Browsing by Author "Casanova, Jorge"
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- Avaliação qualitativa de percursos pedestres em espaços de montanha: o projeto trails4healthPublication . Santos, Catarina C.; Casanova, Natalina; Casanova, Jorge; Bragada, José A.; Bartolomeu, Raúl Filipe; Costa, M.J.Foi objetivo deste estudo analisar e avaliar qualitativamente o percurso pedestre do Vale Glaciar do Zêzere. A amostra foi constituída por vinte e nove sujeitos, vinte homens e nove mulheres (idade: 28,04 ± 10,79 anos, estatura: 1,73 ± 0,09 m, massa corporal: 69,59 ± 11,00 kg) que percorreram o trilho linear com 9053 m de distância. A velocidade de caminhada foi monitorizada e mantida constante a 5 km/h com recurso a um dispositivo GPS (Fenix 5, Garmin, USA). Para a avaliação do percurso foi utilizada uma ficha de avaliação qualitativa de percursos pedestres que avalia do ponto de vista qualitativo os seguintes domínios: drenagem, perfil, pontes, escadas, vegetação, proteção lateral/vertical, solo e sinalização. As classificações foram obtidas por meio de uma escala qualitativa de 1 a 5, sendo que 1 representa “sem manutenção (0% do percurso) ” e 5 “manutenção muito boa (100% do percurso). Os resultados obtidos variam entre “sem manutenção (0% do percurso) ”, “pouca manutenção (25% do percurso) ” e “manutenção adequada (50% do percurso). A principal conclusão assenta numa necessidade de reestruturação e manutenção do percurso pedestre do Vale Glaciar do Zêzere.
- Can lab and field testing be complementary in defning physiological effort through the Serra da Estrela routes?Publication . Bartolomeu, Raúl Filipe; Bragada, José A.; Casanova, Natalina; Casanova, Jorge; Costa, M.J.The current classification of the hiking trails using an agreement between lab and eld test is inexistent. The aim of this study was to characterize a single route in a physiological basis.
- Knee joint forces in the “Serra da Estrela” territory: the Trails4Health projectPublication . Costa, M.J.; Bragada, José A.; Santos, Catarina C.; Casanova, Natalina; Casanova, Jorge; Bartolomeu, Raúl FilipeThis study aimed to characterize knee joint forces in different trails from the Serra da Estrela with distinct ABSTRACT characteristics. Twenty-nine subjects (20 males and 9 females), mean of 28.04±10.79 years, 1.73±0.09 m of height and 69.59±11.00 kg of body mass volunteered for this study. In separate days, all subjects underwent three hikes (trail 1: circular, 10970m; trail 2: linear, 9053m; trail 3: circular, 7536m). A GPS device (Fenix 5, Garmin, USA) was used to ensure a consistent 5 km.h-1 pace and tracking the slopes. The knee joint forces, namely the maximum patellofemoral compressive force (MaxPcF), the maximum tibiofemoral shear force (MaxTsF) expressed as times the body weight (xBW) and the load equivalent (LE) were estimated. The MaxPcF was 2.1, 1.8 and 2.1, and the MaxTsF was 0.83, 0.80 and 0.83 for trails 1, 2 and 3, respectively. The MaxPcF for trail 1 is equivalent to a flat 17386 m walk, and MaxTsF is equivalent to a 10980 m walk. The MaxPcF for trail 2 is equivalent to a flat 12605 m walk, and MaxTsF is equivalent to an 8320 m walk. The MaxPcF for trail 3 is equivalent to a flat 12357 m walk, and MaxTsF is equivalent to a 7532 m walk. According to the LE, trail 1 can be classified as “moderate”, and trails number 2 and 3 are classified as “pleasant”. Main data suggests that trail number 2 elicited less knee compression and shear forces. In contrast, trails number 1 and 3 are less appropriate for those who suffered from previous knee pain
- The use of net heart rate to estimate energetic expenditure in hiking: the trails4health projectPublication . Bartolomeu, Raúl Filipe; Bragada, José A.; Casanova, Natalina; Casanova, Jorge; Costa, M.J.The net heart rate (HRnet) is known as the HR value above rest as a result of physical activity. Associations between HRnet and energetic expenditure (EE) were already reported for treadmill and stationary bike (Bragada, Bartolomeu & São Pedro, 2017, Motricidade, 13(1), 121–122). The purpose of this study was to extend this approach to hiking and provide an easy way for practitioners to calculate EE and compare it with the healthrelated guidelines. With institutional approval, 29 subjects underwent a 11 km hike in a previously homologated circular route, divided into 9 sections according to the terrain characteristics. The velocity was monitored continuously with a GPS device (Fenix 5, Garmin, USA) to ensure a consistent 5.5 km· h−1 pace. No stops longer than 1 min were allowed. Every subject used a HR monitor (Fenix 5, Garmin, USA). In a different day, all subjects underwent an intermittent and progressive test protocol of 5 × 5 min in a treadmill at progressive velocities (4.5, 6.5, 8.5, 10.5 and 12.5 km· h−1). Both HR and VO2 were measured (MetaMax 3B, Cortex, Germany) allowing the EE calculation. Linear regressions between HRnet vs VO2 and HRnet vs RER (Respiratory Exchange Ratio) were used to make the link between field and lab tests, and predictive equations where retrieved. The measured HRnet values during the hike ranged from 10 to 101 bpm and the correspondent VO2 and EE ranged from 8.2 to 41 ml· kg- −1· min−1 & 2.4 and 15.6 kcal· min−1, respectively. No significant differences were found between genders. For both linear regressions, the mean coefficients of determination were very high (R2 = 0.97 and R2 = 0.95, respectively). The overall value for EE during the 9 stages of the hike were: i) 1.9411; ii) 2.4218; iii) 0.8535; iv) 0.7567; v) 1.6744; vi) 2.5470; vii) 1.4638; viii) 1.7223; and ix) 0.3112 kcal· kg−1. The overall hike EE was 13.76 kcal· kg−1. This allows to previously predict the individual EE and compare it to the standard guidelines. The only individual variable needed to be known is the weight. This approach can be extended to other hiking routes, as long as they are circular. According to this finding, it is possible to estimate the EE by simply applying the formula EE = 0.0013*kg*m, expressed in kcal· kg−1· m−1.
- Trails4Health: Turismo Ativo em Espaços de MontanhaPublication . Costa, M.J.; Santos, Catarina C.; Roque, Vitor; Casanova, Natalina; Casanova, Jorge; Bartolomeu, Raúl Filipe; Bragada, José A.O livro reporta-se para trilhos pedestres da Serra da Estrela. É feita uma avaliação e caracterização de três dos principais trilhos. É apresentada uma avaliação fisiológica dos referidos percursos.