Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University, Umeå, Sweden.
Institute of Nursing and Health Research, Ulster University, Jordanstown, UK.
Biomed Res Int. 2018 Jan 23;2018:5427201. doi: 10.1155/2018/5427201. eCollection 2018.
Establishing the effects of low intensity cycling (LC), moderate intensity cycling (MC), and standing at a simulated office workstation on pain modulation, work performance, and metabolic expenditure.
36 healthy adults (21 females), mean age 26.8 (SD 7.6) years, partook in this randomized 3 × 3 crossover trial with 75 minutes of LC on 20% of maximum aerobic power (MAP) output, 30 minutes of MC on 50% of MAP, and standing 30 minutes with 48-hour wash-out periods. Outcome measures were pain modulation (pressure pain threshold (PPT) and thermal pain threshold)), work performance (transcription, mouse pointing, and cognitive performance), and metabolic expenditure.
PPTs increased in all conditions. PPT trapezius showed the highest increase after LC, 39.3 kilopascals (kPa) (15.6; 78.6), compared to MC, 17.0 kPa (2.8; 49.9), and standing, 16.8 kPa (-5.6; 39.4), = 0.015. Transcription was reduced during LC and MC. Mouse pointing precision was best during standing and worst and slowest during MC. Cognitive performance did not differ between conditions. Metabolic expenditure rates were 1.4 (1.3; 1.7), 3.3 (2.3; 3.7), and 7.5 (5.8; 8.7) kcal/minute during standing, LC, and MC, respectively ( < 0.001).
LC seems to be the preferred option; it raised PPTs, more than doubled metabolic expenditure, whilst minimally influencing work performance.
研究低强度骑行（LC）、中等强度骑行（MC）和站立在模拟办公工作站对疼痛调节、工作表现和代谢消耗的影响。
36 名健康成年人（21 名女性），平均年龄 26.8（7.6）岁，参与了这项随机 3×3 交叉试验，分别进行 20%最大有氧能力（MAP）输出的 LC 75 分钟、50%MAP 的 MC 30 分钟和站立 30 分钟，有 48 小时的洗脱期。测量指标包括疼痛调节（压痛阈值（PPT）和热痛阈值）、工作表现（转录、鼠标指向和认知表现）和代谢消耗。
所有条件下的 PPT 都增加了。LC 后斜方肌的 PPT 增加最高，为 39.3 千帕（kPa）（15.6；78.6），与 MC 相比，增加了 17.0 kPa（2.8；49.9），站立时增加了 16.8 kPa（-5.6；39.4）， = 0.015。LC 和 MC 期间转录减少。鼠标指向精度在站立时最佳，在 MC 时最差且最慢。认知表现没有区别。代谢消耗率在站立、LC 和 MC 时分别为 1.4（1.3；1.7）、3.3（2.3；3.7）和 7.5（5.8；8.7）千卡/分钟（<0.001）。
LC 似乎是首选方案；它提高了 PPT，使代谢消耗增加了一倍多，而对工作表现的影响最小。
Zotero 插件