38552
document
Effects of static stretching on repeated sprint and change of direction performance . PURPOSE To examine the effects of static stretching during the recovery periods of field-based team sports on subsequent repeated sprint ability ( RSA ) and change of direction speed ( CODS ) performance . METHODS On four separate occasions , 12 male team-sport players performed a standardized warm-up , followed by a test of either RSA or CODS ( on two occasions each ) in a counterbalanced design . Both tests involved three sets of six maximal sprint repetitions , with a 4-min recovery between sets . During the break between sets , the participants either rested ( control [ CON ] ) or completed a static stretching protocol ( static stretch [ SS ] ) . The RSA test involved straight-line sprints , whereas the CODS test required a change of direction ( 100 degrees ) every 4 m ( total of four ) . Mean , total ( sum of six sprints ) , first , and best sprint times ( MST , TST , FST , and BST , respectively ) were recorded for each set . RESULTS There was a consistent tendency for RSA times to be slower after the static stretching intervention , which was supported by statistical significance for three performance variables ( MST 0-5 m set 2 , MST 0-20 m set 2 , and TST set 2 ; P < 0.05 ) . This tendency was also supported by moderate effect sizes and qualitative indications of " likely " harmful or detrimental effects associated with RSA-SS . Further , sprint times again tended to be slower in the CODS-SS trial compared with the CODS-CON across all sprint variables , with a significantly slower ( P < 0.05 ) BST recorded for set 3 after static stretching . CONCLUSION These results suggest that an acute bout ( 4 min ) of static stretching of the lower limbs during recovery periods between efforts may compromise RSA performance but has less effect on CODS performance .
38553
Intervention_Physical
static stretching
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Intervention_Physical
static stretching
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Intervention_Physical
repeated sprint ability ( RSA )
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Intervention_Physical
change of direction speed ( CODS )
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Intervention_Physical
RSA
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Intervention_Physical
CODS
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Intervention_Physical
six maximal sprint repetitions , with a 4-min recovery between sets .
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Intervention_Control
rested ( control [ CON ] )
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Intervention_Physical
static stretching protocol ( static stretch [ SS ] )
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Intervention_Physical
RSA
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Intervention_Physical
straight-line sprints
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Intervention_Physical
CODS
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Intervention_Physical
static stretching intervention
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Intervention_Physical
RSA-SS
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Intervention_Physical
CODS-SS
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Intervention_Physical
CODS-CON
38569
Intervention_Physical
static stretching
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Outcome_Physical
repeated sprint
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Outcome_Mental
and change of direction performance
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Outcome_Physical
repeated sprint ability ( RSA )
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Outcome_Mental
change of direction speed ( CODS ) performance
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Outcome_Physical
RSA
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Outcome_Mental
best sprint times
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Outcome_Physical
RSA times
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Outcome_Mental
sprint times
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Outcome_Physical
RSA performance
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Outcome_Mental
CODS performance
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Participant_Sample-size
12
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Participant_Sex
male