摘要:

In briefThe effects of physical training include cardiovascular and specific muscle adaptation, decreased resting heart rate, and increased cardiac size, stroke volume, maximum cardiac output, blood volume, vagal tone, and maximum breathing capacity. Young athletes with heart disease can generally participate in sports, but there is a wide spectrum of ability among them. The treadmill exercise test should be used to establish exercise norms. Children with severe mitral stenosis, aortic stenosis, idiopathic hypertrophic subaortic stenosis, active myocarditis, pulmonary hypertension, and significant arrhythmias should not participate in strenuous sports. Others with cardiac problems should be encouraged to participate for enjoyment rather than winning.

ISSN:0091-3847    

DOI:10.1080/00913847.1982.11947166

出版商:Taylor&Francis    

年代:1982

数据来源: Taylor

摘要:

In briefThe six collegiate male volleyball players in this study had moderate aerobic capacity (56 ml·kg-1·min-1) and predominantly fast twitch fiber distribution (57%) in the vastus lateralis muscle. Prolonged volleyball play resulted in a greater depletion of glycogen in slow twitch fibers than in fast twitch and no hint of anaerobic fatigue. These results suggest that in spite of the apparent explosive activity of volleyball, the overall intensity is probably mild to moderate and therefore aerobic endurance may be critical to performance.

ISSN:0091-3847    

DOI:10.1080/00913847.1982.11947167

出版商:Taylor&Francis    

年代:1982

数据来源: Taylor

摘要:

In briefMore athletes are using mandibular orthopedic repositioning appliances (MORAs), and many have claimed they cause surprising performance improvements. However, most research on this subject has suffered from serious design problems. In this double-blind experiment, control, experimental, and placebo groups of college students were tested for left and right maximal grip strength and endurance, maximal quadriceps and hamstring dynamic strength, and maximal quadriceps and hamstring static strength. Statistical analysis of the results showed that the devices did not increase the strength of the muscle groups measured or the muscular endurance of the hand.

ISSN:0091-3847    

DOI:10.1080/00913847.1982.11947168

出版商:Taylor&Francis    

年代:1982

数据来源: Taylor

摘要:

Increased blood levels of endorphins after exercise have been cited to explain everything from runners' high to reduced pain perception, but little is known about these recently isolated substances or their functions.

ISSN:0091-3847    

DOI:10.1080/00913847.1982.11947169

出版商:Taylor&Francis    

年代:1982

数据来源: Taylor

摘要:

Three islands off the coast of Charleston—Kiawah, Seabrook, and Isle of Palms—have recently emerged as year-round resort areas whose towering dunes, rough marshes, and brisk sea breezes make them a compelling attraction for golfers and tennis players.

ISSN:0091-3847    

DOI:10.1080/00913847.1982.11947170

出版商:Taylor&Francis    

年代:1982

数据来源: Taylor

摘要:

Eleven disabled climbers set out in July 1981 to show others, disabled and nondisabled, that severe handicaps could not prevent them from climbing Washington's Mt. Rainier.

ISSN:0091-3847    

DOI:10.1080/00913847.1982.11947171

出版商:Taylor&Francis    

年代:1982

数据来源: Taylor

摘要:

Chicago cardiologist Noel Nequin may be better known for organizing road races than for his work with cardiac rehabilitation patients.

ISSN:0091-3847    

DOI:10.1080/00913847.1982.11947172

出版商:Taylor&Francis    

年代:1982

数据来源: Taylor

ISSN:0091-3847    

DOI:10.1080/00913847.1982.11947173

出版商:Taylor&Francis    

年代:1982

数据来源: Taylor

ISSN:0091-3847    

DOI:10.1080/00913847.1982.11947174

出版商:Taylor&Francis    

年代:1982

数据来源: Taylor