Table 1 Physical parameters of mice exercised for 6 weeks.

From: Increased atrial arrhythmia susceptibility induced by intense endurance exercise in mice requires TNFα

 

Sedentary

Swim

Body parameters n

13

14

BW (g)

41.5±0.7

36.3±1.0*

Tibia length (mm)

19.3±0.2

19.1±0.2

Atria weight (mg)

17.7±0.6

19.2±0.4

Ventricle weight (mg)

156.2±4.8

145.7±2.2

Atria/Tibia length (mg mm−1)

0.90±0.03

0.99±0.02*

Ventricle/Tibia length (m mm−1)

8.09±0.26

7.67±0.11

Atria/body weight (mg g−1)

0.43±0.02

0.54±0.2*

Ventricle/body weight (mg g−1)

3.76±0.08

4.06±0.12*

Atria/ventricle weight (mg g−1)

114.4±5.1

132.2±3.6*

Echocardiography n

32

32

LVDd (mm)

4.21±0.03

4.43±0.03*

LVDs (mm)

2.67±0.04

2.92±0.04*

SV (μl)

53.2±0.7

56.0±1.0

EF (%)

67.1±0.8

63.0±0.9*

FS (%)

37.0±0.6

34.1±0.7*

CO (ml min−1)

26.8±0.6

24.9±0.8

Heart rate (b.p.m.)

508±10

448±12*

LVPWth (mm)

0.79±0.01

0.76±0.01*

Invasive Hemodynamics n

7

8

MAP (mm Hg)

80.5±2.1

80.4±3.6

  1. BW, body weight; CO, cardiac output; EF, ejection fraction; FS, fractional shortening; LVDd, left ventricular diastolic diameter; LVDs, left ventricular systolic diameter; LVPWth, left ventricular posterior wall thickness; MAP, mean arterial pressure. The n value shown present number of mice used. Data presented as mean±s.e.m.
  2. *P<0.05, compared with sedentary using Student’s t-test.
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