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Children adult comparisons of oxygen uptake and heart rate kinetics during submaximum exercise


, : Children adult comparisons of oxygen uptake and heart rate kinetics during submaximum exercise. Research Quarterly for Exercise & Sport 54(1): 55-59

O2 (.ovrhdot.VO2) and heart rate (HR) kinetics for submaximum exercise were compared in prepubescent boys (mean age .+-. SD = 10.2 .+-. 1.28 yr, n = 21) and adult men (30.0 .+-. 5.64 yr, n = 21). Standard open circuit spirometric techniques were used to determine .ovrhdot.VO2 and a bipolar ECG was used to measure HR. The kinetics of .ovrhdot.VO2 and HR were determined for each subject using graphic procedures. Subjects performed submaximum exercise on the bicycle ergometer at an intensity of 42 .+-. 1.3% (mean .+-. SE) of .ovrhdot.VO2 max for the children and 39 .+-. 0.7% of .ovrhdot.VO2 max for the adults (P = 0.07). There were no group differences in .ovrhdot.VO2 t1/2 [half-time] (children t1/2 = 18.5 .+-. 0.75 and adults t1/2 = 17.4 .+-. 0.39 s, P = 0.18) and HR t1/2 (children t1/2 = 11.4 .+-. 1.86 s and adults t1/2 = 13.6 .+-. 1.66 s, P = 0.38). Children and adults do not differ in cardiorespiratory adjustments during low intensity exercise. This is in contrast to previous suggestions that children have a faster cardiovascular adjustment to exercise.

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Other references

Peterson, RO., 1988: The pit or the pendulum: issues in large carnivore management in natural ecosystems. University of Washington Institute of Forest Resources Contribution, 105-117 No. 65

Pichler, W.; Clement, H.; Boldin, C.; Grechenig, W.; Tesch, N.Peter., 2007: Primary transection of the superficial peroneal nerve resulting from a distal fibula fracture. Although a superficial peroneal nerve injury following an ankle fracture occurs frequently, primary transection of the nerve represents a rare injury. This report documents a case of primary lesion of the superficial peroneal nerve sustained follo...

Causse, J.; Bel, J.; Michaux, P.; Anut, Y.; Tapon, J., 1970: Surgery of fibro-adhesive otitis: "the thin teflon". Revue de Laryngologie - Otologie - Rhinologie 91(3): 284-296

Reyes-Prieto, Fán.; Hernández-Morales, R.; Jácome, R.; Becerra, A.; Lazcano, A., 2012: Coenzymes, viruses and the RNA world. The results of a detailed bioinformatic search for ribonucleotidyl coenzyme biosynthetic sequences in DNA- and RNA viral genomes are presented. No RNA viral genome sequence available as of April 211 appears to encode for sequences involved in coen...

Li, X.; Voss, P.L.; Chen, J.; Sharping, J.E.; Kumar, P., 2005: Storage and long-distance distribution of telecommunications-band polarization entanglement generated in an optical fiber. We demonstrate storage of polarization-entangled photons for 125 micros, a record storage time to date, in a 25-km-long fiber spool, using a telecommunications-band fiber-based source of entanglement. With this source we also demonstrate distribut...

Pigati, P., 1961: Metasystox residues in tomato leaves and fruits. Tomato crops were sprayed with the systemic insecticide Metasystox "i" (25%) at the rate of 10 ml/10 1. Analyses were made by the method of Giannotti and Pigati to determine the residues in the leaves and fruits at intervals of 1, 7, 14...

Smith, B.D., 2004: A very public partnership: how REMSA is tuned in & improving EMS public perception, one injury-prevention program at a time. Jems 29(5): 56-8, 60, 62, 64, 66-9

Richards, D.B., 1974: Strength of wood beams with shallow curved notches. Beams of Liriodendron tulipifera with extremely straight grain and with notches of various depths and radii of curvature on the compression edge were tested to failure by third-point loading. The modulus of rupture (based on net section) was not s...

Chilingaryan, L.; Oganesyan, L.; Mkhitaryan, S., 1975: Model studies of water-management systems for optimization of their parameters. Hydrotechnical construction: (Transl 1976), 7 610-613

Verkhatskaya, A.A.; Zavelevitch, M.P.; Matsuka, G.C., 1994: 25 Oligoadenylate synthetase and effects of interferon on retrovirus-producing murine lymphoma cells. Antiviral Research 23(SUPPL 1): 66