Ventilatory acclimatisation is beneficial for high-intensity exercise at altitude in elite cyclists

Aim: The aim of this study was to examine the relationship between ventilatory adaptation and performance during altitude training at 2700?m. Methods: Seven elite cyclists (age: 21.2?±?1.1?yr, body mass: 69.9?±?5.6?kg, height 176.3?±?4.9?cm) participated in this study. A hypoxic ventilatory response (HVR) test and a submaximal exercise test were performed at sea level prior to the training camp and again after 15 d at altitude (ALT15). Ventilation (V_E), end-tidal carbon-dioxide partial pressure (P_ETCO₂) and oxyhaemoglobin saturation via pulse oximetry (SpO₂) were measured at rest and during submaximal cycling at 250?W. A hill climb (HC) performance test was conducted at sea level and after 14 d at altitude (ALT14) using a road of similar length (5.5–6?km) and gradient (4.8–5.3%). Power output was measured using SRM cranks. Average HC power at ALT14 was normalised to sea level power (HC%). Multiple regression was used to identify significant predictors of performance at altitude. Results: At ALT15, there was a significant increase in resting V_E (10.3?±?1.9 vs. 12.2?±?2.4?L·min^?1) and HVR (0.34?±?0.24 vs. 0.71?±?0.49?L·min^?1·%^?1), while P_ETCO₂ (38.4?±?2.3 vs. 32.1?±?3.3?mmHg) and SpO₂ (97.9?±?0.7 vs. 94.0?±?1.7%) were reduced (P?V_E at altitude as significant predictors of HC% (adjusted r²?=?0.913; P?=?0.003). Conclusions: Ventilatory acclimatisation occurred during a 2 wk altitude training camp in elite cyclists and a higher HVR was associated with better performance at altitude, relative to sea level. These results suggest that ventilatory acclimatisation is beneficial for cycling performance at altitude.     

Advocating for transgender and nonbinary affirmative spaces in graduate education

Higher Education - Nearly 50% of graduate students report experiencing emotional or psychological distress during their enrollment in graduate school. Levels of distress are particularly high for...     

Television viewing at home: age trends in visual attention and time with TV

The TV-viewing behavior of 99 families with young children was videotaped by automated time-lapse recording equipment placed in homes for 10-day periods. The 99 families comprised 460 individuals from infants to 62 years of age. Time-sample analyses of 4,672 hours of recordings indicated that the TV-viewing room contained no viewers 14.7% of the time that the TV was on. There were no age trends in time spent with television. Percent visual attention to television increased greatly across the preschool years, leveled off at about 70% during the school-age years, and declined in adulthood. Men looked at the TV more than women. There were no significant correlations between time spent with TV and percent of visual attention to TV. The increase in visual attention to television during the preschool years is consistent with the theory that TV program comprehensibility is a major determination of attention in young children.     

Minds, Brains, and Education: Part II. Responding to the Commentaries

The present authors wrote a paper on cognitive neuroscience (i.e., Byrnes and Fox, 1998) that spawned a number of commentaries. In the present paper, they respond to these commentaries. Using a theme-based approach, they reveal an emerging consensus regarding the educational relevance of neuroscientific research.     

The Privilege of Ease: Social Class and Campus Life at Highly Selective,Private Universities

Active involvement in college activities is linked to a host of student development outcomes, including personal growth, achievement and satisfaction. Yet, to date there has been too little attention to how social class shapes campus involvement. Through an analysis of survey data of students attending a single elite university and a national sample of students at highly selective, private universities, I consider how class background is associated with participation in college activities and satisfaction with campus social life. Reflecting a history of class-based exclusion, the typical elite university student enters college from an affluent household, although distinct class fractions help conceal significant gaps and differences across the college years. Dominant class students devote considerable time to social and recreational activities, while middle and subordinate class students are more likely to have a part-time job to pay for college expenses. This pattern of campus involvement explains middle and subordinate class students’ lower levels of satisfaction upon graduation.     

Bullying and School Liability—Implications for School Personnel

Bullying is a serious and escalating problem in public schools across America. Each day, thousands of students face taunts and humiliation stemming from bullies. Bullying victims experience emotional and psychological problems that may persist for a lifetime. Other victims commit suicide or retaliate against bullies out of fear for their own safety. Because the courts presume that schools are safe places, teachers and administrators have a leading responsibility to protect students from the harmful behavior exhibited by bullies. They are expected to foresee that bullying is a harmful activity and initiate appropriate steps to eliminate it.

This article discusses the magnitude of the problem of bullying in public schools and the threat of liability for school personnel who fail to respond to bullying incidents. It concludes with a set of guides that should assist teachers and administrators in protecting students from foreseeable harm while minimizing their legal exposure to law suits based on negligence.     

“Let Me Be Direct”: Using Direct Assessments With Student Leaders

Nathan Lindsay, Aimee Hourigan, Jennifer Smist, and Larry Wray discuss the benefits of direct assessment of student learning in a variety of co‐curricular programs.