Assessing the Validity of Several Heart Rate Monitors in Wearable Technology While Mountain Biking.

Purpose: This study sought to assess the validity of several heart rate (HR) monitors in wearable technology during mountain biking (MTB), compared to the Polar H7® HR monitor, used as the criterion device.

Methods: A total of 20 participants completed two MTB trials while wearing six HR monitors (5 test devices, 1 criterion). HR was recorded on a second-by-second basis for all devices analyzed.

Digital logistics: Enchantment in distribution channels.

This article analyzes ways that logistical services add value to products over and above traditional utility tradeoffs as a result of a confluence of aesthetic, economic, and cultural facets that we identify as We delve into how enchantment might be digitally articulated through mediated (as opposed to brick and mortar) consumption, paying attention to the cultural techniques and affordances of the platforms and spaces. Through a series of case studies, we examine ways in which enchantment can occur in digitally mediated shopping environments. Our case studies suggest that enchanted digital logistical channels extend the value-creating functions of traditional logistics by creating consumption circumstances that surprise and intrigue, that suggest perceived scarcity, and that use social media to approach consumers in multiple ways to procure enchantment.

Effects of nutraceutical intervention on serum proteins in aged rats.

Aging is associated with many pathophysiological changes that could lead to the onset of degenerative disease. Some of the physiological changes that occur with aging include increased inflammation and decreased stem cell proliferation, leading to decreased capacity for tissue regeneration and loss of function. In previous studies, we and others have found nutraceutical intervention to ameliorate some of the deleterious effects associated with aging.