Daniel Hammarström
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View article: Block Training With Moderate‐ or High‐Intensity Intervals Both Improve Endurance Performance in Well‐Trained Cyclists
Block Training With Moderate‐ or High‐Intensity Intervals Both Improve Endurance Performance in Well‐Trained Cyclists Open
The purpose of this study was to compare the effects of a 1‐week block of moderate‐intensity interval training (MIT) and high‐intensity interval training (HIT) in well‐trained cyclists. Cyclists (♀ = 1; ♂ = 21; maximal oxygen uptake (V̇O 2m…
View article: The higher oxygen consumption during multiple short intervals is sex‐independent and not influenced by skeletal muscle characteristics in well‐trained cyclists
The higher oxygen consumption during multiple short intervals is sex‐independent and not influenced by skeletal muscle characteristics in well‐trained cyclists Open
It has been suggested that time spent at a high fraction of maximal oxygen consumption (%O 2max ) plays a decisive role for adaptations to interval training. However, previous studies examining how interval sessions should be designed to a…
View article: The higher the fraction of maximal oxygen uptake is during interval training, the greater is the cycling performance gain
The higher the fraction of maximal oxygen uptake is during interval training, the greater is the cycling performance gain Open
It has been suggested that time at a high fraction (%) of maximal oxygen uptake (VO 2max ) plays a decisive role for adaptations to interval training. Yet, no study has, to date, measured the % of VO 2max during all interval sessions throu…
View article: Glucose ingestion before and after resistance training sessions does not augment ribosome biogenesis in healthy moderately trained young adults
Glucose ingestion before and after resistance training sessions does not augment ribosome biogenesis in healthy moderately trained young adults Open
Purpose Resistance training-induced skeletal muscle hypertrophy seems to depend on ribosome biogenesis and content. High glucose treatment may augment ribosome biogenesis through potentiating resistance training-induced adaptations. This w…
View article: Heat suit training increases hemoglobin mass in elite cross‐country skiers
Heat suit training increases hemoglobin mass in elite cross‐country skiers Open
Purpose The primary purpose was to test the effect of heat suit training on hemoglobin mass (Hb mass ) in elite cross‐country (XC) skiers. Methods Twenty‐five male XC‐skiers were divided into a group that added 5 × 50 min weekly heat suit …
View article: Resistance exercise training increases skeletal muscle mitochondrial respiration in chronic obstructive pulmonary disease
Resistance exercise training increases skeletal muscle mitochondrial respiration in chronic obstructive pulmonary disease Open
Background Chronic obstructive pulmonary disease (COPD) is associated with skeletal muscle mitochondrial dysfunction. Resistance exercise training (RT) is a training modality with a relatively small pulmonary demand that has been suggested…
View article: Ribosome accumulation during early phase resistance training in humans
Ribosome accumulation during early phase resistance training in humans Open
Aim To describe ribosome biogenesis during resistance training, its relation to training volume and muscle growth. Methods A training group (n = 11) performed 12 sessions (3‐4 sessions per week) of unilateral knee extension with constant a…
View article: Normalization of Gene Expression Data Revisited: The Three Viewpoints of the Transcriptome in Human Skeletal Muscle Undergoing Load-induced Hypertrophy and Why They Matter
Normalization of Gene Expression Data Revisited: The Three Viewpoints of the Transcriptome in Human Skeletal Muscle Undergoing Load-induced Hypertrophy and Why They Matter Open
BackgroundThe biological relevance and accuracy of gene expression data depend on the adequacy of data normalization. This is both due to its role in resolving and accounting for technical variation and errors, and its defining role in sha…
View article: Chronic obstructive pulmonary disease does not impair responses to resistance training
Chronic obstructive pulmonary disease does not impair responses to resistance training Open
Background Subjects with chronic obstructive pulmonary disease (COPD) are prone to accelerated decay of muscle strength and mass with advancing age. This is believed to be driven by disease-inherent systemic pathophysiologies, which are al…
View article: Vitamin D <sub>3</sub> supplementation does not enhance the effects of resistance training in older adults
Vitamin D <sub>3</sub> supplementation does not enhance the effects of resistance training in older adults Open
Background Lifestyle therapy with resistance training is a potent measure to counteract age‐related loss in muscle strength and mass. Unfortunately, many individuals fail to respond in the expected manner. This phenomenon is particularly c…
View article: Chronic Obstructive Pulmonary Disease Does Not Impair Responses to Resistance Training
Chronic Obstructive Pulmonary Disease Does Not Impair Responses to Resistance Training Open
Rationale Subjects with chronic obstructive pulmonary disease (COPD) are prone to accelerated decay of muscle strength and mass with advancing age. This is mediated by systemic pathophysiologies, which are also believed to impair responses…
View article: No benefits of prolonged vitamin D<sub>3</sub> supplementation for adaptations to resistance training in old adults
No benefits of prolonged vitamin D<sub>3</sub> supplementation for adaptations to resistance training in old adults Open
Background Lifestyle therapy with resistance training is a potent measure to counteract age-related loss in muscle strength and mass. Unfortunately, many individuals fail to respond in the expected manner. This phenomenon is particularly c…
View article: Systemic and muscular responses to effort‐matched short intervals and long intervals in elite cyclists
Systemic and muscular responses to effort‐matched short intervals and long intervals in elite cyclists Open
The purpose of this study was to compare the acute effects of time‐ and effort‐matched high‐intensity intervals on physiological, endocrine, and skeletal muscle molecular variables in elite cyclists. Eight elite cyclists performed short in…
View article: Additional file 1 of Increased biological relevance of transcriptome analyses in human skeletal muscle using a model-specific pipeline
Additional file 1 of Increased biological relevance of transcriptome analyses in human skeletal muscle using a model-specific pipeline Open
Additional file 1: Gene count estimates. Model (negative binomial generalized linear mixed models) based estimates of gene counts from models using different normalization strategies. ensemblid: Ensembl gene identifiers; normalization_mode…
View article: Additional file 2 of Increased biological relevance of transcriptome analyses in human skeletal muscle using a model-specific pipeline
Additional file 2 of Increased biological relevance of transcriptome analyses in human skeletal muscle using a model-specific pipeline Open
Additional file 2: Functional annotation using gene ontology terms. Significance tests for functional annotation using rank-based and over-representation based analysis. ID: Gene ontology (GO) id; go_category: GO category, bp, Biological p…
View article: Benefits of higher resistance‐training volume are related to ribosome biogenesis
Benefits of higher resistance‐training volume are related to ribosome biogenesis Open
Key points For individuals showing suboptimal adaptations to resistance training, manipulation of training volume is a potential measure to facilitate responses. This remains unexplored. Here, 34 untrained individuals performed contralater…
View article: Benefits of higher resistance-training volume depends on ribosome biogenesis
Benefits of higher resistance-training volume depends on ribosome biogenesis Open
Resistance-exercise volume is a determinant of training outcomes. However not all individuals respond in a dose-dependent fashion. In this study, 34 healthy individuals (males n = 16, age 23.6 (4.1) years; females n = 18, 22.0 (1.3) years)…
View article: Effects of Initial Performance, Gross Efficiency and O2peak Characteristics on Subsequent Adaptations to Endurance Training in Competitive Cyclists
Effects of Initial Performance, Gross Efficiency and O2peak Characteristics on Subsequent Adaptations to Endurance Training in Competitive Cyclists Open
The present study investigated the effects of initial levels of cycling performance, peak oxygen uptake (O2peak) and gross efficiency (GE) on the subsequent adaptations of these variables and their relationship following high-intensity tra…
View article: Effects of Exercise in the Fasted and Postprandial State on Interstitial Glucose in Hyperglycemic Individuals.
Effects of Exercise in the Fasted and Postprandial State on Interstitial Glucose in Hyperglycemic Individuals. Open
The purpose of the present study was to test if one bout of moderate exercise performed in either the fasted or the postprandial state affects glucose values measured over 22 hours. Twelve participants diagnosed with hyperglycemia not usin…
View article: The Effect of Different High-Intensity Periodization Models on Endurance Adaptations
The Effect of Different High-Intensity Periodization Models on Endurance Adaptations Open
This study suggests that organizing different interval sessions in a specific periodized mesocycle order or in a mixed distribution during a 12-wk training period has little or no effect on training adaptation when the overall training loa…
View article: Optimal VO2max-to-mass ratio for predicting 15 km performance among elite male cross-country skiers
Optimal VO2max-to-mass ratio for predicting 15 km performance among elite male cross-country skiers Open
The aim of this study was 1) to validate the 0.5 body-mass exponent for maximal oxygen uptake (V̇O2max) as the optimal predictor of performance in a 15 km classical-technique skiing competition among elite male cross-country skiers and 2) t…
View article: Blood flow-restricted strength training displays high functional and biological efficacy in women: a within-subject comparison with high-load strength training
Blood flow-restricted strength training displays high functional and biological efficacy in women: a within-subject comparison with high-load strength training Open
Limited data exist on the efficacy of low-load blood flow-restricted strength training (BFR), as compared directly to heavy-load strength training (HST). Here, we show that 12 wk of twice-a-week unilateral BFR [30% of one repetition maximu…