Research Article

Acu-TENS and Postexercise Expiratory Flow Volume in Healthy Subjects

Table 1

Variables recorded at different postexercise time points.

Acu-TENS
Placebo-TENS
Mean difference Acu-TENS − Placebo-TENS (95%CI) value

Peak heart rate (beats per min)180.7 ± 5.7182.1 ± 6.0−1.4 (−7.1 to 4.3).606
Heart Rate, % maximum92.6 ± 2.593.3 ± 2.8−0.7 (−3.7 to 2.2).601
Rate of perceived exertion17.0 ± 0.417.2 ± 0.5−0.2 (−0.6 to 0.2).341
Exercise duration, min17.1 ± 0.516.1 ± 0.60.9 (0.1 to 1.7).026
Δ FEV1 postexercise, %
 0 min3.4 ± 1.40.5 ± 0.92.9 (−0.6 to 6.4).098
 15 min3.1 ± 1.7−0.2 ± 1.13.3 ( 0.9 to 5.8).013
 30 min2.5 ± 1.3−1.0 ± 1.23.5 (−1.3 to 8.3).135
 45 min3.0 ± 1.2−2.1 ± 1.25.1 (0.1 to 10.1).047
Δ FVC postexercise, %
 0 min−3.0 ± 1.6−2.6 ± 1.3−0.4 (−3.5 to 2.7).784
 15 min0.0 ± 1.30.5 ± 1.3−0.5 (−3.7 to 2.8).763
 30 min0.0 ± 1.10.1 ± 1.4−0.1 (−3.5 to 3.4).974
 45 min−0.2 ± 1.0−1.0 ± 1.70.8 (−3.6 to 5.2).705

Data are mean ± SEM unless otherwise indicated. † denotes ; FEV1: forced expiratory volume in one second, FVC: forced vital capacity, HR: heart rate; Δ denotes percentage change: (postexercise data − pre-exercise data)/pre-exercise data × 100%.