PMID- 27250715
OWN - NLM
STAT- MEDLINE
DCOM- 20170109
LR  - 20181202
IS  - 1435-604X (Electronic)
IS  - 0268-8921 (Linking)
VI  - 31
IP  - 6
DP  - 2016 Aug
TI  - Low level laser therapy associated with a strength training program on muscle 
      performance in elderly women: a randomized double blind control study.
PG  - 1219-29
LID - 10.1007/s10103-016-1967-y [doi]
AB  - The aging process leads to a gradual loss of muscle mass and muscle performance, 
      leading to a higher functional dependence. Within this context, many studies have 
      demonstrated the benefits of a combination of physical exercise and low level 
      laser therapy (LLLT) as an intervention that enhances muscle performance in young 
      people and athletes. The aim of this study was to evaluate the effects of 
      combination of LLLT and strength training on muscle performance in elderly women. 
      For this, a hundred elderly women were screened, and 48 met all inclusion 
      criteria to participate in this double-blind placebo-controlled trial. Volunteers 
      were divided in three groups: control (CG = 15), strength training associated 
      with placebo LLLT (TG = 17), and strength training associated with active LLLT 
      (808 nm, 100 mW, 7 J) (TLG = 16). The strength training consisted of knee 
      flexion-extension performed with 80 % of 1-repetition maximum (1-RM) during 
      8 weeks. Several outcomes related to muscle performance were analyzed through the 
      6-min walk test (6-MWT), isokinetic dynamometry, surface electromyography (SEMG), 
      lactate concentration, and 1-RM. The results revealed that a higher work 
      (p = 0.0162), peak torque (p = 0.0309), and power (p = 0.0223) were observed in 
      TLG compared to CG. Furthermore, both trained groups increased the 1-RM load (TG 
      vs CG: p = 0.0067 and TLG vs CG: p < 0.0001) and decreased the lactate 
      concentration in the third minute after isokinetic protocol (CG vs TLG: 
      p = 0.0289 and CG vs TG: p = 0.0085). No difference in 6-MWT and in fatigue 
      levels were observed among the groups. The present findings suggested that LLLT 
      in combination with strength training was able to improve muscle performance in 
      elderly people.
FAU - Toma, Renata Luri
AU  - Toma RL
AD  - Department of Biosciences, Federal University of Sao Paulo, Campus Baixada 
      Santista, Av. Ana Costa, 95, 11060-001, Santos, SP, Brazil. renataluri@gmail.com.
FAU - Vassao, Patricia Gabrielli
AU  - Vassao PG
AD  - Department of Biosciences, Federal University of Sao Paulo, Campus Baixada 
      Santista, Av. Ana Costa, 95, 11060-001, Santos, SP, Brazil.
FAU - Assis, Livia
AU  - Assis L
AD  - Department of Biosciences, Federal University of Sao Paulo, Campus Baixada 
      Santista, Av. Ana Costa, 95, 11060-001, Santos, SP, Brazil.
FAU - Antunes, Hanna Karen Moreira
AU  - Antunes HK
AD  - Department of Biosciences, Federal University of Sao Paulo, Campus Baixada 
      Santista, Av. Ana Costa, 95, 11060-001, Santos, SP, Brazil.
FAU - Renno, Ana Claudia Muniz
AU  - Renno AC
AD  - Department of Biosciences, Federal University of Sao Paulo, Campus Baixada 
      Santista, Av. Ana Costa, 95, 11060-001, Santos, SP, Brazil.
LA  - eng
PT  - Journal Article
PT  - Randomized Controlled Trial
DEP - 20160601
PL  - England
TA  - Lasers Med Sci
JT  - Lasers in medical science
JID - 8611515
RN  - 33X04XA5AT (Lactic Acid)
SB  - IM
MH  - Aged
MH  - Double-Blind Method
MH  - Electromyography
MH  - Exercise/*physiology
MH  - Female
MH  - Humans
MH  - Lactic Acid/blood
MH  - Low-Level Light Therapy/*methods
MH  - Middle Aged
MH  - Muscle, Skeletal/physiology/*radiation effects
MH  - Resistance Training/*methods
MH  - Torque
OTO - NOTNLM
OT  - Elderly people
OT  - Isokinetic dynamometer
OT  - Low level laser therapy
OT  - SEMG
OT  - Sarcopenia
OT  - Strength training
EDAT- 2016/06/03 06:00
MHDA- 2017/01/10 06:00
CRDT- 2016/06/03 06:00
PHST- 2015/10/23 00:00 [received]
PHST- 2016/05/23 00:00 [accepted]
PHST- 2016/06/03 06:00 [entrez]
PHST- 2016/06/03 06:00 [pubmed]
PHST- 2017/01/10 06:00 [medline]
AID - 10.1007/s10103-016-1967-y [pii]
AID - 10.1007/s10103-016-1967-y [doi]
PST - ppublish
SO  - Lasers Med Sci. 2016 Aug;31(6):1219-29. doi: 10.1007/s10103-016-1967-y. Epub 2016 
      Jun 1.