title: Caffeine-carbohydrate mouth-rinsing counter-acts an observed negative effect of mouth-rinsing procedure during sprint-endurance training performance in fasted athletes: A pilot study

authors: Washif, Jad Adrian

subjects: Athletics

abstract: Carbohydrate mouth-rinsing has been reported to benefit endurance performance in athletes intermittently fasting; however, in the fasted state, the effects of combined caffeine and carbohydrate (CAF-CHO) mouth-rinsing on sprint-endurance performance are unknown. We determined the effects of CAF-CHO mouth-rinsing on kinetics, kinematics, and perceptual measures during a sprint-endurance performance commonly performed by track and field athletes in Muslim athletes fasting during Ramadan. In a randomised and counterbalanced single-blind study, ten national-level male sprinters and sprint/middle-distance runners (21.0 ± 2.0 y) participated in this study. They performed three sprint-endurance sessions on a non-motorised treadmill within the second and third weeks of Ramadan. Each session consisted of 3x15-s all-out sprints, with 2-min active recovery between each sprint. In each session, athletes either did not mouth rinse (NMR), or rinsed with 25 mL of CAF-CHO (4 g carbohydrate, 5 mg caffeine), or a placebo solution (PLA) prior to warm-up (30-min pre-trial), 1-min pre-trial, and mid-way through every recovery period. CAF-CHO maximised total sprint distance relative to NMR (210.3 ± 7.8 vs. 208.7 ± 9.1 m, d = 0.20), whilst counteracted the attenuation following PLA (204.6 ± 8.7 m; d = 0.66). Relative to NMR, CAF-CHO increased perceived activation prior to each sprint (p < 0.05, d = 1.23–2.05). Post-trial perceived exertion was lower for CAF-CHO (d = 0.12) and PLA (d = 0.58) compared to NMR (p > 0.05). Athletes indicated ‘no’ (50%) or ‘unsure’ (50%) whether mouth-rinsing would improve performance. The results suggest that CAF-CHO has a potential to optimise, and counter-act the negative effect of mouth-rinsing in Ramadan-fasted Muslims having a negative attitude towards this procedure.

text: Caffeine-carbohydrate mouth-rinsing counter-acts an observed negative effect of mouth-rinsing procedure during sprint-endurance training performance in fasted athletes: A pilot study Carbohydrate mouth-rinsing has been reported to benefit endurance performance in athletes intermittently fasting; however, in the fasted state, the effects of combined caffeine and carbohydrate (CAF-CHO) mouth-rinsing on sprint-endurance performance are unknown. We determined the effects of CAF-CHO mouth-rinsing on kinetics, kinematics, and perceptual measures during a sprint-endurance performance commonly performed by track and field athletes in Muslim athletes fasting during Ramadan. In a randomised and counterbalanced single-blind study, ten national-level male sprinters and sprint/middle-distance runners (21.0 ± 2.0 y) participated in this study. They performed three sprint-endurance sessions on a non-motorised treadmill within the second and third weeks of Ramadan. Each session consisted of 3x15-s all-out sprints, with 2-min active recovery between each sprint. In each session, athletes either did not mouth rinse (NMR), or rinsed with 25 mL of CAF-CHO (4 g carbohydrate, 5 mg caffeine), or a placebo solution (PLA) prior to warm-up (30-min pre-trial), 1-min pre-trial, and mid-way through every recovery period. CAF-CHO maximised total sprint distance relative to NMR (210.3 ± 7.8 vs. 208.7 ± 9.1 m, d = 0.20), whilst counteracted the attenuation following PLA (204.6 ± 8.7 m; d = 0.66). Relative to NMR, CAF-CHO increased perceived activation prior to each sprint (p < 0.05, d = 1.23–2.05). Post-trial perceived exertion was lower for CAF-CHO (d = 0.12) and PLA (d = 0.58) compared to NMR (p > 0.05). Athletes indicated ‘no’ (50%) or ‘unsure’ (50%) whether mouth-rinsing would improve performance. The results suggest that CAF-CHO has a potential to optimise, and counter-act the negative effect of mouth-rinsing in Ramadan-fasted Muslims having a negative attitude towards this procedure.

year: 2022-01-01

title: Time-varying risk premia in the term structure of interest rates in New Zealand

authors: Margaritis, Daimitri

subjects: New Zealand

abstract: An empirical analysis of the term structure of interest rates in New Zealand during the post-1985 financial liberalization period is presented. Particular emphasis is placed upon the effect of time-varying risk premia in the term structure equation. The risk premium is assumed to depend on the time-varying conditional variance of the excess holding yield. The results indicate that the expectations theory cannot be rejected at the short end of the term structure provided that account is taken of the volatility clustering in interest rate data. There is also support for the expectations theory in the term structure relationship between long-term and short-term interest rates. The results do not indicate excess over- or under-sensitivity of long rates to current short rates. Initial statistical evidence suggests that excess returns on long-term bonds can be explained by their lagged values and macroeconomic variables. However, this return predictability is removed once the effects of changing real and nominal uncertainty are accounted for in the term structure equation. The latter result suggests that a monetary policy of low and stable inflation can affect the risk characteristics of long-term bonds. The presence of varying real uncertainty in bond returns indicates that the slope of the yield curve may not be a reliable indicator for assessing inflationary pressures in the economy when compared to a situation where the variation in bond returns was solely driven by nominal uncertainty.

text: Time-varying risk premia in the term structure of interest rates in New Zealand An empirical analysis of the term structure of interest rates in New Zealand during the post-1985 financial liberalization period is presented. Particular emphasis is placed upon the effect of time-varying risk premia in the term structure equation. The risk premium is assumed to depend on the time-varying conditional variance of the excess holding yield. The results indicate that the expectations theory cannot be rejected at the short end of the term structure provided that account is taken of the volatility clustering in interest rate data. There is also support for the expectations theory in the term structure relationship between long-term and short-term interest rates. The results do not indicate excess over- or under-sensitivity of long rates to current short rates. Initial statistical evidence suggests that excess returns on long-term bonds can be explained by their lagged values and macroeconomic variables. However, this return predictability is removed once the effects of changing real and nominal uncertainty are accounted for in the term structure equation. The latter result suggests that a monetary policy of low and stable inflation can affect the risk characteristics of long-term bonds. The presence of varying real uncertainty in bond returns indicates that the slope of the yield curve may not be a reliable indicator for assessing inflationary pressures in the economy when compared to a situation where the variation in bond returns was solely driven by nominal uncertainty.

year: 1994

title: Te Rau Puawai 2002-2004: An evaluation

authors: Nikora, Linda Waimarie

subjects: evaluation

abstract: Established in 1999 as a joint workforce initiative between the former Health Funding Authority and Massey University, Te Rau Puawai aimed to support 100 Maori students to graduate with mental health qualifications within a five year period. The goal of Te Rau Puawai is to contribute to the building of capacity for Maori in the mental health workforce. The programme exceeded its performance expectations in the first two years (1999-2001) with 56 bursars completing their qualifications. Bursars achieved an 80% pass rate compared with 65% for all students at Massey University as a whole. In 2004, this pass rate has continued, a significant achievement in light of increasing numbers of bursars being accepted and many without previously studying at the tertiary level.

In 2001 the Maori & Psychology Research Unit (MPRU) at the University of Waikato undertook an evaluation of Te Rau Puawai reporting on the programme's success and identifying any barriers the programme needed to address. The 2002 evaluation report outlines critical success factors and recommendations for improvement. In 2003 Te Rau Puawai negotiated further funding from the Mental Health Directorate (MeHD) of the Ministry of Health under the Mental Health Workforce Development Strategy (2002). Workforce development is critical in building capacity and capability in the mental health workforce to increase appropriately skilled workers required to meet the mental health needs of Maori communities. In 2004 the Ministry of Health requested a follow-up evaluation to provide a descriptive record of programme activities and progress from April 2002 to December 2004. This report provides an overview of Te Rau Puawai activities between 2002 and 2004; the progress and contributions made by bursars to the mental health workforce; and a reassessment of the programme's critical success factors.

text: Te Rau Puawai 2002-2004: An evaluation Established in 1999 as a joint workforce initiative between the former Health Funding Authority and Massey University, Te Rau Puawai aimed to support 100 Maori students to graduate with mental health qualifications within a five year period. The goal of Te Rau Puawai is to contribute to the building of capacity for Maori in the mental health workforce. The programme exceeded its performance expectations in the first two years (1999-2001) with 56 bursars completing their qualifications. Bursars achieved an 80% pass rate compared with 65% for all students at Massey University as a whole. In 2004, this pass rate has continued, a significant achievement in light of increasing numbers of bursars being accepted and many without previously studying at the tertiary level.

In 2001 the Maori & Psychology Research Unit (MPRU) at the University of Waikato undertook an evaluation of Te Rau Puawai reporting on the programme's success and identifying any barriers the programme needed to address. The 2002 evaluation report outlines critical success factors and recommendations for improvement. In 2003 Te Rau Puawai negotiated further funding from the Mental Health Directorate (MeHD) of the Ministry of Health under the Mental Health Workforce Development Strategy (2002). Workforce development is critical in building capacity and capability in the mental health workforce to increase appropriately skilled workers required to meet the mental health needs of Maori communities. In 2004 the Ministry of Health requested a follow-up evaluation to provide a descriptive record of programme activities and progress from April 2002 to December 2004. This report provides an overview of Te Rau Puawai activities between 2002 and 2004; the progress and contributions made by bursars to the mental health workforce; and a reassessment of the programme's critical success factors.

year: 2005-01-01