E-ISSN 2231-3206 | ISSN 2320-4672
 

Original Research

Online Publishing Date:
31 / 08 / 2016

 


Effect of cognitive stress on isometric contraction task

Roopa B. Ankad, Anita Herur.


Abstract
Background: Many daily life activities require motor performance while simultaneously performing a cognitive task that increases levels of arousal.

Aims and Objectives: This study aimed to know the effect of a cognitive stressor (CS) on time to task failure (TTF).

Materials and Methods: Each subject underwent three sessions. The first session included an isometric fatiguing contraction (isometric contraction [IMC]) using handgrip dynamometer. In the second session, CS was given for 2 min. In third session (IMC + CS), CS was given simultaneously with IMC. Heart rate (HR), blood pressure (BP), rate pressure product (RPP), and visual analog scale scores for anxiety (AVAS) and stress (SVAS) were recorded at rest, during three sessions and after 5 min of rest after completing the protocol. These parameters were analyzed by Student’s t-test and Pearson correlation test.

Results: TTF was significantly more in males and was positively correlated with initial strength. HR, BP, RPP, AVAS, and SVAS scores increased significantly with no gender differences during all three sessions from their respective resting levels. Systolic BP, RPP, and HR were significantly more during IMC + CS versus IMC session.

Conclusion: Exposure to CS can increase fatigability for both genders when performing low-force fatiguing contractions.

Key words: Cognitive Stress; Time to Task Failure; Isometric Contraction; Rate Pressure Product, Visual Analog Scale


 
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How to Cite this Article
Pubmed Style

Roopa B. Ankad, Anita Herur. Effect of cognitive stress on isometric contraction task. Natl J Physiol Pharm Pharmacol. 2016; 6(5): 381-387. doi:10.5455/njppp.2016.6.20160409528042016


Web Style

Roopa B. Ankad, Anita Herur. Effect of cognitive stress on isometric contraction task. https://www.njppp.com/?mno=225135 [Access: March 15, 2024]. doi:10.5455/njppp.2016.6.20160409528042016


AMA (American Medical Association) Style

Roopa B. Ankad, Anita Herur. Effect of cognitive stress on isometric contraction task. Natl J Physiol Pharm Pharmacol. 2016; 6(5): 381-387. doi:10.5455/njppp.2016.6.20160409528042016



Vancouver/ICMJE Style

Roopa B. Ankad, Anita Herur. Effect of cognitive stress on isometric contraction task. Natl J Physiol Pharm Pharmacol. (2016), [cited March 15, 2024]; 6(5): 381-387. doi:10.5455/njppp.2016.6.20160409528042016



Harvard Style

Roopa B. Ankad, Anita Herur (2016) Effect of cognitive stress on isometric contraction task. Natl J Physiol Pharm Pharmacol, 6 (5), 381-387. doi:10.5455/njppp.2016.6.20160409528042016



Turabian Style

Roopa B. Ankad, Anita Herur. 2016. Effect of cognitive stress on isometric contraction task. National Journal of Physiology, Pharmacy and Pharmacology, 6 (5), 381-387. doi:10.5455/njppp.2016.6.20160409528042016



Chicago Style

Roopa B. Ankad, Anita Herur. "Effect of cognitive stress on isometric contraction task." National Journal of Physiology, Pharmacy and Pharmacology 6 (2016), 381-387. doi:10.5455/njppp.2016.6.20160409528042016



MLA (The Modern Language Association) Style

Roopa B. Ankad, Anita Herur. "Effect of cognitive stress on isometric contraction task." National Journal of Physiology, Pharmacy and Pharmacology 6.5 (2016), 381-387. Print. doi:10.5455/njppp.2016.6.20160409528042016



APA (American Psychological Association) Style

Roopa B. Ankad, Anita Herur (2016) Effect of cognitive stress on isometric contraction task. National Journal of Physiology, Pharmacy and Pharmacology, 6 (5), 381-387. doi:10.5455/njppp.2016.6.20160409528042016