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- W1971659319 abstract "Purpose During competition, swimmers are often faced with multiple races in a single day. It has become common practice during meets for swimmers to use active recovery between events in an attempt to facilitate improved performance. Thus, we examined the effects of active versus passive recovery on blood lactate disappearance and subsequent maximal performance in competitive swimmers. Methods Fourteen competitive swimmers completed a lactate profiling session during which the velocity at the lactate threshold (VLT), the velocity at 50% of the LT (VLT.5), and the velocity at 150% of the LT (VLT1.5) were determined. This involved 7 graded incremental 200 meter (m) freestyle swims with the first swim target time being 30 seconds slower than the individuals best 200 m time. Subsequent bouts had swim times that were 5 seconds faster than the previous swim target time with 5 minutes allotted for each stage. Blood was sampled from the ear or finger and immediately analyzed for lactate with an Accutrend portable lactate analyzer. Subjects also completed four randomly assigned experimental sessions that consisted of a 200 m maximal effort swim followed by 10 minutes of recovery (passive, VLT.5, VLT, VLT1.5) and a subsequent 200 m maximal effort swim. Swimmers swam their competitive stroke during the 200 m maximal effort swims and recovered using freestyle. Results All the active recovery sessions resulted in greater lactate disappearance compared to passive recovery (p<0.05) with the greatest lactate disappearance associated with recovery at VLT (p<0.05) (blood lactate concentrations prior to the second time trial were 7.1 ± 0.7, 4.0 ± 0.4, 3.1 ± 0.3, and 3.8 ± 0.5 mM for passive, VLT.5, VLT, and VLT1.5 respectively). Active recovery at VLT and VLT1.5 resulted in faster performance on time trial 2 compared to passive recovery (p<0.05), however only active recovery at VLT resulted in improved performance on time trial 2 relative to time trial 1 (T2 – T1 = 1.32 ± 0.64, 1.01 ± 0.53, −1.67 ± 0.26, and −0.07 ± 0.51 seconds for passive, VLT.5, VLT, and VLT1.5 recovery, respectively, p<0.05). Conclusion Active recovery at the velocity associated with the lactate threshold resulted in the greatest lactate disappearance and in improved subsequent performance in all 14 swimmers. These data suggest that coaches should consider incorporating recovery at VLT during competition and perhaps during hard training sessions." @default.
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- W1971659319 date "2005-05-01" @default.
- W1971659319 modified "2023-09-26" @default.
- W1971659319 title "Effects Of Exercise Recovery Intensity On Blood Lactate Disappearance And Subsequent Swimming Performance" @default.
- W1971659319 doi "https://doi.org/10.1097/00005768-200505001-00446" @default.
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