OBJECTIVE: To assess psychometrics of hand dominance during the 9-Hole Peg Test. SUBJECTS: Sixteen healthy volunteers (23-40 years of age, 10 female and 6 male subjects, all fortuitously right handed). METHODS: As is conventional protocol, the total time to perform the task was recorded as a dexterity index. In addition, the relative distance between points (distal phalanges) on the index finger and thumb was continuously monitored by the use of a magnetic sensing system. Time required, mean values for peak distance, and cumulative total motion distance were analyzed separately for the peg-placement and peg-removal phases. Data for dominant and nondominant hands were compared by the use of paired t-tests (P < .05). RESULTS: Total time to perform the 9-Hole Peg Test was shorter for the dominant hands (mean, 18.65 seconds) than the nondominant hands (mean, 20.11 seconds). During the peg-placement phase, lower values for peak distance, cumulative total motion distance, and time required were recorded for dominant hands, suggesting more efficient movement. By contrast, during peg-removal phase, no statistically significant differences between dominant- and nondominant-hand values were apparent. CONCLUSIONS: Although healthy subjects perform the 9-Hole Peg Test more efficiently using their dominant hands, the difference in measured dexterity was observed only during the peg-placement phase. This discrepancy between the peg-placement and peg-removal efficiency suggests the need for phase discrimination in future studies. Copyright Â
OBJECTIVE: To assess psychometrics of hand dominance during the 9-Hole Peg Test. SUBJECTS: Sixteen healthy volunteers (23-40 years of age, 10 female and 6 male subjects, all fortuitously right handed). METHODS: As is conventional protocol, the total time to perform the task was recorded as a dexterity index. In addition, the relative distance between points (distal phalanges) on the index finger and thumb was continuously monitored by the use of a magnetic sensing system. Time required, mean values for peak distance, and cumulative total motion distance were analyzed separately for the peg-placement and peg-removal phases. Data for dominant and nondominant hands were compared by the use of paired t-tests (P < .05). RESULTS: Total time to perform the 9-Hole Peg Test was shorter for the dominant hands (mean, 18.65 seconds) than the nondominant hands (mean, 20.11 seconds). During the peg-placement phase, lower values for peak distance, cumulative total motion distance, and time required were recorded for dominant hands, suggesting more efficient movement. By contrast, during peg-removal phase, no statistically significant differences between dominant- and nondominant-hand values were apparent. CONCLUSIONS: Although healthy subjects perform the 9-Hole Peg Test more efficiently using their dominant hands, the difference in measured dexterity was observed only during the peg-placement phase. This discrepancy between the peg-placement and peg-removal efficiency suggests the need for phase discrimination in future studies. Copyright Â
Authors: Diego Rivera; Antonio García; Jose Eugenio Ortega; Bernardo Alarcos; Kevin van der Meulen; Juan R Velasco; Cristina Del Barrio Journal: JMIR Mhealth Uhealth Date: 2019-08-28 Impact factor: 4.773
Authors: Sharmilee Gnanapavan; Donna Grant; Steve Morant; Julian Furby; Tom Hayton; Charlotte E Teunissen; Valerio Leoni; Monica Marta; Robert Brenner; Jacqueline Palace; David H Miller; Raj Kapoor; Gavin Giovannoni Journal: PLoS One Date: 2013-08-01 Impact factor: 3.240