The most frequent injuries among sports orienteers are the ankle injuries. The one of the most effective means to prevent the ankle injuries and recurrent ankle injuries is balance and stability development. The aim of this study is to find out the most effective method to develop static stability in the previously injured ankle for orienteers: osteopathic treatment of the ankle and subtalar joints or balance exercises, or the combination of osteopathic treatment of the ankle and subtalar joints and balance exercises. The effectiveness analysis of the intervention methods was conducted with the use of Digital Balance Analyzer (DBA) for the assessment of statical balance. 36 orienteers (12 to 18 years old) were randomized in three groups to an intervention, after being assessed at baseline and then reassessed one week later. Static balance improvements are only when using osteopathy and ankle joints subtalar somatic dysfunction correction together with balance exercises. Separate osteopathy or balance exercises will not give results as effective as the combination of these two effects.

The ankle joints are neutral at heel strike and then the plantar flexes to bring the forefoot to the ground. Based on Reid's (2009) gait analysis it is evident that foot pronation should be viewed as a whole body movement, since it affects muscles and structures located not only in the foot area. The aim of the research was to evaluate the effect of the ankle functional block correction and strengthening exercises on orienteer running technique. Methods: 36 orienteers (12 to 18 years old) were randomized in three groups to an intervention, movement video analysis (Cswing program), osteopathic testing and correction of the somatic dysfunction of the ankle, quasi-experiment, mathematical statistics were conducted. The results partly confirmed that by releasing the ankle joint functional block disposal and applying strengthening exercises orienteer running technique - foot touchdown parameters were improved.

Local vibrostimulation (further in text - LV) is innovation as a part of training method that helps athletes to regain the power and get ready for next training faster. There are many discussions about how to increase moving speed in rowers. Many scientists research the possibilities of increasing moving speed in this sport. The following methods were used in the study: tests – Concept-2, LV manipulations, electromyography and mathematical statistics. The electromyography was made with Biometric LTD. LV manipulations were done to the muscles erector spinae, latisimus dorsi, teres major, teres minor, trapezius, infraspinatus, deltoideus, slenius capitis, triceps brachii, gluteus maximus, semitendinosus, biceps femoris, semimembranosus, castrocnemius, tendo calcaneus, rectus femoris, vastus lateralis, tensor fascia latae, vastus medialis, sarterius, ligamentum patellae, tibialis anterior, rectus abdominis, pectoralis major and biceps brachii. We using 100 Hz frequency, 2 – 4 mm amplitude and different pressure on the muscles. The total LV application time was 5 to 20  min. The obtained data were processed using mathematical statistics. The results: having stated the result difference before LV and after it. The results testify significant improvement of Concept-2 tests results and electromyography results, what is showed by the difference of the mean results. Comparing the results of the rowers of EG and CG they have differences in the left side muscle latissimus dorsi after the t-test where p>0.05, but stating the percentage of the mean result difference of this muscle it was found out that p>0.05 what also shows significant changes in the muscle biopotential (mV).

Previous efforts to depict sport development opportunities resulted in a sport development metaphor, the participation pyramid (Sotiriadou, Shilbury & Quick, 2008).  The base of the sport development metaphor represents the relationship between mass and elite participation (Shilbury, Sotiriadou & Green, 2008) and medals won during the Olympic Games (Sotiriadou, De Bosscher, 2013). The most important international competitions may, therefore, best represent overall sport systems (Sparvero, Chalip, & Green, 2008), but competition opportunities for athletes are the factor contributing to elite success. The aim of this study is to determine the relationship between mass and elite orienteers’ participation and elite orienteers’ performances at the most important national and international orienteering competitions. Methods: the official most important orienteering national and international competition results from 2001 to 2016 were obtained from the websites of each annual organizing committee, linked to the International Orienteering Federation website and mathematical statistics was conducted. The results confirmed a strong, medium and weak relationship between mass and elite orienteers’ participation and elite orienteers’ performances in the most important national and international orienteering competitions. Orienteers’ movement up the participation pyramid is not automatic.

It is much spoken about and researched how to increase the speed of moving in rowing. Many scientists have researched the technical aspects in rowing. Most part of researches is based on oxygen maximal consumption and other physiological changes during a load. Although there are various researches, stating the technical nuances of leg and arm work, comparatively little attention is paid to the role of the arm work. The cycle length in different distances and having different water flow – before the wind, against the wind and with the side wind is stated. The aim was to research one stroke technical nuances in rowing looking for stroke rate from 24 till 34. A pilot study was carried out. One Lithuanian Olympic team rower was participated this pilot study and he was tested in different stroke rate. The following methods were used in study: test exercise, video analysis with KinezioVideoAnalyzer 3.0. and mathematical statistics. The results: having stated the result average of stroke rate was 28,6 and speed of stroke was 0,82 sec. Conclusions: the obtained data from rower show small differences changing stroke rate.