The optimal treatment duration for inspiratory muscle strengthening exercises in stroke patients: a double-blinded randomized controlled trial.

Background: Little is known about the ideal duration of inspiratory muscle training in stroke patients.

Objective: The aim of this study was to assess the effects of short-term and long-term inspiratory muscle strengthening exercises in stroke patients.

Methods: This study was a prospective, double-blind, randomized controlled trial involving 50 stroke patients.

Arsenic and selenium measurements in nail and hair show important relationships to Alzheimer's disease in the elderly.

Background And Research Question: The relationships of Arsenic (As) and selenium (Se) to Alzheimer's Disease (AD) are not clearly known. This case-control observational study aims to investigate the possible relationship of these elements to the diagnosis and pathophysiology of the disease.

Methods: This case-control observational study was performed using 40 AD patients in different clinical stages and 40 healthy control subjects, living in a similar environment with low As exposure.