THE EFFECT OF A SINGLE LEG CLOSED CHAIN RESISTANCE TRAINING PROGRAM ON GAIT SPEED: A CASE STUDY.

2014 ◽  
Vol 25 (4) ◽  
pp. 129
Author(s):  
Glenn Irion ◽  
Alan Bigbee ◽  
Olivia Drew ◽  
Kasey Hamric
Sports ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 121
Author(s):  
Clifton Holmes ◽  
Stefanie Wind ◽  
Michael Esco

The purpose of this case study was to evaluate the response in heart rate variability via the parasympathetically-mediated metric of the log-transformed root mean square of successive R-R interval differences (lnRMSSD) to weekly variations in total volume-load (TVL) during an 18-week periodized strength training program in a competitive collegiate hockey athlete. The program consisted of three 60–90 min full-body exercise sessions per week with at least 24-h of rest between each session. Daily lnRMSSD measurements were taken immediately after waking using a validated smartphone application and the pulse-wave finger sensor. The weekly lnRMSSD values were calculated as the mean (lnRMSSDMEAN) and the coefficient of variation (lnRMSSDCV). A Pearson’s bivariate correlation of lnRMSSDMEAN and TVL revealed no statistically significant correlation between the two variables; TVL (r = −0.105, p = 0.678). However, significant correlations were found between lnRMSSDCV and both total load (TL) (r = −0.591, p = 0.013) and total volume (TV) (r = 0.765, p < 0.001). Additionally, weekly ratings of perceived exertion (RPE) mean values were statistically significantly correlated to TVL, r = 0.853, p < 0.001. It was concluded that lnRMSSDCV increased or decreased proportionally to an increase or decrease in TVL during the periodized resistance training program with TV being the strongest, independent indicator of these changes.


Author(s):  
Ana Victoria Costa Freitas ◽  
Inês Amanda Streit ◽  
Josefina Bertoli ◽  
Kayth Andrade Nascimento ◽  
Maria Carolina Oliveira de Sá ◽  
...  

2017 ◽  
Vol 36 (12) ◽  
pp. 1331-1339 ◽  
Author(s):  
Alejandro Pérez-Castilla ◽  
Amador García-Ramos ◽  
Paulino Padial ◽  
Antonio J. Morales-Artacho ◽  
Belén Feriche

2021 ◽  
Author(s):  
Gabriela Souza de Vasconcelos ◽  
Guilherme Silva Nunes ◽  
Christian John Barton ◽  
Raquel Fantinelli Munhoz ◽  
Maria Eduarda Chinotti Batista da Silva ◽  
...  

Abstract Background: Strong evidence supports the proximal combined with quadriceps strengthening for patellofemoral pain (PFP) rehabilitation. However, most reported rehabilitation programs do not follow specific exercise prescription recommendations or do not provide adequate details for replication in clinical practice. Furthermore, people with PFP have power deficits in hip and knee muscles and remains unknown whether the addition of power exercises would result in superior or more consistent outcomes. Therefore, this study is designed to verify whether the benefits of a rehabilitation program addressing proximal and knee muscles composed by power and strength exercises are greater than those of a program composed by strength exercises only. Method: This study will be a randomized controlled trial, that will be conducted at university facilities. A minimum of 74 people with PFP between the ages of 18 and 45 years will be included. The experimental group will engage in a 12-week resistance training program focusing on proximal and knee muscles using power and strength exercises. The control group will engage in a 12-week resistance training program focusing on proximal and knee muscles using strength exercises only. Primary outcomes will be pain intensity and physical function; and secondary outcomes will be kinesiophobia, self-reported improvement, quality of life, peak hip and knee torque, and hip and knee rate of force development. The primary outcomes will be evaluated at baseline, and after six weeks, twelve weeks, three months, six months and one year. The secondary outcomes will be evaluated at baseline and immediately after the interventions. Therapists and participants will not be blinded to group allocation.Discussion: This randomized clinical trial will investigate if adding power exercises to a progressive resistance training may lead to more consistent outcomes for PFP rehabilitation. The study will provide additional knowledge to support rehabilitation programs for people with PFP.Trial registration: ClinicalTrials.gov NCT 03985254. Registered on 26 August 2019.


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