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Table 3 Previously reported mean patellar tendon reflex total reflex time and change scores

From: Anatomically remote muscle contraction facilitates patellar tendon reflex reinforcement while mental activity does not: a within-participants experimental trial

 

TRTREST (ms)

TRTJM(ms)

TRT ChangeREST - JM (%)

Study

n

M (SD)

M (SD)

M

Clarkson (1978)

NR

83.1 (NR) to 86.3 (NR)

77.6 (NR) to 80.6 (NR)*

−5.7 to −7.6

Hayes (1972)

16

115.0 (26.8)

99.5 (NR)*

−13.5

Jacobson & Edwards (1990)

10

103.4 (15.4)

N/A

N/A

Kroll (1968)

25

70.8 (20.1)

58.8 (10.9)*

−16.9

Current study

16

117.1 (45.9)

83.1 (17.9)*

−29.0

  1. Abbreviations: Total reflex time (TRT), Jendrassik maneuver (JM), not reported (NR), not applicable (N/A).
  2. *Statistically significant difference between JM and rest.