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PubMed2003

Does living in a cold climate or recreational skiing increase the risk for obstructive respiratory diseases or symptoms?

OBJECTIVES: Respiratory symptoms and obstructive pulmonary diseases experienced during exercise and in cold weather were analysed in a large postal questionnaire study of a general adult population living in a cold climate. The aim of this study was to assess the prevalence of shortness of breath (SOB) during exercise, or in cold weather, and to find out if the risks (odds ratio=OR) for asthma, chronic bronchitis, or SOB during exercise, or in cold weather, were affected by recreational cross-country skiing, or by outdoor work in a cold climate. RESULTS: Of the 7937 invited persons, 84% responded; 876 of them were outdoor workers and 1497 were recreational cross-country skiers. Of the non-smoking responders, asthmatic subjects had the highest prevalence of SOB during exercise in cold weather (78%-82%), but allergic and bronchitic persons also had significantly higher prevalence rates (22%-38% and 27%-59%, respectively) than healthy persons (10%-19%). In all categories, the prevalence of SOB was significantly higher among current smokers than among ex- or non-smokers. Risk factor analysis revealed increased risks for respiratory conditions among those who had a family history of obstructive airway disease, or allergy. Skiers did not have a significantly increased risk for asthma, or respiratory symptoms. Among outdoor workers the risk for SOB during exercise in cold weather, OR 1.23 (CI 1.03-1.47), and for chronic bronchitis, OR 1.77 (CI 1.21-2.60), was higher than among indoor workers. CONCLUSIONS: In conclusion, the risk for chronic bronchitis and bronchitic symptoms was elevated among outdoor workers, but not among regular recreational cross-country skiers, and the risk for asthma was not significantly elevated by regular exercising, or by working in a cold climate.

Adult↗
PubMed1990

Cardiovascular effects of recreational cocaine abuse.

Deaths related to the recreational use of cocaine in the United States have increased to epidemic proportions within the last decade. Frequently, persons with cocaine toxicity present to the emergency room, require critical care nursing, and are admitted to the intensive care unit. This article outlines the cardiovascular effects of recreational cocaine abuse. Initially, the historical perspective of the drug is outlined. The mechanism of action, administration, absorption, and excretion are discussed. Details regarding the cardiovascular effects of cocaine are described. Although no uniform treatment plan has been developed for every complication of cocaine overdose, the current therapeutic modalities are outlined. Finally, the clinical implications for clinical practice are addressed. The recreational abuse of cocaine presents new patient care challenges for the critical care nurse. With increased knowledge, the health care provider may assist in meeting the clinical needs of this emerging patient population.

Cardiovascular System↗
PubMed1999

[Real and irrelevant risks of infection by swimming in recreational bodies of water].

Life-threatening infectious diseases associated with recreational water exposure are possible but occur very rarely. About eighty per cent of all infections due to bathing water produced gastroenteritis, the remaining were spontaneously healing infections of ear, nose and throat as well as eye and respiratory symptoms. They are caused by endogenic and exogenic agents. The risk, i.e. the mean frequency of such commonplace diseases associated with bathing or swimming is already doubled by endogenic infectious agents even without any etiological agents in the recreational water. The additional risk by exogenic infectious agents increases with the concentration of fecal markers. The prescribed limit E coli value of 200 CFU per 100 ml of the EU guidelines for bathing waters corresponds to a risk increased by the factor 7-8. The Bathing Water Committee of the German Federal Environmental Agency issued new recommendations prescribing severely lowered limit values. For example, the Committee called for 100 CFU of E. coli per 100 ml. However, there are economical and legal objections as well as doubts regarding the Committee's scientific competence. The lower limit values are associated with high expenses for communities and bathers without recognizable returns in terms of efficiency. Furthermore, they offend against the legal principle of equality because newly constructed pools are not different from bathing water regulated according to EU guidelines. Finally, the Bathing Water Committee holds scientifically incorrect views on infectious agents and on the risks in recreational waters.

Bathing Beaches↗
PubMed2002

Sudden death due to recreational exercise in physicians.

In a period from 1982-2002 we noticed five dead among Croatian male physicians aged 34 to 67, during or after recreational physical exercise: swimming, soccer, tennis and jogging. Three of them who were autopsied, have been non-smokers and without previous symptoms. In all coronary heart disease was found. The left descending anterior artery was stenotic in one and occluded in two, with myocardial scars in one. An acute myocardial infarction was found in none of them, and in two-left ventricular hypertrophy 15 and 18 mm. We could not find a recent medical record in those physicians including a clinical finding and other findings. Two physicians who were not been autopsied, had possible an alcohol cardiomyopathy. Both of them were smokers. In Croatia about 7% of the whole population are engaged in recreational physical exercise. In a period of twenty years (1982-2002) we noticed 43 sudden and unexpected deaths during or immediately after physical exercise: it reached 43/6,300,000 sudden death in Croatia in twenty years or 2.15/315,000 yearly among persons engaged in physical exercise. In Croatia there are 4,957 male physicians-specialists, and a rate of sudden cardiac death during or immediately after physical exercise in this group reached 5/99,140 in 20 years or 1/19,828 every four years. A medical check up before recreational physical exercise is essential including a clinical examination, a serum concentration of risk factors and other risk factors, an electrocardiogram at rest, a stress test and echocardiography in clinical indication, as are medical controls over persons taking exercise. This study shows that medical evaluation is important because of the underlying problems such as sudden death during exercise. In non-trained persons and in the elderly a physical exercise should be recommended of a gradually intensity, which could not exceed 6 METs.

Adult↗
PubMed2003

Drug interactions associated with HAART: focus on treatments for addiction and recreational drugs.

The advent of HAART has improved survival in patients infected with HIV; however, treatment is complicated by potential drug interactions. The risk of drug interactions is compounded by the use of additional therapies for comorbid conditions, such as substance abuse, and by the use of recreational drugs. HIV health care providers should be aware of the potential interaction of recreational drugs and addiction treatments with HAART because of the potential for significant adverse effects for their HIV-infected patients. This article provides a review of the literature on drug interactions among addiction therapies, recreational drugs, and HAART.

Antiretroviral Therapy, Highly Active↗
PubMed1992

Scombroid fish poisoning. Underreporting and prevention among noncommercial recreational fishers.

Food-borne diseases, including those caused by seafood products, are common and greatly underreported sources of morbidity. In this article we review the epidemiology of scombroid fish poisoning and its possible relationship to the noncommercial and recreational catch and sale of fish. More than 20% of all fish sold in the United States is caught by sport fishers, and outbreaks of scombroid fish poisoning have involved improperly handled fish from private catches. We report an outbreak of scombroid fish poisoning among recreational fishers in California. The unregulated sale of recreationally caught fish for consumption and the prevention of scombrotoxism are discussed from the perspectives of public health agencies, clinicians, and the fishing public. Scientific and policy issues that require further attention are high-lighted.

Adult↗
PubMed1992

Asphyxial deaths from the recreational use of nitrous oxide.

The recreational use of nitrous oxide is widespread. Nitrous oxide for recreational use is usually obtained from anesthesia tanks or whipped-cream machine chargers or cans. Twenty previously described deaths associated with recreational nitrous-oxide use describe anesthesia tanks and whipped-cream machine dispensors as a source. Five deaths associated with nitrous oxide use are presented; two involving whipped-cream cannisters as the source, two involving anesthesia tanks, and one involving a racing fuel tank as a source of nitrous oxide. Autopsy findings in our cases were subtle or negative, but usually suggestive of asphyxia. Through a laboratory simulation, we have confirmed that nitrous oxide displaces oxygen in a closed space, which probably leads to asphyxia. A review of the literature, neuropharmacology, and pathophysiology of nitrous oxide use is also presented.

Adolescent↗
PubMed2004

Participation in recreation and sports for persons with spinal cord injury: review and recommendations.

Recreation and sports following Spinal Cord Injury (SCI) are beneficial, but under-studied, aspects of community integration. Previous studies have shown that sports and recreation can offer numerous physiological and psychological benefits to those who participate. This manuscript critically reviews available literature focused upon participation in recreation and sports among persons with SCI. Issues of participation, technology and safety are discussed and recommendations are provided.

Athletic Injuries↗
PubMed2005

Differences in blood lipids and apolipoproteins between master athletes, recreational athletes and sedentary men.

AIM: Studies related with the role of intensive and moderate training on reducing coronary heart disease (CHD) risks have revealed conflicting RESULTS: Thus, the aim of this study was to clarify the association between long-term physical training with competitive and recreational purposes and blood lipids and apolipoproteins in the middle-aged master athletes, recreational athletes and sedentary controls. METHODS: The association between long-term physical training and serum concentrations of lipids, lipoproteins, and apolipoproteins in the middle-aged men was investigated. Twelve male master athletes (MA), 12 male recreational athletes (RA) (>10 y), and 12 male sedentary controls (CG) participated in the study. Serum concentrations of lipids and lipoproteins were measured by enzymatic methods; apolipoproteins (ApoA1 and ApoB) and serum lipoprotein(a) Lp(a) were measured by immonoprecipitation assays. RESULTS: TC, LDL-C, ApoA1, Lp(a) levels and LDL-C/HDL-C ratio of the 3 groups did not show any significant differences. MA and RA had significantly higher levels of VO2max, HDL-C, ApoA1/ApoB ratio; and lower values of percent body fat, resting heart rate, systolic and diastolic blood pressures, TG, ApoB and TC/HDL-C ratio than CG. We did not find any significant differences between MA and RA in any variables except for BMI and TC/HDL-C ratio. CONCLUSIONS: Habitual physical training favorably altered serum lipid and apolipoprotein profiles. Although there was no statistical significance (except for BMI and TC/HDL-C) between MA and RA, a tendency to reduce the CHD risks was observed almost in all variables in favor of MA.

Apolipoproteins↗
PubMed1991

The VO2max of recreational athletes before and after pregnancy.

This study was designed to test the hypothesis that pregnancy has an added training effect (increases "absolute" VO2max) in well-conditioned, recreational athletes. VO2max was measured serially in 20 nonpregnant recreational athletes who maintained their exercise within +/- 10% of initial levels over a 15-month period and 20 similar women who conceived and continued exercise at a reduced level during pregnancy with a return to within 20% of initial levels by 12 wk postpartum. Initially the two groups were similar in terms of age (30 +/- 1 vs 30 +/- 2 yr), weight 57.6 +/- 7.2 vs 59.7 +/- 7.5 kg), max pulse rate (189 +/- 8 vs 187 +/- 10 bpm), and absolute (3083 +/- 469 vs 3138 +/- 464 ml.min-1) VO2max. In the nonpregnant group the values obtained 15 months later were unchanged (weight = 57.8 +/- 6.6 kg, max pulse = 191 +/- 7 bpm, VO2max = 2977 +/- 397 ml.min-1) while those who conceived had a significant increase in absolute VO2max that was evident 12-20 wk postpartum and was maintained at the time of final testing 36-44 wk postpartum (3368 +/- 435 ml.min-1). Both weight (60.1 +/- 8.1 kg) and maximum pulse rate (185 +/- 12 bpm) were unchanged. These data indicate that pregnancy is followed by a small but significant increase in VO2max in recreational athletes who maintain a moderate to high level of exercise performance during and after pregnancy.

Adult↗
PubMed1993

Recreational physical activity and ten-year weight change in a US national cohort.

Clinical research has established that increases in physical activity cause weight loss among the obese, but less is known about the influence of physical activity on longer-term weight change in the general population. Data from the NHANES-I Epidemiologic Follow-up Study (1971-1975 to 1982-1984) were used to examine the relationship between self-reported recreational physical activity level (low, medium, high) and measured weight change after ten years among 3515 men and 5810 women aged 25-74 years. Cross-sectional analyses at both the baseline and follow-up surveys revealed that recreational physical activity was inversely related to body weight. Low recreational physical activity reported at the follow-up survey was strongly related to major weight gain (> 13 kg) that had occurred during the preceding ten years. The estimated relative risk of major weight gain for those in the low activity level at the follow-up survey compared to those in the high activity level was 3.1 (95% Cl = 1.6-6.0) in men and 3.8 (2.3-6.5) in women. In addition, the relative risk for persons whose activity level was low at both the baseline and follow-up surveys was 2.3 (0.9-5.8) in men and 7.1 (2.2-23.3) in women. However, no relationship was found between baseline physical activity level and subsequent weight gain among either men or women. The lack of a relationship may be due to mis-specification of physical activity because of changes in activity over time. These findings suggest that low physical activity may be both a cause and a consequence of weight gain.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1997

[Evaluation of diastolic function of in patients addicted to recreational cocaine].

BACKGROUND AND AIMS: The recreational use of cocaine is associated with cardiovascular pathologies, such as ischemic cardiopathy, myocarditis and cardiomyopathies, owing to the increased catecholamine stimulus, a propensity to coronary spasm, increased coagulative activity and inflammatory and degenerative phenomena of myocardiac cells. Early alterations of the diastolic phase may be visualised by evaluating the diastolic Doppler pattern of left ventricular filling. METHODS: For this purpose the authors compared blood pressure, heart rate, heart mass, protodiastolic (E wave) and telediastolic (A wave) filling rate and their ratio (E/A) on the Dopper mitral diastolic profile in a group of 10 patients addicted to the recreational use of cocaine (mean age 33 +/- 7) with those of 10 normal subjects (mean age 34 +/- 2). RESULTS: Patients using cocaine presented mean systolic arterial blood pressures of 130 +/- 12 versus 127 +/- 8 in control subjects (p = ns); mean heart rate was statistically significant with 98 +/- 14 versus 76 +/- 12 in controls (p < 0.05). There were no differences in cardiac mass between the two groups. In cocaine addicts the speed of the E wave was significantly slower: 58.4 +/- 8.6 versus 73 +/- 7.4 cm/sec (p < 0.05), and the speed of the A wave was significantly higher: 70.5 +/- 10.5 versus 62.6 +/- 4.3 cm/sec (p < 0.05), when compared with normal controls subjects; the E/A ratio of cocaine addicts was lower (0.75 +/- 0.34) compared to normal subjects (1.07 +/- 0.7), (p < 0.05). CONCLUSIONS: These data show that patients addicted to the recreational use of cocaine show preclinical alterations of the left ventricular diastolic phase prior to the onset of clinically evident pathologies.

Adult↗
PubMed2006

Recreational physical activity and survival among young women with breast cancer.

BACKGROUND: Most epidemiologic studies report a reduced risk of developing breast cancer associated with higher levels of recreational physical activity, but little is known regarding its effect on prognosis. METHODS: In this study, the authors investigated whether activity undertaken prior to diagnosis influenced breast cancer survival in a population-based cohort. A follow-up study was conducted among 1264 women ages 20 to 54 years who were diagnosed with invasive breast cancer between 1990 and 1992. Women in the study were interviewed within several months of diagnosis and were asked about their average frequency of moderate and vigorous activity at age 13 years, age 20 years, and during the year before diagnosis. With 8 to 10 years of follow-up, all-cause mortality status was determined by using the National Death Index (n = 290 deaths). RESULTS: A modest reduction in the hazards ratio (HR) was observed for the highest quartile of activity in the year before diagnosis compared with the lowest quartile (stage-adjusted and income-adjusted HR, 0.78; 95% confidence interval [95% CI], 0.56-1.08). High activity was associated with a reduced HR among women who were overweight or obese at the time of diagnosis (HR, 0.70; 95% CI, 0.49-0.99) but not among ideal weight or underweight women (HR, 1.08; 95% CI, 0.77-1.52). A reduced HR was not evident for activity at age 13 years or 20 years or for average activity across the 3 periods studied. CONCLUSIONS: The results of this study provided some suggestive evidence for a beneficial effect on survival of recreational physical activity undertaken in the year before diagnosis, particularly among women who are overweight or obese near the time of diagnosis.

Adolescent↗
PubMed2006

Lifetime occupational and recreational physical activity and risk of benign prostatic hyperplasia.

To investigate the relation between occupational and recreational physical activity (PA) in different periods of life and the risk of benign prostatic hyperplasia (BPH), we conducted a hospital-based, case-control study in Italy. The study included 1,369 histologically confirmed BPH and 1,451 controls, admitted to the same hospitals for acute, nonneoplastic diseases. Odds ratios (ORs) and 95% confidence intervals (CIs) of BPH, according to lifetime PA, were obtained by unconditional multiple logistic regression models, including terms for age, study center and education. Compared to the lowest level of occupational PA, the multivariate ORs for BPH for the heavy/strenuous level were 0.6 (95% CI, 0.4-0.8) at age 15-19, 0.6 (95% CI, 0.4-0.8) at age 30-39 and 0.7 (95% CI, 0.5-0.9) at age 50-59. Moreover, compared to <2 hr/week of recreational PA, the ORs for BPH for the highest level (>or=5 hr/week) were 0.5 (95% CI, 0.4-0.7) at age 15-19, 0.6 (95% CI, 0.5-0.8) at age 30-39, and 0.7 (95% CI, 0.5-0.8) at age 50-59. All inverse trends in risk were significant, and no heterogeneity was found by reason of BPH-diagnosis, age at diagnosis, and body mass index (BMI). The inverse association between PA and BPH risk may be due to favorable hormonal correlates of PA, but residual confounding by socioeconomic covariates cannot be excluded. A moderate PA at any ages may help reducing a sizeable number of BPH.

Adolescent↗
PubMed2006

Recreational physical activity and risk of prostate cancer: A prospective population-based study in Norway (the HUNT study).

Physical activity has been studied in relation to prostate cancer risk, but the findings have been inconclusive. We prospectively examined the association between self-reported recreational physical activity and overall risk of prostate cancer, risk of advanced disease and risk of prostate cancer death in a cohort of 29,110 Norwegian men. Incident prostate cancers were obtained from the Norwegian Cancer Registry, and prostate cancer deaths were obtained from the national Cause of Death Registry. During 17 years of follow-up, 957 incident cases were identified, 266 of them were advanced (i.e. metastases at diagnosis) and 354 of the incident cases died from prostate cancer. In multivariable analysis, frequency and duration of exercise were inversely associated with the risk of advanced prostate cancer (p for trend = 0.04 and 0.02). We computed a summary score that combined frequency, duration and intensity of exercise, and this score showed inverse associations with advanced prostate cancer risk and mortality (p for trend = 0.02 and 0.07). Compared to men who reported no activity, the relative risks (95% confidence intervals) among men in the highest category of physical exercise was 0.64 (0.43-0.95) for advanced prostate cancer and 0.67 (0.48-0.94) for prostate cancer death. We found no association between physical activity and overall risk of prostate cancer. We conclude that recreational physical exercise is associated with reduced risk of advanced prostate cancer and prostate cancer death.

Adult↗
PubMed2006

Long-term recreational gymnastics provides a clear benefit in age-related functional decline and bone loss. A prospective 6-year study.

INTRODUCTION: Bone fragility and decreased functional performance are risk factors for osteoporotic fractures. The influence of long-term recreational gymnastics on the maintenance of bone rigidity and physical performance was evaluated. METHODS: One hundred and seven gymnasts and 110 referents (93% of the original sample) participated in this 6-year prospective study. Analysis of covariance (ANCOVA) was used to estimate the between-group differences and changes by time, and regression analyses to find predictors for changes. RESULTS: In both groups agility and leg extensor power decreased by over 3% and 10%, respectively, but the original between-group differences, favoring the gymnasts, persisted. Proximal femur bone mineral content (BMC) decreased approximately 0.5% per year in both groups, and femoral neck section modulus decreased. Trabecular density of the distal tibia declined only marginally, and cortical area of the tibial midshaft remained unchanged, while cortical density decreased about 2% in both groups. After adjustment by age, height, weight, change in weight, and follow-up time, antiresorptive medication and high calcium intake accounted most for the maintenance of bone rigidity. CONCLUSIONS: In spite of similar rates of decline in bone characteristics and physical performance, the recreational gymnasts' overall physical condition was comparable to the level that their less active referents had shown approximately 5 years earlier.

Aged↗
PubMed2005

Estimating the recreational-use value for hiking in Bellenden Ker National Park, Australia.

The recreational-use value of hiking in the Bellenden Ker National Park, Australia has been estimated using a zonal travel cost model. Multiple destination visitors have been accounted for by converting visitors' own ordinal ranking of the various sites visited to numerical weights, using an expected-value approach. The value of hiking and camping in this national park was found to be dollar AUS 250,825 per year, or dollar AUS 144,45 per visitor per year, which is similar to findings from other studies valuing recreational benefits. The management of the park can use these estimates when considering the introduction of a system of user pays fees. In addition, they might be important when decisions need to be made about the allocation of resources for maintenance or upgrade of tracks and facilities.

Australia↗
PubMed2005

Impacts of visitors on soil and vegetation of the recreational area "Nacimiento del Río Mundo" (Castilla-La Mancha, Spain).

This study examines the effects of recreational use on the soil and vegetation at a site of ecological importance (Nacimiento del Río Mundo, Albacete, Spain). The most visited sites showed increased soil compaction of approximately 50%, bare ground increase to 61 +/- 10% and a decrease in richness (from 25 +/- 2 to 15 +/- 2 species), diversity (from 4.0 +/- 0.1 to 2.7 +/- 0.4) and stratification of plant species (from 80 +/- 11 to 21 +/- 4%). The most visited sites had 90% less plant species as compared to the least visited. Intense use was associated with the presence of nitrophilous plant and vegetal species with a morphology adapted to heavy trampling. The recreational areas showed a distribution pattern of impact radiating outwards from the most used and degraded point. At the most visited point, "Los Chorros" (the spring of the river), the impact radiated outwards for about 20 m. A pilot experiment examining the effects of one-year restriction to visitors for access to a formerly impacted area showed a plant cover increase by anthropic and not by native species of 57 percent units.

Conservation of Natural Resources↗