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Circadian rhythm in anaerobic power and capacity.
Can J Sport Sci 1991; 16(1):30-2CJ

Abstract

Anaerobic power and capacity were measured in nine college-age men at four different times of day: 03.00 h, 09.00 h, 15.00 h, and 21.00 h. Modified Wingate tests were performed against a common resistance of 5.5 kg (0.074 +/- 0.004 kg per kg body mass). Peak power was defined as the highest power output during a 5-s period in the test, and anaerobic capacity was defined as the total external work during the 30-s test. Peak power tended to differ across testing times (F = 2.50, p = .10), with the mean at 21.00 h about 8% higher (p less than .05) than at 03.00 h. Anaerobic capacity differed across the times of day (F = 9.58, p less than .01), with the means at 15.00 h and 21.00 h about 5% higher (p less than .05) than at 03.00 h and 09.00 h. These results suggest that there are circadian rhythms in anaerobic power and capacity.

Authors+Show Affiliations

Department of Kinesiology, University of North Texas.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

1645212

Citation

Hill, D W., and J C. Smith. "Circadian Rhythm in Anaerobic Power and Capacity." Canadian Journal of Sport Sciences = Journal Canadien Des Sciences Du Sport, vol. 16, no. 1, 1991, pp. 30-2.
Hill DW, Smith JC. Circadian rhythm in anaerobic power and capacity. Can J Sport Sci. 1991;16(1):30-2.
Hill, D. W., & Smith, J. C. (1991). Circadian rhythm in anaerobic power and capacity. Canadian Journal of Sport Sciences = Journal Canadien Des Sciences Du Sport, 16(1), pp. 30-2.
Hill DW, Smith JC. Circadian Rhythm in Anaerobic Power and Capacity. Can J Sport Sci. 1991;16(1):30-2. PubMed PMID: 1645212.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Circadian rhythm in anaerobic power and capacity. AU - Hill,D W, AU - Smith,J C, PY - 1991/3/1/pubmed PY - 1991/3/1/medline PY - 1991/3/1/entrez SP - 30 EP - 2 JF - Canadian journal of sport sciences = Journal canadien des sciences du sport JO - Can J Sport Sci VL - 16 IS - 1 N2 - Anaerobic power and capacity were measured in nine college-age men at four different times of day: 03.00 h, 09.00 h, 15.00 h, and 21.00 h. Modified Wingate tests were performed against a common resistance of 5.5 kg (0.074 +/- 0.004 kg per kg body mass). Peak power was defined as the highest power output during a 5-s period in the test, and anaerobic capacity was defined as the total external work during the 30-s test. Peak power tended to differ across testing times (F = 2.50, p = .10), with the mean at 21.00 h about 8% higher (p less than .05) than at 03.00 h. Anaerobic capacity differed across the times of day (F = 9.58, p less than .01), with the means at 15.00 h and 21.00 h about 5% higher (p less than .05) than at 03.00 h and 09.00 h. These results suggest that there are circadian rhythms in anaerobic power and capacity. SN - 0833-1235 UR - https://www.unboundmedicine.com/medline/citation/1645212/Circadian_rhythm_in_anaerobic_power_and_capacity_ DB - PRIME DP - Unbound Medicine ER -