Albert B. Schultz

TL;DR: Using data from 16 published reports, the authors correlated macroscopic disc degeneration grades with age, sex, and spine level in 600 lumbar Intervertebral discs from 273 cadavers and suggest that higher mechanical stress, perhaps combined with longer nutritional pathways, may be responsible for the earlier degeneration of male discs.

TL;DR: Although all subjects successfully avoided the riskiest form of obstacle contact, tripping, 4/24 healthy old adults stepped on an obstacle, demonstrating an increased risk for obstacle contact with age.

TL;DR: Dgenerated cervical discs were less stiff in compression and stiffer in shear than less degenerated discs, but in bending or axial torsion, no statistically significant differences were evident.

TL;DR: Both young and old adults had a significantly increased risk of obstacle contact while negotiating obstacles when their attention was divided, but dividing attention degraded obstacle avoidance abilities of the old significantly more than it did in the young.

TL;DR: In this article, the authors compared chair rise performance in young and elderly adults with differing functional abilities using an instrumented chair and a videotape analysis, and quantified the chair rise performances in three groups of volunteers: young adults (Young, n = 17, mean age 23 years), elderly adults able to rise without the use of armrests (Old Able), n = 23, mean aged 72 years), and elderly older adults unable to rise (Old Unable, n= 11, mean average 84 years).