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Chung-Chao Liang, Qi-Xing Change, Yu-Chou Hung, Chizan-Chung Chen, Chun-Hsiang Lin, Yu-Chun Wei and Jia-Ching Chen

aging populations ( Department of Information Services, Executive Yuan, 2015 ). Evidence has suggested that physical performance and balance decline with age ( Auyeung, Lee, Leung, Kwok, & Woo, 2014 ; Ishizaki et al., 2011 ; Wang, Yeh, Wang, Wang, & Lin, 2011 ). Declining mobility and low levels of

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Nai-Hsin Meng, Chia-Ing Li, Chiu-Shong Liu, Wen-Yuan Lin, Chih-Hsueh Lin, Chin-Kai Chang, Tsai-Chung Li and Cheng-Chieh Lin

Objectives:

To compare muscle strength and physical performance among subjects with and without sarcopenia of different definitions.

Design:

A population-based cross-sectional study.

Participants:

857 community residents aged 65 years or older.

Methods:

Sarcopenia was defined according to the European Working Group of Sarcopenia in Older People consensus criteria. Dual-energy X-ray absorptiometry measured lean soft tissue mass. Sarcopenic participants with low height-adjusted or weight-adjusted skeletal muscle index (SMI) were classified as having h-sarcopenia or w-sarcopenia, respectively. Combined sarcopenia (c-sarcopenia) was defined as having either h- or w-sarcopenia. The participants underwent six physical performance tests: walking speed, timed up-and-go, six-minute walk, single-leg stance, timed chair stands, and flexibility test. The strength of five muscle groups was measured.

Results:

Participants with h-sarcopenia had lower weight, body mass index (BMI), fat mass, and absolute muscle strength (p ≤ .001); those with w-sarcopenia had higher weight, BMI, fat mass (p < .001), and low relative muscle strength (p ≤ .003). Participants with c-sarcopenia had poorer performance in all physical performance tests, whereas h-sarcopenia and w-sarcopenia were associated with poor performance in four tests.

Conclusion:

Subjects with h- and w-sarcopenia differ significantly in terms of obesity indicators. Combining height- and weight-adjusted SMIs can be a feasible method to define sarcopenia.

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Milan Chang, Suzanne Leveille, Jiska Cohen-Mansfield and Jack M. Guralnik

The Hebrew Home Study of Impairment and Exercise is a cross-sectional community-based study of nondisabled adults age 75–85 years that assessed attitude toward exercise by asking level of agreement with four statements evaluating participants’ perceptions of the health benefits and personal rewards of exercise. A physical-performance battery evaluated lower extremity function on a scale of 0 to 12. Attitude toward exercise was compared across 4 groups: non-vigorous exercisers with scores of 4–6 (n = 21), 7–9 (n = 90), or 10–12 (n = 113) and vigorous exercisers (n = 71). Vigorous exercisers had a significantly better attitude toward exercise than the reference group did, with odds ratios of 1.8-5.5 in all attitude statements. The lowest and moderate-performance groups had less positive attitudes toward exercise than the reference group did, with odds ratios of 0.27–0.62 for all statements. There was a highly significant gradient with better attitude toward exercise and higher functional-status level. Future work in improving older adults’ compliance with exercise should take into account the less positive attitude of those with functional limitations toward the benefits of exercise.

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Marco Rathschlag and Daniel Memmert

The present study examined the relationship between self-generated emotions and physical performance. All participants took part in five emotion induction conditions (happiness, anger, anxiety, sadness, and an emotion-neutral state) and we investigated their influence on the force of the finger musculature (Experiment 1), the jump height of a counter-movement jump (Experiment 2), and the velocity of a thrown ball (Experiment 3). All experiments showed that participants could produce significantly better physical performances when recalling anger or happiness emotions in contrast to the emotion-neutral state. Experiments 1 and 2 also revealed that physical performance in the anger and the happiness conditions was significantly enhanced compared with the anxiety and the sadness conditions. Results are discussed in relation to the Lazarus (1991a, 2000a) cognitive-motivational-relational (CMR) theory framework.

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Herbert Wagner, Patrick Fuchs, Andrea Fusco, Philip Fuchs, Jeffrey W. Bell and Serge P. von Duvillard

directions, and hard body contacts that are frequently interspersed with low-intensity movements such as standing and walking. 1 – 6 Consequently, in both sexes, physical performance in team handball is essential to tolerate these intense and dynamic movements and to prevent injuries, whereas the

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Javier Horcajo, Borja Paredes, Guillermo Higuero, Pablo Briñol and Richard E. Petty

-task performance, including physical performance ( Hatzigeorgiadis et al., 2011 ; see Tod, Edwards, McGuigan, & Lovell, 2015 for an additional review). This is an important finding, given that physical performance (e.g., maximal strength, endurance, or power) is a key factor of most sports (e.g., see Baechle

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Stephen Harvey, Chris Rissel and Mirjam Pijnappels

physical performance tests all using the Dutch language. All participants were able to comprehend and follow instructions provided in Dutch. The first questionnaire assessed demographic data and bicycling history via basic questions including age, sex, height, weight, if they bicycled, how long they have

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Mário A.M. Simim, Gustavo R. da Mota, Moacir Marocolo, Bruno V.C. da Silva, Marco Túlio de Mello and Paul S. Bradley

objectively identify fatigue using time-motion analysis ( Bradley & Noakes, 2013 ; Paul, Bradley, & Nassis, 2015 ). One fruitful approach is to quantify game-induced fatigue by conducting physical performance tests before and after competitive matches ( Paul et al., 2015 ). Using this approach, a study

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Christopher Rosimus

to evaluate the effect of a 6-week structured and intensive weight-restriction intervention on changes to body composition, vitamin D, iron status, lipid profile, and physical performance of a female squash player. Athlete Profile The athlete was a female professional squash player (19 years, 80.9 kg

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Joel C. Craddock, Yasmine C. Probst and Gregory E. Peoples

Humans consuming vegetarian-based diets are observed to have reduced relative risk for many chronic diseases. Similarly, regular physical activity has also been shown to assist in preventing, and reducing the severity of these conditions. Many people, including athletes, acknowledge these findings and are adopting a vegetarian-based diet to improve their health status. Furthermore, athletes are incorporating this approach with the specific aim of optimizing physical performance. To examine the evidence for the relationship between consuming a predominately vegetarian-based diet and improved physical performance, a systematic literature review was performed using the SCOPUS database. No date parameters were set. The keywords vegetarian OR vegan AND sport OR athlete OR training OR performance OR endurance were used to identify relevant literature. Included studies (i) directly compared a vegetarian-based diet to an omnivorous/mixed diet, (ii) directly assessed physical performance, not biomarkers of physical performance, and (iii) did not use supplementation emulating a vegetarian diet. Reference lists were hand searched for additional studies. Seven randomized controlled trials and one cross-sectional study met the inclusion criteria. No distinguished differences between vegetarian-based diets and omnivorous mixed diets were identified when physical performance was compared. Consuming a predominately vegetarian-based diet did not improve nor hinder performance in athletes. However, with only 8 studies identified, with substantial variability among the studies’ experimental designs, aims and outcomes, further research is warranted.