Hunter Jayden R, Gordon Brett A, Lythgo Noel, Bird Stephen R, Benson Amanda C
School of Exercise Science, Sport and Health, Charles Sturt University, New South Wales, Australia.
Discipline of Exercise Sciences, School of Health and Biomedical Sciences, RMIT University, Victoria, Australia.
Health Promot J Austr. 2018 Apr;29(1):84-92. doi: 10.1002/hpja.2. Epub 2018 Jan 3.
Physical activity and exercise participation is limited by a perceived lack of time, poor access to facilities and low motivation. The aim was to assess whether providing an exercise program to be completed at the workplace with or without direct supervision was effective for promoting health-related physical fitness and exercise participation.
Fifty university employees aged (Mean ± SD) 42.5 ± 11.1 years were prescribed a moderate- to vigorous-intensity aerobic and resistance exercise program to be completed at an onsite facility for 8 weeks. Participants were randomly allocated to receive direct exercise supervision or not. Cardiorespiratory fitness (V̇O ) and maximal muscular strength were assessed at baseline and 8 weeks. Self-report physical activity was assessed at baseline, 8 weeks and 15 months post-intervention.
Attendance or exercise session volume were not different between groups. Cardiorespiratory fitness (Mean ± 95% CI); +1.9 ± 0.7 mL·kg·min ; P < .001), relative knee flexion (+7.4 ± 3.5 Nm·kg %; P < .001) and extension (+7.4 ± 4.6 Nm·kg %; P < .01) strength increased, irrespective of intervention group. Self-reported vigorous-intensity physical activity increased over the intervention (mean ± 95% CI; +450 ± 222 MET·minutes per week; P < .001), but did not remain elevated at 15 months (+192 ± 276 MET·minutes per week).
Providing a workplace exercise facility to complete an individually-prescribed 8-week exercise program is sufficient to improve health-related physical fitness in the short-term independent to the level of supervision provided, but does not influence long-term participation. SO WHAT?: Lower cost onsite exercise facility supervision is as effective at improving physical health and fitness as directly supervised exercise, however ongoing support may be required for sustained physical activity behaviour change.
身体活动和锻炼参与受到时间不足、设施获取不便以及动力不足的限制。目的是评估提供一个可在工作场所完成的锻炼计划，无论有无直接监督，是否对促进与健康相关的体能和锻炼参与有效。
50名年龄在（均值±标准差）42.5±11.1岁的大学员工被规定进行中等至高强度的有氧和阻力锻炼计划，在现场设施中完成8周。参与者被随机分配接受直接锻炼监督或不接受。在基线和8周时评估心肺适能（V̇O ）和最大肌肉力量。在基线、8周和干预后15个月评估自我报告的身体活动。
两组之间的出勤或锻炼课程量没有差异。心肺适能（均值±95%置信区间）；+1.9±0.7mL·kg·min ；P<.001）、相对屈膝力量（+7.4±3.5Nm·kg %；P<.001）和伸展力量（+7.4±4.6Nm·kg %；P<.01）增加，与干预组无关。自我报告的高强度身体活动在干预期间增加（均值±95%置信区间；+450±222MET·分钟/周；P<.001），但在15个月时未保持升高（+192±276MET·分钟/周）。
提供一个工作场所锻炼设施以完成个人规定的8周锻炼计划足以在短期内改善与健康相关的体能，与提供的监督水平无关，但不影响长期参与。那又如何？：低成本的现场锻炼设施监督在改善身体健康和体能方面与直接监督锻炼一样有效，然而持续的身体活动行为改变可能需要持续支持。
