisfaction with their bodies than men who did not read muscle magazines; however, that result is restricted to collegiate athletes only. Results from this study are important in that they indicate, in men, there are other factors involved in determining how individuals end up with increased levels of body dissatisfaction. Prior findings also concluded that men’s concerns with body shape thrive as a combination of multiple constructs involving social, personal, and mass media factors. Although magazine literature has some bearing on body image concern, particularly with women, it is unclear as to whether magazine consumption contributes to its effect on men. One limitation of this study is that participants reported on the degree to which they were dissatisfied with their bodies. Some individuals may not have acknowledged their level of dissatisfaction with their own bodies. Information based upon self-reporting measures may have been inaccurate due to under or over reporting in surveys. Another limitation of this study, particularly when using the results as a comparison tool toward previous studies, is that the measures used to determine levels of body dissatisfaction differ. Researchers abroad have used different measures to arrive at what would be considered similar conclusions regarding body dissatisfaction. There are multiple measures that can be used to determine a person’s level of satisfaction and drive for muscularity. Some measures are better than others at capturing variable characteristics. Another important limitation is that muscle magazines only represent one form of media consumption. A study that incorporated other forms of media may be more fruitful in its findings. Therefore, results should be interpreted with caution. However, with everexpanding information technology capabilities, society is increasingly bombarded with information more so than ever before. This study provides additional insight into the question of whether or not more is better. It also identifies a gender difference in the predicting power of magazine consumption and body dissatisfaction.

The main purpose of this study was to determine whether playing soccer at high intensity training for a long period causes degeneration of the lumbar spine or not. This degeneration may occur without any symptoms or low back pain. Results of the present study were discussed in the framework of lumbar disc degeneration, trunk strength, lumbar and hip bone mineral density, trunk flexibility, activity MET scores for active and veteran soccer groups. There have been four subject groups in this study (15 active soccer players, 15 sedentary participants, 14 veteran soccer players, 13 sedentary participants). The BMD was measured in anterior-posterior view with a second-generation dual energy X-ray absorptiometry (DEXA) device. Isokinetic trunk strength data were recorded with the Biodex System Dynamometer (Biobex Medical Inc, Shirly, NY) at the 60&ordm / /sec and 120&ordm / /sec. Plain lateral radiographs were taken. The presence of degenerative changes of each lumbar vertebra was determined by using the Kellgren and Lowrence Score. A modified Schober test was used to measure lumbar flexion. Findings of the study demonstrated that veteran soccer players displayed greater lumbar disc degeneration than other groups. Moreover, v active soccer group had more BMD than other groups, but the veteran group&amp / #8217 / s BMD results were not different while comparing the control participants. Isokinetic test findings of the current study, trunk extension strength at 60/sec was significantly higher in active 1st group players than 2nd group participants, but there were no significant differences between the 1st group and 2nd group in terms of trunk flexion strength and agonist/antagonist ratio at 60/sec. In conclusion, Findings of the study support the main hypothesis that playing soccer at high intensity training at a long period of time may cause lumbar spine degeneration. Degeneration may occur without low back symptoms. Moreover, results supported the idea that Soccer can be accepted an impact loading sport that are to keep or accelerate bone mineral density. At last, having abnormal trunk extension strength while playing actively may cause lumbar disc degeneration on the spine at later years. A similar study should be carried out with a larger number of subjects, and longitudinal studies should be designed to examine the factors that effect the degeneration on the lumbar spine.

Darbo tikslas: Įvertinti sergančiųjų reumatoidiniu artritu plaštakos ir riešo funkciją ir su ja susijusius veiklos sutrikimus bei jos korekcijos galimybes, taikant ergoterapiją. Darbo uždaviniai: 1. Įvertinti ligonių, sergančių reumatoidiniu artritu, plaštakos ir riešo funkciją. 2. Nustatyti sergančiųjų reumatoidiniu artritu savarankiškos veiklos sutrikimus. 3. Įvertinti sergančiųjų reumatoidiniu artritu ergoterapijos efektyvumą. 4. Nustatyti veiksnius įtakojančius ergoterapijos efektyvumą ir jų prognostinę vertę. / Aim of study: To evaluate the hand and wrist function and related dysfunction in rheumatoid arthritis patients, and the possibilities for its restoration by means of occupational therapy. Objectives of the study: 1. To evaluate the hand and wrist function in rheumatoid arthritis patients. 2. To evaluate the functional limitations of self-dependence in rheumatoid arthritis patients. 3. To evaluate the effectiveness of occupational therapy in the rheumatoid arthritis patients. 4. To identify factors which have an impact on the effectiveness of the occupational therapy, and to estimate their forecast value.

In recent decades scientists have been showing more interest in researching how a human body changes while growing during childhood. It is obvious that prevention of functional and structural bodily disorders have to start in early school years. So far it is not fully explored why such changes occur during this period of life. The correct evaluation of the development of bone and muscle structure and of cardiovascular system, the early diagnosis of any deviations and employment of adequate measures of prevention of structural and functional changes are very important. The aim of the study is o investigate the correlation between structural and functional parameters of a growing body. Objectives: 1.To evaluate changes of structural and functional parameters in children and adolescents according to age. 2.To evaluate changes of structural and functional parameters in children and adolescents according to gender. 3.To determine age related correlations among structural and functional body parameters in children and adolescents. 4.To determine correlations among structural and functional body parameters in children and adolescents related to gender. MATERIALS AND METHODS: One hundred and twenty four school age children (aged 7-18 years) participated in the study. Methods: The bicycle (VEM) veloergometry test, ECG, ABP, HR measurements, dynamometry, cirtometry, scoliometry. Conclusions. Thoracic kyphosis in boys decreased with age. Parameters of body posture in frontal plane did... [to full text]

The purpose of this investigation was to assess the between-day reliability of selected force-time curve indices and the activity onset of selected neck muscles in the performance of maximal, isometric contractions in five different directions. The measures extracted are deemed important for future investigations aimed at exploring the role of cervical musculature in reduction of concussion occurrences in sports. Twenty eight physically active male participants performed two testing sessions separated by 7-8 days. In each testing session, force and surface electromyography (EMG) data were recorded simultaneously in a custom-made testing apparatus whilst subjects performed four randomized maximal isometric efforts in extension, flexion, and left and right lateral bending and protraction. The variables examined were the peak force, rate of force development (RFD), time to 50% of peak force and bilateral activity onset of the splenius capitis, upper trapezius, and sternocleidomastoid. For all variables, reliability was assessed by: 1) difference scores between the testing sessions and corresponding 95% confidence intervals; 2) standard error of measurement (SEM), expressed in either the original units of measurement, or as a coefficient of variation; and, 3) Intraclass correlation coefficients (ICC). The results indicated that for all variables, in all testing directions, no differences in scores were observed between the first and second testing sessions. The precision of measurement for all measures, barring muscle onsets obtained in protraction, was deemed acceptable for future clinical application. ICC score ranges for force-time curve-based measurements were high (< 0.90), while for muscle onsets, the ICC ranges are low to moderate (0.23 -0.79). Based on these results, it was concluded that, in highly active male participants, a dedicated familiarization session for the elimination of potential learning effects is not required. In addition, for the majority of testing directions, the force-time curve-based variables as well as muscle activity onsets are recorded with a sufficiently high level of precision, which make them prime candidates for utilization in future investigations concerned with quantitative assessment of cervical musculature function. / Thesis (Master, Kinesiology & Health Studies) -- Queen's University, 2009-09-23 01:23:12.324

It is often difficult to optimize strength qualities in-season due to the conflicting influences of extensive skill practices combined with frequent game play of the competition schedule. The purpose of this study was to investigate the effects of two interventions on strength qualities and CMJ performance. Thirteen women volleyball players competing in NCAA Division I were tested before and after four weeks of an inseason strength training program with emphasis on heavy squatting (6-IORM), and then before and after three weeks of unloaded jump training. Dynamic squat strength, isometric squat strength, optimal power, CMJ, SJ and approach jump and reach were all tested before and after both cycles. There was a significant increase in both average 1RM squat strength (5%) and vertical jump (1%) following the strength cycle. Following the unloaded training, there was a significant increase in both peak power output (18%) and peak velocity (14%) in the CMJ. SJ performance significantly increased in both peak force (6%) and maximum height (10%). Throughout training, there were no decreases in maximal strength levels or post-test Vertec jump and reach. This study indicates that heavy squatting can improve vertical jump as well as 1RM squat despite a high volume in-season practice and competition schedule. Furthermore, unloaded training can improve the explosive qualities of athletes when used as a peaking cycle late in-season. Athletes maintained dynamic strength and jumping ability from pre-testing scores, while significantly increasing both peak velocity and power in the CMJ. / School of Physical Education

The overall aim of this thesis was to identify valid, simple, and inexpensive physical tests that can be used for evaluation of firefighters’ physical work capacity. Paper I included fulltime- and part-time firefighters (n = 193), aged 20-60 years. Perceived physical demands of firefighting work tasks were ranked, and comparisons between subject groups rating were done with the Mann Whitney U-test and Binominal test. Papers II and III included male firefighters and civilian men and women (n = 38), aged 24-57 years. Laboratory and field tests of aerobic fitness, muscle strength and endurance, balance, and simulated firefighting work tasks were performed. Physical capacity comparisons between subject groups were done and bivariate correlations between physical tests and work capacity in the simulated firefighting work tasks analyzed. Paper IV included the same subjects as in Paper II-III (training-set), and additional 90 subjects (prediction-set), aged 20-50 years. Laboratory and field tests of aerobic fitness, muscle strength and endurance and balance, and simulated firefighting work tasks were included. Data from the training-set was used to build models for prediction of firefighters’ physical work capacity, using multivariate statistic. The prediction-set was used to externally validate the selected models. Several work tasks were rated as physically demanding and significant differences (p &lt; 0.05) in ratings were found between full-time and part-time firefighters (Paper I). Significant differences were found between subject groups in physical capacity, and work capacity (p &lt; 0.01) (Paper II-IV). Both laboratory and field tests were significantly (p &lt; 0.01) correlated with work capacity time (Paper II-III). The prediction (R2) and predictive power (Q2) of firefighters’ work capacity (Carrying hose baskets upstairs, Hose pulling, Demolition at or after a fire, Victim rescue, and Carrying hose baskets over terrain) was R2 = 0.74 to 0.91, and Q2 = 0.65 to 0.85, and the external validation ranged between R2: 0.38 to 0.80 (Paper IV). In conclusion, rowing 500 m (s), maximal handgrip strength (kg), endurance bench press (n), running 3000 m (s and s scaled to body weight) upright barbell row (n) and standing broad jump (m) together provides valid information about firefighters’ physical work capacity.

[Truncated abstract] Resistance training is increasingly popular for improving strength qualities such as hypertrophy, maximal strength, endurance and power. Although many resistancetraining programmes now adhere to the concept of periodisation, the number of studies examining its structure and design are few, and there are just a handful of studies that have examined periodised training for the maintenance of strength and power. Even rarer, are periodised resistance-training studies that utilise female subjects. Previous studies have compared non-periodised training regimens such as Progressive Resistance Exercise (PRE), and the two main models of periodisation, Linear Periodisation (LP) and Undulating Periodisation (UP). Results are inconclusive as to whether the efficacy of the periodised training programmes were due to the manipulation of training variables such as volume and intensity, or that training programmes with higher doses of volume induced better training responses. However, to make effective comparisons between training programmes, the training volume or workload (total load lifted x total repetitions) and training intensity have to be equated between the groups under examination. While the intensities (percentage of one-repetition maximum, 1 RM) for improving strength qualities such as hypertrophy and maximal strength have general consensus among resistance-training practitioners, there exists disagreement over the intensity that should be used during the training of power. Thus, it is important to first identify the load for power training before comparisons can be made between LP and UP programmes using equal training volumes. ... The final study found that adhering to two UP maintenance training programmes with equalised volumes and intensities twice a week increased upper-body strength and maintained lower-body strength adequately across a 3-wk phase. The results from these studies support previous results that suggest training programmes with higher workloads and repetitions produce superior strength and power adaptations, and it is not specifically the variation of training volume and intensity within a periodised programme that improves strength qualities. Thus, both periodised programmes used in this thesis can be recommended for untrained and moderatelytrained women as both LP and UP were found to be similarly effective for increasing upper- and lower-body hypertrophy, strength and power.

Diss. (sammanfattning) Linköping : Linköpings universitet, 2008. / Härtill 4 uppsatser.