Abstract:
:The use of flywheel devices has increased in popularity within resistance training programs. However, little is known about modifiable variables which may affect power output responses, as the rope length and the height level used in a conical pulley device. The aim of this study was to assess the influence of using three different rope lengths (1.5, 2.5 and 3.5 meters) and four different height levels (L1, L2, L3 and L4) on concentric peak power (PPconc), eccentric peak power (PPecc) and eccentric overload (eccentric/concentric PP ratio; EO) during conical pulley exercises (i.e. seated and stand-up row). A total of 29 recreationally trained subjects (25.3±7.1 years; 1.74±0.06 m; 72.5±8.3 kg) took part in the study. Testing sessions consisted of 1 set of 10 repetitions under each condition; experiment 1: seated row exercise using the three different rope lengths; experiment 2: stand-up row exercise using four different height levels of the conical pulley. Results from experiment 1 did not show differences between rope lengths, although a trend for greater PPecc (ES=0.36-0.38) and EO (ES=0.40-0.41) was found when using longer rope lengths (2.5 and 3.5). Experiment 2 showed significant increases in both PPconc and PPecc as the height level used was closer to the cone base (L4). In contrast, EO values were significantly greater when using upper height levels (L1). These results suggest that the height level used during conical pulley exercises highly influences power output responses. Therefore, this variable should be carefully managed depending on the training goal (e.g. power vs hypertrophy).
journal_name
J Hum Kinetjournal_title
Journal of human kineticsauthors
Sabido R,Hernández-Davó JL,García-Valverde A,Marco P,Asencio Pdoi
10.2478/hukin-2020-0018subject
Has Abstractpub_date
2020-08-31 00:00:00pages
109-118eissn
1640-5544issn
1899-7562pii
hukin-2020-0018journal_volume
74pub_type
杂志文章abstract::The objectives of this study were to determine the results of the analysis of single and double outdoor badminton men's matches and to determine the relationship between technical and tactical aspects in a study organized by the BWF (Badminton Word Federation), on a sand surface. Twenty men's singles matches were reco...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/hukin-2019-0121
更新日期:2020-01-31 00:00:00
abstract::The aim of this study was to compare the effects of high-intensity small-sided games training (SSGT) versus repeated-sprint training (RST) on repeated-sprint ability (RSA), soccer specific endurance performance and short passing ability among junior soccer players. The junior soccer players were recruited from of a pr...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2017-0104
更新日期:2017-12-28 00:00:00
abstract::This study aimed to analyze the effects of power training using traditional vertical resistance exercises versus direction specific horizontal inertial flywheel training on performance in common sport-related tasks. Twenty-three healthy and physically active males (age: 22.29 ± 2.45 years) volunteered to participate i...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2015-0071
更新日期:2015-10-14 00:00:00
abstract::Making assessments regarding postural control and balance is very important for injury prevention in soccer. However, there has been no study that has associated postural control variables with branch-specific technical properties in a game. The aim of the present study was to determine the relationships between varia...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2016-0010
更新日期:2016-10-14 00:00:00
abstract::The aim of the present study was to investigate the effect of warm-up and cool-down exercise on delayed onset of muscle soreness at the distal and central parts of rectus femoris following leg resistance exercise. Thirty-six volunteers (21 women, 15 men) were randomly assigned to the warm-up (20 min ergometer cycling ...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/v10078-012-0079-4
更新日期:2012-12-01 00:00:00
abstract::We investigated how acclimatization effects achieved during a high-altitude alpinist expedition influence endurance performance, ventilation ([Formula: see text]) and blood oxygen saturation (SaO2) in normoxic (NOR) and hypoxic conditions (HYP). An incremental testing protocol on a cycle ergometer was used to determin...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2015-0149
更新日期:2016-04-13 00:00:00
abstract::The aim of this study was to analyze the practical skills of rhythmic gymnastics judges and to identify how their degree and experience influence the assessment of these skills. Sixty one rhythmic gymnastics judges participated in the study. A questionnaire was used for data collection. This tool was composed of 28 qu...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/hukin-2013-0087
更新日期:2013-12-31 00:00:00
abstract::The purpose of this study was to examine coaches' preferences for continuing coaching education. The sample consisted of 122 male and 102 female coaches from the Gauteng Province of South Africa who were purposively recruited to participate in this study. The results of this study showed that the coaches wanted to lea...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2015-0160
更新日期:2016-04-13 00:00:00
abstract::The aim of this study was to examine the physical activity during the break-times of primary school children in rural areas, and its relationship with age and sex. 380 children (192 boys and 188 girls; age=9.5±1.1 years) participated in the study. Break-time physical activity in the morning and lunch breaks was measur...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/hukin-2014-0024
更新日期:2014-04-09 00:00:00
abstract::The sympathetic nervous system dominates the regulation of body functions during exercise. Therefore after exercise, the sympathetic nervous system withdraws and the parasympathetic nervous system helps the body return to a resting state. In the examination of this relationship, the purpose of this study was to compar...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/hukin-2014-0031
更新日期:2014-07-08 00:00:00
abstract::The purpose of this study was to determine the differences in biomechanical characteristics between one- and two-legged running vertical jumps (1-LRVJ and 2-LRVJ). Ten male college volleyball players voluntarily participated in this study. Two running vertical jumps used in volleyball were randomly performed. Three tr...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2017-0185
更新日期:2018-10-15 00:00:00
abstract::The purpose of this study was to compare strength gains in the lower limbs, assessed by one maximum repetition (1RM) and isokinetic peak torque (PT), in young men undergoing a resistance training (RT) program. Twenty-seven young men performed resistance training twice a week for 11 weeks. Training involved two exercis...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2017-0019
更新日期:2017-03-12 00:00:00
abstract::The purpose of this study was to determine the appropriateness of using an elastic hamstring assistance device to reduce perceived levels of soreness, increase isometric strength, increase passive range of motion, and decrease biomarkers of muscle damage after eccentric exercise, specifically, downhill running This st...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2017-0048
更新日期:2017-06-22 00:00:00
abstract::This study aimed to analyse the short-term performance effects of three in-season low-volume strength-training programmes in college male soccer players. Fifty-seven male college soccer players (age: 20.3±1.6 years) were randomly assigned to a resistance-training group (n=12), plyometric training group (n=12), complex...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/hukin-2014-0014
更新日期:2014-04-09 00:00:00
abstract::This study aimed to examine the alterations in physiological and biochemical markers, after 17 weeks of ballet training in high level ballet dancers. Twenty four female ballet dancers from 12 to 15 years old took part in the study. The study followed 17 weeks of ballet training and analyzed changes in body composition...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2015-0062
更新日期:2015-10-14 00:00:00
abstract::Understanding the physical activity patterns of youth is an essential step in preparing programming and interventions needed to change behavior. To date, little is known about the intricacies of youth physical activity across various physical activity segments (i.e. in school, out of school, recess, classroom physical...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2015-0082
更新日期:2015-10-14 00:00:00
abstract::The aim of the study was to analyze etiology and the incidence of sports injuries among wheelchair rugby players. Moreover, we verified if the levels of aggressiveness and anger presented by the athletes and their roles in the team influenced the incidence and severity of the injuries. The study involved 14 male playe...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2015-0098
更新日期:2015-01-12 00:00:00
abstract::The aim of the study was to determine associations between physical activity and other elements of women's lifestyle (nutrition, being a nonsmoker, moderate alcohol consumption, medical check-ups). Between 1999 and 2004, 1361 women aged 20-75 were studied. They were inhabitants of cities located in the west of Poland ...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/v10078-011-0050-9
更新日期:2011-09-01 00:00:00
abstract::Nuclear respiratory factor 2 (NRF2), also referred to as the GA-binding protein (GABP) transcription factor, is a key transcriptional activator of many nuclear genes which encode a wide range of mitochondrial enzymes. The variants of the GABPB1 gene encoding the beta1 subunit of NRF2 protein have been associated with ...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/v10078-012-0012-x
更新日期:2012-03-01 00:00:00
abstract::The aim of this study was to analyze the effect of a teaching program, based on Non-Linear Pedagogy, on decision-making and performance in youth soccer players as a function of the type of play action. Our participants were 19 players from the U12 age category. The teaching program, which was based on the application ...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2017-0169
更新日期:2018-06-13 00:00:00
abstract::Team handball is a complex intermittent sport game, which requires several motor abilities and effective postural control. Objective evaluation of stabilometric variables may be interesting to assess and improve functional parameters by postural control management. The purpose of the study was to evaluate the effects ...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/hukin-2019-0024
更新日期:2019-10-18 00:00:00
abstract::This study was designed to quantify and compare Electromyographic activity (EMG) and applied load in quadriceps muscle within performing high intensity knee extension exercises by Elastic Resistance (ER) and Nautilus Machine (NM). Sixteen male and female subjects (22.4 ± 4.7 yrs) completed 8 RM seated knee extension b...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/v10078-011-0067-0
更新日期:2011-12-01 00:00:00
abstract::The relative age effect (RAE), within the sporting scope, refers to the possible advantages of participation and performance of athletes born in the first months of the year of selection in relation to others within the same age category. The aim of the present study was to investigate the RAE in girls' volleyball pla...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/hukin-2019-0106
更新日期:2020-03-31 00:00:00
abstract::The aim of this study was to determine the anthropometric and physical characteristics of youth elite paddlers and to identify the differences between kayakers and canoeists. A total of 171 male paddlers (eighty-nine kayakers and eighty-two canoeists), aged 13.69 ± 0.57 years (mean ± SD) volunteered to participate in ...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2017-0059
更新日期:2017-06-22 00:00:00
abstract::Sleep is a vital component of preparation, performance and recovery for a Super Rugby game. The purpose of this study was to quantify sleep behaviours and alertness of professional rugby union players during training and a game. Thirty-six rugby union players from a Super Rugby team wore a wrist-activity device (Readi...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/hukin-2018-0088
更新日期:2019-07-05 00:00:00
abstract::Pacing strategies have mainly been investigated for runners, but little is known for cross-country skiers. The aim of the present study was to examine the effects of performance and age on pacing strategies in cross-country skiing. All finishers (women, n = 19,375; men, n = 86,190) in the 'Engadin Ski Marathon' (42 km...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/hukin-2018-0055
更新日期:2019-03-27 00:00:00
abstract::The aim of the present study was to evaluate the effects of 2 different intensities of resistance training (RT) bouts, performed with the equated total load lifted (TLL), on the acute responses of neurotrophic factors (NFs) (brain-derived neurotrophic factor [BDNF]; and nerve growth factor [NGF]), as well as on metabo...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/hukin-2020-0030
更新日期:2020-08-31 00:00:00
abstract::The purpose of the study was to assess straight sprinting, change of direction ability and horizontal jump performance in youth runners according to age and gender. Two hundred and fifty-five youth runners (116 boys and 139 girls) participated in this study. The athletes were divided according to their age into five g...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.1515/hukin-2017-0103
更新日期:2017-12-28 00:00:00
abstract::The enforced sedentary lifestyle and muscle paresis below the level of injury are associated with adipose tissue accumulation in the trunk. The value of anthropometric indicators of obesity in patients with spinal cord injuries has also been called into question. We hypothesized that the Body Mass Index recommended by...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/hukin-2014-0105
更新日期:2014-11-12 00:00:00
abstract::The use of resistance exercises and of typical strength training methods have been progressively used to control body mass and to promote fat mass loss. The difficulties involved in the energy cost calculation during strength training are associated with the large amount of exercises and their several variations. Mean...
journal_title:Journal of human kinetics
pub_type: 杂志文章
doi:10.2478/v10078-011-0056-3
更新日期:2011-09-01 00:00:00