Table 1.

Previous methods used to elicit the Jendrassik maneuver.

Study	Methods
	HC	IF	HG	LLC	ULC	TC
Myriknas et al. (2000)	+
Bussel et al. (1978)			+
Murthy et al. (1978)			+	+
Kawamura and Watanabe (1975)					+
Nardone and Schieppati (2008)		+		+
Delwaide and Toulouse (1981)				+	+
Hagbarth et al. (1975)		+
Zehr and Stein (1999)	+	+				+
Khanal et al. (2007)		+
Gregory et al. (2001)		+	+
Ribot-Ciscar et al. (2000)	+
Zabelis et al. (1998)		+

HC: Hand clenching; IF: hand pull by trying to pull interlocked fingers apart (similar to our HP protocol); HG: Handgrip; LLC: Lower limb contraction (by different methods); ULC: Upper limb contraction (by different methods); TC: Any limb contraction together with teeth clenching.