Acceptance and Feasibility of Seated Elliptical Pedaling to Replace Sedentary Behavior in Older Adults.

Unlabelled: The purpose of this study was to explore the feasibility and acceptability of a seated pedaling device to reduce sedentary behavior (SB) in the homes of older adults.

Methods: Each participant (N = 20) was outfitted with an activity monitor and seated pedaling device in the home for 7 days and randomly assigned to one of four light-intensity pedaling groups (15, 30, 45, and 60 min/day).

Results: There was 100% adherence in all groups and significant group differences in the minutes pedaled per day (p < .

Isotemporal Substitution of Sedentary Behavior and Physical Activity on Function.

Unlabelled: The amount of time spent in sedentary behaviors (SB) progressively increases with age, while reducing time spent in light-intensity physical activity (LPA) and moderate- to vigorous-intensity physical activity (MVPA). These trajectories in PA and SB are linked to accelerated reductions in physical functioning.

Purpose: This study aimed to examine the association of substituting SB time with LPA and MVPA on physical function in older adults.

Acute Passive Static Stretching and Cramp Threshold Frequency.

Context:   Exercise-associated muscle cramps are a common clinical problem for athletes.

Objective:   To determine whether acute passive static stretching altered cramp threshold frequency (CTF) of electrically induced muscle cramps.

Design:   Crossover study.

Muscle activation and energy expenditure of sedentary behavior alternatives in young and old adults.

The physiological mechanisms that underlie the metabolic benefits of breaking up sedentary behavior (SB) have yet to be determined. The purpose of this study is to compare energy expenditure (EE) and muscle activation (MA) responses to sitting and four SB alternatives in younger and older adults. Twenty-two adults, grouped by age (21-35 and 62-76 years), completed five randomly ordered 20 min tasks: (1) continuous sitting (Sit), (2) sitting on a stability ball (Ball), (3) continuous standing (Stand), (4) sitting interrupted by walking (S/W), and (5) sitting interrupted by standing (S/S).

Increasing the Energy Expenditure of Seated Activities in Older Adults with a Portable Elliptical Device.

Background: The ill-health effects of sedentary behavior are becoming well-documented, yet older adults spend 70-80% of waking hours sedentary.

Purpose: To determine if a portable elliptical device increases energy expenditure (EE) while performing popular seated activities.

Methods: Twenty older adults (68.