Drs Mansuri and Colleagues Reply

Drs. Negoescu and Abraham reply.

Drs. Waljee and Chung reply.

Drs. Moon and Min reply.

Drs. Littlejohn and Guymer reply.

Reply to Venturelli and colleagues.

TO THE EDITOR: The author team of our recently published manuscript (1) on improved single muscle fiber quality in the oldest-old thank Dr. Venturelli and colleagues (5) for their thoughtful appraisal of our work. Furthermore, this group is to be commended for their efforts examining force-generating capacity in the oldest-old, both in vitro and in vivo, as a means of providing additional insig...