Load-velocity Profiles Change after Training Programs with Different Set Configurations

2020 ◽  
Author(s):  
Eliseo Iglesias-Soler ◽  
Jessica Rial-Vázquez ◽  
Daniel Boullosa ◽  
Xian Mayo ◽  
Juan Fariñas ◽  
...  
Keyword(s):  
Bench Press ◽  
Controlled Trial ◽  
Maximum Load ◽  
Control Groups ◽  
Physically Active ◽  
Randomized Controlled ◽  
Velocity Relationship ◽  
Before And After ◽  
Post Test ◽  
Relationship Of

AbstractThis study explored the changes in load-velocity relationship of bench press and parallel squat exercises following two programs differing in the set configuration. A randomized controlled trial was carried out in a sample of 39 physically active individuals. Participants were assigned to rest redistribution set configuration, traditional set configuration, or control groups. Over 5 weeks, the experimental groups completed 10 sessions with the 10 repetitions maximum load of both exercises. Rest redistribution sets consisted in 16 sets of 2 repetitions with 60 s of rest between sets, and 5 min between exercises, whereas traditional sets entailed 4 sets of 8 repetitions with 5 min of rest between sets and exercises. The load-velocity relationships of both exercises were obtained before and after the training period. For bench press, an increase of the velocity axis intercept, and a decrease of the slope at post-test were observed in both rest redistribution (p<0.001, G=1.264; p<0.001; G=0.997) and traditional set (p=0.01, G=0.654; p=0.001; G=0.593) groups. For squat, the slope decreased (p<0.001; G=0.588) and the velocity axis intercept increased (p<0.001; G=0.727) only in the rest redistribution group. These results show that rest redistribution sets were particularly efficient for inducing changes in the load-velocity relationship.

Reliability of the Load–Velocity Relationship Obtained Through Linear and Polynomial Regression Models to Predict the 1-Repetition Maximum Load

2018 ◽  
Vol 34 (3) ◽  
pp. 184-190 ◽  
Author(s):  
Francisco Luis Pestaña-Melero ◽  
G. Gregory Haff ◽  
Francisco Javier Rojas ◽  
Alejandro Pérez-Castilla ◽  
Amador García-Ramos
Keyword(s):  
Coefficient Of Variation ◽  
Regression Models ◽  
Bench Press ◽  
Polynomial Regression ◽  
Maximum Load ◽  
Repetition Maximum ◽  
Velocity Relationship ◽  
Polynomial Regression Models ◽  
The Individual ◽  
Relationship Of

This study aimed to compare the between-session reliability of the load–velocity relationship between (1) linear versus polynomial regression models, (2) concentric-only versus eccentric–concentric bench press variants, as well as (3) the within-participants versus the between-participants variability of the velocity attained at each percentage of the 1-repetition maximum. The load–velocity relationship of 30 men (age: 21.2 [3.8] y; height: 1.78 [0.07] m, body mass: 72.3 [7.3] kg; bench press 1-repetition maximum: 78.8 [13.2] kg) were evaluated by means of linear and polynomial regression models in the concentric-only and eccentric–concentric bench press variants in a Smith machine. Two sessions were performed with each bench press variant. The main findings were: (1) first-order polynomials (coefficient of variation: 4.39%–4.70%) provided the load–velocity relationship with higher reliability than the second-order polynomials (coefficient of variation: 4.68%–5.04%); (2) the reliability of the load–velocity relationship did not differ between the concentric-only and eccentric–concentric bench press variants; and (3) the within-participants variability of the velocity attained at each percentage of the 1-repetition maximum was markedly lower than the between-participants variability. Taken together, these results highlight that, regardless of the bench press variant considered, the individual determination of the load–velocity relationship by a linear regression model could be recommended to monitor and prescribe the relative load in the Smith machine bench press exercise.

Training Program With Outdoor Fitness Equipment in Parks Offers No Substantial Benefits for Functional Fitness in Active Seniors: A Randomized Controlled Trial

2020 ◽  
Vol 28 (6) ◽  
pp. 828-835
Author(s):  
Ya-Chen Liu ◽  
Wen-Wen Yang ◽  
I-Yao Fang ◽  
Hope Li-Ling Pan ◽  
Wei-Han Chen ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Quantitative Study ◽  
Controlled Trial ◽  
Control Group ◽  
Functional Fitness ◽  
Control Groups ◽  
Randomized Controlled ◽  
Cardiorespiratory Function ◽  
Before And After ◽  
And Control

Outdoor fitness equipment (OFE) is installed in parks to promote health, particularly among seniors. However, no quantitative study has investigated its effectiveness. Therefore, this study aimed to examine the effectiveness of 12 weeks of OFE training on functional fitness in seniors. Forty-two active seniors were recruited and randomly assigned into OFE and control groups. The OFE group underwent 12 weeks of training using popular OFE for cardiorespiratory function, flexibility, and strength, whereas participants in the control group were asked to maintain their previous lifestyles. The senior fitness test was assessed before and after the 12-week period. Unexpectedly, the results showed no significant improvement within or between the groups after the 12-week training in all parameters (p > .05). In conclusion, the 12-week OFE training failed to enhance functional fitness among active seniors. Potential reasons for the limited training effects might be lack of resistance components and diversity of the OFE design and installation.

scholarly journals The effect of rTMS in the management of pain associated with CRPS

2020 ◽  
Vol 11 (1) ◽  
pp. 363-370
Author(s):  
Min Cheol Chang ◽  
Sang Gyu Kwak ◽  
Donghwi Park
Keyword(s):  
Repetitive Transcranial Magnetic Stimulation ◽  
Controlled Trial ◽  
Meta Analysis ◽  
Pain Syndrome ◽  
Treatment Session ◽  
Cochrane Library ◽  
Exclusion Criteria ◽  
Analgesic Effects ◽  
Randomized Controlled ◽  
Before And After

AbstractBackgroundTherapeutic management of pain in patients with complex regional pain syndrome (CRPS) is challenging. Repetitive transcranial magnetic stimulation (rTMS) has analgesic effects on several types of pain. However, its effect on CRPS has not been elucidated clearly. Therefore, we conducted a meta-analysis of the available clinical studies on rTMS treatment in patients with CRPS.Materials and methodsA comprehensive literature search was conducted using the PubMed, EMBASE, Cochrane Library, and SCOPUS databases. We included studies published up to February 09, 2020, that fulfilled our inclusion and exclusion criteria. Data regarding measurement of pain using the visual analog scale before and after rTMS treatment were collected to perform the meta-analysis. The meta-analysis was performed using Comprehensive Meta-analysis Version 2.ResultsA total of three studies (one randomized controlled trial and two prospective observational studies) involving 41 patients were included in this meta-analysis. No significant reduction in pain was observed immediately after one rTMS treatment session or immediately after the entire schedule of rTMS treatment sessions (5 or 10 sessions; P > 0.05). However, pain significantly reduced 1 week after the entire schedule of rTMS sessions (P < 0.001).ConclusionrTMS appears to have a functional analgesic effect in patients with CRPS.

scholarly journals Implementation of enhanced recovery after surgery in gynecological operations: a randomized controlled trial

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Amr Nady Abdelrazik ◽  
Ahmad Sameer Sanad
Keyword(s):  
Hospital Stay ◽  
Enhanced Recovery ◽  
Enhanced Recovery After Surgery ◽  
Controlled Trial ◽  
Length Of Hospital Stay ◽  
Gynecologic Surgery ◽  
Complication Rates ◽  
Control Groups ◽  
Analog Scale ◽  
Randomized Controlled

Abstract Background To investigate the effects of enhanced recovery after surgery (ERAS) in patients undergoing gynecologic surgery on length of hospital stay, pain management, and complication rate. Results The length of hospital stay was reduced in ERAS groups when compared with the control groups (3.46 days vs 2.28 days; P < 0.0001; CI − 1.5767 to − 0.7833 for laparotomy groups and 2.18 vs 1.76 days; P = 0.0115; CI − 0.7439 to − 0.0961 for laparoscopy groups respectively). Intraoperative fluid use was reduced in both ERAS groups compared to the two control groups (934 ± 245 ml and 832 ± 197 ml vs 1747 ± 257 ml and 1459 ± 304 respectively; P < 0.0001) and postoperative fluid use was also less in the ERAS groups compared to the control groups (1606 ± 607 ml and 1210 ± 324 ml vs 2682 ± 396 ml and 1469 ± 315 ml respectively; P < 0.0001). Pain score using visual analog scale (VAS) on postoperative day 0 was 4.8 ± 1.4 and 4.1 ± 1.2 (P = 0.0066) for both laparotomy control and ERAS groups respectively, while in the laparoscopy groups, VAS was 3.8 ± 1.1 and 3.2 ± 0.9 (P = 0.0024) in control and ERAS groups respectively. Conclusion Implementation of ERAS protocols in gynecologic surgery was associated with significant reduction in length of hospital stay, associated with decrease intravenous fluids used and comparable pain control without increase in complication rates.

scholarly journals Effects of the Suboccipital Muscle Inhibition Technique on the Range of Motion of the Ankle Joint and Balance According to Its Application Duration: A Randomized Controlled Trial

Healthcare ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 646
Author(s):  
Han-Sol Kang ◽  
Hyung-Wook Kwon ◽  
Di-gud Kim ◽  
Kwang-Rak Park ◽  
Suk-Chan Hahm ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Range Of Motion ◽  
Ankle Joint ◽  
Controlled Trial ◽  
Balance Test ◽  
Randomized Controlled ◽  
Active Range Of Motion ◽  
Before And After ◽  
Muscle Inhibition ◽  
Inhibition Technique

This study aimed to investigate the effects of suboccipital muscle inhibition technique (SMIT) on active range of motion (AROM) of the ankle joint, lunge angle (LA), and balance in healthy adults, according to the duration of its application. A total of 80 participants were randomly allocated to the 4-min suboccipital muscle inhibition (SMI) group (SMI_4M, n = 20), 8-min SMI group (n = 20), 4-min sham-SMI (SSMI) group (n = 20), and 8-min SSMI group (n = 20). Accordingly, the SMIT and sham SMIT were applied for 4 min or 8 min in the respective groups. AROM of dorsiflexion and LA were assessed, and a single leg balance test (SLBT) was performed before and after the intervention. AROM (4 min, p < 0.001; 8 min, p < 0.001), LA (4 min, p < 0.001; 8 min, p < 0.001), and SLBT (4 min, p < 0.001; 8 min, p < 0.001) significantly improved after SMI application. Compared with the SSMI group, the SMI group showed a significant increase in AROM (p < 0.001), LA (p < 0.001), and SLBT (p < 0.001). Except for SLBT (p = 0.016), there were no significant interactions between intervention and application duration. The results suggest that the SMIT, at durations of both 4 and 8 min, could be effective tools for improving AROM, LA, and balance.

scholarly journals Sprint Kayaking Performance Enhancement by Isometric Strength Training Inclusion: A Randomized Controlled Trial

Sports ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 16
Author(s):  
Danny Lum ◽  
Tiago M. Barbosa ◽  
Govindasamy Balasekaran
Keyword(s):  
Strength Training ◽  
Bench Press ◽  
Performance Enhancement ◽  
Controlled Trial ◽  
Time Trial ◽  
Isometric Strength ◽  
Sports Performance ◽  
Knee Angle ◽  
Randomized Controlled ◽  
Main Effect

Performing isometric strength training (IST) can enhance various sports performance. This study compared the effects of including IST on sprint kayaking performance as compared to traditional strength training. Twenty sprint kayaking athletes (age 22 ± 4 year, stature 1.71 ± 0.09 m, body mass 72.0 ± 11.4 kg) performed a 200-m kayak ergometer time trial (200mTT), isometric squat (IsoSqT), isometric bench press (IsoPress) and isometric prone bench pull (IsoPull) during the pre- and post-tests. Athletes were randomly assigned to either traditional strength training (TRAD) or IST group. Both groups performed a similar strength training program twice a week for six weeks. However, half the volume for squat, bench press and prone bench pull were replaced by IsoSqT, IsoPress and IsoPull, respectively, for the IST group. IsoSqT was performed at 90° knee angle, while IsoPress and IsoPull were performed at 90° and 120° elbow angles, respectively. Each isometric contraction was performed with maximum intensity and sustained for three seconds. A significant main time effect was observed for 200mTT (p < 0.001, ƞ2p = 0.68) and all isometric strength measures (p = 0.001–0.032, ƞ2p = 0.24–0.76) except rate of force development at 0–90 ms (RFD90) obtained from IsoSqT120 and IsoPress90. A group main effect was observed in RFD90 obtained from IsoSqT120 and IsoPull120 (p = 0.003–0.004, ƞ2p = 0.37–0.39). Time x Group interaction was observed for 200mTT (p = 0.027, ƞ2p = 0.68), peak force obtained from IsoSqT90, IsoPress90, and IsoPull120 (p = 0.004–0.006, ƞ2p = 0.36–0.38) and RFD90 obtained from IsoSqT120 and IsoPull120 (p = 0.012–0.015, ƞ2p = 0.28–0.30). Inclusion of IST resulted in greater improvement for sprint kayaking and strength performances then TRAD alone.

The effectiveness of emotional freedom techniques (EFT) on depression of postmenopausal women: a randomized controlled trial

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Asieh Mehdipour ◽  
Parvin Abedi ◽  
Somayeh Ansari ◽  
Maryam Dastoorpoor
Keyword(s):  
Randomized Controlled Trial ◽  
Postmenopausal Women ◽  
Controlled Trial ◽  
Intervention Group ◽  
Control Group ◽  
Randomized Controlled ◽  
Moderate Depression ◽  
Before And After ◽  
The Mean ◽  
And Control

Abstract Objectives Postmenopausal women are at greater risk of depression. Depression may negatively affect the quality of life of women. An emotional freedom technique (EFT) is an evidence-based therapy combining cognitive and exposure components with acupressure. This study aimed to evaluate the effect of EFT on depression in postmenopausal women. Methods This was a randomized controlled trial in which 88 women with mild to moderate depression recruited from a menopausal clinic in Ahvaz, Iran, and randomly assigned into two groups of EFT (n=44) and control for sham therapy (n=44). Women in the EFT group received two sessions of training and asked to continue EFT for 8 weeks, one time per day. The Beck Depression Inventory (BDI2) completed by women before and after the intervention. The control group received training on sham acupressure points similar to the intervention group. Data collected using a demographic and BDI2. Women requested to complete the BDI2 before and after the intervention. The independent t-test, chi-square, and ANCOVA were used to analyze data. Results The mean depression score in the intervention group reduced from 20.93 ± 4.6 to 10.96 ± 4.38 in comparison to the control group that reduced from 19.18 ± 2.79 to 17.01 ± 6.05 after intervention (p=0.001). After the 8 week intervention, the frequency of moderate depression decreased from 56.8 to 9.35% in the intervention and from 50 to 29.5% in the control group. In total, 63.4 and 34.15% in the intervention and control groups were free of depression respectively after the intervention (p<0.001). Conclusions The results of this study showed that using EFT for 8 weeks could significantly reduce the mean score of depression in postmenopausal women. Using this method in public health centers for postmenopausal women is recommended.

scholarly journals The Effectiveness of Auditory Stimuli from Murottal Quran to Improve Comfort and Weight in Low Birth Weight Infants: Randomized Controlled Trial

Jurnal NERS ◽  
2019 ◽  
Vol 14 (1) ◽  
pp. 111
Author(s):  
Desriati Devi ◽  
Yeni Rustina ◽  
Defi Efendi
Keyword(s):  
Randomized Controlled Trial ◽  
Birth Weight ◽  
Low Birth Weight ◽  
Controlled Trial ◽  
Auditory Stimuli ◽  
Control Groups ◽  
Low Birth Weight Infants ◽  
Randomized Controlled ◽  
Significant Difference ◽  
And Control

Introduction: Low birth weight (LBW) infants who have been hospitalized are exposed to various conditions that provoke discomfort, which could trigger a stress response and growth disorders. This study aimed to identify the effects of auditory stimuli from Murottal Quran when it comes to the comfort and weight of LBW infants.Methods: This study used a clinical randomized controlled trial design involving 52 low birth weight infants. The infants were randomly assigned to either the intervention group (n=26) or the control (n=26). The intervention of Murottal Quran was given using a speaker 4 times a day for 20 minutes every 3 hours. This intervention was conducted for three days.Results: The results of this study show that there is a significant difference in the comfort of  low birth weight infants after Murottal Qur’an on the first, second, and third days between the intervention and control groups (p=0.014; <0.001; <0.001). There was no significant difference in the weight between the intervention and control groups in the first, second, and third days (p=0.481; 0.481; 0.464).Conclusion: The auditory stimuli of Murottal Quran can help to improve the comfort level of low birth weight infants during hospitalization. It can therefore be used as a supportive therapy to facilitate low birth weight infant and premature infant development.

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