LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 6 of total 6

Search options

  1. Article ; Online: Warm-Up Improves Balance Control Differently in the Dominant and Non-Dominant Leg in Young Sportsmen According to Their Experience in Asymmetric or Symmetric Sports.

    Brighenti, Alfredo / Noé, Frédéric / Stella, Federico / Schena, Federico / Mourot, Laurent

    International journal of environmental research and public health

    2022  Volume 19, Issue 8

    Abstract: The aim of this study was to investigate the acute effects of a warm-up on balance control and inter-limb balance asymmetries by analyzing the influence of the nature of the sport practiced by participants. Twelve sportspeople were recruited. They had to ...

    Abstract The aim of this study was to investigate the acute effects of a warm-up on balance control and inter-limb balance asymmetries by analyzing the influence of the nature of the sport practiced by participants. Twelve sportspeople were recruited. They had to stand on a force plate for 30 s in a one-leg stance on their dominant (used to perform skilled movements) and non-dominant leg (used to support the body) before and 2, 5, 10, 15 and 20 min after a 10 min warm-up exercise performed at moderate intensity on a cycle ergometer. The center of foot pressure displacements was recorded. Statistical analysis was performed by considering one group of all participants and with two subgroups according to the symmetrical or asymmetrical nature of the sport they practiced. The warm-up exercise improved acute balance control only on the dominant leg after a 20 min rest without significantly reducing inter-limb balance asymmetries. This effect was more characteristic of participants with experience in asymmetric sports. These results confirm previous findings of the greater sensitivity of the dominant leg to the physiological state and reveal that between-leg differences in balance control appear mainly in subjects with experience in asymmetric sports in a specific physiological condition (post-warm-up state).
    MeSH term(s) Foot/physiology ; Humans ; Leg/physiology ; Movement/physiology ; Postural Balance/physiology ; Warm-Up Exercise
    Language English
    Publishing date 2022-04-10
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph19084562
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Post-Exercise Hypotension and Reduced Cardiac Baroreflex after Half-Marathon Run: In Men, but Not in Women.

    Mourot, Laurent / Fornasiero, Alessandro / Rakobowchuk, Mark / Isacco, Laurie / Brighenti, Alfredo / Stella, Federico / Zignoli, Andrea / Pellegrini, Barbara / Tarperi, Cantor / Schena, Federico

    International journal of environmental research and public health

    2020  Volume 17, Issue 17

    Abstract: We examined whether trained women exhibit similar cardiovascular and cardiac baroreflex alterations after a half-marathon compared to men. Thirteen women (39.1 ± 9.3 years; 165 ± 6 cm; 58.2 ± 7.5 kg; maximal aerobic speed (MAS): 13.7 ± 2.2 km· ... ...

    Abstract We examined whether trained women exhibit similar cardiovascular and cardiac baroreflex alterations after a half-marathon compared to men. Thirteen women (39.1 ± 9.3 years; 165 ± 6 cm; 58.2 ± 7.5 kg; maximal aerobic speed (MAS): 13.7 ± 2.2 km·h
    MeSH term(s) Adult ; Baroreflex ; Blood Pressure ; Female ; Heart Rate ; Humans ; Male ; Middle Aged ; Post-Exercise Hypotension ; Running/physiology
    Language English
    Publishing date 2020-08-31
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1660-4601
    ISSN (online) 1660-4601
    DOI 10.3390/ijerph17176337
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Cardiovascular and metabolic responses during indoor climbing and laboratory cycling exercise in advanced and élite climbers.

    Limonta, Eloisa / Brighenti, Alfredo / Rampichini, Susanna / Cè, Emiliano / Schena, Federico / Esposito, Fabio

    European journal of applied physiology

    2018  Volume 118, Issue 2, Page(s) 371–379

    Abstract: Purpose: To validate heart rate (f : Methods: Seven advanced and six élite climbers performed a discontinuous incremental test on a cycle ergometer and a similar test on a climbing treadwall. Cardiorespiratory and gas exchange parameters were ... ...

    Abstract Purpose: To validate heart rate (f
    Methods: Seven advanced and six élite climbers performed a discontinuous incremental test on a cycle ergometer and a similar test on a climbing treadwall. Cardiorespiratory and gas exchange parameters were collected at rest and during exercise.
    Results: The f
    Conclusions: Our findings indicate that care should be taken when energy expenditure during climbing is estimated from the f
    MeSH term(s) Adult ; Athletes ; Athletic Performance ; Exercise Test/methods ; Exercise Test/standards ; Heart Rate ; Humans ; Male ; Mountaineering/physiology ; Oxygen Consumption
    Language English
    Publishing date 2018-02
    Publishing country Germany
    Document type Evaluation Studies ; Journal Article
    ZDB-ID 124793-1
    ISSN 1439-6327 ; 1432-1025 ; 0301-5548 ; 1439-6319
    ISSN (online) 1439-6327 ; 1432-1025
    ISSN 0301-5548 ; 1439-6319
    DOI 10.1007/s00421-017-3779-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Effects of Ultratrail Running on Skeletal-Muscle Oxygenation Dynamics.

    Vernillo, Gianluca / Brighenti, Alfredo / Limonta, Eloisa / Trabucchi, Pietro / Malatesta, Davide / Millet, Grégoire P / Schena, Federico

    International journal of sports physiology and performance

    2017  Volume 12, Issue 4, Page(s) 496–504

    Abstract: Purpose: To quantify changes in skeletal-muscle oxygenation and pulmonary O: Methods: Before (PRE) and after (POST) the race (330-km, 24000 D±), profiles of vastus lateralis muscle oxygenation (ie, oxyhemoglobin [O: Results: At POST, normalized [ ... ...

    Abstract Purpose: To quantify changes in skeletal-muscle oxygenation and pulmonary O
    Methods: Before (PRE) and after (POST) the race (330-km, 24000 D±), profiles of vastus lateralis muscle oxygenation (ie, oxyhemoglobin [O
    Results: At POST, normalized [HHb] values increased (p1, +38.0%; p1.5, +27.9%; P < .05), while normalized [O2Hb] (p1, -20.4%; p1.5, -14.4%; P < .05) and TOI (p1, -17.0%; p1.5, -17.7%; P < .05) decreased in EXP. V̇O
    Conclusions: The concentric and, particularly, the eccentric loads characterizing this extreme ultratrail-running bout may have led to variations in muscle structure and function, increasing the local muscle deoxygenation profile and the imbalance between O
    Language English
    Publishing date 2017-04
    Publishing country United States
    Document type Journal Article
    ISSN 1555-0273
    ISSN (online) 1555-0273
    DOI 10.1123/ijspp.2015-0745
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Similar cardiovascular and autonomic responses in trained type 1 diabetes mellitus and healthy participants in response to half marathon.

    Mourot, Laurent / Fornasiero, Alessandro / Rakobowchuk, Mark / Skafidas, Spyros / Brighenti, Alfredo / Stella, Federico / Zignoli, Andrea / Savoldelli, Aldo / Pellegrini, Barbara / Danese, Elisa / Lippi, Giuseppe / Tarperi, Cantor / Schena, Federico

    Diabetes research and clinical practice

    2019  Volume 160, Page(s) 107995

    Abstract: Aims: This field experiment examined whether trained people with type 1 diabetes mellitus (T1D) have similar cardiovascular and baroreflex alterations after a 21-km running race when compared to healthy people.: Methods: Nine T1D (39.0 ± 11.1 yr; 175. ...

    Abstract Aims: This field experiment examined whether trained people with type 1 diabetes mellitus (T1D) have similar cardiovascular and baroreflex alterations after a 21-km running race when compared to healthy people.
    Methods: Nine T1D (39.0 ± 11.1 yr; 175.0 ± 10.2 cm; 70.8 ± 8.7 kg) were matched with 9 healthy participants (42.4 ± 5.8 yr; 175.7 ± 6.7 cm; 72.1 ± 8.5 kg) who ran an official half-marathon. Before and 1-hour after the race, cardiovascular variables, sympathetic activity (catecholamines), parasympathetic (heart rate variability analysis) modulation and cardiac baroreflex function (transfer function analysis) were assessed during supine rest and a squat stand test (forced blood pressure change).
    Results: Performance time and weight loss [104.0 ± 13.2 and 111.0 ± 18.7 min; -2.57 ± 1.05 kg (-1.88 ± 0.88%) and -2.29 ± 1.15 kg (-1.59 ± 0.59%)] for healthy and T1D participants, respectively) were similar. Before running, no significant differences in any cardiovascular or autonomic variables were noted between the groups. After 1 h of recovery, both groups exhibited post-exercise hypotension, accompanied by increased sympathetic activity, decreased parasympathetic modulation, and reduced cardiac baroreflex sensitivity.
    Conclusions: Our results showed that the pattern of change in cardiovascular and autonomic nervous activity to strenuous exercise are well maintained in T1D participants with a training history of at least 5 years.
    MeSH term(s) Adult ; Autonomic Nervous System/physiopathology ; Blood Pressure/physiology ; Case-Control Studies ; Cross-Sectional Studies ; Diabetes Mellitus, Type 1/complications ; Diabetes Mellitus, Type 1/physiopathology ; Exercise/physiology ; Female ; Healthy Volunteers ; Humans ; Male ; Running/physiology
    Language English
    Publishing date 2019-12-31
    Publishing country Ireland
    Document type Journal Article
    ZDB-ID 632523-3
    ISSN 1872-8227 ; 0168-8227
    ISSN (online) 1872-8227
    ISSN 0168-8227
    DOI 10.1016/j.diabres.2019.107995
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article: Effects of acute hypoxia on the oxygen uptake kinetics of older adults during cycling exercise.

    Zerbini, Livio / Brighenti, Alfredo / Pellegrini, Barbara / Bortolan, Lorenzo / Antonetti, Tommaso / Schena, Federico

    Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme

    2012  Volume 37, Issue 4, Page(s) 744–752

    Abstract: Pulmonary oxygen uptake, heart rate (HR), and deoxyhemoglobin (HHb) kinetics were studied in a group of older adults exercising in hypoxic conditions. Fourteen healthy older adults (aged 66 ± 6 years) performed 4 exercise sessions that consisted of (i) ... ...

    Abstract Pulmonary oxygen uptake, heart rate (HR), and deoxyhemoglobin (HHb) kinetics were studied in a group of older adults exercising in hypoxic conditions. Fourteen healthy older adults (aged 66 ± 6 years) performed 4 exercise sessions that consisted of (i) an incremental test to exhaustion on a cycloergometer while breathing normoxic room air (fractional inspired oxygen (FiO(2)) = 20.9% O(2)); (ii) an incremental test to exhaustion on a cycloergometer while breathing hypoxic room air (FiO(2) = 15% O(2)); (iii) 3 repeated square wave cycling exercises at moderate intensity while breathing normoxic room air; and (iv) 3 repeated square wave cycling exercises at moderate intensity while breathing hypoxic room air. During all exercise sessions, pulmonary gas exchange was measured breath-by-breath; HHb was determined on the vastus lateralis muscle by near-infrared spectroscopy; and HR was collected beat-by-beat. The pulomary oxygen uptake kinetics became slower in hypoxia (31 ± 9 s) than in normoxia (27 ± 7 s) because of an increased mismatching between O(2) delivery to O(2) utilization at the level of the muscle. The HR and HHb kinetics did not change between hypoxia and normoxia.
    MeSH term(s) Acute Disease ; Aged ; Aging/physiology ; Exercise/physiology ; Exercise Test ; Heart Rate/physiology ; Hemoglobins/metabolism ; Humans ; Hypoxia/metabolism ; Hypoxia/physiopathology ; Male ; Middle Aged ; Models, Biological ; Oxygen/administration & dosage ; Oxygen/metabolism ; Oxygen Consumption/physiology ; Pulmonary Gas Exchange/physiology ; Spectroscopy, Near-Infrared
    Chemical Substances Hemoglobins ; deoxyhemoglobin (9008-02-0) ; Oxygen (S88TT14065)
    Language English
    Publishing date 2012-08
    Publishing country Canada
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2236708-1
    ISSN 1715-5320 ; 1715-5312
    ISSN (online) 1715-5320
    ISSN 1715-5312
    DOI 10.1139/h2012-048
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top