Tag: Lechosław B. Dworak

Biomechanical analysis of two-point alternate crutch gait – comparison with standard gait

Lechosław B. Dworak, Michał Murawa, Jacek Mączyński

Lechosław B. Dworak, Michał Murawa, Jacek Mączyński – Biomechanical analysis of two-point alternate crutch gait – comparison with standard gait. Fizjoterapia Polska 2006; 6(4); 310-316

Abstract
Background. This paper presents the results of a biomechanical investigation of two-point alternate crutch gait by comparing selected parameters of the crutch-assisted gait and standard gait as well as seeking to determine the efficacy of unloading in crutch-assisted gait. Material and methods. 7 healthy physiotherapists participated in the experiment. Some dynamic parameters of simulated two-point alternate crutch-assisted gait and standard gait were measured using force plates (Kistler) and video-recording. Maximum and average values of ground reaction forces (GRF) as well as indices of asymmetry were calculated for both gaits. Results. Maximum values of the vertical component of the GRF (Rz-p i Rz-I) were 13 and 15%, respectively, lower during crutch gait compared to standard gait. The difference increased to around 20% for the mean values of the <Rz> index. The mean values of the remaining horizontal components of the GRF (<Ry>i <Rx>) were 32% (<Ryh-l>) and as much as 60% (<Rx-p>) lower during crutch gait. The mean values of all GRF components during crutch-assisted gait were around 25% of the corresponding values observed during standard gait. The vast majority of the asymmetry indices assumed higher values for the crutch gait. Conclusions. The analysis shows that during two-point alternative crutch gait a patient gets a great unloading of the lower limbs (1/5 of the BM). Simultaneously upper limbs get considerable overloading.

Key words:
locomotion, crutches, unloading, ground reaction forces, asymmetry

Invalid download ID. Pobierz bezpłatnie artykuł w j. angielskim

Proposal for a rehabilitation regimen for patients after posterior cruciate ligament reconstruction surgery. A model of biomechanical study ofthe rehabilitation process

Przemysław Lisiński, Agnieszka Gronek, Włodzimierz Samborski, Lechosław B. Dworak

Przemysław Lisiński, Agnieszka Gronek, Włodzimierz Samborski, Lechosław B. Dworak – Proposal for a rehabilitation regimen for patients after posterior cruciate ligament reconstruction surgery. A model of biomechanical study ofthe rehabilitation process. Fizjoterapia Polska 2010; 10(1); 1-11

Abstract
Background. Few rehabilitation problems raise so much controversy as the timing of rehabilitation and the choice of rehabilitation techniąues in patients following posterior cruciate ligament (PCL) reconstruction. PCL damage occurs in almost 37% of injuries to the knee joint. PCL plays a significant role in stabilising the knee joint. As the signs and symptoms of PCL damage are not so clear-cut as in injuries of other ligaments, a correct diagnosis and institution of treatment are often delayed. A key problem in rehabilitation of these patients is the need to protect the graft. Accordingly all rehabilitation procedures should be carefully supervised. Since there are few available publications concerned with the rehabilitation of patients following PCL surgery, the authors decided to present their own model of rehabilitation. The key elements of this scheme, such as the timing and choice of diagnostic and therapeutic procedures are compared to other methodologies presented in the literaturę.Fuli recovery reąuires a long period of rehabilitation that is dwided into several stages. Ultimately the fuli rangę ofmovement and appropriate muscle strength are restored, and the patient regains fuli motor control thanks to the restoration of proprioception. The authors propose a model of biomechanical investigations enabling objective evaluation ofthe rehabilitation process following PCL reconstruction surgery.
Key words:
posterior cruciate ligament, trauma, reconstruction, physiotherapy, biomechanical investigations
Invalid download ID. Pobierz bezpłatnie artykuł w j. angielskim