This study examined whether the net rate of oxygen uptake (VO2net) and the net oxygen uptake per kilometer (VO2net/km) are affected during walking in adults with Down syndrome (DS) and whether their preferred walking speed (PWS) minimizes the VO2net/km. Respiratory gases were collected as 14 adults with DS and 15 adults without DS completed a series of treadmill walking trials. PWS was measured over 15 meters in a hallway. The VO2net and the VO2net/km were higher in adults with DS than adults without DS. The overground PWS normalized for leg length was the same for both groups and did not appear to minimize the VO2net/km. Thus, adults with DS are less economical during walking than adults without DS. The overground PWS does not minimize the metabolic cost during treadmill walking.
Stamatis Agiovlasitis, Jeffrey A. McCubbin, Joonkoo Yun, Michael J. Pavol and Jeffrey J. Widrick
Phillip D. Tomporowski and Larry D. Jameson
Institutionalized severely and profoundly mentally retarded adults participated in two exercise programs. One group of 19 subjects performed a circuit-training regimen consisting of treadmill walking, stationary bicycle riding, rowing, and calisthenics. Exercise sessions lasted 60 minutes and were performed every third day during an 18-week training period. A second group of 19 subjects participated in an 18-week jogging regimen which consisted of running distances of 1/2, 1, or 1 1/2 miles each session. The exercise requirements in both programs were increased progressively during the course of training. Subjects adapted quickly to both exercise regimens and almost all improved their physical endurance and ability to exercise. It is suggested that the highly motivating characteristics of exercise may provide educators with a training medium through which new skills can be taught to severely and profoundly mentally retarded adults.
Gisela Kobberling, Louis W. Jankowski and Luc Leger
The oxygen consumption (VO2) of 30 (10 females, 20 males) legally blind adolescents and their sighted controls were compared for treadmill walking (3 mph, 4.8 km/h) and running (6 mph, 9.6 km/h). The VO2 of the visually impaired subjects averaged 24.4% and 10.8% higher than those of their same-sex age-matched controls, and 42.8% and 11.2% higher than the American College of Sports Medicine (ACSM) norms for walking (p<.01) and running (p<.05), respectively. The normal association between aerobic capacity and locomotor energy costs was evident among the sighted controls (r= .44, p<.05) but insignificant (r=.35, p>.05) for the visually impaired subjects. The energy costs of both walking and running were highest among the totally blind subjects, and decreased toward normal as a function of residual vision among the legally blind subjects. The energy costs of walking and running for blind adolescents are higher than both those of sighted controls and the ACSM norm values.
Brandon R. Rigby, Ronald W. Davis, Marco A. Avalos, Nicholas A. Levine, Kevin A. Becker and David L. Nichols
.1097/00005768-199906000-00001 10.1097/00005768-199906000-00001 Toole , T. , Maitland , C. , Warren , E. , Hubmann , M. , & Panton , L. ( 2005 ). The effects of loading and unloading treadmill walking on balance, gait, fall risk, and daily function in Parkinsonism . NeuroRehabilitation, 20 , 307 – 322 . PubMed ID
Mohsen Shafizadeh, Nicola Theis and Keith Davids
treadmill walking and running . Sports Engineering, 15 , 207 – 213 . doi:10.1007/s12283-012-0093-8 10.1007/s12283-012-0093-8 Mercer , J.A. , Vance , J. , Hreljac , A. , & Hamill , J. ( 2002 ). Relationship between shock attenuation and stride length during running at different velocities
Alice M. Buchanan, Benjamin Miedema and Georgia C. Frey
. Examples of specific questions are What was her physical education experience like? Was there adapted PE in his school? What does she like to do in her leisure time? PA was not explicitly defined unless the participant asked, and responses such as martial arts, walking, swimming, and treadmill walking all