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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Phototherapy during treadmill training improves quadriceps performance in postmenopausal women

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Author(s):
Paolillo, F. R. [1] ; Corazza, A. V. [2] ; Paolillo, A. R. [3] ; Borghi-Silva, A. [4] ; Arena, R. [5] ; Kurachi, C. [1] ; Bagnato, V. S. [1]
Total Authors: 7
Affiliation:
[1] Univ Sao Paulo, Opt Grp, Phys Inst Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Estadual Campinas, Dept Morphol, Fac Dent Piracicaba, Campinas, SP - Brazil
[3] Univ Sao Paulo, Bioengineer Program, BR-13560970 Sao Carlos, SP - Brazil
[4] Univ Fed Sao Carlos, Cardiopulm Physiotherapy Lab, Dept Phys Therapy, BR-13560 Sao Carlos, SP - Brazil
[5] Univ Illinois, Dept Phys Therapy, Coll Appl Hlth Sci, Chicago, IL - USA
Total Affiliations: 5
Document type: Journal article
Source: CLIMACTERIC; v. 17, n. 3, p. 285-293, JUN 2014.
Web of Science Citations: 6
Abstract

Objective To evaluate the effects of infrared-light-emitting diode (LED) during treadmill training on functional performance. Methods Thirty postmenopausal women aged 50-60 years were randomly assigned to one of three groups and successfully completed the full study. The three groups were: (1) the LED group, which performed treadmill training associated with phototherapy (n = 10); (2) the exercise group, which carried out treadmill training only (n = 10); and (3) the sedentary group, which neither performed physical training nor underwent phototherapy (n = 10). Training was performed over a period of 6 months, twice a week for 45 min per session at 85-90% of maximal heart rate, which was obtained during progressive exercise testing. The irradiation parameters were 100 mW, 39 mW/cm(2) and 108 J/cm(2) for 45 min. Quadriceps performance was measured during isokinetic exercise testing at 60 degrees/s and 300 degrees/s. Results Peak torque did not differ amongst the groups. However, the results showed significantly higher values of power and total work for the LED group (Delta= 21 +/- 6 W and Delta = 634 +/- 156 J, p < 0.05) when compared to both the exercise group (Delta = 13 +/- 10 W and Delta = 410 +/- 270 J) and the sedentary group (Delta = 10 +/- 9 W and Delta = 357 +/- 327 J). Fatigue was also significantly lower in the LED group (Delta = -7 +/- 4%, p < 0.05) compared to both the exercise group (Delta = 3 +/- 8%) and the sedentary group (Delta = -2 +/- 6%). Conclusions Infrared-LED during treadmill training may improve quadriceps power and reduce peripheral fatigue in postmenopausal women. (AU)

FAPESP's process: 98/14270-8 - Center for Optical and Photonics Science
Grantee:Vanderlei Salvador Bagnato
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 09/01842-0 - Analysis of central and peripheral muscle metabolism and adjustments on dynamic versus resistance exercise in coronary arterial disease patients: effects of resistance physical training program based on anaerobic threshold by different methodologies
Grantee:Audrey Borghi e Silva
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 08/57858-9 - National Institute for Optics and Photonics
Grantee:Vanderlei Salvador Bagnato
Support type: Research Projects - Thematic Grants