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  • 1
    Online Resource
    Online Resource
    Comparison of the Acute Effects of Foam Rolling with High and Low Vibration Frequencies on Eccentrically Damaged Muscle
    Journal of Sports Science and Medicine ; 2022
    In:  Journal of Sports Science and Medicine
    Details
    In: Journal of Sports Science and Medicine, Journal of Sports Science and Medicine
    Abstract: Previous research has shown that vibration foam rolling (VFR) on damaged muscle shows greater improvement in muscle soreness and range of motion (ROM) compared with foam rolling (FR) without vibration. However, the effect of frequency in VFR on muscle soreness and loss of function caused by damaged muscles is unknown. The purpose of this study was to compare the acute effects of 90-s low-frequency (LF)- and high-frequency (HF)-VFR intervention on ROM, muscle soreness, muscle strength, and performance of eccentrically damaged muscle. Study participants were sedentary healthy adult volunteers (n = 28) who performed a bout of eccentric exercise of the knee extensors with the dominant leg and received 90-s LF-VFR or HF-VFR intervention of the quadriceps 48 h after the eccentric exercise. The dependent variables were measured before the eccentric exercise (baseline) and before (pre-intervention) and after VFR intervention (post-intervention) 48 h after the eccentric exercise. The results showed that both LF-VFR and HF-VFR similarly (p 〈 0.05) improved the knee flexion ROM (11.3 ± 7.2%), muscle soreness at palpation (-37.9 ± 17.2%), and countermovement jump height (12.4 ± 12.9%). It was concluded that it was not necessary to perform VFR with a high frequency to improve muscle soreness and function.
    Type of Medium: Online Resource
    ISSN: 1303-2968
    URL: Journal
    URL: Article
    DOI: 10.52082/jssm
    DOI: 10.52082/jssm.2022.112
    Language: English
    Publisher: Journal of Sports Science and Medicine
    Publication Date: 2022
    detail.hit.zdb_id: 2075564-8
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  • 2
    Online Resource
    Online Resource
    The Effect of Static Compression via Vibration Foam Rolling on Eccentrically Damaged Muscle
    MDPI AG ; 2022
    In:  International Journal of Environmental Research and Public Health Vol. 19, No. 3 ( 2022-02-05), p. 1823-
    Details
    In: International Journal of Environmental Research and Public Health, MDPI AG, Vol. 19, No. 3 ( 2022-02-05), p. 1823-
    Abstract: Previous research has shown that vibration foam rolling (VFR) on damaged muscle can result in improvements in muscle soreness and range of motion (ROM). Furthermore, static compression via VFR (i.e., VFR without rolling) can increase the ROM and decrease the muscle stiffness of non-damaged muscle. Therefore, it is likely that static compression via VFR on eccentrically damaged muscle can mitigate muscle soreness and the decrease in ROM, and the decrease in muscle strength. The purpose of this study was to investigate the acute effects of a 90 s bout of VFR applied as a static compression on an eccentrically damaged quadriceps muscle, measuring ROM, muscle soreness, muscle strength, and jump performance. This study was a single-arm repeated measure design. Study participants were sedentary healthy male volunteers (n = 14, 20.4 ± 0.8 years) who had not performed habitual exercise activities or any regular resistance training for at least 6 months before the experiment. All participants performed a bout of eccentric exercise of the knee extensors with the dominant leg and then received a 90 s bout of static compression via VFR of the quadriceps 48 h after the eccentric exercise. The knee flexion ROM, muscle soreness at palpation, and countermovement jump height were measured before the eccentric exercise (baseline), before (pre-intervention) and after the VFR intervention (post-intervention), and 48 h after the eccentric exercise. The results showed that the static compression via VFR significantly (p 〈 0.05) improved the knee flexion ROM (6.5 ± 4.8%, d = 0.76), muscle soreness at palpation (−10.7 ± 8.6 mm, d = −0.68), and countermovement jump height (15.6 ± 16.0%, d = 0.49). Therefore, it can be concluded that static compression via VFR can improve muscle soreness and function.
    Type of Medium: Online Resource
    ISSN: 1660-4601
    URL: Article
    DOI: 10.3390/ijerph19031823
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2175195-X
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  • 3
    Online Resource
    Online Resource
    Greater effects by performing a small number of eccentric contractions daily than a larger number of them once a week
    Wiley ; 2022
    In:  Scandinavian Journal of Medicine & Science in Sports Vol. 32, No. 11 ( 2022-11), p. 1602-1614
    Details
    In: Scandinavian Journal of Medicine & Science in Sports, Wiley, Vol. 32, No. 11 ( 2022-11), p. 1602-1614
    Abstract: Our previous study found that one maximal voluntary eccentric contraction (MVC‐ECC) performed daily for 5 days a week for 4 weeks increased MVC‐ECC, isometric (MVC‐ISO), and concentric contraction (MVC‐CON) torque of the elbow flexors more than 10%. The present study investigated the effects of six maximal voluntary eccentric contractions on the MVC torques and biceps brachii and brachialis muscle thickness (MT). Thirty‐six healthy young adults were placed to one of the three groups ( N  = 12 per group); the 6 × 1 group that performed one set of six contractions once a week, the 6 × 5 group that performed one set of six contractions a day for 5 days a week, and the 30 × 1 group that performed five sets of six contractions a day in a week. The training duration was 4 weeks for all groups, and changes in MVC‐ECC, MVC‐CON and MVC‐ISO torque, and MT before and after the 4‐week training were compared among the groups. The 6 × 1 group did not show significant changes in muscle strength and MT. Significant ( p   〈  0.05) increases in MVC‐ECC (13.5 ± 11.5%), MVC‐ISO (9.3 ± 5.5%), MVC‐CON torque (11.1 ± 7.4%) were evident for the 6 × 5 group only, and increases in MT were found for the 6 × 5 (10.4 ± 4.4%) and 30 × 1 (8.0 ± 5.8%) groups without a significant difference. These results suggest that performing a small number of eccentric contractions 5 days a week is more effective for increasing muscle strength than performing a larger volume of eccentric contractions once a week. However, it appears that training volume is a factor for muscle hypertrophy in a short‐term training.
    Type of Medium: Online Resource
    ISSN: 0905-7188 , 1600-0838
    URL: Issue
    URL: Article
    DOI: 10.1111/sms.v32.11
    DOI: 10.1111/sms.14220
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2025503-2
    SSG: 31
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  • 4
    Online Resource
    Online Resource
    Comparison Between High- and Low-Intensity Static Stretching Training Program on Active and Passive Properties of Plantar Flexors
    Frontiers Media SA ; 2021
    In:  Frontiers in Physiology Vol. 12 ( 2021-12-17)
    Details
    In: Frontiers in Physiology, Frontiers Media SA, Vol. 12 ( 2021-12-17)
    Abstract: The purpose of this study was to compare two static stretching (SS) training programs at high-intensity (HI-SS) and low-intensity (LI-SS) on passive and active properties of the plantar flexor muscles. Forty healthy young men were randomly allocated into three groups: HI-SS intervention group ( n = 14), LI-SS intervention group ( n = 13), and non-intervention control group ( n = 13). An 11-point numerical scale (0–10; none to very painful stretching) was used to determine SS intensity. HI-SS and LI-SS stretched at 6–7 and 0–1 intensities, respectively, both in 3 sets of 60 s, 3×/week, for 4 weeks. Dorsiflexion range of motion (ROM), gastrocnemius muscle stiffness, muscle strength, drop jump height, and muscle architecture were assessed before and after SS training program. The HI-SS group improved more than LI-SS in ROM (40 vs. 15%) and decreased muscle stiffness (−57 vs. −24%), while no significant change was observed for muscle strength, drop jump height, and muscle architecture in both groups. The control group presented no significant change in any variable. Performing HI-SS is more effective than LI-SS for increasing ROM and decreasing muscle stiffness of plantar flexor muscles following a 4-week training period in young men. However, SS may not increase muscle strength or hypertrophy, regardless of the stretching discomfort intensity.
    Type of Medium: Online Resource
    ISSN: 1664-042X
    URL: Article
    DOI: 10.3389/fphys.2021.796497
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2021
    detail.hit.zdb_id: 2564217-0
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  • 5
    Online Resource
    Online Resource
    Relationship between Eccentric-Exercise-Induced Loss in Muscle Function to Muscle Soreness and Tissue Hardness
    MDPI AG ; 2022
    In:  Healthcare Vol. 10, No. 1 ( 2022-01-04), p. 96-
    Details
    In: Healthcare, MDPI AG, Vol. 10, No. 1 ( 2022-01-04), p. 96-
    Abstract: It is well-known that unusual exercise, especially eccentric contraction (ECC), could cause delayed-onset muscle soreness. However, the factors related to the loss of muscle strength and range of motion (ROM) caused by eccentrically damaged muscle, such as increases in muscle soreness, tissue hardness, and pain threshold, have not been investigated in detail. Thus, this study was conducted to investigate the factors related to the loss of muscle strength and ROM caused by eccentrically damaged muscle in a large sample. Fifty-six sedentary healthy young male volunteers were instructed to perform 60 repetitions of ECC exercise. The outcome variables were measured before and 48 h after the ECC exercise. The results showed that a decrease in ROM was correlated to an increase in tissue hardness, whereas a decrease in muscle strength was correlated to an increase in muscle soreness. Our results suggested that tissue hardness must be controlled for ROM loss, and muscle soreness must be controlled for muscle-strength loss.
    Type of Medium: Online Resource
    ISSN: 2227-9032
    URL: Article
    DOI: 10.3390/healthcare10010096
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2721009-1
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  • 6
    Online Resource
    Online Resource
    Comparison between concentric-only, eccentric-only, and concentric–eccentric resistance training of the elbow flexors for their effects on muscle strength and hypertrophy
    Springer Science and Business Media LLC ; 2022
    In:  European Journal of Applied Physiology Vol. 122, No. 12 ( 2022-12), p. 2607-2614
    Details
    In: European Journal of Applied Physiology, Springer Science and Business Media LLC, Vol. 122, No. 12 ( 2022-12), p. 2607-2614
    Type of Medium: Online Resource
    ISSN: 1439-6319 , 1439-6327
    URL: Article
    DOI: 10.1007/s00421-022-05035-w
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2022
    detail.hit.zdb_id: 1459054-2
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  • 7
    Online Resource
    Online Resource
    Weekly minimum frequency of one maximal eccentric contraction to increase muscle strength of the elbow flexors
    Springer Science and Business Media LLC ; 2023
    In:  European Journal of Applied Physiology
    Details
    In: European Journal of Applied Physiology, Springer Science and Business Media LLC
    Type of Medium: Online Resource
    ISSN: 1439-6319 , 1439-6327
    URL: Article
    DOI: 10.1007/s00421-023-05281-6
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 1459054-2
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  • 8
    Online Resource
    Online Resource
    Comparison of Isolated or Combined Static Stretching and Foam Rolling on Knee Extensors’ Function
    Journal of Sports Science and Medicine ; 2023
    In:  Journal of Sports Science and Medicine
    Details
    In: Journal of Sports Science and Medicine, Journal of Sports Science and Medicine
    Abstract: Static stretching (SS), foam rolling (FR), and a combination of both are used as warm-ups for sports and training. However, no reports have compared or examined the warm-up effects of short-term interventions (i.e., 30-s). Therefore, this study was designed to compare and examine the effects of short-term SS, FR, and SS+FR on knee extensors. The dominant knee extensors of 14 male university students (22.0 ± 1.3 years old) were tested. Five conditions were randomized: 60-s SS, 60-s FR, 30-s SS+ 30-s FR, 30-s SS, and 30-s FR to examine differences in intervention method, duration, and combined. The measures were knee flexion range of motion (ROM), pain pressure threshold (PPT), tissue hardness, maximum voluntary contraction-isometric (MVC-ISO), and MVC-concentric (MVC-CON) torques, measured before and after the intervention. Knee flexion ROM (d = 0.40, d = 0.59, d = 0.54, d = 0.59, d = 0.52 respectively) and PPT (d = 0.77, d = 0.60, d = 0.90, d = 0.74, d = 0.52, respectively) were significantly increased (p 〈 0.01), and tissue hardness (d = -0.79, d = -0.63, d = -0.53, d = -0.59, d = -0.72, respectively) was significantly decreased (p 〈 0.01) in all conditions. However, MVC-ISO decreased significantly (p 〈 0.01) in the 60-s SS and 30-s SS conditions but did not affect MVC-CON in all conditions. The results of this study revealed that SS, FR, and SS+FR interventions for a short-term as a warm-up before exercise were effective in increasing ROM, PPT, and decreasing tissue hardness. However, SS intervention with more than 30-s on the knee extensors decreased muscle strength, so short-term FR intervention is recommended when the goal is to increase ROM while maintaining both MVC-ISO and MVC-CON torques. Similarly, a short-term FR intervention after a short-term SS can eliminate the effect of strength impairments.
    Type of Medium: Online Resource
    ISSN: 1303-2968
    URL: Journal
    URL: Article
    DOI: 10.52082/jssm
    DOI: 10.52082/jssm.2023.388
    Language: English
    Publisher: Journal of Sports Science and Medicine
    Publication Date: 2023
    detail.hit.zdb_id: 2075564-8
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  • 9
    Online Resource
    Online Resource
    Less fatiguability in eccentric than concentric repetitive maximal muscle contractions
    Springer Science and Business Media LLC ; 2023
    In:  European Journal of Applied Physiology Vol. 123, No. 7 ( 2023-07), p. 1553-1565
    Details
    In: European Journal of Applied Physiology, Springer Science and Business Media LLC, Vol. 123, No. 7 ( 2023-07), p. 1553-1565
    Type of Medium: Online Resource
    ISSN: 1439-6319 , 1439-6327
    URL: Article
    DOI: 10.1007/s00421-023-05178-4
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 1459054-2
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  • 10
    Online Resource
    Online Resource
    Comparison of Isolated or Combined Static Stretching and Foam Rolling on Knee Extensors’ Function
    Journal of Sports Science and Medicine ; 2023
    In:  Journal of Sports Science and Medicine
    Details
    In: Journal of Sports Science and Medicine, Journal of Sports Science and Medicine
    Abstract: Static stretching (SS), foam rolling (FR), and a combination of both are used as warm-ups for sports and training. However, no reports have compared or examined the warm-up effects of short-term interventions (i.e., 30-s). Therefore, this study was designed to compare and examine the effects of short-term SS, FR, and SS+FR on knee extensors. The dominant knee extensors of 14 male university students (22.0 ± 1.3 years old) were tested. Five conditions were randomized: 60-s SS, 60-s FR, 30-s SS+ 30-s FR, 30-s SS, and 30-s FR to examine differences in intervention method, duration, and combined. The measures were knee flexion range of motion (ROM), pain pressure threshold (PPT), tissue hardness, maximum voluntary contraction-isometric (MVC-ISO), and MVC-concentric (MVC-CON) torques, measured before and after the intervention. Knee flexion ROM (d = 0.40, d = 0.59, d = 0.54, d = 0.59, d = 0.52 respectively) and PPT (d = 0.77, d = 0.60, d = 0.90, d = 0.74, d = 0.52, respectively) were significantly increased (p 〈 0.01), and tissue hardness (d = -0.79, d = -0.63, d = -0.53, d = -0.59, d = -0.72, respectively) was significantly decreased (p 〈 0.01) in all conditions. However, MVC-ISO decreased significantly (p 〈 0.01) in the 60-s SS and 30-s SS conditions but did not affect MVC-CON in all conditions. The results of this study revealed that SS, FR, and SS+FR interventions for a short-term as a warm-up before exercise were effective in increasing ROM, PPT, and decreasing tissue hardness. However, SS intervention with more than 30-s on the knee extensors decreased muscle strength, so short-term FR intervention is recommended when the goal is to increase ROM while maintaining both MVC-ISO and MVC-CON torques. Similarly, a short-term FR intervention after a short-term SS can eliminate the effect of strength impairments.
    Type of Medium: Online Resource
    ISSN: 1303-2968
    URL: Journal
    URL: Article
    DOI: 10.52082/jssm
    DOI: 10.52082/jssm.2023.389
    Language: English
    Publisher: Journal of Sports Science and Medicine
    Publication Date: 2023
    detail.hit.zdb_id: 2075564-8
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