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Table 2 Median (interquartile range) and percentage differences in cycling time, speed, exercise intensity (% of maximal oxygen consumption), energy expenditure (metabolic equivalents attained during cycling based on 1 MET–3.5 ml O2 · kg -1 · min-1 and measured RMR), moderate-to-vigorous intensity physical activity and vigorous intensity physical activity during electrically assisted- and conventional biking presented combined and stratified on flat and hilly

From: Physical activity when riding an electric assisted bicycle

 

Total

Flat

Hilly

Cycling time (min)

 E-bike

19.9 (3.1)

20.0 (2.9)

18.8 (4.9)

 Conventional

25.1 (3.9)

23.8 (1.8)

26.3 (6.4)

 Δ (%)

-21

-16

-29

Speed (km · h-1)

 E-bike

23.1 (3.7)

24.6 (3.5)

22.7 (5.6)

 Conventional

18.4 (2.7)

20.7 (1.5)

16.3 (4.2)

 Δ (%)

21

16

29

% \( \overset{.}{\mathrm{V}}{\mathrm{O}}_2 \max \)

 E-bike

51 (27)

52 (19)

50 (18)

 Conventional

58 (26)

55 (12)

60 (22)

 Δ (%)

-12

-6

-17

Measured METs (ml · kg -1 · min-1)

 E-bike

8.5 (3.1)

8.4 (3.3)

8.4 (3.2)

 Conventional

10.9 (2.7)

10.3 (2.8)

10.8 (3.1)

 Δ (%)

-22

-19

-22

Estimated METs (ml · kg -1 · min-1)

 E-bike

6.9 (2.1)

6.9 (1.9)

6.8 (2.5)

 Conventional

8.4 (1.8)

8.1 (2.5)

8.5 (2.1)

 Δ (%)

-18

-15

-20

MVPA (min)

 E-bike

19.0 (2.7)

19.5 (3.4)

18.0 (2.8)

 Conventional

23.9 (3.6)

23.5 (2.6)

24.3 (4.6)

 Δ (%)

-21

-17

-26

VPA (min)

 E-bike

15.5 (4.1)

17.5 (5.3)

14.0 (2.5)

 Conventional

20.8 (3.1)

20.5 (4.0)

21.5 (1.8)

 Δ (%)

-26

-15

-35

  1. Abbreviations: E-bike electrically assisted bicycle, Δ percentage difference between electrically assisted- and conventional biking; \( \overset{.}{\mathrm{V}}{\mathrm{O}}_2 \) oxygen consumption, METs Metabolic Equivalents, MVPA moderate-to-vigorous intensity physical activity, VPA vigorous intensity physical activity