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Further : seeking the distant limits of cycling endurance
'Further' immerses the reader in the world of endurance cycling as well-known former professional cyclist Michael Hutchinson talks to ultra-distance athletes, exercise scientists, nutritionists and psychologists - 'those who've done it and those who understand it' - as he unpicks both the physical and mental demands, attempts to understand the key to successful endurance, and tries not to get himself accidentally killed while riding a frankly terrifyingly long-distance event.
BOOK
Comparing The Effects of Maximal Strength Training, Plyometric Training, and Muscular Endurance Training on Swimming-Specific Performance Measures: A Randomized Parallel Controlled Study in Young Swimmers
The aim of this study was to compare the effects of maximal strength training (MST), plyometric training (PT), and muscular endurance training (MET) on starting performance and swimming performance at 25- and 50-meters freestyle. A randomized parallel controlled study was conducted involving twenty-seven high-level university swimmers (Tier 2), both men and women (age: 20.2 ± 1.1 years). The training interventions lasted six weeks, with each training group participating twice a week. MST involved resistance training at 80-95% of one maximum repetition, while PT included maximal eccentric-concentric quick movements. MET, considered as a control group, consisted of free-weight exercises or light loads performed multiple times. The swimmers were assessed before, during (in the 3rd week), and after the interventions by measuring their start performance based on takeoff distance and time at the 15-meter mark. Swimming performance was assessed through the following tests: 25-meter freestyle kicking (without stroking), 25-meter freestyle stroke (without kicking), and 25-meter and 50-meter freestyle sprints. The mixed ANCOVA, using pre-evaluation scores as covariates, revealed that after the intervention, MST was significantly better than MET in start flight distance (p = 0.021), 15-meter start time (p < 0.001), 25-meter freestyle kick (p < 0.001), 25-meter freestyle stroke (p < 0.001), 25-meter freestyle (p = 0.004), and 50-meter freestyle (p < 0.001). PT was also significantly better than MET in 15-meter start time (p = 0.004), 25-meter freestyle kick (p = 0.011), 25-meter freestyle stroke (p < 0.001), and 50-meter freestyle (p = 0.014). After the intervention, no significant differences were found between MST and PT, although some differences were observed during the mid-evaluation. The conclusions reveal that, although all groups showed significant improvement in performance, MST and PT exhibited significantly better results compared to MET in enhancing sprint freestyle performance overall.
Journal Article
The Effect of Speed Endurance Versus Core Training on The Repeated Sprint Ability of Youth Male Soccer Players – A Randomized Controlled Trial
The effects of specific training protocols to improve repeated sprint ability are well known; however, the utility of non-specific training for this purpose is doubtful. Therefore, this study aimed to compare the effects of a specific (sport-related) vs. non-specific (general physical development) eight-week training protocol on developing or maintaining repeated sprint ability in soccer players. Thirty-eight male soccer players (aged 17.1 ± 0.3 years) were randomly divided into a speed endurance group (n = 18) and a core training group (n = 20). The speed endurance group performed 4 sprints lasting 15 seconds with a recovery of 75 seconds, while the core training group performed 2 sets of 4 exercises for 30 seconds with 15 seconds of recovery. Both protocols were performed twice a week. All players performed the Running-Based Anaerobic Sprint Test (6 consecutive 35-meter sprints with 10-seconds recovery intervals). A mixed two-way ANOVA was performed with no significant effects in the interaction term. On average, the speed endurance and the core training groups improved their repeated sprint ability by 7.9% and 8.0%, respectively, from pre- to post-assessment (p < 0.001, η2p = 0.459). No significant between-group differences were detected for the Running-Based Anaerobic Sprint Test total time or maximum power. In principle, specific and non-specific low-volume training protocols may improve repeated sprint ability over eight weeks in soccer players. However, the improvements may have been derived from the continued soccer-specific training, which is the reason why future studies should include a passive control group and test whether high session volumes produce different results.
Journal Article
The effect of a 4-week, remotely administered, post-exercise passive leg heating intervention on determinants of endurance performance
PurposePost-exercise passive heating has been reported to augment adaptations associated with endurance training. The current study evaluated the effect of a 4-week remotely administered, post-exercise passive leg heating protocol, using an electrically heated layering ensemble, on determinants of endurance performance.MethodsThirty recreationally trained participants were randomly allocated to either a post-exercise passive leg heating (PAH, n = 16) or unsupervised training only control group (CON, n = 14). The PAH group wore the passive heating ensemble for 90–120 min/day, completing a total of 20 (16 post-exercise and 4 stand-alone leg heating) sessions across 4 weeks. Whole-body (peak oxygen uptake, gas exchange threshold, gross efficiency and pulmonary oxygen uptake kinetics), single-leg exercise (critical torque and NIRS-derived muscle oxygenation), resting vascular characteristics (flow-mediated dilation) and angiogenic blood measures (nitrate, vascular endothelial growth factor and hypoxia inducible factor 1−α) were recorded to characterize the endurance phenotype. All measures were assessed before (PRE), at 2 weeks (MID) and after (POST) the intervention.ResultsThere was no effect of the intervention on test of whole-body endurance capacity, vascular function or blood markers (p > 0.05). However, oxygen kinetics were adversely affected by PAH, denoted by a slowing of the phase II time constant; τ (p = 0.02). Furthermore, critical torque–deoxygenation ratio was improved in CON relative to PAH (p = 0.03).ConclusionWe have demonstrated that PAH had no ergogenic benefit but instead elicited some unfavourable effects on sub-maximal exercise characteristics in recreationally trained individuals.
Journal Article
Maximal strength training improves muscle-tendon properties and increases tendon matrix remodulation in well-trained triathletes
This study assessed the effects of a 12-week strength training (ST) intervention on Achilles and patellar tendon stiffness and tendon-matrix blood-borne markers in well-trained triathletes performing concomitant high-volume aerobic training. Eighteen triathletes (VO
2
max: 64.43 ± 4.65 ml kg
−1
min
−1
) were randomized into a combined endurance and ST group (3-times/week; intervention) or endurance-only group (control). Pre- and post-intervention assessments included ultrasound-based force-elongation measurements of the Achilles and patellar tendons, blood analysis of selected markers before and after an experimental ST session in weeks 1 and 12, and dynamic strength and endurance testing. Achilles (39.1 ± 31.8%) and patellar tendon stiffness (15.8 ± 8.5%), isometric maximal knee extensor strength (8.9 ± 5.7%), and squat one-repetition maximum (20.0 ± 9.7%) significantly increased in the intervention group (all
p
≤ 0.002). Additionally, serum concentrations of matrix metalloproteinase (MMP) I (46.30 ± 20%;
p
= 0.027) and decorin (30.50 ± 19.94%;
p
= 0.015) increased after the first experimental ST session, while after the second session MMP-III (40.77 ± 20.13%;
p
= 0.040) and decorin (36.59 ± 37.81%;
p
= 0.007) were increased. Baseline tenascin-c concentrations decreased significantly only in the control group (-19.49 ± 20.55%;
p
= 0.029). Our data clearly show improved muscle-tendon properties of the plantar flexor muscles and quadriceps femoris, indicating Achilles and patellar tendon stiffness to be similarly responsive to heavy ST despite concomitantly performing high volumes of endurance training.
Journal Article
Spartan fit! : 30 days. Transform your mind. Transform your body. Commit to grit.
Offers a thirty-one-day fitness and diet plan to help achieve peak physical and mental fitness through full-body workouts that don't require gym access or weights.
Book
The effects of five weeks of climbing training, on and off the wall, on climbing specific strength, performance, and training experience in female climbers—A randomized controlled trial
Recent research has elucidated the effects of strength training on climbing performance. Although local muscular endurance training of the upper-limbs and finger flexors is frequently suggested, there is currently insufficient evidence to support its impact on climbing performance and climbing-specific strength. Furthermore, there is no evidence on climbers’ experiences related to training and the likelihood of consistent engagement. In addition, the effects of more climbing-specific strength training on walls with built in lights and adjustable angles have yet to be examined. The low percentage of studies involving female subjects, additionally, demonstrates a significant gap in understanding the specific effects of strength training on women in the context of climbing. The aim of this study was thus to assess the effects of five-week on-, and off-the-wall climbing training on climbing performance, climbing-specific strength, and training experience. Thirty-one female lower-grade to advanced climbers were randomly assigned to either a control group, an off-the-wall training or an on-the-wall training group. Apart from the training regimen, all groups followed their usual climbing and bouldering routine. Subjects trained at least twice a week. Bouldering performance, and maximum strength and muscular endurance of the finger flexors and upper-limbs were assessed before and after the intervention. Furthermore, rate of perceived exertion and discomfort, exercise enjoyment, and exercise pleasure were assessed during the first and last training session, as well as after two and a half weeks of training. Intrinsic training motivation was assessed after the last training session. The results showed trends towards positive effects of off-the-wall training on climbing-specific strength, and on-the-wall training on climbing technique. Furthermore, our finding revealed high exercise enjoyment and intrinsic training motivation for both on- and off-the-wall training. Hence, lower-grade to advanced female climbers should rely on personal training preferences.
Journal Article