Abstract:
:Graham, PL, Zoeller, RF, Jacobs, PL, and Whitehurst, MA. Effect of cadence on time trial performance in recreational female cyclists. J Strength Cond Res 32(6): 1739-1744, 2018-The impact of pedaling cadence on cycling performance remains unresolved especially in female cyclists. The purpose of this study was to determine the effect of cadence on time trial (TT) performance in recreational female cyclists. Ten recreational female cyclists volunteered to participate in this study. Subjects performed 3 exercise sessions: 1 to assess peak oxygen uptake (V[Combining Dot Above]O2peak) and 2 TTs. Cadence was randomly ordered and fixed for each TT (60 or 100 rpm), whereas power output (PO) was freely adjusted by the participant, as tolerated. Time trial time, heart rate (HR), blood lactate, PO, V[Combining Dot Above]O2, and ratings of perceived exertion were measured throughout the TTs. The major finding of this study was the significantly faster (p = 0.001) TT time during the 60-rpm condition (34:23 ± 4:21) vs. the 100-rpm condition (37:34 ± 5:53). Also the 60-rpm TT resulted in significant differences for HR (155.9 ± 3.97 vs. 161.2 ± 5.20 b·min, p = 0.04), gross efficiency, (21.1 ± 0.37 vs. 17.7 ± 0.85%, p < 0.001), and PO (147 ± 7.06 vs. 129 ± 10.62 W, p = 0.003). Thus, a slower cycling cadence was associated with greater mechanical efficiency and PO, resulting in significantly better performance in a TT. These results suggest that recreational female cyclists may benefit from adopting a low cadence during an 8-km TT.
journal_name
J Strength Cond Resjournal_title
Journal of strength and conditioning researchauthors
Graham PL,Zoeller RF,Jacobs PL,Whitehurst MAdoi
10.1519/JSC.0000000000002044subject
Has Abstractpub_date
2018-06-01 00:00:00pages
1739-1744issue
6eissn
1064-8011issn
1533-4287pii
00124278-201806000-00031journal_volume
32pub_type
杂志文章abstract::Turner, AN, Kilduff, LP, Marshall, GJG, Phillips, J, Noto, A, Buttigieg, C, Gondek, M, Hills, FA, and Dimitriou, L. Competition intensity and fatigue in elite fencing. J Strength Cond Res 31(11): 3128-3136, 2017-As yet, no studies have characterized fencing competitions. Therefore, in elite male foilists and across 2 ...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000001758
更新日期:2017-11-01 00:00:00
abstract::Adequate abdominal strength prevents work- and sports-related injuries and stabilizes the spine for athletic activities. The double-leg-lowering maneuver (DLLM) is a popular test to assess abdominal strength because of its simplicity; however, its validity and reliability have not been studied thoroughly. To determine...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/R-16664.1
更新日期:2005-11-01 00:00:00
abstract::Despite the ubiquitous use of the flexed arm hang (FAH) as a field test of muscular fitness, evidence for the construct validity of it is lacking. The strongest validity coefficients (r) to date are 0.71 and 0.72 found by correlating modified versions of the FAH (i.e., 90 and 180° of elbow extension, respectively) wit...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000000601
更新日期:2014-12-01 00:00:00
abstract::Implementing objective methods to assess physical performance has become an invaluable component of athlete or player development, monitoring, and talent identification in distinct sports. Many sports depend heavily upon muscular strength, muscle power output, and sprint performance, especially at competition level. T...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000000390
更新日期:2014-08-01 00:00:00
abstract::Abnormal movement patterns have been identified as important prospective risk factors for lower extremity injury, including anterior cruciate ligament injury. Specifically, poor neuromuscular control during the early landing phase has been associated with increased injury risk. Although it is commonly assumed that hig...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3182a1fdcd
更新日期:2014-04-01 00:00:00
abstract::The aim of this study was to examine the concurrent validity of 2 portable systems for vertical jump (VJ) assessment under field conditions. The VJ flight times assessed using an optical mat (Optojump) and an accelerometer-based (Myotest) system were compared with that of a force platform. The flight times recorded du...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e31825dbcc5
更新日期:2013-03-01 00:00:00
abstract::Weakley, J, Chalkley, D, Johnston, R, García-Ramos, A, Townshend, A, Dorrell, H, Pearson, M, Morrison, M, and Cole, M. Criterion validity, and interunit and between-day reliability of the FLEX for measuring barbell velocity during commonly used resistance training exercises. J Strength Cond Res 34(6): 1519-1524, 2020-...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000003592
更新日期:2020-06-01 00:00:00
abstract::Fourteen healthy men participated in a study designed to examine the effects of weight-belt use on trunk- and leg-muscle myoelectric activity (EMG) and joint kinematics during the squat exercise. Each subject performed the parallel back squat exercise at a self-selected speed according to his own technique with 90% of...
journal_title:Journal of strength and conditioning research
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2001-05-01 00:00:00
abstract::Del Coso, J, Salinero, JJ, Lara, B, Gallo-Salazar, C, Areces, F, Herrero, D, and Puente, C. Polygenic profile and exercise-induced muscle damage by a competitive half-ironman. J Strength Cond Res 34(5): 1400-1408, 2020-To date, it is still unknown why some individuals develop higher levels of muscle damage than other ...
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::Previous research has shown that static stretching (SS) can diminish the peak force output of stretch-shortening cycle actions while performing a dynamic warm-up (DW) protocol has been shown to enhance performance in similar activities. The purpose of this study was to establish whether the deleterious effects of SS w...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e31815ef202
更新日期:2008-01-01 00:00:00
abstract::Weakley, JJS, Till, K, Read, DB, Phibbs, PJ, Roe, G, Darrall-Jones, J, and Jones, BL. The effects of superset configuration on kinetic, kinematic, and perceived exertion in the barbell bench press. J Strength Cond Res 34(1): 65-72, 2020-Training that is efficient and effective is of great importance to an athlete. One...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,随机对照试验
doi:10.1519/JSC.0000000000002179
更新日期:2020-01-01 00:00:00
abstract::It is commonly accepted that vertical jump performance is a good indicator of maximal joint power. Some studies, however, have indicated that knee joint power output in the vertical jump is limited due to forward trunk inclination early in the push-off. The aim of this experimental study was to investigate the effect ...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181636c6c
更新日期:2008-05-01 00:00:00
abstract::The purpose of this study was to develop a novel, anaerobic efficiency test in swimming. The concept of this test was build upon the classic Wingate anaerobic test, with the difference that the dependent variables are extracted from an instantaneous speed curve. Twelve highly trained male swimmers, 19.3 (±3.3) years o...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e31825489b2
更新日期:2013-02-01 00:00:00
abstract::The restorative capacities of a high carbohydrate-protein (CHO-PRO) beverage containing electrolytes and a traditional 6% carbohydrate-electrolyte sports beverage (SB) were assessed after glycogen-depleting exercise. Postexercise ingestion of the CHO-PRO beverage, in comparison with the SB, resulted in a 55% greater t...
journal_title:Journal of strength and conditioning research
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1519/1533-4287(2003)017<0012:eorbog>2.0.co;2
更新日期:2003-02-01 00:00:00
abstract::Liao, L-R, and Pang, MYC. Effect of whole-body vibration on neuromuscular activation of leg muscles during dynamic exercises in individuals with stroke. J Strength Cond Res 31(7): 1954-1962, 2017-This study examined the leg muscle activity during exposure to different whole-body vibration (WBV) intensities while perfo...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000001761
更新日期:2017-07-01 00:00:00
abstract::Bergstrom, HC, Housh, TJ, Cochrane-Snyman, KC, Jenkins, NDM, Byrd, MT, Switalla, JR, Schmidt, RJ, and Johnson, GO. A model for identifying intensity zones above critical velocity. J Strength Cond Res 31(12): 3260-3265, 2017-The purpose of this study was to describe the V[Combining Dot Above]O2 responses relative to V[...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000001769
更新日期:2017-12-01 00:00:00
abstract::Morris, RO, Jones, B, Myers, T, Lake, J, Emmonds, S, Clarke, ND, Singleton, D, Ellis, M, and Till, K. Isometric midthigh pull characteristics in elite youth male soccer players: Comparisons by age and maturity offset. J Strength Cond Res 34(10): 2947-2955, 2020-The purpose of this study was to (a) provide comparative ...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002673
更新日期:2020-10-01 00:00:00
abstract::Whole-body vibration is an emerging strategy used by athletes and exercising individuals to potentially accelerate muscle recovery. The vibration elicits involuntary muscle stretch reflex contractions leading to increased motor unit recruitment and synchronization of synergist muscles, which may lead to greater traini...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,评审
doi:10.1519/JSC.0b013e318242a4d3
更新日期:2012-10-01 00:00:00
abstract::The purpose of this study was to investigate the chronic effect of a contrast training program designed to elicit an acute short term enhancement (STE) effect during training. A matched pairs training study design was implemented with a contrast (STE affected) and complex (control) training group completing a seven we...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000000874
更新日期:2015-02-03 00:00:00
abstract:ABSTRACT:Bagley, L, Al-Shanti, N, Bradburn, S, Baig, O, Slevin, M, and McPhee, JS. Sex comparison of knee extensor size, strength, and fatigue adaptation to sprint interval training. J Strength Cond Res 35(1): 64-71, 2021-Regular sprint interval training (SIT) improves whole-body aerobic capacity and muscle oxidative p...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002496
更新日期:2021-01-01 00:00:00
abstract::The purposes of this study were firstly to investigate whether learning affects were present in the administration of 4 hop tests and the Agility T-test and secondly to assess the between-session reliability of these tests. Twenty-two recreational athletes (11 women: age 22.3 ± 3.7 years, height 167.7 ± 6.2 cm, weight...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181d83335
更新日期:2011-05-01 00:00:00
abstract::The objective of this investigation was to determine whether short-term heavy resistance training (RT) in healthy older men could eliminate deficits in muscle mass and strength (ST) compared with healthy younger men. Seventeen older men (60-71 yr) performed supervised RT for 22 weeks. Before and after RT, measurements...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181bf43c8
更新日期:2011-02-01 00:00:00
abstract::The current case study attempted to document the contemporary demands of elite rugby union. Players (n = 2) were tracked continuously during a competitive team selection game using Global Positioning System (GPS) software. Data revealed that players covered on average 6,953 m during play (83 minutes). Of this distance...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181a3928b
更新日期:2009-07-01 00:00:00
abstract::This study investigated the relationship between punching acceleration and selected strength and power variables in 19 professional karate athletes from the Brazilian National Team (9 men and 10 women; age, 23 ± 3 years; height, 1.71 ± 0.09 m; and body mass [BM], 67.34 ± 13.44 kg). Punching acceleration was assessed u...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章,随机对照试验
doi:10.1519/JSC.0000000000000329
更新日期:2014-07-01 00:00:00
abstract::Flatt, AA, Esco, MR, Allen, JR, Robinson, JB, Earley, RL, Fedewa, MV, Bragg, A, Keith, CM, and Wingo, JE. Heart rate variability and training load among National Collegiate Athletic Association Division 1 college football players throughout spring camp. J Strength Cond Res 32(11): 3127-3134, 2018-The purpose of this s...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000002241
更新日期:2018-11-01 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
doi:10.1519/JSC.0000000000002416
更新日期:2018-05-01 00:00:00
abstract::This study compared serum total testosterone (TT) and free testosterone (FT) responses of young (20-26 years, n = 8), middle-aged (38-53 years, n = 7), and older (59-72 years, n = 9) men to resistance exercise. We also examined the relationships between testosterone (T) levels and strength, bone mineral density (BMD),...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/R-18885.1
更新日期:2006-11-01 00:00:00
abstract::Fernandez-Fernandez, J, Loturco, I, Pereira, LA, Del Coso, J, Areces, F, Gallo-Salazar, C, and Sanz-Rivas, D. Change of direction performance in young tennis players: a comparative study between sexes and age-categories. J Strength Cond Res XX(X): 000-000, 2019-The aim of this study was to examine the differences in l...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0000000000003484
更新日期:2020-01-09 00:00:00
abstract::Muscle dysmorphia is a form of body dysmorphic disorder in which individuals have a pathological preoccupation with their muscularity and, more specifically, an extreme fear that their bodies are too small. Relatively few empirical studies have been completed on muscle dysmorphia, and even fewer studies on the relatio...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e3181b3dc2f
更新日期:2009-09-01 00:00:00
abstract::Recent studies have suggested that subtetanic neuromuscular electrical stimulation (NMES) protocols applied to the quadriceps and hamstrings may have potential as an alternative aerobic exercise modality. However, its tolerability and effectiveness in the physically active population has been questioned. The primary p...
journal_title:Journal of strength and conditioning research
pub_type: 杂志文章
doi:10.1519/JSC.0b013e318252f5e5
更新日期:2013-01-01 00:00:00