The effect of a supported exercise programme in patients with newly diagnosed Type 2 diabetes: A pilot study

Abstract

The aim of this study was to examine the effectiveness of either a standard care programme (n?=?9) or a 12-week supported exercise programme (n?=?10) on glycaemic control, β-cell responsiveness, insulin resistance, and lipid profiles in newly diagnosed Type 2 diabetes patients. The standard care programme consisted of advice to exercise at moderate to high intensity for 30?min five times a week; the supported exercise programme consisted of three 60-min supported plus two unsupported exercise sessions per week. Between-group analyses demonstrated a difference for changes in low-density lipoprotein cholesterol only (standard care programme 0.01 mmol?·?L^?1, supported exercise programme –0.6 mmol?·?L^?1; P?=?0.04). Following the standard care programme, within-group analyses demonstrated a significant reduction in waist circumference, whereas following the supported exercise programme there were reductions in glycosylated haemoglobin (6.4 vs. 6.0%; P?=?0.007), waist circumference (101.4 vs. 97.2?cm; P?=?0.021), body mass (91.7 vs. 87.9?kg; P?=?0.007), body mass index (30.0 vs. 28.7?kg?·?m^?2; P?=?0.006), total cholesterol (5.3 vs. 4.6 mmol?·?L^?1; P?=?0.046), low-density lipoprotein cholesterol (3.2 vs. 2.6 mmol?·?L^?1; P?=?0.028), fasting β-cell responsiveness (11.5?×?10^?9 vs. 7.0?×?10^?9 pmol?·?kg^?1?·?min^?1; P?=?0.009), and insulin resistance (3.0 vs. 2.1; P?=?0.049). The supported exercise programme improved glycaemic control through enhanced β-cell function associated with decreased insulin resistance and improved lipid profile. This research highlights the need for research into unsupported and supported exercise programmes to establish more comprehensive lifestyle advice for Type 2 diabetes patients.     

Relationship between a 14-Day Recall Measure of Leisure-Time Physical Activity and a Submaximal Test of Physical Work Capacity in a Population Sample of Australian Adults

Abstract

This paper reports on the validity of a 14-day recall measure of leisure time physical activity (LTPA) in a sample of Australian adults (N = 986). Submaximal cycle ergometry was used to assess physical work capacity per kilogram of body mass (pwc75/kg). The self-report energy expenditure estimates were used to categorize respondents as vigorously active, moderately active, and low active/sedentary. Multiple regression analyses showed that pwc75/kg increased significantly across energy expenditure categories for adults aged less than 40 years; that the vigorous and moderate activity categories had greater mean pwc75/kg values than the low/sedentary category for 40 to 59-year-olds; and, that there were no differences in pwc75/kg between activity categories for those aged 60 years or older.     

Does whole body vibration training affect knee kinematics and neuromuscular control in healthy people?

Abstract

This study aimed to investigate the effect of whole body vibration (WBV) training on the knee kinematics and neuromuscular control after single-legged drop landings. Surface electromyographic (EMG) activity of the rectus femoris and hamstring muscles and knee and ankle accelerometry signals were acquired from 42 healthy volunteers. Participants performed three pre-test landings and after a recovery period of three minutes, they completed one set of six bouts of WBV each of one minute duration (30 Hz – 4 mm), followed by a single-leg drop landing. After the WBV intervention no significant changes were observed in the kinematic outcomes measured, although the time to stabilise the lower-limb was significantly lower after the vibration training (F(8,41) = 6.55; P < 0.01). EMG analysis showed no significant differences in the amplitude of rectus femoris or hamstring muscles after WBV training, however, significant differences in EMG frequency of the rectus femoris were found before (F(8,41) = 7.595; P < 0.01) and after toe-down (F(8,41) = 4.440; P < 0.001). Finally, no significant changes were observed in knee or ankle acceleration after WBV. Results suggest that WBV can help to acutely enhance knee neuromuscular control, which may have clinical significance and help in the design of rehabilitation programmes.     

An Australian Version of the Neighborhood Environment Walkability Scale: Validity Evidence

This study examined validity evidence for the Australian version of the Neighborhood Environment Walkability Scale (NEWS-AU). A stratified two-stage cluster sampling design was used to recruit 2,650 adults from Adelaide (Australia). The sample was drawn from residential addresses within eight high-walkable and eight low-walkable suburbs matched for socio-economic status (SES). Neighborhood walkability was measured using Geographic Information Systems data on dwelling density, intersection density, net retail area, and land-use mix. Participants completed the NEWS-AU and reported weekly minutes of walking for transport and recreation (International Physical Activity Questionnaire [IPAQ]). Multilevel confirmatory factor analysis (MCFA) was used to define the individual- and Census Collection District (CCD)-level measurement model of the NEWS-AU. Seven individual-level and five CCD-level factors were identified. These measurement models were somewhat similar to those of the original Neighborhood Environment Walkability Scale (NEWS). Patterns of associations between the NEWS-AU factors/scales and the walking measures provided some validity evidence for the instrument.     

This Sporting Mammon: A Normative Critique of the Commodification of Sport

The advent of communications technology has enabled large and world-wide audiences to have visual access to sports whose spatially limited field of action prevents such numbers of interested spectators attending the event in person to witness them. Simultaneously a number of new issues for sport have arisen. Recognising that spectators’ location and distance from sporting events at times permit audiences viewing at home to enjoy a better view of the action, organisers sometimes erect huge screens relaying the action at sporting arenas to redress this disadvantage. But the facility to focus in close-up, slow-motion, repeat display and from several angles provides not only a detailed inspection of sporting episodes, but also a mechanism for quality control of refereeing decisions. This article examines one recent attempt to make recommendations concerning the relative role of technology and humans in officiating, given an analysis of the problems technology can cause officials.     

The World Bank's policy paper on vocational and technical education and training

In addition to numerous articles in professional journals, some of his major works include The Neglected Source of Human Wealth: A Study of Formal Education and Training during the Adult Years(1982) and The Lingering Crisis of Youth Unemployment (1978).