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At least 1,477 records · Page 82Linked to original sources
PubMed1991

Recreating the village: the development of groups to improve social relationships among mothers of newborn infants in Australia.

There is a clear link between social relationships and health in terms of both morbidity and mortality. The study was conducted during 1989 and 1990 among mothers of newborn infants from a middle-ranking socioeconomic status suburb in Sydney (Ryde). Thirty-four per cent of the study group had a moderate level of social isolation and 16 per cent had a high level of social isolation. These mothers strongly valued participation in the groups: virtually all original participants remained with the group both during a five-week formal period with a nursing staff member as the leader and during months and up to five years of continued meetings. The outcomes appear to be favourable in terms of the development and continuation of strong interpersonal relationships among members of the group and by improved confidence and knowledge about infant rearing. The development of groups of mothers adds no cost to the provision of health services and provides a sound and practical way of reducing social isolation and increasing mothercraft skills in an Australian suburb.

Australia↗
PubMed2005

Muscle damage, fluid ingestion, and energy supplementation during recreational alpine skiing.

This study examined energy and fluid supplementation on indices of muscle damage during alpine skiing. Skiers were assigned to a carbohydrate-protein (CP), placebo (PL), or no fluid (NF) group. CP and PL ingested 1.62 L during and after skiing. Myoglobin did not change from pre-skiing (PS) to 2 h post-skiing (2PS) for CP (24.8 +/- 1.4 and 25.6 +/- 1.6 ng/mL), but rose significantly from 26.4 +/- 1.3 to 40.0 +/- 2.8 ng/mL for PL and from 29.0 +/- 1.3 to 82.9 +/- 3.6 ng/mL for NF. Creatine kinase was maintained from PRE to 2 PS for CP, but increased significantly from 117 +/- 7.2 to 174 +/- 43.4 U/L for PL and from 126 +/- 23.2 to 243 +/- 34.3 U/L for NF. This study demonstrates that ingestion of a CP beverage minimized muscle damage indices during skiing compared to PL and NF and that ingesting fluids may also minimize muscle damage compared to a NF condition.

Adult↗
PubMed1978

Effects of dispersed recreational activities on the microbiological quality of forest surface water.

The microbiological quality of forest surface waters in the Greenwater River watershed was examined to investigate the influence of heavy motorized camping in an area with no sanitary facilities. Indicator densities increased during weekend human-use periods when compared to weekdays. Increases in indicator densities were also noted downstream from heavily used camping areas when compared to upstream sites. Seasonal, weekly, and diurnal fluctuations in indicator densities were observed. This study suggests that potential health hazards exist in this watershed during periods of human use.

Camping↗
PubMed1979

Effect of waterfowl (Anas platyrhynchos) on indicator bacteria populations in a recreational lake Madison, Wisconsin.

A public swimming beach in Madison, wis., experienced intermittent high fecal coliform counts during the late summer and early fall of 1978. Public health officials closed the beach on a number of occasions. A public health survey identified a combination of waterfowl wastes and meteorological events as the explanation for the high bacteria counts. Fecal coliform bacteria were deposited by mallard ducks and multiplied in the beach sands. The bacteria were subsequently transported into the lake and resulted in high fecal coliform counts in the swimming area.

Animals↗
PubMed2005

Acute effects of a single open sea air dive and post-dive posture on cardiac output and pulmonary gas exchange in recreational divers.

OBJECTIVE: To evaluate the cardiopulmonary effects of open sea scuba air diving to 39 m (30 minutes bottom time) with standard decompression. To account for possible gravity dependent effects of venous gas bubbles, the variables were measured in different post-dive body postures and compared with the baseline values before the dive in the same posture. METHODS: Eight male divers conducted two similar dives on successive days. Their posture before and after the dive was either sitting or supine, in random order. The divers were evaluated before and 30, 60, and 90 minutes after the dive. Venous bubbles were detected by precordial Doppler after the dive in four divers in the supine posture and two divers in the sitting posture. RESULTS: Arterialised oxygen tension had decreased at all times after the dive (-11.3 mm Hg, p = 0.00006), due to decreased alveolar oxygen tension, irrespective of posture. Apart from an increase in the sitting posture 30 minutes after the dive, pulmonary capacity for carbon monoxide diffusion and cardiac index decreased, mostly 60 minutes after the dive (-9%, p = 0.0003 and -20%, p = 0.0002 respectively). The decrease in cardiac index was greater in the supine posture (p = 0.0004), and the physiological dead space/tidal volume ratio increased more in the sitting position (p = 0.006). CONCLUSIONS: Field dives are associated with moderate impairments in cardiac output and gas exchange. Some of these impairments appear to depend on the posture of the diver after the dive.

Adult↗
PubMed1999

Effect of changing the saddle angle on the incidence of low back pain in recreational bicyclists.

OBJECTIVE: According to the literature, 30-70% of cyclists suffer from cervical, dorsal, or lumbar back pain. This study was conducted to evaluate one of the possible causes of low back pain and to suggest a solution by appropriate adjustments to the bicycle. METHODS: Serial fluoroscopic studies were performed while cyclists sat on different types of bicycle (sports, mountain, and city). Pelvic/spine angles were measured at different seat angles, and the related force vectors analysed. RESULTS: There was a tendency towards hyperextension of the pelvic/spine angle which resulted in an increase in tensile forces at the promontorium. These forces can easily be reduced by appropriate adjustment of the seat angle--that is, by creating an anterior inclining angle. The findings of the biomechanical analysis were then applied to a group of cyclists who were members of a cycling club and who complained of low back pain. After appropriate adjustment of the saddle angle, most of the cyclists (>70%) reported major improvement in the incidence and magnitude of their back pain. CONCLUSIONS: The incidence and magnitude of back pain in cyclists can be reduced by appropriate adjustment of the angle of the saddle. It is important that these findings be conveyed to cyclists, bicycle salesmen, trainers, and members of the general public who engage in cycling, in order to decrease the prevalence of back pain.

Adult↗