Estimation of aerobic exercise intensity in healthy young females by the counting talk test

Document Type : Original Article

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Abstract

Background and objective: Counting talk test (CTT) is a simple test based on ventilation function which is used to estimate the anaerobic threshold. In this study, it is established the persian version of CTT and evaluated its psychometrics features for determination of anaerobic threshold in healthy young females. Materials and Methods: Three groups of healthy female students (with low, mid, and high aerobic capacity, n=19) were selected by stratified purposeful sampling. Giving informed consent, they took part in 2 sessions of exhausting graded exercise test (EGXT) which were apart by 1 week. CTT and gas analysis were administered respectively in first and second sessions of EGXT. Ventilatory estimations of CTT were evaluated by results of EGXT. Using SPSS software, data were analyzed using by one-way ANOVA. Results: VO2max of 3 groups were significantly different (F(2, 54)≥32.44 and P≤0.01). Nevertheless, in anaerobic threshold, mean (±SD) of heart rate (HR), Borg scale, and CTT were approximately the same and respectively equaled 177(±10) beat/min, 15(±2) degree and 5(±1) numbers. In anaerobic phase, they were remained the same and respectively equaled 193(±7) beat/min, 18(±1) degree, and 3(±1) numbers. Conclusion: The results showed that CTT can be considered as good as heart rate test and sometimes can be better than Borg scale in determining anaerobic threshold and anaerobic zone. There was a negative linear correlation between CTT and intensity of training. For healthy young females, a counting of 5 indicates working in anaerobic threshold and a counting of 3 means working in anaerobic zone. The use of CTT for determination of anaerobic threshold was confirmed by our findings.

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References

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Journal of Practical Studies of Biosciences in Sport
Volume 1, Issue 2 - Serial Number 2
January 2014
Pages 84-92

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