Abstract：
:The aim of the study was to evaluate the heat stress of Finnish male soldiers (N = 20, age 22.0 ± 2.5 years, body mass 78.8 ± 11.5 kg, and height 180.2 ± 5.6 cm) during their 4-month deployment in a hot environment and to find out the effects on physical performance and body composition. The troops moved from 2.5° C (mean monthly temperature) in Finland to 31.9° C in Chad. During the deployment, temperatures varied between 13.5 and 57.0° C outdoors and in the vehicles and tents. During 1-day recording in the middle of the deployment, skin temperatures were 34-35° C during daytime and maximal core temperature remained mainly below 38.0° C. Body mass decreased (78.4 ± 11.5 kg vs. 75.6 ± 8.6, p = 0.007) during the deployment without changes in fat mass. The sit-up performance increased by 10.9% (46 ± 10 reps·min⁻¹ vs. 51 ± 7 reps·min⁻¹, p < 0.01), and the maximal force production of the leg extensor muscles increased (3,042 ± 614 N vs. 3,277 ± 706 N, p < 0.05) without change in the rate of force development. No changes were observed in the push-ups, repeated squats, maximal grip strength, and running distance during the 12-minute test. In conclusion, the soldiers were able to maintain or improve their physical performance during the deployment despite the heat stress. It is important to encourage soldiers to engage in physical training, especially during a thermally appropriate time of the day or in air-conditioned facilities. Monitoring of local heat stress is also recommended.
journal_name
J Strength Cond Resjournal_title
Journal of strength and conditioning researchauthors
Rintamäki H,Kyröläinen H,Santtila M,Mäntysaari M,Simonen R,Torpo H,Mäkinen T,Rissanen S,Lindholm Hdoi
10.1519/JSC.0b013e31825d817esubject
Has Abstractpub_date
2012-07-01 00:00:00pages
S45-52eissn
1064-8011issn
1533-4287journal_volume
26 Suppl 2pub_type
杂志文章abstract：:The back squat is a traditional resistance training exercise, whereas the resisted sled exercise is a relatively new resistance exercise. However, as there are no studies comparing muscle activation between the exercises, the objective of this study was to examine activity of leg and trunk muscles for both exercises. ...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000000697
更新日期：2014-12-01 00:00:00
abstract：:Till, K, Darrall-Jones, J, Weakley, JJ, Roe, GA, and Jones, BL. The influence of training age on the annual development of physical qualities within academy rugby league players. J Strength Cond Res 31(8): 2110-2118, 2017-Previous research in academy rugby league players has evaluated the development of physical quali...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000001546
更新日期：2017-08-01 00:00:00
abstract：:Martín-Hernández, J, Ruiz-Aguado, J, Herrero, AJ, Loenneke, JP, Aagaard, P, Cristi-Montero, C, Menéndez, H, and Marín, PJ. Adaptation of perceptual responses to low-load blood flow restriction training. J Strength Cond Res 31(3): 765-772, 2017-The purpose of this study was to determine the adaptive response of ratings...
journal_title：Journal of strength and conditioning research
pub_type： 临床试验,杂志文章
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更新日期：2017-03-01 00:00:00
abstract：:The purpose of this study was to analyze the level of creatine use along with the perceived benefits and barriers of creatine use among collegiate athletes who participate in throwing events within the sport of track and field. A total of 258 throwers from National Collegiate Athletic Association Division I institutio...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000000818
更新日期：2015-07-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/18205.1
更新日期：2006-08-01 00:00:00
abstract：:Fields, JB, Metoyer, CJ, Casey, JC, Esco, MR, Jagim, AR, and Jones, MT. Comparison of body composition variables across a large sample of National Collegiate Athletic Association women athletes from 6 competitive sports. J Strength Cond Res 32(9): 2452-2457, 2018-Body composition (BC) plays a critical role in sport pe...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000002234
更新日期：2018-09-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000002303
更新日期：2020-05-01 00:00:00
abstract：:The NFL-225 test is widely used to assess the strength level and evaluate the progress of college football players during resistance training. Despite the studies evaluating the validity of this test, there are no reports assessing its reliability. The purpose of this study was to determine the reliability and smalles...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000000411
更新日期：2014-05-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000001886
更新日期：2019-02-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000002407
更新日期：2019-11-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e31827647bd
更新日期：2013-07-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000000929
更新日期：2015-10-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000000881
更新日期：2015-08-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2020-12-09 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000000791
更新日期：2015-06-01 00:00:00
abstract：:Reliability, the consistency of a test or measurement, is frequently quantified in the movement sciences literature. A common metric is the intraclass correlation coefficient (ICC). In addition, the SEM, which can be calculated from the ICC, is also frequently reported in reliability studies. However, there are severa...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章,评审
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更新日期：2005-02-01 00:00:00
abstract：:Periodization is known to improve training adaptations but the most effective periodization approach for muscular strength development for a wide variety of populations is yet to be determined. This systematic review and meta-analysis examined all studies directly comparing linear and undulating periodized resistance ...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章,meta分析,评审
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更新日期：2015-04-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2015-10-01 00:00:00
abstract：:Increasing participation rates for women's lacrosse necessitate a clear understanding of fitness parameters for this athlete group. However, limited sport-specific information is available. We described the physiological profile of an NCAA Division I women's lacrosse team to provide current data for this specific athl...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e318185f07c
更新日期：2009-01-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e3181d0a55f
更新日期：2010-04-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/R-18225.1
更新日期：2006-11-01 00:00:00
abstract：:Numerous investigations have attested to the efficacy of the National Football League (NFL)-225 test to estimate one repetition maximum (1RM) bench press. However, no studies have assessed the efficacy of the test to track changes in strength across a training program. The purpose of this study was to determine the ac...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0000000000000829
更新日期：2015-11-01 00:00:00
abstract：:Comfort, P, Williams, R, Suchomel, TJ, and Lake, JP. A comparison of catch phase force-time characteristics during clean derivatives from the knee. J Strength Cond Res 31(7): 1911-1918, 2017-The aim of this study was to compare load-absorption force-time characteristics of the clean from the knee (CK), power clean fro...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2017-07-01 00:00:00
abstract：:The effect of consuming meals of different macronutrient content on substrate oxidation following resistance exercise was examined in 9 resistance-trained men (26.2 +/- 2.4 years). Subjects completed 3 resistance exercise bouts of 8 exercises and 1 warm-up set (50% of 10 repetition maximum [RM]), which were followed b...
journal_title：Journal of strength and conditioning research
pub_type： 临床试验,杂志文章,随机对照试验
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更新日期：2004-05-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/R-15624.1
更新日期：2006-02-01 00:00:00
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journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2015-12-01 00:00:00
abstract：:Liu, J, Lee, I, Feng, H-Z, Galen, SS, Hüttemann, PP, Perkins, GA, Jin, J-P, Hüttemann, M, and Malek, MH. Aerobic exercise preconception and during pregnancy enhances oxidative capacity in the hindlimb muscles of mice offspring. J Strength Cond Res 32(5): 1391-1403, 2018-Little is known about the effect of maternal exe...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2018-05-01 00:00:00
abstract：:Recently, a fitness competition called the Pump and Run (PR) has been popularized. Composed of 2 events, a 5-km road race time (RT) in seconds and a maximal-repetition bench press (BPR) with resistance based on a percentage of body mass (M), the final score (RTadj) equals RT - 30(BPR). From published findings, the aut...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/JSC.0b013e318161912f
更新日期：2008-03-01 00:00:00
abstract：:The purpose of this study was to analyze multiple effects of an extended interval training (EIT) protocol on countermovement jump (CMJ) and handgrip strength in endurance athletes and to determine the relationship between fatigue and potentiation. Thirty experienced sub-elite male long-distance runners (age = 28.26 ± ...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
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更新日期：2015-01-01 00:00:00
abstract：:The relationships between local muscular endurance and kinematic changes during a run to exhaustion at vVo2max. J Strength Cond. Res. 18(4):000-000. 2004.-A recent study suggested that runners who maintain a stable running style are able to run for longer at vVo2max velocity (vVo2max). This may be because of the capac...
journal_title：Journal of strength and conditioning research
pub_type： 杂志文章
doi：10.1519/r-13503.1
更新日期：2004-11-01 00:00:00
