Medicine and science in sports and exercise
-
Med Sci Sports Exerc · May 2005
A Colorado statewide survey of walking and its relation to excessive weight.
There is an urgent need to increase the physical activity in the population. Small-scale success has been achieved in programs like Colorado on the Move (COM), an obesity prevention program using electronic pedometers. ⋯ Increasing steps per day appears to be a good target to use in interventions to increase physical activity. Even in Colorado, one of the leanest states, very low levels of physical activity are seen in much of the population.
-
Med Sci Sports Exerc · Apr 2005
Randomized Controlled Trial Clinical TrialResponsiveness of continuous ratings of dyspnea during exercise in patients with COPD.
To examine the responsiveness of a new computerized method for patients to provide continuous ratings of dyspnea during exercise in patients with chronic obstructive pulmonary disease (COPD). ⋯ Continuous ratings of dyspnea were responsive to inhaled bronchodilator therapy during both incremental and constant work exercise tests in patients with symptomatic COPD.
-
Med Sci Sports Exerc · Apr 2005
Physical activity among adults >or=50 yr with and without disabilities, BRFSS 2001.
Before 2001, the Behavioral Risk Factor Surveillance System (BRFSS), a national survey of health behaviors, assessed only leisure-time physical activity. In 2001, the BRFSS used newly developed physical activity items to evaluate combined leisure-time, household, and transportation activities. Using BRFSS 2001 data, this cross-sectional study describes the prevalence of inactivity and insufficient and recommended physical activity for older adults (i.e., aged >or=50 yr). ⋯ Not all persons with disabilities can be active at recommended levels, but it is possible for the vast majority to do some types of physical activity, even if at insufficient levels. Thus, it may be possible for the prevalence of inactivity among persons with and without disabilities to be similar. This was not found. At the start of the new millennium, almost 60% of older adults without disabilities and 70% with disabilities were not obtaining a recommended amount of combined leisure-time, transportation, and household physical activity.
-
Med Sci Sports Exerc · Mar 2005
Randomized Controlled Trial Clinical TrialOxidation of combined ingestion of maltodextrins and fructose during exercise.
To determine whether combined ingestion of maltodextrin and fructose during 150 min of cycling exercise would lead to exogenous carbohydrate oxidation rates higher than 1.1 g.min. ⋯ The present study demonstrates that with ingestion of large amounts of maltodextrin and fructose during cycling exercise, exogenous carbohydrate oxidation can reach peak values of approximately 1.5 g.min, and this is markedly higher than oxidation rates from ingesting maltodextrin alone.
-
Med Sci Sports Exerc · Feb 2005
Randomized Controlled TrialPhysical therapy improves knee flexion during stair ambulation in patellofemoral pain.
This study aimed to examine whether a physical therapy intervention, designed to reduce pain and improve the neuromotor control resulted in greater improvements in stance-phase knee flexion during stair ambulation in individuals with patellofemoral pain. The relationship between changes in stance-phase knee flexion and changes in pain, disability, and onset timing of individual vasti activity was also examined. ⋯ Physical therapy intervention resulted in significantly greater changes in knee joint motion than a placebo treatment, and these changes in knee motion were partly related to changes in pain and changes in onset timing of the vasti.