| Autor: |
Lisa D. Wiley, Gordon E. Shkurhan, K. D. Coutts, Dana C. Reid, Donald C. McKenzie, Jennifer M. Robinson, Glen J. David |
| Rok vydání: |
2001 |
| Předmět: |
|
| Zdroj: |
Sports Medicine, Training and Rehabilitation. 10:29-37 |
| ISSN: |
1057-8315 |
| Popis: |
Objectives: Rowers who entrain breathing frequency to stroke rate do so in either a 1:1 or 2:1 pattern. The purpose of this study was to investigate the performance and physiological difference that occurs between the practice of these two patterns of breathing. Methods: Fifteen novice female rowers (age =19.7 ± 1.6 yr.; body mass = 70.9 ±6.3 kg; height = 174.4 ±4.4 cm) were randomly assigned to complete a 2000 meter rowing ergometer test alternatively using each breathing pattern one week apart. Expired gases and breathing frequencies were measured using a Medical Graphics CPX‐D metabolic system. Heart rate (fc) was recorded using direct lead ECG. Stroke rate was obtained from the Concept II Ergometer. Results: Repeated measures MANOVA determined that when the breathing frequency was 2 breaths per stroke (2:1 versus 1:1), the time to complete the test was significantly shorter (490 ± 24.8 vs. 514 ± 11.3 s, p ≤ 0.05) and power output was greater (203.4 ± 21.5 vs. 184.5 ± 20.4 W, p ≤ 0.05). Oxygen uptake d... |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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