Novis B James, Hargreaves Elaine A, Jowett Tim, Rehrer Nancy J
School of Physical Education Sport & Exercise Sciences, University of Otago, Dunedin, New Zealand.
Department of Mathematics and Statistics, University of Otago, Dunedin, New Zealand.
Eur J Sport Sci. 2025 May;25(5):e12289. doi: 10.1002/ejsc.12289.
The aim of this study was to evaluate effects of a 10-week commuter cycling intervention on physical activity (PA), cardiometabolic health and body composition. A randomised controlled trial was conducted in healthy males and females (n = 26, BMI ≤ 30, ≥ 20 years ≤ 55 years). The intervention group (CYC) cycle commuted (148 ± 38 min.wk). The control group (CON) received public transport or petrol vouchers. O increased in CYC (10.5 ± 16.2%), decreased in CON (-2.8 ± 12.3%) (p = 0.03). HR decreased in CYC (-5.4 ± 6.8%), increased in CON (1.7 ± 9.5%) (p = 0.02) as did diastolic blood pressure (-1.2 ± 7.5%, 11.9 ± 16.5%, respectively, p = 0.02). Weekly logbooks indicated no group difference in total PA (Group p = 0.15) or change over time (p = 0.18). CYC conducted more moderate and vigorous PA combined (p = 0.008). No changes in body mass were observed (CYC: wk0 78.5 ± 9.0, wk10 78.7 ± 9.0, CON: wk0 69.8 ± 6.7, wk10 70.3 ± 6.7 (p = 0.17), or difference between groups (p = 0.61). Body fat (sum of 4 skinfolds) was maintained similarly in both groups (p = 0.95). Body fat (DXA) was 29.4 ± 9. 7% before and 29.5 ± 9.8% after in CYC (p = 0.97). The intervention did not alter C-reactive protein, HDL, LDL, or total cholesterol, fasting glucose, insulin or HOMA-IR (p > 0.05). In conclusion, some cardiovascular benefits can occur with commuter cycling even if total PA and body composition are not altered. The increase in more intensive PA is likely responsible for the enhanced cardiovascular fitness. TRIAL REGISTRATION: The study was registered with the Australian New Zealand Clinical Trials Registry (ANZTCR:12617000123347).
本研究的目的是评估为期10周的通勤骑行干预对身体活动（PA）、心脏代谢健康和身体成分的影响。在健康男性和女性（n = 26，BMI≤30，年龄≥20岁且≤55岁）中进行了一项随机对照试验。干预组（CYC）采用骑行通勤（每周148±38分钟）。对照组（CON）获得公共交通券或汽油券。CYC组的O增加了（10.5±16.2%），CON组减少了（-2.8±12.3%）（p = 0.03）。CYC组的心率下降了（-5.4±6.8%），CON组增加了（1.7±9.5%）（p = 0.02），舒张压也有类似变化（分别为-1.2±7.5%，11.9±16.5%，p = 0.02）。每周的日志显示，两组在总PA方面没有差异（组间p = 0.15），随时间的变化也没有差异（p = 0.18）。CYC组进行的中等强度和剧烈强度PA的总和更多（p = 0.008）。未观察到体重变化（CYC组：第0周78.5±9.0，第10周78.7±9.0；CON组：第0周69.8±6.7，第10周70.3±6.7（p = 0.17），组间差异也无统计学意义（p = 0.61）。两组的体脂（4个皮褶厚度之和）维持情况相似（p = 0.95）。CYC组的体脂（双能X线吸收法）在干预前为29.4±9.7%，干预后为29.5±9.8%（p = 0.97）。该干预未改变C反应蛋白、高密度脂蛋白、低密度脂蛋白、总胆固醇、空腹血糖、胰岛素或胰岛素抵抗指数（p>0.05）。总之，即使总PA和身体成分没有改变，通勤骑行也可能带来一些心血管益处。更剧烈的PA增加可能是心血管健康改善的原因。试验注册：该研究已在澳大利亚新西兰临床试验注册中心注册（ANZTCR：12617000123347）。
