The following is an original research article from the New England Journal of Medicine (1994): Exercise Training & Nutritional Supplementation for Physical Frailty in Very Elderly People. It was a landmark study, which demonstrated the safety and efficacy of strength training even the frail and aged at high intensities (80% 1 RM). I was very fortunate to observe this study (and to later join the USDA's research team, at Tufts University, where I studied the effects of high intensity strength and power training on functionally impaired women over the age of 70 years).

While I do not expect you to memorize any of the data, it is good practice to read original research. If you need help navigating the study, please refer to the article, "How to Read and Understand a Scientific Paper" (Module 9: Additional Resource).

Enjoy!

https://www.nejm.org/doi/full/10.1056/NEJM199406233302501

NEJM Study .pdf