Abstract：
:Twelve males completed three incremental, discontinuous treadmill tests in the heat [31.9(1.0) °C, 61.9(8.9)%] to determine speed at two fixed blood lactate concentrations (2 and 3.5 mmol/L), running economy (RE), and maximum oxygen uptake ( V ˙ O 2 m a x ). Trials involved 20 min of either internal cooling (ICE, 7.5 g/kg ice slurry ingestion) or mixed-methods external cooling (EXT, cold towels, forearm immersion, ice vest, and cooling shorts), alongside no intervention (CON). Following precooling, participants ran 0.3 km/h faster at 2 mmol/L and 0.2 km/h faster at 3.5 mmol/L (P = 0.04, partial η(2) = 0.27). Statistical differences were observed vs CON for ICE (P = 0.03, d = 0.15), but not EXT (P = 0.12, d = 0.15). There was no effect of cooling on RE (P = 0.81, partial η(2) = 0.02), nor on V ˙ O 2 m a x (P = 0.69, partial η(2) = 0.04). An effect for cooling on physiological strain index was observed (P < 0.01, partial η(2) = 0.41), with differences vs CON for EXT (P = 0.02, d = 0.36), but not ICE (P = 0.06, d = 0.36). Precooling reduced thermal sensation (P < 0.01, partial η(2) = 0.66) in both cooling groups (P < 0.01). Results indicate ICE and EXT provide similar physiological responses for exercise up to 30 min duration in the heat. Differing thermoregulatory responses are suggestive of specific event characteristics determining the choice of cooling. Precooling appears to reduce blood lactate accumulation and reduce thermoregulatory and perceptual strain during incremental exercise.
journal_name
Scand J Med Sci Sportsjournal_title
Scandinavian journal of medicine & science in sportsauthors
James CA,Richardson AJ,Watt PW,Gibson OR,Maxwell NSdoi
10.1111/sms.12376subject
Has Abstractpub_date
2015-06-01 00:00:00pages
190-9eissn
0905-7188issn
1600-0838journal_volume
25 Suppl 1pub_type
杂志文章,随机对照试验abstract：:Lower energy cost of running (Cr) has been reported when wearing minimal (MS) vs traditional shoes (TS) on level terrain, but the effect of slope on this difference is unknown. The aim of this study was to compare Cr, physiological, and kinematic variables from running in MS and TS on different slope conditions. Fourt...
journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章,随机对照试验
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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更新日期：2017-03-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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更新日期：2000-06-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章,评审
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更新日期：1996-08-01 00:00:00
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
pub_type： 杂志文章,随机对照试验
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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journal_title：Scandinavian journal of medicine & science in sports
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