Table 1 Inter-device reliability in measuring mean velocity.

From: Validity and reliability of the T-Force and Chronojump systems to measure movement velocity on resistance machines with older adults

Exercise

1RM

ICC

CV

SEM

MDC

(%)

(95% CI)

(%)

(m·s− 1)

(m·s− 1)

Chest press

40

0.97 (0.92–0.99)

2.64

0.01

0.03

50

0.96 (0.90–0.98)

3.21

0.01

0.04

60

0.96 (0.89–0.98)

2.57

0.01

0.03

70

0.95 (0.86–0.98)

2.06

0.01

0.02

80

0.95 (0.86–0.98)

2.45

0.01

0.02

Leg press

40

0.97 (0.91–0.99)

2.57

0.01

0.04

50

0.98 (0.94–0.99)

2.65

0.01

0.03

60

0.98 (0.95–0.99)

1.73

0.01

0.02

70

0.98 (0.94–0.99)

1.94

0.01

0.02

80

0.97 (0.93–0.99)

1.93

0.01

0.01

  1. ICC values > 0.90 indicate excellent relative reliability, while CV values < 10% indicate acceptable absolute reliability.
  2. CI confidence interval, CV coefficient of variation, ICC intra-class correlation coefficient, RM repetition maximum, SEM standard error of measurement, MDC minimal detectable change.
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