Benchmarking the health of health sciences students at Kuwait University: towards a culture of health.

Health professional entry-to-practice programmes are intense, competitive and prolonged. The aims of this study were to benchmark the health of health sciences students at Kuwait University, thereby informing student health services, and to establish a base for individual student's health assessments throughout the programmes. We used a convenience sample of 176 students. Assessment included a health/wellness questionnaire (smoking, nutrition, physical activity, sleep and stress) and objective measures (resting heart rate, blood pressure, waist-to-hip ratio and random blood glucose). Students had suboptimal activity, diet, stress and sleep. Health was suboptimal based on significant proportions of students in unhealthy categories for resting heart rate, blood pressure and body composition. Health status of health sciences students at Kuwait University is not consistent with healthy health professionals in training, who should serve as role models for the public. A culture of health on campus is recommended to maximize the health of students and their capacity as health role models.

Benchmarking the health of health sciences students at Kuwait University: towards a culture of health

Health professional entry-to-practice programmes are intense, competitive and prolonged. The aims of this study were to benchmark the health of health sciences students at Kuwait University, thereby informing student health services, and to establish a base for individual student's health assessments throughout the programmes. We used a convenience sample of 176 students. Assessment included a health/wellness questionnaire [smoking, nutrition, physical activity, sleep and stress] and objective measures [resting heart rate, blood pressure, waist-to-hip ratio and random blood glucose]. Students had suboptimal activity, diet, stress and sleep. Health was suboptimal based on significant proportions of students in unhealthy categories for resting heart rate, blood pressure and body composition. Health status of health sciences students at Kuwait University is not consistent with healthy health professionals in training, who should serve as role models for the public. A culture of health on campus is recommended to maximize the health of students and their capacity as health role models

Les programmes de formation des professionnels de la santé sont intenses, compétitifs et longs. La présente étude visait à mesurer la santé des étudiants dans les facultés du Centre de Sciences médicales de l'Université du Koweit, permettant ainsi d'orienter les services de santé étudiante et d'établir des données de référence pour l'évaluation de la santé des étudiants dans l'ensemble des programmes. Nous avons recouru à un échantillon de commodité de 176 étudiants. L'évaluation incluait un questionnaire sur la santé/le bien-être [tabagisme, nutrition, activité physique, sommeil et stress] et des mesures objectives [rythme cardiaque au repos, tension artérielle, rapport taille-hanche, et glycémie aléatoire]. Les résultats ont montré que les étudiants avaient des niveaux d'activité, des régimes alimentaires, un niveau de stress et un sommeil suboptimaux. L'état de santé n'était pas optimal pour une proportion importante des étudiants ayant des mauvais résultats pour la composition corporelle, la fréquence cardiaque et la pression artérielle. L'état de santé des étudiants en sciences médicales de l'Université du Koweit ne correspond pas à ce que l'on attend de professionnels de la santé en formation, qui devraient servir de modèle pour le grand public. Une " culture de la santé " sur le campus est recommandée pour améliorer la santé des étudiants et leur capacité à servir de modèle pour les modes de vie sain

Exercise may offset nicotine-induced injury in lung tissue: a preliminary histological study based on a rat model.

Nicotine appears to be the primary pharmacologic agent that causes smoking-related pulmonary diseases. An understanding of the effect of nicotine on lungs is essential to develop interventions that can be used to counter smoking-related diseases. Further, it is shown that physical exercise may partially reverse smoking-induced pathological changes in experimental animals. Hence, this study focuses on the pathological changes in rat lung following nicotine administration and the role of exercise in reversing the nicotine-induced lung injury. This is a randomized controlled trial with 3 groups of rats. Control (CG), nicotine-exposed (NG), and nicotine-exposed and exercise group (NEG). Control group received no intervention. Both NG and NEG were given 1.5 mg/kg nicotine base, daily, subcutaneously, but NEG were also subjected to an intensive daily swimming protocol. The rats were sacrificed and the lung tissue was processed for light and transmission electron microscopic and immunohistochemical studies. Compared with the control group, the nicotine group showed enlargement and destruction of the alveolar septum, cellular hyperplasia and interstitial fibrosis, and interstitial mononuclear cell infiltration with increased intraluminal macrophages. There was only modest morphological change between the nicotine administered and nicotine and exercise groups. Expression of superoxide dismutase (SOD) and catalase showed a mild increase in the NEG, whereas glutathione peroxidase (GPX) showed mild and moderate increase in the expression in the NG and NEG, respectively. This study shows that nicotine induces substantial pathological changes in the lung and prolonged exercise may have some beneficial effects in partially reversing the nicotine-induced lung injury by inducing the expression of antioxidants.

Cardiovascular responses to repetitive McKenzie lumbar spine exercises.

BACKGROUND AND PURPOSE: Repetitive exercises of the type recommended by McKenzie for the lumbar spine, such as flexion and extension exercises in standing (FIS and EIS) and lying positions (FIL and EIL), have been used in the management of low back pain for over 20 years. The cardiovascular effects of exercises that involve postural stabilization and the arms and of exercises performed in a lying position are well known. Therefore, the purpose of this study was to examine the cardiovascular effects of 4 exercises used in the McKenzie system. SUBJECTS AND METHODS: One hundred subjects without cardiovascular or cardiopulmonary disease (mean age=31 years, SD=6.1, range=22-44) and who were representative of people susceptible to low back pain were studied. Subjects were randomly assigned to 1 of 4 exercise groups (ie, FIS, EIS, FIL, and EIL). Subjects performed sets of 10, 15, and 20 repetitions of the assigned exercise, with a 15-minute rest between sets. Heart rate, blood pressure, and rate-pressure product (an index of myocardial work) were recorded before and after each set of repetitions. RESULTS: After 10 repetitions, flexion and extension in lying were more hemodynamically demanding than in standing. This trend persisted for 15 and 20 repetitions; however, at 20 repetitions, the hemodynamic demands were different across exercise groups (ie, FIL>EIL>FIS>EIS). DISCUSSION AND CONCLUSION: Repetitive exercises of the type suggested by McKenzie for the lumbar spine can have cardiovascular effects in people with no cardiovascular or cardiopulmonary conditions. These effects may be important with respect to cardiac work, and patients for whom these exercises are indicated should have a cardiac and pulmonary risk factor assessment to determine whether heart rate and blood pressure should be monitored.

The role of anticipation and fear of pain in the persistence of avoidance behavior in patients with chronic low back pain.

STUDY DESIGN: A correlative design using stepwise regression analysis. OBJECTIVE: To explore the variation in spinal isometric strength that can be accounted for by anticipation of pain, sensory perception of pain, functional disability belief, and the fear-avoidance belief in chronic low back pain patients. SUMMARY OF THE BACKGROUND DATA: Several biobehavioral factors contribute to the persistence of pain behavior in chronic patients. Recent studies suggest a need to explore the relation between reduced physical performance and the sensory and cognitive perception of pain. METHODS: Sixty-three patients with chronic low back pain 20 to 56 years of age participated in this study. Visual Analogs Scales, the Fear-Avoidance Belief questionnaire, and the Disability Belief questionnaire were used to measure the sensory and cognitive dimensions of pain. Spinal isometric strength was measured by the Medx lumbar extension machine. RESULTS: Analysis of variance and the stepwise regression analysis demonstrated that anticipation of pain and the fear-avoidance belief about physical activity significantly predicted variation in the spinal isometric strength deficit P < 0. 001. True pain experienced during the testing and answers to the Disability Belief questionnaire were not related. CONCLUSION: The results of this study strongly support the hypothesis that spinal physical capacity in chronicity is not explained solely by the sensory perception of pain. The anticipation of pain and the fear-avoidance belief about physical activities were the strongest predictors of the variation in physical performance.

Hydrocortisone and exercise effects on articular cartilage in rats.

The combined effects of hydrocortisone and running exercise on articular cartilage were assessed in female Sprague-Dawley rats. Animals were divided into three groups: 12 control (C), 12 who received an injection of 0.1 mL hydrocortisone once a week for three weeks (HC), and 12 rats who received three weekly injections of hydrocortisone and ran twice daily for six weeks (HC + run). Previous study revealed that rats that ran on a treadmill for three to 12 months did not have articular cartilage that was different from controls and thus a fourth group of rats, runners only, was not included in this analysis. At sacrifice, both knees were examined, photographed, and subsequently decalcified, then sectioned at 6 mu and stained. HC + run rats had significant more surface degeneration on femoral cartilage than HC or C rats. Eight of 12 HC + run rats displayed fibrotic invasion and/or subchondral bone replacement of degenerated articular cartilage, a feature not seen in HC or C rats. Cross-sections from HC + run rats displayed areas of cell death, and loss of matrix staining. Results suggest that, in rats, running exercise combined with intraarticular injections of hydrocortisone is more detrimental to articular cartilage than hydrocortisone or running alone.

Reproductive characteristics of lambs actively immunized early in life with inhibin-enriched preparations from follicular fluid of cows.

Active immunization of Merino and crossbred ewe lambs early in life with a partly purified inhibin derived from bovine follicular fluid (bFF) advanced their puberty. This occurred whether the lambs were immunized from 3 weeks of age or from 9 weeks of age or just 3 times between 3 and 9 weeks. However, the effect was more obvious with multiple injections starting at 3 weeks of age. The ovulation rate of the immunized lambs was significantly higher than that of the control ewes. When lambs were subjected to multiple immunizations the increased ovulation rate persisted in Merinos for at least 1 year after immunization ceased. The lambs injected 3 times only (at 3, 6 and 9 weeks of age) did not show any increase in ovulation rate. Plasma concentrations of FSH and LH measured in blood samples taken 1 week after immunization were not significantly different between the treatment groups. Daily sperm output in the urine and testis diameter were measured in ram lambs from the same breeds and flocks as the ewe lambs. Immunization with the inhibin preparation from 3 weeks of age resulted in a significant increase in daily sperm output (4255 +/- 701 vs 2344 +/- 344 x 10(6), P less than 0.01) and testis diameter (5.21 +/- 0.3 vs 4.33 +/- 0.2 cm, P less than 0.05) in Merino rams examined in the non-breeding season when the rams were aged 23 months. Although the same trend was seen in the following year the differences were not significant. Immunization from 9 weeks of age had no effect. A similar increase in daily sperm output was seen (at 20 and 25 months of age) in crossbred rams immunized from 3 weeks of age but the difference was not significant. Plasma concentrations of FSH (but not LH) in samples from rams immunized from 3 weeks of age were significantly higher than those of control rams at 7 and 60 weeks of age in Merino rams and at 23 and 31 weeks of age in crossbred rams. Plasma FSH concentrations at 21 and 26 weeks of age in the Merino rams immunized from 3 weeks of age were higher than those of control lambs, and these increases preceded a significant (P less than 0.05) increase in testicular diameter at 30 weeks of age (4.99 +/- 0.2 vs 4.37 +/- 0.2 cm). These results suggest that active immunization early in life with an inhibin-enriched fraction from bFF advances puberty in ewe lambs.(ABSTRACT TRUNCATED AT 400 WORDS)

Suppression of ovine plasma FSH by bovine follicular fluid: neutralization by plasma from ewes immunized against an inhibin-enriched preparation from bovine follicular fluid.

Adult Merino ewes were immunized against an inhibin-enriched preparation (bFFI) obtained by affinity chromatography of bovine follicular fluid (bFF). Plasma was obtained in early luteal phase from these ewes and from control ewes immunized against bovine serum albumin. Ten months after ovariectomy the plasma concentration of FSH, but not LH, in control ewes was decreased by four s.c. injections of 8 ml bFFI (17,500 units inhibin/injection). There was no decrease in plasma concentrations of FSH or LH in immunized ewes with the same dose of bFFI. In a second study with long-term ovariectomized ewes, four injections of 20 ml plasma from the immunized ewes significantly reduced the decrease in FSH concentration caused by four injections of steroid-free bFF (2500 units inhibin/injection) in comparison with similar ewes injected with plasma from control ewes. These results show that the plasma of ewes immunized against bFFI contains substances, presumably antibodies, which neutralize the FSH-suppressive effects of bFF and bFFI in ovariectomized ewes.

Increase in ovulation rate after immunization of Merino ewes with a fraction of bovine follicular fluid containing inhibin activity.

Affinity chromatography of bovine follicular fluid using Matrix gel Red A resulted in a 20-fold increase in inhibin-like specific activity assessed in a mouse ovulation inhibition test system. When this material was emulsified with Freund's adjuvant and injected into adult Merino ewes their mean ovulation rate was increased from 1.2 to 2.3 (P less than 0.01). Follicles of diameter greater than or equal to 3.5 mm and 2-3.4 mm were also increased (4.33 vs 2.25 and 5.39 vs 2.44 per ewe respectively). The ovulation rate response was variable and transient. Length of oestrous cycles, number of granulosa cells per follicle and seasonal oestrous patterns were not affected. Plasma from the immunized ewes contained antibodies to the immunogen and reversed the ovulation-inhibiting effects of bovine follicular fluid in mice.