PMID- 28742609
OWN - NLM
STAT- MEDLINE
DCOM- 20180109
LR  - 20180109
IS  - 1536-3724 (Electronic)
IS  - 1050-642X (Linking)
VI  - 28
IP  - 1
DP  - 2018 Jan
TI  - The Efficacy of Dynamic Contract-Relax Stretching on Delayed-Onset Muscle 
      Soreness Among Healthy Individuals: A Randomized Clinical Trial.
PG  - 28-36
LID - 10.1097/JSM.0000000000000442 [doi]
AB  - OBJECTIVE: To evaluate the efficacy of dynamic contract-relax stretching on 
      delayed-onset muscle soreness (DOMS) in the calf muscle of healthy individuals. 
      DESIGN: Randomized clinical trial. SETTING: Research laboratory. PARTICIPANTS: 
      Three groups of 16 healthy participants (n = 48) were recruited by convenience 
      sampling. INTERVENTIONS: Three sets of resisted bilateral heel-raising exercises 
      until exhaustion were conducted to initiate DOMS. Participants were randomly 
      allocated into control group without any interventions, dynamic contract-relax 
      stretching (DS), or static stretching (SS) groups. Dynamic contract-relax 
      stretching and SS groups performed DS and SS, respectively, on the dominant leg 
      twice a day for 5 consecutive days (before time points of outcome measurements at 
      24, 48, 72, 96, and 120 hours postexercise, respectively). MAIN OUTCOME MEASURES: 
      Muscle soreness, lower leg girth, pressure pain threshold (PPT), range of motion 
      (ROM), and muscle strength were measured before exercise, immediately after, and 
      at 24, 48, 72, 96, and 120 hours postexercise. RESULTS: There was a significant 
      effect of time in all outcome measures including muscle soreness, lower leg 
      girth, PPT, ROM, and muscle strength; however, there were no significant group 
      differences or group by time interactions. CONCLUSIONS: The effect of DS on 
      relieving DOMS in the calf muscle is insignificant in this study. Further 
      evidence is needed to prove the efficacy of DS on DOMS. CLINICAL RELEVANCE: 
      Stretching is commonly recommended before and after exercise; however, this study 
      showed no significant impact of DS or SS in treating DOMS.
FAU - Xie, Yanfei
AU  - Xie Y
AD  - Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong 
      Kong SAR, PRC China.
FAU - Feng, Beibei
AU  - Feng B
AD  - Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun 
      Yat-sen University, Guangzhou, China.
FAU - Chen, Kedi
AU  - Chen K
AD  - Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun 
      Yat-sen University, Guangzhou, China.
FAU - Andersen, Lars L
AU  - Andersen LL
AD  - National Research Centre for the Working Environment, Copenhagen, Denmark.
AD  - Physical Activity and Human Performance Group, SMI, Department of Health Science 
      and Technology, Aalborg University, Aalborg, Denmark.
FAU - Page, Phil
AU  - Page P
AD  - Performance Health, Baton Rouge, Louisiana.
FAU - Wang, Yuling
AU  - Wang Y
AD  - Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun 
      Yat-sen University, Guangzhou, China.
LA  - eng
PT  - Journal Article
PT  - Randomized Controlled Trial
PL  - United States
TA  - Clin J Sport Med
JT  - Clinical journal of sport medicine : official journal of the Canadian Academy of 
      Sport Medicine
JID - 9103300
SB  - IM
MH  - Female
MH  - Humans
MH  - Male
MH  - Muscle Strength
MH  - Muscle Stretching Exercises/*methods
MH  - Muscle, Skeletal/*physiopathology
MH  - Myalgia/*therapy
MH  - Pain Measurement
MH  - Range of Motion, Articular
MH  - Young Adult
EDAT- 2017/07/26 06:00
MHDA- 2018/01/10 06:00
CRDT- 2017/07/26 06:00
PHST- 2017/07/26 06:00 [pubmed]
PHST- 2018/01/10 06:00 [medline]
PHST- 2017/07/26 06:00 [entrez]
AID - 10.1097/JSM.0000000000000442 [doi]
PST - ppublish
SO  - Clin J Sport Med. 2018 Jan;28(1):28-36. doi: 10.1097/JSM.0000000000000442.