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The effects of different intensities and durations of the general warm-up on leg press 1RM . The precision of maximum strength assessments ( 1 repetition maximum ; 1RM ) is important to evaluate the functional capacity and to prescribe and monitor the training load . Several factors can affect the precision of 1RM tests , including the warm-up procedure . General and specific warm-up routines are recommended to enhance performance . The effects of a specific warm-up have already been acknowledged in improving performance . However , the effects of a general warm-up ( GWU ) are unclear but seem to depend on its ability to increase muscle temperature while avoiding fatigue . Furthermore , temperature elevation is dependent on both the duration and the intensity of the activity , which may eventually affect 1RM performance . The objective of this study was to investigate the effect of different intensities and durations of GWU on 1RM performance . Sixteen strength-trained men were tested for 1RM leg press after 4 GWU conditions after specific warm-up : short duration and low intensity ( SDLI ; i.e. , 5 minutes at 40 % V [ Combining Dot Above ] O2max ) , long duration and low intensity ( LDLI ; i.e. , 15 minutes at 40 % V [ Combining Dot Above ] O2max ) , short duration and moderate intensity ( SDMI ; i.e. , 5 minutes at 70 % V [ Combining Dot Above ] O2max ) , long duration and moderate intensity ( LDMI ; i.e. , 15 minutes at 70 % V [ Combining Dot Above ] O2max ) , and the control ( CTRL ) no-GWU condition . Leg press 1RM values were higher ( on average 3 % ) when subjects performed LDLI ( 367.8 ± 70.1 kg ; p = 0.01 ) , compared with the other 4 conditions . After the LDMI condition , 1RM values were lower ( on average -4 % ) than in the other 4 conditions ( 345.6 ± 70.5 kg ; p = 0.01 ) . There were no differences between SDMI , SDLI , and CTRL ( 359.4 ± 69.2 kg , 359.1 ± 69.3 kg , and 359.4 ± 70.4 kg , respectively ; p = 0.99 ) . According to our results , long-duration low-intensity general warm-up seems be appropriately to improve 1RM performance in strength-trained individuals .
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Intervention_Physical
general warm-up on leg press 1RM
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Intervention_Physical
general warm-up ( GWU )
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Outcome_Other
effects
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Outcome_Other
on leg press 1RM .
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Outcome_Other
effect
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Outcome_Other
1RM leg press
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Outcome_Other
Leg press 1RM values
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Participant_Sample-size
Sixteen
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Participant_Condition
strength-trained
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Participant_Sex
men