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Juerg Feldmann

Fortiori Design LLC
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Posts: 1,530
 #1 
Here a  fun study.
  The interesting part is  to understand the VO2  max  part  and why they   thought it  may  change   when doing this type of  workouts.
  What would have been interesting is to see, what happened   with tHb  during the 2  types  of workouts  and therefor in the  ability to   move  blood.
 Here to enjoy
 

KEITA UCHIYAMA, RPT, MS1,2), HIROICHI MIAKI, RPT, PhD3), SHIGERU TERADA, RPT1,2),

MASAHIRO HOSO, MD, PhD3)

1)Department of Rehabilitation, Kanazawa Red Cross Hospital: 2–251 Minma, Kanazawa, Ishikawa 921-

8161, Japan. TEL: +81 76-242-8131, FAX: +81 76-243-7552, E-mail: reha@kanazawa-rc-hosp.jp

2)Doctoral Course of Rehabilitation Science, Division of Health Sciences, Graduate School of Medical

Science, Kanazawa University

3)Division of Health Sciences, Graduate School of Medical Science, Kanazawa University

Abstract. [Purpose] The purpose of this study was to compare the effects of muscle strength training and muscle endurance training on muscle deoxygenation level and endurance performance. [Subjects and Methods] Nineteen healthy young men were randomly assigned to a muscle strength training (STR: n = 6) group, muscle endurance training (END: n = 6) group, or a control (CON: n = 7) group. The training intensity for STR was 60°/sec × 10 repetitions × 5 sets/day and that for END was 240°/sec × 50% fatigue repetitions × 2 sets/day, 3 days/week, for 6 weeks. All subjects performed cardiopulmonary exercise testing (CPX) to measure maximum oxygen uptake, exercise time and muscle deoxygenation level of vastus lateralis, and underwent muscle strength and muscle endurance measurements pre- and post-training. [Results] In the STR group, muscle strength tended to increase, while muscle endurance significantly increased in the END group. Muscle deoxygenation level was significantly increased in both training groups. Maximum oxygen uptake did not change; however, in the END group alone, exercise time was significantly prolonged. [Conclusion] These results suggest that muscle endurance training is more effective at increasing endurance performance than muscle strength training.

Key words: Muscle endurance training, Muscle deoxygenation level, Exercise time

(This article was submitted Oct. 15, 2010, and was accepted Nov. 5, 2010)

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