title: Sleep duration and physical performance during a 6-week military training course

authors: Edgar, David T.

subjects: Science & Technology

abstract: Sleep is vital in influencing effective training adaptations in the military. This study aimed to assess the relationship between sleep and changes in physical performance over 6-weeks of military training. A total of 22 officer-trainees (age: 24 ± 5 y) from the New Zealand Defence Force were used for this observational longitudinal cohort study. Participants wore wrist actigraphs to monitor sleep, completed subjective wellbeing questionnaires weekly, and were tested for: 2.4 km run time-trial, maximum press-up and curl-ups before and after 6-weeks of training. Average sleep duration was calculated over 36-nights (6:10 ± 0:28 h:min), and sleep duration at the mid-point (6:15 h:min) was used to stratify the trainees into two quantile groups (UNDERS: 5:51 ± 0:29 h:min, n =11) and (OVERS: 6:27 ± 0:09 h:min, n =11). There were no significant group x time interactions for 2.4 km run, press-ups, or curl-ups (p >0.05); however, small effects were observed in favour of OVERS for 2.4 km run (59.8 vs 44.9 s; d =0.26) and press-ups (4.7 vs 3.2 reps; d = 0.45). Subjective wellbeing scores resulted in a significant group x time interaction (p <0.05), with large effect sizes in favour of the OVERS group for Fatigue in Week 1 (d =0.90) and Week 3 (d =0.87), and Soreness in Week 3 (d =1.09) and Week 4 (d =0.95). Sleeping more than 6:15 h:min per night over 6-weeks was associated with small benefits to aspects of physical performance and moderate to large benefits on subjective wellbeing measures when compared to sleeping less than 6:15 h:min.

text: Sleep duration and physical performance during a 6-week military training course Sleep is vital in influencing effective training adaptations in the military. This study aimed to assess the relationship between sleep and changes in physical performance over 6-weeks of military training. A total of 22 officer-trainees (age: 24 ± 5 y) from the New Zealand Defence Force were used for this observational longitudinal cohort study. Participants wore wrist actigraphs to monitor sleep, completed subjective wellbeing questionnaires weekly, and were tested for: 2.4 km run time-trial, maximum press-up and curl-ups before and after 6-weeks of training. Average sleep duration was calculated over 36-nights (6:10 ± 0:28 h:min), and sleep duration at the mid-point (6:15 h:min) was used to stratify the trainees into two quantile groups (UNDERS: 5:51 ± 0:29 h:min, n =11) and (OVERS: 6:27 ± 0:09 h:min, n =11). There were no significant group x time interactions for 2.4 km run, press-ups, or curl-ups (p >0.05); however, small effects were observed in favour of OVERS for 2.4 km run (59.8 vs 44.9 s; d =0.26) and press-ups (4.7 vs 3.2 reps; d = 0.45). Subjective wellbeing scores resulted in a significant group x time interaction (p <0.05), with large effect sizes in favour of the OVERS group for Fatigue in Week 1 (d =0.90) and Week 3 (d =0.87), and Soreness in Week 3 (d =1.09) and Week 4 (d =0.95). Sleeping more than 6:15 h:min per night over 6-weeks was associated with small benefits to aspects of physical performance and moderate to large benefits on subjective wellbeing measures when compared to sleeping less than 6:15 h:min.

year: 2021-05-25

title: Weeds and the Rotorua Lakes

authors: Clayton, John

abstract: The Rotorua Lakes are of volcanic origin and they form an integral feature of the regions landscape. No other region in New Zealand has such an interesting combination of lakes in close proximity, each of which offers unique cultural values and a diversity of
recreational activities.
Rotorua lake weeds rose to public and political prominence in the 1960s and the first seminar addressing this issue was held in 1964. A second meeting followed in 1966 with a ‘Seminar on Water Weeds’. These seminars involved outside experts and many will
remember Prof Val Chapman, University of Auckland, who had a prominent role supervising research on these weed problems with his students. I was his last PhD student before he retired in c. 1975.
This talk will provide an outline of key changes in the Rotorua Lakes over time by focusing on the aquatic plants. The aquatic plants in a lake provide a window into understanding the health and condition of each lake and this talk explains how native and invasive plants can be used to assess or describe lake condition, enabling lakes to be ranked, monitored and compared. The native condition of each lake has been compromised by two key impacts; invasive plant species and declining water clarity. Other potential impacts are also discussed. Key invasive weed species will be illustrated and discussed, including their spread and ecological impacts. Some of the history of management response will be discussed along with some thoughts about the future.

text: Weeds and the Rotorua Lakes The Rotorua Lakes are of volcanic origin and they form an integral feature of the regions landscape. No other region in New Zealand has such an interesting combination of lakes in close proximity, each of which offers unique cultural values and a diversity of
recreational activities.
Rotorua lake weeds rose to public and political prominence in the 1960s and the first seminar addressing this issue was held in 1964. A second meeting followed in 1966 with a ‘Seminar on Water Weeds’. These seminars involved outside experts and many will
remember Prof Val Chapman, University of Auckland, who had a prominent role supervising research on these weed problems with his students. I was his last PhD student before he retired in c. 1975.
This talk will provide an outline of key changes in the Rotorua Lakes over time by focusing on the aquatic plants. The aquatic plants in a lake provide a window into understanding the health and condition of each lake and this talk explains how native and invasive plants can be used to assess or describe lake condition, enabling lakes to be ranked, monitored and compared. The native condition of each lake has been compromised by two key impacts; invasive plant species and declining water clarity. Other potential impacts are also discussed. Key invasive weed species will be illustrated and discussed, including their spread and ecological impacts. Some of the history of management response will be discussed along with some thoughts about the future.

year: 2015

title: E kui Rāwinia

authors: Maxwell, Te Kahautu

subjects: Waiata tangi

abstract: He waiata tangi tēnei mō Rāwinia Te Kani he uri nō Te Whakatōhea.  I whānau mai a Rāwinia ki roto o Ngāti Rua he hapū nō Te Whakatōhea, i pakeke mai ia ki roto o Ngāti Rua ki Ōmarumutu, ā, i kuraina ia ki reira.  He wahine rongonui a Rāwinia ki roto o Tūranga i moe ia i a Tokorua Te Kani he ariki nō roto o Tūranga.  Hoi anō he wahine haka a Rāwinia he kuia tāngia ki te moko kauae me te tautoko i ngā mokopū wānanga puta i te motu.  He waiata tangi tēnei mōna nā tana iwi a Te Whakatōhea.

text: E kui Rāwinia He waiata tangi tēnei mō Rāwinia Te Kani he uri nō Te Whakatōhea.  I whānau mai a Rāwinia ki roto o Ngāti Rua he hapū nō Te Whakatōhea, i pakeke mai ia ki roto o Ngāti Rua ki Ōmarumutu, ā, i kuraina ia ki reira.  He wahine rongonui a Rāwinia ki roto o Tūranga i moe ia i a Tokorua Te Kani he ariki nō roto o Tūranga.  Hoi anō he wahine haka a Rāwinia he kuia tāngia ki te moko kauae me te tautoko i ngā mokopū wānanga puta i te motu.  He waiata tangi tēnei mōna nā tana iwi a Te Whakatōhea.

year: 2016