Accession Number:

ADB142374

Title:

Training, Muscle Fatigue, and Stress Fractures

Descriptive Note:

Final rept. 15 Nov 1985-15 Apr 1989

Corporate Author:

ARMY MEDICAL RESEARCH AND DEVELOPMENT COMMAND FORT DETRICK MD

Personal Author(s):

Report Date:

1990-03-01

Pagination or Media Count:

20.0

Abstract:

The stress fracture is one of the most frequent injuries in peacetime military populations, responsible for the militarys greatest drain of both lost recruit time and medical resources. Unfortunately, not until we improve our understanding of the causative agents of this pathology can we expect to take effective measures in diminishing its appearance. Thus far, the studies we have undertaken have demonstrated that the origins of the lesion stem from tissue remodeling to material microdamage. As importantly, the site of the lesion, when correlated to the mechanical environment to which the bone is subjected, emphasizes that the pathology predominates in areas of least strain, not those areas subject to greatest deformation. Finally, the pathology observed in the two animal models is histologically identical to that which occurs in the human condition, demonstrating that appropriateness of the extrapolation towards the pathogenesis of the human condition. These observations have led to the development of a new hypothesis which holds major implications towards the design and modification of recruit training regimen. Keywords Stress fractures Bone remodeling Training Muscle fatigue Strain.

Subject Categories:

  • Medicine and Medical Research
  • Stress Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE